Senior Developer

About the job

Role Type: Full-Time / Salaried (40+ hours/week). About the Mission: We are building the first generation of truly infinite games. Most RPGs follow a script; ours creates the world as you play. We are moving beyond static narratives by applying reasoning models and long-term memory (via RAG) to create coherent, evolving, and endless gameplay. The Role: We are looking for an expert Senior Developer to join us as a core contributor. You will report directly to and work in tandem with our Product Lead. In this role, the Product Lead will design the core systems and architectural requirements, and you will be responsible for the technical implementation and execution. This is a high-collaboration environment where you will turn complex system designs into production-ready code that drives our MVP to market launch. Core Responsibilities: • Take full ownership of technical implementation based on system designs provided by the Product Lead • Architect and maintain the bridge between our React frontend and Python AI services • Ensure high code quality and maintainability across a full stack environment • Collaborate synchronously during core overlap hours to iterate on game logic and AI behaviors The Tech Stack: • Next.js (App Router, SSR, API routes) and React • TypeScript for type-safe frontend and backend logic • Python (FastAPI/Flask) for AI agent services • Node.js for game server logic • PostgreSQL and Vector Databases (Pinecone/Weaviate) • Firebase (Auth, Firestore, Cloud Functions) Requirements: • 7+ years of full-stack engineering experience • Proven ability to work closely with Product/Design leads to implement complex specifications • Strong proficiency in both TypeScript and Python • Experience shipping products from development to production (0 to 1) • Experience with LangChain, RAG, or LLM orchestration is highly desirable • Must be available for synchronous collaboration during partial US/EU business hours • Expertise in AI-augmented development workflows, leveraging tools like Cursor or Claude Code to accelerate high-velocity software delivery.

Requirements

• TypeScript
• Python
• Next.js
• React
• Node.js
• PostgreSQL

Preferred Technologies

• TypeScript
• Python
• Next.js
• React
• Node.js
• PostgreSQL