Staff / Senior Product Engineer (Full Stack - Python/React Native)

Filevine is a Legal AI company delivering Legal Operating Intelligence for the future of legal work. Grounded in a singular system of truth, Filevine brings together data, documents, workflows, and teams into one unified platform—where modern legal work happens with clarity and consistency.

Powered by LOIS, the Legal Operating Intelligence System, Filevine connects context across every matter to transform legal operations from reactive to proactive. LOIS reads, understands, and reasons across your data to surface insight, automate complexity, and give professionals the clarity and confidence to see more, know more, and do more. Fueled by a team of exceptional collaborators and innovators, Filevine’s rapid growth has earned AI awards and recognition from Deloitte and Inc. as one of the most innovative and fastest-growing technology companies in the country.

Role summary

This is a senior, end-to-end Full-Stack Product Engineer role, pivotal in building and deploying features across the entire technology stack. You will be responsible for architecting and maintaining high-performance mobile applications using React Native and developing scalable backend APIs with Python, FastAPI and Temporal. The primary goal is fast iteration and to ensure the stability and reliability of the product, from database design to UI implementation, including critical work in workflow orchestration, monitoring, and quality assurance.

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

Qualifications

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

Compensation starts at 6,000 EUR per month, with the final offer determined by the candidate’s seniority and experience.

This opportunity is for independent contractors and is not intended to establish an employment relationship. Contractors are responsible for their own taxes and compliance with applicable laws in their jurisdiction.

This role is open exclusively to candidates currently residing in, or willing to relocate to, Czechia or Slovakia with the legal right to work in these countries. Unfortunately, we are unable to consider applications from candidates based outside of these locations due to operational and regulatory requirements

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