Pipeline run
b6ac0e57-d015-451d-b79a-13b76a438874
Client output enrichment
v2 Skill cluster · Nature of work · AI index · Tech stack maturity · Evidence · KRA descriptionvocab breakdown (legacy)
Signals
Post-classification
Captured for admin review
1 POST /skills/extract-from-jd
2 POST /skills/extract-details
3 POST /skills/final-role-output
Frontend Engineer
CASE Aslug: frontend-engineer · id: 7 · source: db
Primary skills strongly indicate a role focused on web development with HTML, CSS, JavaScript, React, SEO, and Web Analytics.
Resolution:
in_db
— role exists in library; skill↔dim and role↔dim links saved when applicable.
Job description
Frontend Engineer — Job Description Job Title: Frontend Engineer Experience: 4+ Years Location: Remote / Hybrid / Onsite About the Role We are seeking a talented Frontend Engineer to build modern, scalable, and high-performing web applications. The ideal candidate should have strong expertise in frontend technologies, responsive design, and performance optimization while collaborating closely with product, design, and backend teams. Key Responsibilities Develop and maintain user-facing features for web applications Collaborate with UI/UX designers to translate designs into responsive interfaces Ensure technical feasibility of UI/UX designs Write reusable, scalable, and maintainable frontend code Optimize applications for maximum speed and scalability Ensure cross-browser compatibility and responsive behavior across devices Work closely with backend engineers for API integrations Improve SEO performance and web analytics implementation Break down business requirements into smaller technical features and tasks Participate in code reviews and frontend architecture discussions Requirements and Qualifications • Bachelor’s or master degree in engineering • 4+ years of work experience. • Proficient understanding of HTML, CSS, and Javascript • Proficient understanding of ReactJs or similar library • Good understanding of responsive web development • Good understanding of SEO and analytics • Ability to break the business problem into smaller features • Ability to access the technical feasibility of UI/UX designs • Build reusable code and libraries for future use • Optimize application for maximum speed and scalability • Proficient understanding of cross-browser compatibility
Skills from this JD
Each row merges API 1 extraction, API 2 library match / v3 orchestration (dimensions + locked dims), and API 3 persistence tags.
Skill enrichment (orchestrator / LLM)
HTML appears in a very high volume of job descriptions across frontend, full-stack, and CMS roles; it remains a baseline web skill and is not superseded by a newer standard.
(0.95)
HTML is a specific markup language; typical JDs won’t confuse it with other distinct skills in the catalog.
Not versioned
Format ·markup_language confidence 0.99
HTML is a markup language that specifies document structure and presentation, so by the Language vs Format rule it is best treated as a Format in this typology.
- Category
- Format
- Sub-category
- markup_language
- Skill nature
- STANDARD
- Volatility
- STABLE
- Typical lifespan
- EVERGREEN
- Version strategy
- NOT_APPLICABLE
Dimensions (API 2 worklist)
-
React Frontend Development Catalog dimension db id 96
Library dimension (catalog)
Locked dimensions (v3 placement)
-
HTML Markup Structure
Pipeline tentative id
HTML is the core markup language used to define the structure and semantics of web pages. It belongs here because frontend engineers use it to build document hierarchy, forms, media, and accessible page content.
API 3 link attempts (this skill)
| Dimension | Skill↔dim | Role↔dim | Outcome |
|---|---|---|---|
|
React Frontend Development
d_init_01
|
✓ | — | New skill saved · Existing dimension (library) · Role↔dimension skipped (dimension not under chosen role) |
Aliases — catalog
- CSS (CANONICAL) primary
Context tags (catalog)
Stored enrichment (catalog DB)
- Category
- Language
- Sub-category
- Stylesheet Language
- Vendor
- W3C
- License
- unknown
- Year introduced
- 1996
- Confidence
- 0.99
- Version strategy
- NOT_APPLICABLE
Maturity reasoning: CSS is a core front-end skill in most web JDs and remains standard in MDN/browser docs; it’s broadly used alongside HTML/JS rather than being replaced by a successor.
Skill profile (library / DB)
- Skill nature
- STANDARD
- Volatility
- STABLE
- Typical lifespan
- EVERGREEN
- Category id
- 4
- Sub-category id
- 1068
- Extractable
- True
- Also category
- False
Dimensions (API 2 worklist)
-
CSS Architecture and Styling Catalog dimension db id 117
Library dimension (catalog)
Roles linked in library: Frontend Engineer, Full Stack Engineer
API 3 link attempts (this skill)
| Dimension | Skill↔dim | Role↔dim | Outcome |
|---|---|---|---|
|
CSS Architecture and Styling
css-architecture-and-styling
|
✓ | ✓ | Existing dimension (library) · Role↔dimension saved |
Aliases — catalog
- JavaScript (CANONICAL) primary
- ES2015 (VERSION)
- ES2016 (VERSION)
- ES2017 (VERSION)
- ES2018 (VERSION)
- ES2019 (VERSION)
- ES2020 (VERSION)
- ES2021 (VERSION)
- ES2022 (VERSION)
- ES2023 (VERSION)
- ES2024 (VERSION)
- ES5 (VERSION)
- ES6 (VERSION)
- JavaScript ES2015 (VERSION)
- JavaScript ES2020 (VERSION)
- JavaScript ES6 (VERSION)
- modern JavaScript (VERSION)
Context tags (catalog)
Stored enrichment (catalog DB)
- Category
- Language
- Sub-category
- Programming Language
- Vendor
- Mozilla
- License
- mpl
- Year introduced
- 1995
- Confidence
- 0.99
- Version strategy
- NOT_APPLICABLE
Maturity reasoning: JavaScript appears in a very high volume of job postings across frontend, backend, and full-stack roles, and remains a core language in major ecosystems like Node.js and React.
Skill profile (library / DB)
- Skill nature
- LANGUAGE
- Volatility
- STABLE
- Typical lifespan
- EVERGREEN
- Category id
- 6
- Sub-category id
- 96
- Extractable
- True
- Also category
- False
Dimensions (API 2 worklist)
-
Cross-Platform App Languages Catalog dimension db id 167
Library dimension (catalog)
Roles linked in library: Hybrid Mobile Developer
-
JavaScript and TypeScript Catalog dimension db id 114
Library dimension (catalog)
Roles linked in library: Frontend Engineer
-
Programming Languages Catalog dimension db id 1
Library dimension (catalog)
Roles linked in library: Backend Engineer, Full Stack Engineer
API 3 link attempts (this skill)
| Dimension | Skill↔dim | Role↔dim | Outcome |
|---|---|---|---|
|
Cross-Platform App Languages
cross-platform-app-languages
|
✓ | — | Existing dimension (library) · Role↔dimension skipped (dimension not under chosen role) |
|
JavaScript and TypeScript
javascript-and-typescript
|
✓ | ✓ | Existing dimension (library) · Role↔dimension saved |
|
Programming Languages
programming-languages
|
✓ | — | Existing dimension (library) · Role↔dimension skipped (dimension not under chosen role) |
Aliases — catalog
- React (CANONICAL) primary
- React 0.13 (VERSION)
- React 0.14 (VERSION)
- React 15 (VERSION)
- React 15.x (VERSION)
- React 16 (VERSION)
- React 16.x (VERSION)
- React 17 (VERSION)
- React 17.x (VERSION)
- React 18 (VERSION)
- React 18.x (VERSION)
- React 19 (VERSION)
- React v15 (VERSION)
- React v16 (VERSION)
- React v17 (VERSION)
- React v18 (VERSION)
- React v19 (VERSION)
- ReactJS 18 (VERSION)
- react 15 (VERSION)
- react 16 (VERSION)
- react 17 (VERSION)
- react 18 (VERSION)
- react 19 (VERSION)
- react15 (VERSION)
- react16 (VERSION)
- react17 (VERSION)
- react18 (VERSION)
- react19 (VERSION)
- reactjs 18 (VERSION)
Context tags (catalog)
Stored enrichment (catalog DB)
- Category
- Framework
- Sub-category
- Frontend Framework
- Vendor
- Meta
- License
- mit
- Year introduced
- 2013
- Confidence
- 0.98
- Version strategy
- SEPARATE_ENTITY
- Version tag
- 18
Maturity reasoning: React appears in high-volume frontend job postings across startups and enterprises and remains a default hiring-pipeline skill, with strong GitHub/npm usage and ecosystem activity.
Skill profile (library / DB)
- Skill nature
- FRAMEWORK
- Volatility
- STABLE
- Typical lifespan
- EVERGREEN
- Category id
- 5
- Sub-category id
- 1072
- Extractable
- True
- Also category
- False
Dimensions (API 2 worklist)
-
UI Frameworks and Rendering Catalog dimension db id 115
Library dimension (catalog)
Roles linked in library: Frontend Engineer, Full Stack Engineer, Hybrid Mobile Developer
API 3 link attempts (this skill)
| Dimension | Skill↔dim | Role↔dim | Outcome |
|---|---|---|---|
|
UI Frameworks and Rendering
ui-frameworks-and-rendering
|
✓ | ✓ | Existing dimension (library) · Role↔dimension saved |
Skill enrichment (orchestrator / LLM)
SEO appears in large volumes of marketing, content, and growth job descriptions across industries; Google Search Central and major CMS vendors continue to publish active guidance, indicating broad ongoing demand.
(0.90)
SEO is a specific, widely used term for search engine optimization; unlikely to be confused with another catalog skill.
Not versioned
Domain ·search_engine_optimization confidence 0.98
SEO is a vertical body of knowledge and practice about improving search visibility, so by the Domain rule it is not a tool, methodology, or concept.
- Category
- Domain
- Sub-category
- search_engine_optimization
- Skill nature
- CONCEPT
- Volatility
- STABLE
- Typical lifespan
- EVERGREEN
- Version strategy
- NOT_APPLICABLE
Dimensions (API 2 worklist)
-
React Frontend Development Catalog dimension db id 96
Library dimension (catalog)
Locked dimensions (v3 placement)
-
Search Engine Optimization
Pipeline tentative id
Practices for improving a website's visibility in search engine results. This includes technical, on-page, and content signals that help pages get crawled, indexed, and ranked, which is why SEO fits here.
API 3 link attempts (this skill)
| Dimension | Skill↔dim | Role↔dim | Outcome |
|---|---|---|---|
|
React Frontend Development
d_init_01
|
✓ | — | New skill saved · Existing dimension (library) · Role↔dimension skipped (dimension not under chosen role) |
Skill enrichment (orchestrator / LLM)
Web analytics is a common requirement in marketing, product, and e-commerce JDs, with tools like GA4, Adobe Analytics, and Tag Manager widely listed across roles.
(0.80)
“Web Analytics” is a specific domain focused on measuring website/app performance; it’s unlikely to be confused with other distinct skills in typical JDs.
Not versioned
Domain ·web_analytics confidence 0.93
Web Analytics is a vertical/problem-space body of knowledge about measuring and analyzing website traffic and user behavior, so it fits the Domain type rather than a tool, framework, or methodology.
- Category
- Domain
- Sub-category
- web_analytics
- Skill nature
- CONCEPT
- Volatility
- STABLE
- Typical lifespan
- EVERGREEN
- Version strategy
- NOT_APPLICABLE
Dimensions (API 2 worklist)
-
React Frontend Development Catalog dimension db id 96
Library dimension (catalog)
Locked dimensions (v3 placement)
-
Web Analytics Instrumentation
Pipeline tentative id
Implementation of tracking on websites and web apps to measure user behavior, traffic, and conversion events. This fits Web Analytics because frontend engineers often add and maintain the event tags, data layer, and page instrumentation that feed analytics platforms.
API 3 link attempts (this skill)
| Dimension | Skill↔dim | Role↔dim | Outcome |
|---|---|---|---|
|
React Frontend Development
d_init_01
|
✓ | — | New skill saved · Existing dimension (library) · Role↔dimension skipped (dimension not under chosen role) |
Aliases — catalog
- Code Review (CANONICAL)
Context tags (catalog)
Stored enrichment (catalog DB)
- Category
- SoftSkill
- Sub-category
- Code Review
- Confidence
- 0.96
- Version strategy
- NOT_APPLICABLE
Maturity reasoning: Code review is a standard hiring-pipeline requirement in engineering JDs and is built into major platforms like GitHub/GitLab pull-request workflows, indicating broad adoption.
Skill profile (library / DB)
- Skill nature
- PRACTICE
- Volatility
- STABLE
- Typical lifespan
- EVERGREEN
- Category id
- 58
- Sub-category id
- 364
- Extractable
- True
- Also category
- False
Dimensions (API 2 worklist)
-
React Frontend Development Catalog dimension db id 96
Library dimension (catalog)
API 3 link attempts (this skill)
| Dimension | Skill↔dim | Role↔dim | Outcome |
|---|---|---|---|
|
React Frontend Development
d_init_01
|
✓ | — | Existing dimension (library) · Role↔dimension skipped (dimension not under chosen role) |
All API 3 persistence rows
Same grid as the skill-extractor “Persistence items” table: one row per (skill × dimension) work item.
| Skill | Tag | Dimension | Skill↔dim | Role↔dim | Outcome | Notes |
|---|---|---|---|---|---|---|
| CSS | in_db |
CSS Architecture and Styling
css-architecture-and-styling
|
✓ | ✓ | Existing dimension (library) · Role↔dimension saved | |
| JavaScript | in_db |
Cross-Platform App Languages
cross-platform-app-languages
|
✓ | — | Existing dimension (library) · Role↔dimension skipped (dimension not under chosen role) | |
| JavaScript | in_db |
JavaScript and TypeScript
javascript-and-typescript
|
✓ | ✓ | Existing dimension (library) · Role↔dimension saved | |
| JavaScript | in_db |
Programming Languages
programming-languages
|
✓ | — | Existing dimension (library) · Role↔dimension skipped (dimension not under chosen role) | |
| React | in_db |
UI Frameworks and Rendering
ui-frameworks-and-rendering
|
✓ | ✓ | Existing dimension (library) · Role↔dimension saved | |
| Code Review | in_db |
React Frontend Development
d_init_01
|
✓ | — | Existing dimension (library) · Role↔dimension skipped (dimension not under chosen role) | |
| HTML | in_db |
React Frontend Development
d_init_01
|
✓ | — | New skill saved · Existing dimension (library) · Role↔dimension skipped (dimension not under chosen role) | |
| SEO | in_db |
React Frontend Development
d_init_01
|
✓ | — | New skill saved · Existing dimension (library) · Role↔dimension skipped (dimension not under chosen role) | |
| Web Analytics | in_db |
React Frontend Development
d_init_01
|
✓ | — | New skill saved · Existing dimension (library) · Role↔dimension skipped (dimension not under chosen role) |
Library artifacts (this run)
| Kind | Detail | DB id |
|---|---|---|
| canonical_skill_added | HTML | 1657 |
| canonical_skill_added | SEO | 1658 |
| canonical_skill_added | Web Analytics | 1659 |
| dimension_skill_link | HTML ↔ React Frontend Development | 96 |
| dimension_skill_link | SEO ↔ React Frontend Development | 96 |
| dimension_skill_link | Web Analytics ↔ React Frontend Development | 96 |
nano JD Parser — gpt-4.1-nano click to toggle
Show raw JSON
{
"JD_type": "pass",
"about_company": null,
"certifications": [],
"company_name": null,
"ctc": null,
"domain": {
"primary": {
"aliases": [],
"domain": "Software \u0026 SaaS Products"
},
"secondary": null
},
"education": [
{
"level": "Bachelor\u0027s",
"qualification": "BTECH/BE/BSC - Engineering",
"raw": "Bachelor\u2019s or master degree in engineering",
"requirement": "required"
}
],
"experience": {
"max": null,
"min": 4,
"raw": "4+ Years"
},
"job_locations": [
{
"aliases": [],
"city": null,
"country": null,
"state": null,
"work_mode": "hybrid"
}
],
"role": "Frontend Engineer",
"role_aliases": [
"Frontend Developer",
"UI Engineer",
"Web Developer"
],
"role_archetype": "Engineering",
"roles_and_responsibilities": [
{
"bullet_count": 10,
"heading": "Key Responsibilities",
"heading_was_present": true,
"source_marker": {
"first_5_words": "Develop and maintain user-facing features",
"last_5_words": "frontend architecture discussions"
},
"text": "Develop and maintain user-facing features for web applications\nCollaborate with UI/UX designers to translate designs into responsive interfaces\nEnsure technical feasibility of UI/UX designs\nWrite reusable, scalable, and maintainable frontend code\nOptimize applications for maximum speed and scalability\nEnsure cross-browser compatibility and responsive behavior across devices\nWork closely with backend engineers for API integrations\nImprove SEO performance and web analytics implementation\nBreak down business requirements into smaller technical features and tasks\nParticipate in code reviews and frontend architecture discussions",
"word_count": 104
},
{
"bullet_count": 11,
"heading": "Requirements and Qualifications",
"heading_was_present": true,
"source_marker": {
"first_5_words": "\u2022 Bachelor\u2019s or master degree in",
"last_5_words": "understanding of cross-browser compatibility"
},
"text": "\u2022 Bachelor\u2019s or master degree in engineering\n\u2022 4+ years of work experience.\n\u2022 Proficient understanding of HTML, CSS, and Javascript\n\u2022 Proficient understanding of ReactJs or similar library\n\u2022 Good understanding of responsive web development\n\u2022 Good understanding of SEO and analytics\n\u2022 Ability to break the business problem into smaller features\n\u2022 Ability to access the technical feasibility of UI/UX designs\n\u2022 Build reusable code and libraries for future use\n\u2022 Optimize application for maximum speed and scalability\n\u2022 Proficient understanding of cross-browser compatibility",
"word_count": 92
}
],
"urls": []
}
API 1 — extract-from-jd click to toggle
{
"final_skills": [
{
"is_primary": true,
"skill_name": "HTML"
},
{
"is_primary": true,
"skill_name": "CSS"
},
{
"is_primary": true,
"skill_name": "JavaScript"
},
{
"is_primary": true,
"skill_name": "React"
},
{
"is_primary": true,
"skill_name": "SEO"
},
{
"is_primary": true,
"skill_name": "Web Analytics"
},
{
"is_primary": false,
"skill_name": "Code Review"
}
],
"jd_role": {
"display_name": "Frontend Engineer",
"rationale": null,
"role_aliases": [
"Frontend Developer",
"UI Engineer",
"Web Developer"
],
"role_archetype": "Engineering",
"slug": ""
},
"nano_parsed": {
"JD_type": "pass",
"about_company": null,
"certifications": [],
"company_name": null,
"ctc": null,
"domain": {
"primary": {
"aliases": [],
"domain": "Software \u0026 SaaS Products"
},
"secondary": null
},
"education": [
{
"level": "Bachelor\u0027s",
"qualification": "BTECH/BE/BSC - Engineering",
"raw": "Bachelor\u2019s or master degree in engineering",
"requirement": "required"
}
],
"experience": {
"max": null,
"min": 4,
"raw": "4+ Years"
},
"job_locations": [
{
"aliases": [],
"city": null,
"country": null,
"state": null,
"work_mode": "hybrid"
}
],
"role": "Frontend Engineer",
"role_aliases": [
"Frontend Developer",
"UI Engineer",
"Web Developer"
],
"role_archetype": "Engineering",
"roles_and_responsibilities": [
{
"bullet_count": 10,
"heading": "Key Responsibilities",
"heading_was_present": true,
"source_marker": {
"first_5_words": "Develop and maintain user-facing features",
"last_5_words": "frontend architecture discussions"
},
"text": "Develop and maintain user-facing features for web applications\nCollaborate with UI/UX designers to translate designs into responsive interfaces\nEnsure technical feasibility of UI/UX designs\nWrite reusable, scalable, and maintainable frontend code\nOptimize applications for maximum speed and scalability\nEnsure cross-browser compatibility and responsive behavior across devices\nWork closely with backend engineers for API integrations\nImprove SEO performance and web analytics implementation\nBreak down business requirements into smaller technical features and tasks\nParticipate in code reviews and frontend architecture discussions",
"word_count": 104
},
{
"bullet_count": 11,
"heading": "Requirements and Qualifications",
"heading_was_present": true,
"source_marker": {
"first_5_words": "\u2022 Bachelor\u2019s or master degree in",
"last_5_words": "understanding of cross-browser compatibility"
},
"text": "\u2022 Bachelor\u2019s or master degree in engineering\n\u2022 4+ years of work experience.\n\u2022 Proficient understanding of HTML, CSS, and Javascript\n\u2022 Proficient understanding of ReactJs or similar library\n\u2022 Good understanding of responsive web development\n\u2022 Good understanding of SEO and analytics\n\u2022 Ability to break the business problem into smaller features\n\u2022 Ability to access the technical feasibility of UI/UX designs\n\u2022 Build reusable code and libraries for future use\n\u2022 Optimize application for maximum speed and scalability\n\u2022 Proficient understanding of cross-browser compatibility",
"word_count": 92
}
],
"urls": []
},
"rejected": false,
"rejection_reason": null,
"run_id": "b6ac0e57-d015-451d-b79a-13b76a438874",
"stage3_signals": {
"alias_found": true,
"alias_match_roles": [
{
"display_name": "Frontend Engineer",
"matched_count": null,
"role_id": 7,
"score": 1.0,
"slug": "frontend-engineer",
"total_count": null
}
],
"kra_match_roles": [
{
"display_name": "Frontend Engineer",
"matched_count": null,
"role_id": 7,
"score": 0.4046,
"slug": "frontend-engineer",
"total_count": null
},
{
"display_name": "DevOps Engineer",
"matched_count": null,
"role_id": 10,
"score": 0.3508,
"slug": "devops-engineer",
"total_count": null
},
{
"display_name": "Data Engineer",
"matched_count": null,
"role_id": 2,
"score": 0.3472,
"slug": "data-engineer",
"total_count": null
},
{
"display_name": "Backend Engineer",
"matched_count": null,
"role_id": 1,
"score": 0.329,
"slug": "backend-engineer",
"total_count": null
},
{
"display_name": "AR/VR Engineer",
"matched_count": null,
"role_id": 8,
"score": 0.3173,
"slug": "ar-vr-engineer",
"total_count": null
}
],
"skill_match_roles": [
{
"display_name": "Frontend Engineer",
"matched_count": 3,
"role_id": 7,
"score": 0.4286,
"slug": "frontend-engineer",
"total_count": 7
},
{
"display_name": "Full Stack Engineer",
"matched_count": 3,
"role_id": 15,
"score": 0.4286,
"slug": "full-stack-engineer",
"total_count": 7
},
{
"display_name": "Hybrid Mobile Developer",
"matched_count": 2,
"role_id": 11,
"score": 0.2857,
"slug": "hybrid-mobile-developer",
"total_count": 7
},
{
"display_name": "Backend Engineer",
"matched_count": 1,
"role_id": 1,
"score": 0.1429,
"slug": "backend-engineer",
"total_count": 7
}
]
},
"stage4_decision": {
"alias_collision_detected": false,
"case": "A",
"chosen_role": {
"display_name": "Frontend Engineer",
"matched_count": null,
"role_id": 7,
"score": 1.0,
"slug": "frontend-engineer",
"total_count": null
},
"confidence": 0.4046,
"llm2_fired": false,
"llm2_reasoning": null,
"queued": false,
"reasoning": "Stage 1 title \u0027Frontend Engineer\u0027 (name match, sim 1.00); KRA agrees (0.40)"
},
"stage5_updates": {
"centroid_n_after": 14,
"centroid_updated": true,
"collision_log_id": null,
"new_kra_attached": null,
"new_skills_attached": [
{
"is_primary": true,
"queue_id": 1534,
"role_display_name": "Frontend Engineer",
"role_slug": "frontend-engineer",
"skill_name": "HTML",
"status": "pending"
},
{
"is_primary": true,
"queue_id": 1535,
"role_display_name": "Frontend Engineer",
"role_slug": "frontend-engineer",
"skill_name": "SEO",
"status": "pending"
},
{
"is_primary": true,
"queue_id": 1536,
"role_display_name": "Frontend Engineer",
"role_slug": "frontend-engineer",
"skill_name": "Web Analytics",
"status": "pending"
}
],
"queue_entry_id": null,
"v3_pipeline_triggered": false,
"v3_role_slug": null,
"v3_run_id": null
}
}
API 2 — extract-details
{
"alias_matches": [
{
"alias_persist_skipped_reason": "alias_text already exists for this canonical skill",
"alias_persisted": false,
"existing_alias_id": 1107,
"existing_alias_text": "CSS",
"input_term": "CSS",
"matched_canonical": {
"category_id": 4,
"display_name": "CSS",
"id": 623,
"is_also_category": false,
"is_extractable": true,
"skill_nature": "STANDARD",
"slug": "css",
"sub_category_id": 1068,
"typical_lifespan": "EVERGREEN",
"volatility": "STABLE"
},
"matched_via": "alias"
},
{
"alias_persist_skipped_reason": "alias_text already exists for this canonical skill",
"alias_persisted": false,
"existing_alias_id": 1028,
"existing_alias_text": "JavaScript",
"input_term": "JavaScript",
"matched_canonical": {
"category_id": 6,
"display_name": "JavaScript",
"id": 607,
"is_also_category": false,
"is_extractable": true,
"skill_nature": "LANGUAGE",
"slug": "javascript",
"sub_category_id": 96,
"typical_lifespan": "EVERGREEN",
"volatility": "STABLE"
},
"matched_via": "alias"
},
{
"alias_persist_skipped_reason": "alias_text already exists for this canonical skill",
"alias_persisted": false,
"existing_alias_id": 1047,
"existing_alias_text": "React",
"input_term": "React",
"matched_canonical": {
"category_id": 5,
"display_name": "React",
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"slug": "react",
"sub_category_id": 1072,
"typical_lifespan": "EVERGREEN",
"volatility": "STABLE"
},
"dimensions": [
{
"dimension": {
"difficulty_hint": "well_known",
"display_name": "UI Frameworks and Rendering",
"id": 115,
"rationale": "Component frameworks and rendering models used to build browser screens, reusable UI, and interactive client flows. This is a core cluster because frontend engineers spend much of their time composing and updating view hierarchies.",
"slug": "ui-frameworks-and-rendering",
"source": "db"
},
"input_skill": "React",
"llm_role": null,
"roles_from_db": [
{
"display_name": "Frontend Engineer",
"id": 7,
"rationale": null,
"role_archetype": null,
"slug": "frontend-engineer",
"source": "db"
},
{
"display_name": "Full Stack Engineer",
"id": 15,
"rationale": null,
"role_archetype": null,
"slug": "full-stack-engineer",
"source": "db"
},
{
"display_name": "Hybrid Mobile Developer",
"id": 11,
"rationale": null,
"role_archetype": null,
"slug": "hybrid-mobile-developer",
"source": "db"
}
]
}
],
"input_skill": "React",
"matched_via": "alias",
"new_alias_persisted": false,
"new_alias_text": null,
"new_skill_meta": null,
"source_tag": "db",
"was_in_llm_skills": true
},
{
"aliases_in_db": [],
"canonical": null,
"dimensions": [
{
"dimension": {
"difficulty_hint": "well_known",
"display_name": "React Frontend Development",
"id": 96,
"rationale": "Building interactive web user interfaces with React.js, including component composition, state management, hooks, and rendering patterns. React.js belongs here because it is a core library for client-side UI development in modern web applications.",
"slug": "d_init_01",
"source": "db"
},
"input_skill": "SEO",
"llm_role": null,
"roles_from_db": []
}
],
"input_skill": "SEO",
"matched_via": null,
"new_alias_persisted": false,
"new_alias_text": null,
"new_skill_meta": {
"derived": {
"category": "Domain",
"skill_nature": "CONCEPT",
"sub_category": "search_engine_optimization",
"typical_lifespan": "EVERGREEN",
"version_strategy": "NOT_APPLICABLE",
"volatility": "STABLE"
},
"enrichment": {
"ambiguity": {
"ambiguity_flag": false,
"confused_with": [],
"reasoning": "SEO is a specific, widely used term for search engine optimization; unlikely to be confused with another catalog skill."
},
"context_keywords": {
"context_keywords": [
"keyword research",
"backlinking",
"on-page SEO",
"off-page SEO",
"meta tags",
"SERP",
"Google Analytics",
"site audit",
"content optimization",
"SEO tools",
"rank tracking",
"schema markup",
"local SEO",
"algorithm updates",
"white hat SEO",
"black hat SEO"
]
},
"maturity": {
"confidence": 0.95,
"maturity": "well_known",
"reasoning": "SEO appears in large volumes of marketing, content, and growth job descriptions across industries; Google Search Central and major CMS vendors continue to publish active guidance, indicating broad ongoing demand."
},
"skill_id": "seo",
"vendor_license": {
"confidence": 0.9,
"license": null,
"vendor": null,
"year_introduced": null
},
"versioning": {
"current_version": null,
"version_aliases": {},
"versioned": false
}
},
"keep_log": [],
"locked_dimensions": [
{
"description": "Practices for improving a website\u0027s visibility in search engine results. This includes technical, on-page, and content signals that help pages get crawled, indexed, and ranked, which is why SEO fits here.",
"exemplar_skills": [
"SEO",
"keyword research",
"on-page SEO",
"technical SEO",
"internal linking",
"structured data",
"XML sitemaps"
],
"in_scope": "SEO, keyword research, on-page optimization, meta titles and descriptions, internal linking, crawlability, indexability, structured data, canonical tags, XML sitemaps, robots.txt, Core Web Vitals",
"name": "Search Engine Optimization",
"out_of_scope": "paid search advertising, social media marketing, email marketing, conversion rate optimization, analytics implementation beyond SEO reporting, content strategy not tied to search ranking",
"overlap_flags": [
{
"reason": "URL structure, redirects, and navigation can affect crawl paths, but the SEO dimension owns search visibility outcomes.",
"with_dim_id": "client-routing-and-navigation",
"with_dim_name": null,
"with_role": "Frontend Engineer"
},
{
"reason": "Page performance and renderability can influence SEO, but styling itself is not the core optimization discipline.",
"with_dim_id": "css-architecture-and-styling",
"with_dim_name": null,
"with_role": "Frontend Engineer, Full Stack Engineer"
}
],
"tentative_id": "d_init_01"
}
],
"merge_log": [],
"placed": {
"name": "SEO",
"placement_confidence": 0.92,
"primary_dimension": "d_init_01",
"reasoning": "Deterministic JD placement: locked_dimensions has 1 dimension(s) from skill-driven dimension generation after reconciliation; primary_dimension is the first locked dim.",
"secondary_dimensions": [],
"skill_id": "seo"
},
"relationships": {
"child_skills": [],
"parent_skills": [],
"related_to": [
"a-b-testing",
"evaluation",
"pagination",
"mobile-performance-optimisation",
"hybrid-retrieval",
"logging",
"graphql-queries",
"api"
],
"requires": [],
"skill_id": "seo",
"suppress_on_match": []
},
"skill_id": "seo",
"split_log": [],
"typed": {
"alternatives_considered": [],
"confidence": 0.98,
"name": "SEO",
"reasoning": "SEO is a vertical body of knowledge and practice about improving search visibility, so by the Domain rule it is not a tool, methodology, or concept.",
"skill_id": "seo",
"subtype": "search_engine_optimization",
"type": "Domain"
},
"warnings": []
},
"source_tag": "llm",
"was_in_llm_skills": true
},
{
"aliases_in_db": [],
"canonical": null,
"dimensions": [
{
"dimension": {
"difficulty_hint": "well_known",
"display_name": "React Frontend Development",
"id": 96,
"rationale": "Building interactive web user interfaces with React.js, including component composition, state management, hooks, and rendering patterns. React.js belongs here because it is a core library for client-side UI development in modern web applications.",
"slug": "d_init_01",
"source": "db"
},
"input_skill": "Web Analytics",
"llm_role": null,
"roles_from_db": []
}
],
"input_skill": "Web Analytics",
"matched_via": null,
"new_alias_persisted": false,
"new_alias_text": null,
"new_skill_meta": {
"derived": {
"category": "Domain",
"skill_nature": "CONCEPT",
"sub_category": "web_analytics",
"typical_lifespan": "EVERGREEN",
"version_strategy": "NOT_APPLICABLE",
"volatility": "STABLE"
},
"enrichment": {
"ambiguity": {
"ambiguity_flag": false,
"confused_with": [],
"reasoning": "\u201cWeb Analytics\u201d is a specific domain focused on measuring website/app performance; it\u2019s unlikely to be confused with other distinct skills in typical JDs."
},
"context_keywords": {
"context_keywords": [
"Google Analytics",
"A/B testing",
"conversion rate",
"data visualization",
"user behavior",
"tracking pixels",
"heatmaps",
"event tracking",
"SEO metrics",
"UTM parameters",
"dashboard reporting",
"funnel analysis",
"customer journey",
"web traffic",
"data-driven decisions"
]
},
"maturity": {
"confidence": 0.93,
"maturity": "well_known",
"reasoning": "Web analytics is a common requirement in marketing, product, and e-commerce JDs, with tools like GA4, Adobe Analytics, and Tag Manager widely listed across roles."
},
"skill_id": "web-analytics",
"vendor_license": {
"confidence": 0.8,
"license": null,
"vendor": null,
"year_introduced": null
},
"versioning": {
"current_version": null,
"version_aliases": {},
"versioned": false
}
},
"keep_log": [],
"locked_dimensions": [
{
"description": "Implementation of tracking on websites and web apps to measure user behavior, traffic, and conversion events. This fits Web Analytics because frontend engineers often add and maintain the event tags, data layer, and page instrumentation that feed analytics platforms.",
"exemplar_skills": [
"Web Analytics",
"Google Analytics 4",
"Adobe Analytics",
"Tag Manager",
"Event Tracking",
"Conversion Tracking",
"Data Layer Design"
],
"in_scope": "Web Analytics, pageview tracking, event tracking, dataLayer design, tag manager setup, conversion tracking, UTM capture, funnel instrumentation, analytics SDK integration, consent-aware tracking",
"name": "Web Analytics Instrumentation",
"out_of_scope": "Server-side BI reporting, data warehouse modeling, SEO strategy, ad campaign management, product experimentation analysis, which belong to analytics, marketing, or data engineering dimensions",
"overlap_flags": [
{
"reason": "Analytics events are often sent through client-side API calls, but the purpose is measurement rather than general data fetching.",
"with_dim_id": "api-integration-and-data-fetching",
"with_dim_name": null,
"with_role": "Frontend Engineer, Full Stack Engineer"
},
{
"reason": "Analytics instrumentation is frequently coordinated with staged releases and experiments, but the core skill is tracking, not rollout control.",
"with_dim_id": "feature-flags-and-release-control",
"with_dim_name": null,
"with_role": "Full Stack Engineer"
}
],
"tentative_id": "d_init_01"
}
],
"merge_log": [],
"placed": {
"name": "Web Analytics",
"placement_confidence": 0.92,
"primary_dimension": "d_init_01",
"reasoning": "Deterministic JD placement: locked_dimensions has 1 dimension(s) from skill-driven dimension generation after reconciliation; primary_dimension is the first locked dim.",
"secondary_dimensions": [],
"skill_id": "web-analytics"
},
"relationships": {
"child_skills": [],
"parent_skills": [],
"related_to": [
"metrics",
"logging",
"observability",
"crash-analytics",
"a-b-testing",
"evaluation",
"api-integration",
"api-security"
],
"requires": [],
"skill_id": "web-analytics",
"suppress_on_match": []
},
"skill_id": "web-analytics",
"split_log": [],
"typed": {
"alternatives_considered": [],
"confidence": 0.93,
"name": "Web Analytics",
"reasoning": "Web Analytics is a vertical/problem-space body of knowledge about measuring and analyzing website traffic and user behavior, so it fits the Domain type rather than a tool, framework, or methodology.",
"skill_id": "web-analytics",
"subtype": "web_analytics",
"type": "Domain"
},
"warnings": []
},
"source_tag": "llm",
"was_in_llm_skills": true
},
{
"aliases_in_db": [
{
"alias_text": "Code Review",
"alias_type": "CANONICAL",
"id": 864,
"is_primary": false,
"match_strategy": "CASE_INSENSITIVE"
}
],
"canonical": {
"category_id": 58,
"display_name": "Code Review",
"id": 516,
"is_also_category": false,
"is_extractable": true,
"skill_nature": "PRACTICE",
"slug": "code-review",
"sub_category_id": 364,
"typical_lifespan": "EVERGREEN",
"volatility": "STABLE"
},
"dimensions": [
{
"dimension": {
"difficulty_hint": "well_known",
"display_name": "React Frontend Development",
"id": 96,
"rationale": "Building interactive web user interfaces with React.js, including component composition, state management, hooks, and rendering patterns. React.js belongs here because it is a core library for client-side UI development in modern web applications.",
"slug": "d_init_01",
"source": "db"
},
"input_skill": "Code Review",
"llm_role": null,
"roles_from_db": []
}
],
"input_skill": "Code Review",
"matched_via": "alias",
"new_alias_persisted": false,
"new_alias_text": null,
"new_skill_meta": null,
"source_tag": "db",
"was_in_llm_skills": true
}
],
"unmatched_skills": [
"HTML",
"SEO",
"Web Analytics"
]
}
API 3 — final-role-output
{
"chosen_role": {
"display_name": "Frontend Engineer",
"id": 7,
"rationale": "Primary skills strongly indicate a role focused on web development with HTML, CSS, JavaScript, React, SEO, and Web Analytics.",
"role_archetype": null,
"slug": "frontend-engineer",
"source": "db"
},
"chosen_role_resolution": "in_db",
"final_input_skills": [
{
"skill": "HTML",
"tag": "new"
},
{
"skill": "CSS",
"tag": "in_db"
},
{
"skill": "JavaScript",
"tag": "in_db"
},
{
"skill": "React",
"tag": "in_db"
},
{
"skill": "SEO",
"tag": "new"
},
{
"skill": "Web Analytics",
"tag": "new"
},
{
"skill": "Code Review",
"tag": "in_db"
}
],
"llm_cost_api1_usd": null,
"llm_cost_api2_usd": null,
"llm_cost_api3_usd": null,
"llm_cost_total_usd": null,
"persistence": {
"items": [
{
"chosen_role_id": 7,
"dimension": {
"difficulty_hint": "well_known",
"display_name": "CSS Architecture and Styling",
"id": 117,
"rationale": "Styling systems and layout techniques used to create responsive, maintainable visual presentation in the browser. Frontend engineers need this to translate design intent into consistent interfaces.",
"slug": "css-architecture-and-styling",
"source": "db"
},
"dimension_id": 117,
"input_skill": "CSS",
"llm_role": null,
"matched_chosen_role": true,
"outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension saved",
"role_dimension_saved": true,
"roles_from_db": [
{
"display_name": "Frontend Engineer",
"id": 7,
"rationale": null,
"role_archetype": null,
"slug": "frontend-engineer",
"source": "db"
},
{
"display_name": "Full Stack Engineer",
"id": 15,
"rationale": null,
"role_archetype": null,
"slug": "full-stack-engineer",
"source": "db"
}
],
"skill_dimension_saved": true,
"skill_id": 623,
"skill_tag": "in_db",
"skipped_reason": null
},
{
"chosen_role_id": 7,
"dimension": {
"difficulty_hint": "well_known",
"display_name": "Cross-Platform App Languages",
"id": 167,
"rationale": "Languages used to implement shared mobile features across iOS and Android from a common codebase. This is the primary coding surface for hybrid app logic, UI behavior, and platform-specific branching.",
"slug": "cross-platform-app-languages",
"source": "db"
},
"dimension_id": 167,
"input_skill": "JavaScript",
"llm_role": null,
"matched_chosen_role": false,
"outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
"role_dimension_saved": false,
"roles_from_db": [
{
"display_name": "Hybrid Mobile Developer",
"id": 11,
"rationale": null,
"role_archetype": null,
"slug": "hybrid-mobile-developer",
"source": "db"
}
],
"skill_dimension_saved": true,
"skill_id": 607,
"skill_tag": "in_db",
"skipped_reason": null
},
{
"chosen_role_id": 7,
"dimension": {
"difficulty_hint": "well_known",
"display_name": "JavaScript and TypeScript",
"id": 114,
"rationale": "Primary implementation languages for browser client code, UI logic, and shared frontend utilities. These languages are the main coding surface for building interactive web experiences in this role.",
"slug": "javascript-and-typescript",
"source": "db"
},
"dimension_id": 114,
"input_skill": "JavaScript",
"llm_role": null,
"matched_chosen_role": true,
"outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension saved",
"role_dimension_saved": true,
"roles_from_db": [
{
"display_name": "Frontend Engineer",
"id": 7,
"rationale": null,
"role_archetype": null,
"slug": "frontend-engineer",
"source": "db"
}
],
"skill_dimension_saved": true,
"skill_id": 607,
"skill_tag": "in_db",
"skipped_reason": null
},
{
"chosen_role_id": 7,
"dimension": {
"difficulty_hint": "well_known",
"display_name": "Programming Languages",
"id": 1,
"rationale": "Primary implementation languages used to build client and server feature code. Full stack engineers need enough fluency to move across layers and implement product behavior end to end.",
"slug": "programming-languages",
"source": "db"
},
"dimension_id": 1,
"input_skill": "JavaScript",
"llm_role": null,
"matched_chosen_role": false,
"outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
"role_dimension_saved": false,
"roles_from_db": [
{
"display_name": "Backend Engineer",
"id": 1,
"rationale": null,
"role_archetype": "A Backend Engineer designs, builds, and maintains the server-side logic and data handling that power applications and services. They focus on implementing reliable business functionality, integrating with other systems, and ensuring the backend is scalable, maintainable, and observable.",
"slug": "backend-engineer",
"source": "db"
},
{
"display_name": "Full Stack Engineer",
"id": 15,
"rationale": null,
"role_archetype": null,
"slug": "full-stack-engineer",
"source": "db"
}
],
"skill_dimension_saved": true,
"skill_id": 607,
"skill_tag": "in_db",
"skipped_reason": null
},
{
"chosen_role_id": 7,
"dimension": {
"difficulty_hint": "well_known",
"display_name": "UI Frameworks and Rendering",
"id": 115,
"rationale": "Component frameworks and rendering models used to build browser screens, reusable UI, and interactive client flows. This is a core cluster because frontend engineers spend much of their time composing and updating view hierarchies.",
"slug": "ui-frameworks-and-rendering",
"source": "db"
},
"dimension_id": 115,
"input_skill": "React",
"llm_role": null,
"matched_chosen_role": true,
"outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension saved",
"role_dimension_saved": true,
"roles_from_db": [
{
"display_name": "Frontend Engineer",
"id": 7,
"rationale": null,
"role_archetype": null,
"slug": "frontend-engineer",
"source": "db"
},
{
"display_name": "Full Stack Engineer",
"id": 15,
"rationale": null,
"role_archetype": null,
"slug": "full-stack-engineer",
"source": "db"
},
{
"display_name": "Hybrid Mobile Developer",
"id": 11,
"rationale": null,
"role_archetype": null,
"slug": "hybrid-mobile-developer",
"source": "db"
}
],
"skill_dimension_saved": true,
"skill_id": 610,
"skill_tag": "in_db",
"skipped_reason": null
},
{
"chosen_role_id": 7,
"dimension": {
"difficulty_hint": "well_known",
"display_name": "React Frontend Development",
"id": 96,
"rationale": "Building interactive web user interfaces with React.js, including component composition, state management, hooks, and rendering patterns. React.js belongs here because it is a core library for client-side UI development in modern web applications.",
"slug": "d_init_01",
"source": "db"
},
"dimension_id": 96,
"input_skill": "Code Review",
"llm_role": null,
"matched_chosen_role": false,
"outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
"role_dimension_saved": false,
"roles_from_db": [],
"skill_dimension_saved": true,
"skill_id": 516,
"skill_tag": "in_db",
"skipped_reason": null
},
{
"chosen_role_id": 7,
"dimension": {
"difficulty_hint": "well_known",
"display_name": "React Frontend Development",
"id": 96,
"rationale": "Building interactive web user interfaces with React.js, including component composition, state management, hooks, and rendering patterns. React.js belongs here because it is a core library for client-side UI development in modern web applications.",
"slug": "d_init_01",
"source": "db"
},
"dimension_id": 96,
"input_skill": "HTML",
"llm_role": null,
"matched_chosen_role": false,
"outcome_line": "New skill saved \u00b7 Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
"role_dimension_saved": false,
"roles_from_db": [],
"skill_dimension_saved": true,
"skill_id": 1657,
"skill_tag": "in_db",
"skipped_reason": null
},
{
"chosen_role_id": 7,
"dimension": {
"difficulty_hint": "well_known",
"display_name": "React Frontend Development",
"id": 96,
"rationale": "Building interactive web user interfaces with React.js, including component composition, state management, hooks, and rendering patterns. React.js belongs here because it is a core library for client-side UI development in modern web applications.",
"slug": "d_init_01",
"source": "db"
},
"dimension_id": 96,
"input_skill": "SEO",
"llm_role": null,
"matched_chosen_role": false,
"outcome_line": "New skill saved \u00b7 Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
"role_dimension_saved": false,
"roles_from_db": [],
"skill_dimension_saved": true,
"skill_id": 1658,
"skill_tag": "in_db",
"skipped_reason": null
},
{
"chosen_role_id": 7,
"dimension": {
"difficulty_hint": "well_known",
"display_name": "React Frontend Development",
"id": 96,
"rationale": "Building interactive web user interfaces with React.js, including component composition, state management, hooks, and rendering patterns. React.js belongs here because it is a core library for client-side UI development in modern web applications.",
"slug": "d_init_01",
"source": "db"
},
"dimension_id": 96,
"input_skill": "Web Analytics",
"llm_role": null,
"matched_chosen_role": false,
"outcome_line": "New skill saved \u00b7 Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
"role_dimension_saved": false,
"roles_from_db": [],
"skill_dimension_saved": true,
"skill_id": 1659,
"skill_tag": "in_db",
"skipped_reason": null
}
],
"new_skills_created": 3,
"role_dimension_saved": 0,
"skill_dimension_saved": 3,
"skipped": 0
},
"planner_output": null,
"run_id": "b6ac0e57-d015-451d-b79a-13b76a438874"
}
LLM Calls
Every model call made for this run, in pipeline order. Click a card to see the model's response.