Full Stack Engineer (React & Python)
RoundZeroWe are seeking a highly skilled Full Stack Engineer to join our growing product team. In this role, you will own the development of web applications from the database layer through to the user interface. You will work closely with product, design, and engineering stakeholders to architect, build, and deploy scalable features. You are comfortable working across the entire stack—crafting clean, modular React components on the frontend and building performant APIs and data pipelines with Python on the backend. You value code quality, testing, and collaboration. This is a hybrid role based in our San Francisco office with flexibility to work remotely two days per week.
Requirements
- 5+ years of professional software engineering experience
- Strong proficiency in React (including hooks, state management such as Redux or Context API, and modern JavaScript/TypeScript)
- Deep experience with Python (Flask, FastAPI, or Django) for building RESTful APIs and backend services
- Solid understanding of relational databases (PostgreSQL) and experience writing performant SQL queries
- Experience with cloud infrastructure (AWS or GCP) and containerization (Docker)
- Proven ability to write unit and integration tests (Jest, React Testing Library, pytest)
- Excellent communication and collaboration skills, with a track record of working in cross-functional teams
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