Oren Sayag
Fullstack Engineer · Web · AI / LLM Tooling
№ 01Summary
Fullstack engineer with five years of client work — shipping real software across many industries, learning what holds up under live users. Strongest on the TS / React / Node / Postgres axis; comfortable taking AI / LLM features from demo to production. Freelancing since 2026 — open to projects, full-time roles, and partnerships.
№ 02Skills
LanguagesTypeScript · JavaScript · SQL · Python
FrontendReact · Next.js · React Native · Vite · Tailwind · shadcn
BackendNode · Hono · Express · Drizzle · Prisma
DataPostgres · Redis · pgvector · Elasticsearch
AI / LLMOpenAI · Anthropic · Vercel AI SDK · RAG · evals · structured outputs
Cloud / DevOpsAWS · Vercel · Docker · GitHub Actions
PracticeTesting · profiling · code review · clean DB schemas
№ 03Languages
EnglishFluent
HebrewNative
№ 04Open to
Freelance projectsFull-time rolesPartnershipsRemoteTel Aviv / hybrid
№ 05Experience
Freelance Engineer
Solo client work · web apps, AI tooling, product engineering
- Web apps end-to-end on a TS / React / Node / Postgres stack — discovery through shipped product.
- AI / LLM feature work for clients: prompt pipelines, RAG, evals, structured outputs, cost & observability.
- Rescue work on inherited codebases — tracing production bugs, performance audits, pre-launch cleanups.
- Tech consulting: architecture reviews, stack decisions, hire-or-build calls.
Fullstack Engineer
tech.co.il · multi-industry consulting / projects house
- Five years shipping software for clients across many industries — internal tools, customer-facing products, integrations, data pipelines.
- Owned features end-to-end: requirements with stakeholders → design → ship → iterate under real load.
- Worked across the stack as the project demanded — TS & React on the frontend, Node services on the backend, Postgres schemas that actually held up.
- Brought in early on AI / LLM work as that capability matured — from POCs into production-grade features.
- Code-reviewed and mentored juniors; the engineer teammates flagged when the brief was rough or the database design needed a second look.
№ 06Selected projects
Music Practice
music-practiceA focused practice companion for disciplined musicians — plan sessions, record audio, track progress over time.
ReactHonoDrizzlePostgres
.orensayag.com ↗
Article Quiz
article-quizWeb app that turns any article into a comprehension quiz with LLMs — paste a URL, get a check on whether you actually read the thing.
shadcnViteHonoPostgresLLM
.orensayag.com ↗
№ 07Education
Fullstack Web Developer
John Bryce College · 335 hours · top student
OREN SAYAG · CV · 2026● Open to workPage 1 of 1