Freelance Frontend Engineers in Los AngelesFreelance Frontend Engineers in Los Angeles
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Aurelien GERIER's avatar
Aurelien GERIER
proLos Angeles, USA
Fullstack Engineer | 14+ yrs Shipping React,Next.js,Node,AI
$50k+
Earned
5x
Hired
4.9
Rating
82
Followers
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Fullstack Engineer | 14+ yrs Shipping React,Next.js,Node,AI
Cover image for Scalable Digital Platform for Cognitive Testing
Scalable Digital Platform for Cognitive Testing
0
26
Cover image for HumanData Web Application
HumanData Web Application
0
26
Cover image for Braidio
Braidio
1
51
Cover image for Led delivery of a cloud-native
Led delivery of a cloud-native K-12 student wellness platform that helps counselors monitor wellbeing, surface at-risk students, and act early—balancing product velocity with FERPA/COPPA-aware design and multi-tenant isolation (API RBAC, PostgreSQL RLS, district-scoped analytics). → Owned technical direction and delivery rhythm across a TypeScript monorepo (pnpm/Turbo): backend API, web app, shared packages, DB migrations, CI/CD gates, and staged deploys to GCP (e.g. Cloud Run), aligning engineering work with roadmap and release risk. → Orchestrated an AI assistant for counselors on Google Vertex AI (Gemini): system prompts, safety settings for K-12, function-calling tool design, multi-round tool loops, and strict separation so UI widgets render from verified tool results—not model hallucinations—with tracing/feedback hooks (e.g. Langfuse) for quality and auditability. → Drove access-control and compliance posture for sensitive student data: role/permission middleware, tenant-scoped queries, and defense-in-depth database policies—documentation and evidence suitable for enterprise security reviews (e.g. SOC 2–style narratives). → Partnered on product and program management: phased feature rollout, PR/branch discipline, and clear ownership of scope vs. risk so pilot schools could onboard without compromising data boundaries. → Shaped integrations and platform boundaries: Firebase auth, Neon PostgreSQL + Drizzle ORM, real-time patterns, BigQuery analytics isolation, and operational practices (testing, lint, type-check) that keep the stack maintainable at scale. → Established a disciplined, AI-accelerated delivery model—not ad-hoc prompting: Cursor rules and Claude skills/agents for repeatable workflows; Husky + lint/type-check/test gates; GitHub Actions CI/CD; Cursor Cloud Agents for automated PR review; and daily monitoring of E2E, coverage, and critical issues—owning AI-orchestrated implementation while enforcing accuracy, consistency, and observability
0
37
Frontend Engineer(3)
OJ Smith's avatar
OJ Smith
proLos Angeles, USA
AI Product Manager & Technical Project Lead (CSM)
$5k+
Earned
1x
Hired
5.0
Rating
9
Followers
AI Product Manager & Technical Project Lead (CSM)
Cover image for OJ Smith - React / Next.js Headless Wordpress Application
OJ Smith - React / Next.js Headless Wordpress Application
0
9
Cover image for Caribou Relaunch
Caribou Relaunch
0
15
Cover image for Organized.Capital
Organized.Capital
0
12
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IncPros
0
12
Frontend Engineer(8)
Mariya Diminsky's avatar
Mariya Diminsky
Los Angeles, USA
Senior Frontend Engineer | Software Engineer | 9+ years
Senior Frontend Engineer | Software Engineer | 9+ years
Cover image for Creative Fabrica - Frontend Engineer
Creative Fabrica - Frontend Engineer
1
16
Cover image for Cooltrax - Frontend + UX Engineer
Cooltrax - Frontend + UX Engineer
1
35
Cover image for Zapier - Frontend Engineer
Zapier - Frontend Engineer
0
26
Cover image for Toddler Word Game
Toddler Word Game
0
19
Frontend Engineer(8)
Andrew Kim's avatar
Andrew Kim
Los Angeles, USA
Expert Web Developer & UI/UX Designer
Expert Web Developer & UI/UX Designer
Cover image for React development (next.js, various)
React development (next.js, various)
0
10
Cover image for Shopify websites (various)
Shopify websites (various)
0
25
Cover image for UI/UX Design (various)
UI/UX Design (various)
0
7
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Frontend Engineer(2)
Michael Malone's avatar
Michael Malone
Los Angeles, USA
🚀 React.js & TypeScript Web Expert 🌐
🚀 React.js & TypeScript Web Expert 🌐
Cover image for Tongal Portfolio Page
Tongal Portfolio Page
0
1
Cover image for Tongal BackLot
Tongal BackLot
0
0
Cover image for Lego World Builder
Lego World Builder
0
0
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Frontend Engineer(3)
Jeff Lu's avatar
Jeff Lu
Los Angeles, USA
Designer and developer of products that spark joy at scale!
Designer and developer of products that spark joy at scale!
Cover image for IDONTMIND Mobile App
IDONTMIND Mobile App
0
12
Cover image for TransCanWork Website
TransCanWork Website
0
4
Cover image for Bruinwalk Website
Bruinwalk Website
0
3
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Frontend Engineer(2)
Daniel Saunders's avatar
Daniel Saunders
Los Angeles, USA
Hand-crafting beautiful, resilient websites
Hand-crafting beautiful, resilient websites
Cover image for Corporate Landing Page Web Design & Development
Corporate Landing Page Web Design & Development
1
7
Cover image for Yoga Practitioner Web Design & Development
Yoga Practitioner Web Design & Development
0
3
Cover image for Marketing Deck Gallery
Marketing Deck Gallery
0
3
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Frontend Engineer(1)