Senior Full-Stack Developer (React Native & Node.js)

STX Next is a global IT consulting company specializing in customer-focused software services with a team of 500 professionals.

• Senior-level hands-on production experience with React Native (including Expo) and the modern Node.js ecosystem.
• Solid experience with Firebase, core Node.js fundamentals, and relational databases (PostgreSQL, MySQL).
• Deep practical experience with TanStack Query, Zustand, react-hook-form, Reanimated, Typesense, branch.io, and RevenueCat.
• Excellent English communication skills (minimum B2/C1) to articulate technical decisions clearly.

Nice to have:

• Practical experience with AI-powered development tools like Cursor and GitHub Copilot.
• Familiarity with targeted monetisation and advanced search libraries such as RevenueCat and Typesense.
• Experience with Cloud and DevOps workflows including AWS, Docker, and CI/CD.

• Mobile & Backend Ownership: Build, refine, and optimise mobile features using React Native (Expo) and TypeScript, ensure scalable backend services with Node.js and Firebase.
• Architecture & Integrations: Implement complex mobile UI animations, in-app purchases, and third-party API integrations like DeepL and SendGrid.
• Consulting & Communication: Translate technical requirements into business value, collaborate with stakeholders, and advise on technical decisions.
• Quality & Analytics: Ensure application performance and error tracking using tools such as Sentry and PostHog, establish shared standards for the team.