Senior Full-Stack Developer (React Native & Node.js) | Short-Term B2B Freelance

• Senior-level expertise with React Native (including Expo) and modern Node.js ecosystem.
• Solid experience with Firebase services, core Node.js fundamentals, and relational databases (PostgreSQL, MySQL).
• Deep practical experience with libraries: TanStack Query, Zustand, react-hook-form, Reanimated, Typesense, branch.io, and RevenueCat.
• Excellent English communication skills (minimum B2/C1+).

Nice to have:

• Practical experience with AI-powered development tools (e.g., Github Copilot).
• Familiarity with targeted libraries for monetisation (RevenueCat) and advanced search (Typesense).
• Experience with Cloud and DevOps workflows (AWS, Docker, CI/CD).

• Build, refine, and optimise mobile features using React Native (Expo) and TypeScript.
• Ensure scalable backend services within the Node.js and Firebase ecosystem.
• Implement complex mobile UI animations, in-app purchases, and third-party API integrations such as DeepL and SendGrid.
• Translate complex technical requirements into business value.
• Collaborate directly with stakeholders and advise on key technical decisions.
• Ensure smooth application performance and error tracking with tools like Sentry and PostHog.
• Establish shared standards and raise the bar for the entire team.