Senior Fullstack Engineer - Flutter & Typescript

About the role

We are looking for a Senior Fullstack Engineer to join the Product & Engineering team of a fast‑growing AI‑powered social platform. This remote role focuses on building features that help people connect and collaborate in real life.

Key responsibilities

• Design, develop, and ship features across a Node.js + TypeScript backend, React/Next.js web app, and Flutter mobile apps.
• Collaborate with product and design teams throughout the development lifecycle, from scope to launch.
• Write technical implementation plans, product specifications, and tracking plans.
• Implement real‑time availability, high‑demand bookings, location‑aware functionality, and invite/trust systems.
• Deploy features behind flags and holdout groups, measuring impact on uptime, latency, retention and engagement.
• Own features post‑launch, monitor performance, and iterate to meet targets.

Required profile

• 5+ years of production software experience with end‑to‑end ownership of features.
• Strong Node.js and TypeScript backend expertise.
• Deep knowledge of PostgreSQL and Redis.
• Production experience with React or Next.js.
• Experience shipping mobile applications, preferably with Flutter.
• Understanding of data integrity, transactions, locking, race conditions and load consistency.
• Experience with real‑time systems (WebSockets, SSE, pub/sub) and data instrumentation for experiments.

Required skills

• Node.js
• TypeScript
• PostgreSQL
• Redis
• React
• Next.js
• Flutter
• WebSockets / SSE / pub‑sub
• Feature flagging and A/B testing