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Janie Logo

Full Stack Engineer

Janie

Salary not specified
Oct 7, 2025
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Build secure, performant web applications with a modern stack centered on Next.js, Supabase (PostgreSQL), and Cloudflare Workers.

Requirements

  • Strong TypeScript, React/Next.js skills; familiarity with SSR/ISR, data fetching patterns, and performance profiling.
  • Practical experience with Supabase or similar BaaS (PostgreSQL, auth, storage, migrations).
  • Hands-on with serverless/edge runtimes (e.g., Cloudflare Workers) and RESTful API design.
  • Solid grasp of authentication/authorization, data modeling, and secure coding practices.
  • Proficiency with Git and modern DX: package managers, linters/formatters, testing, and CI/CD.
  • Tailwind CSS expertise for building responsive, accessible, and maintainable UIs.
  • LLM Agent Frameworks: familiarity with agentic patterns and tools (e.g., MCP, function/tool calling, Supabase Vector/pgvector, retrieval strategies, prompt/runtime safety).

Responsibilities

  • Build features across the stack using Next.js (App Router, RSC, route handlers), TypeScript, and Tailwind CSS.
  • Design and optimize PostgreSQL schemas; implement Supabase auth, RLS policies, and efficient queries.
  • Develop and deploy serverless/edge logic on Cloudflare Workers (and related services like KV, Durable Objects, Queues, R2 where appropriate).
  • Create robust APIs and integrations; apply caching, CDN, and edge strategies for latency and scale.
  • Implement real-time interactions (Supabase Realtime/WebSockets) and, where applicable, WebRTC or voice API–powered features.
  • Integrate LLM agent capabilities (tool use, retrieval, workflows) where they materially improve UX.
  • Uphold security-by-design and privacy best practices; contribute to HIPAA/PHI-aware development in a regulated environment.

Other

  • Hybrid work model
  • Clear communication, ownership mindset, and collaboration in a hybrid work model.
  • Applicants must be legally authorized to work in the United States.
  • At this time, we are unable to sponsor employment visas or consider candidates requiring visa sponsorship now or in the future.
  • Experience in health tech and interest in LLM agents and real-time/voice experiences is a big plus.