Hybrid Senior Product Engineer – Full Stack, Python/React Native

at Filevine

• Job title: Senior Product Engineer – Full Stack, Python/React Native
• Job type: Contract
• Experience level: Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Gradle, JavaScript, Jest, Kubernetes, Prometheus, Python, React, React Native, SQL, TypeScript
• Location requirements: Hybrid, Prague, Czech

About the role

• Senior Full-Stack Product Engineer responsible for architecting mobile applications and backend APIs. Contributing to cloud-based workflow tools for legal work at Filevine.

Responsibilities

• End-to-End Development: Architect, build, and deploy features across the entire stack—designing the database schema, building performant Python APIs, and implementing the UI/UX in React Native when needed.
• Mobile Architecture: Maintain high-performance mobile applications, managing state, offline capabilities, and synchronisation with backend services.
• Backend Engineering: Develop and maintain scalable, asynchronous server-side logic and RESTful APIs using Python and FastAPI to support mobile functionality.
• Workflow orchestration: Integrate solutions developed by the ML teams for world-class Speech-To-Text technology in Temporal.
• Quality Assurance: Write comprehensive tests across the stack (Unit tests for Python via Pytest, Jest/Detox for Mobile) to ensure stability and reliability.
• Maintenance & Support: Troubleshoot production issues that span from the mobile client to server-side infrastructure.
• Monitoring & Observability: Maintain and monitor kubernetes infrastructure with regard to load balancing and autoscaling using tools like Prometheus and New Relic.
• Innovation: Lead initiatives to improve developer experience, CI/CD pipelines for mobile, and API performance.
• Code Reviews: Conduct detailed code reviews for both mobile (JS/TS) and backend (Python) codebases.

Requirements

• Minimum of 5+ years of software development experience.
• Full-Stack Proficiency: Strong experience in Python/FastAPI for backend services, at least some experience with React Native for mobile or strong experience in React.
• Demonstrated ability to design APIs specifically for mobile consumption (handling latency, pagination, payload sizes).
• Proficiency in JavaScript/TypeScript and modern React patterns (Hooks, Context).
• Experience with SQL and ORMs (e.g., SQLAlchemy, Tortoise ORM) and data validation libraries like Pydantic.
• Familiarity with Native Build Tools (Xcode, Gradle) and mobile publishing pipelines is a strong plus.
• Ability to work remotely and independently and to collaborate with non-technical stakeholders.
• Willingness to understand our users' challenges and how your work affects the end-user experience.