Full Stack Engineer

Role - Full Stack Developer L4

Company Overview

We’re building an AI evaluation platform that’s becoming indispensable for AI teams. As a Full Stack Developer (backend focused), you’ll craft intuitive, high-performance user experiences and maintain the robust backend services that power them. You’ll work with React, TypeScript, and modern UI patterns on the frontend, while leveraging Python, FastAPI, async architectures, PostgreSQL / SQLAlchemy, and Stripe integrations on the backend to deliver reliable and scalable features. You’ll help shape our architecture end to end, solving integration and data challenges with independence and creativity. Your work will ensure the platform is fast, secure, scalable, and seamless from client to server.

This role is ideal for someone who thrives in fast-paced environments, can think beyond implementation details, and is eager to grow while working across the stack. You’ll collaborate closely with product and engineering to deliver elegant solutions, working with tools such as :

Frontend : React, TypeScript, modern component libraries, and API-driven UI patterns.

Backend : Python, FastAPI, async services, PostgreSQL (SQLAlchemy), Redis, Stripe, and secure API integrations.

If you’re passionate about building end-to-end systems that deliver real-world business value for AI-driven teams and you take pride in shipping high-quality code quickly, we’d love to hear from you.

Role Overview

We're seeking an Python Full Stack Developer with strong Python and LLM provider API (e.G., Open AI, Anthropic, etc) integration skills to join our team. In this role, you'll be responsible for maintaining and enhancing our product’s backend services, AI capabilities, and data management systems.

Key Responsibilities

• Design, build, and maintain backend services using FastAPI, async Python, and modern API best practices.
• Enhance billing and subscription functionality using Stripe, including support for team billing.
• Develop and maintain authentication and RBAC or equivalent authorization workflows (involving JWT, access control, session logic).
• Model, optimize, and extend PostgreSQL schemas using SQLAlchemy (async) and Alembic migrations.
• Integrate external APIs securely and reliably, following best practices for async I / O, error handling, and retries.
• Support and troubleshoot Heroku deployments, configuration, and environment management.
• Write maintainable, well-tested code with clear documentation of system behavior and decisions.
• Collaborate with the product and frontend team to support new features and ensure strong API–UI integration.
• Provide proactive status updates and communicate effectively about code choices and technical decisions.
• Take accountability and ownership of your code end-to-end.

Required Qualifications

Bonus Qualifications

What We Offer