Fullstack Developer

Role & responsibilities

• Design, develop, and support scalable front-end and back-end applications.
• Build REST APIs and async services using FastAPI with typed, tested, production-quality code.
• Develop responsive, performant web interfaces in Next.js and React.
• Design database schemas, write efficient queries, and manage migrations in PostgreSQL.
• Implement real-time features using WebSockets or server-sent events.
• Integrate LLM-powered features such as RAG pipelines, summarization, and agentic workflows.
• Implement authentication, authorization, payments, and notification flows.
• Ensure application security, performance, reliability, and code quality.
• Contribute to Agile delivery, code reviews, and CI/CD practices.

Preferred candidate profile

Experience: 5+ years of full stack development with production ownership on both sides of the

stack.

• Backend: Python, FastAPI (or Flask/Django with willingness to go deep on FastAPI), Pydantic,

SQLAlchemy, async programming.

• Frontend: React, Next.js (App Router), TypeScript, Tailwind CSS, modern state and data-fetching

patterns.

• Databases: PostgreSQL (schema design, indexing, query optimization), Redis; exposure to time-series or

analytical stores is a plus.

• AI/GenAI: OpenAI, Claude, or Gemini APIs; RAG, prompt engineering, function calling, vector search;

LangChain or LangGraph exposure.

• Cloud & DevOps: AWS, Docker, GitHub Actions, CI/CD pipelines.

Preferred Qualifications

• Experience building AI-enabled product features in production.
• Event-driven architectures, message queues, and background job processing.
• Prior startup experience; comfortable owning half-defined problems and shipping working demos fast.
• Strong communication and collaboration skills, and a personal interest in health-tech or longevity