Senior Full Stack Developer

About the role

Fountain Forward is seeking a Senior Full‑Stack Developer to lead the design, build, and launch of its client portal while mentoring a team of junior developers. This hands‑on role combines coding, architecture decisions, and technical leadership.

Key responsibilities

• Own end‑to‑end delivery of the client portal, from architecture to production.
• Lead, mentor, and manage a team of four junior developers through code reviews, pairing, and planning.
• Design scalable backend services in Python (FastAPI) and a performant Next.js (TypeScript) frontend.
• Architect data flows across Supabase (Postgres), Redis, and BigQuery, ensuring reliability and cost efficiency.
• Set engineering standards for testing, CI/CD, code quality, observability, and security.
• Collaborate with product, data, and leadership to translate business goals into technical roadmaps.

Required profile

• 5+ years building production web applications, with at least 2 years in a senior or lead role.
• Proven track record of mentoring junior engineers and leading small teams.
• Comfort with cloud infrastructure, CI/CD pipelines, and production monitoring.

Required skills

• Next.js and TypeScript (App Router, server components, modern React patterns).
• Python and FastAPI, including async programming and REST/RPC API design.
• Postgres (Supabase a plus), Redis, and BigQuery.
• Experience with RPC frameworks such as gRPC, tRPC, or Protocol Buffers.
• CI/CD, testing, observability, and security best practices.

What we offer

• Technical ownership of a flagship product from day one.
• Clear leadership path with a team to grow and develop.
• Remote‑first culture with flexible schedule and unlimited paid time off.
• Quarterly performance bonuses and professional development opportunities.
• Health & fitness reimbursement, parental leave, and paid referral program.