Eliyahu Kriel elik56a

Hi, I'm Eliyahu Kriel 👋

Full Stack & AI Engineer · I love building tools for developers

🛠️ I love building tools for developers: libraries, converters and dev tooling that remove friction from everyday work.
🤖 AI engineering: RAG pipelines, tool-calling agents, evals, guardrails and LLM cost control, shipped to production.
🌐 Full stack across TypeScript, Python and Java, from React / React Native UIs to APIs, workers and cloud infra.
📱 Cross-platform mobile with React Native and Expo, including open-source components on npm.
🧪 Quality first: strict types, unit to E2E tests, CI and observability on everything I ship.

🧰 DevConverter A growing collection of developer tools and converters: data formats, encoding / decoding and everyday dev utilities, all in one fast web app. `Next.js` `TypeScript` `Tailwind` `Radix UI` 🌐 Live · 📦 Repo	🎡 React Native Pickers Beautiful, fully customizable pickers for React Native: wheel, date, time, date-time, select and emoji. 100% JavaScript, zero native code. Works with Expo Go, bare RN and RN Web. `React Native` `Expo` `TypeScript` `npm` 📖 Docs · 📦 npm · 💻 Repo
🤿 Portfolio Chat Agent My portfolio, where visitors ask an AI agent about me and watch every step it takes: guardrails, searches, model calls, tokens and cost. Hybrid RAG, a bounded tool-calling agent, spend caps and an eval suite in CI. `Python` `FastAPI` `Pydantic AI` `pgvector` `AWS Lambda` `Terraform` `Langfuse` 🌐 Live · 💻 Repo	🏛️ ArcHorizon.ai AI architectural design platform that turns text descriptions and rough sketches into editable 2D/3D CAD blueprints, with a conversational AI architect and DXF / PDF / SVG export. `TypeScript` `Gemini` `Three.js` `React` 💻 Repo
🔍 NeatPeek Design QA SaaS that checks Figma frames against brand guidelines with AI and leaves its feedback as Figma comments. `Next.js` `Prisma` `PostgreSQL` `Figma API` `AI`	🧠 More AI work AI campaign manager (briefs to launch), a DSPM scanner for sensitive data in BigQuery, S3 and Snowflake, and identity management for non-human / AI agents. `Gemini` `spaCy` `Python` `Java`

AI Engineering	Frontend & Mobile	Backend	Cloud & Tooling
RAG, pgvector, BM25	React, Next.js	Python (FastAPI)	AWS (Lambda, S3, DynamoDB)
Tool-calling agents	React Native, Expo	Java	Terraform
Pydantic AI, Vercel AI SDK	TypeScript	Node.js	Docker, GitHub Actions
Gemini, Claude	Tailwind, shadcn/ui	PostgreSQL, Redis, Prisma	Vercel
Evals, guardrails, Langfuse	Three.js	REST, SSE, GraphQL	OpenTelemetry