Senior Full-Stack Developer - Python, Node.js, React
Posted May 12, 2026
About us
Appnovation is a global, full-service digital partner that combines Strategy, Experience & Design, Engineering and Managed Services. We build digital solutions that deliver real impact today and serve as foundations for future growth. Bold ambition. Practical action. Endless possibilities. ### RESPONSIBILITIES
Your key responsibilities will include:
- Architect and build custom web applications using Node.js (Nest.js, Express, Hono), Python (FastAPI, Flask), and Next.js/React. - Design and build RESTful and/or GraphQL APIs that serve multiple frontends and integrate with third-party services. - Integrate AI and LLM APIs as a core logic layer, building intelligent features such as validation, classification, content generation, and decision support. - Implement authentication, authorisation (JWT, OAuth, RBAC), and security across applications. - Design and manage database layers (PostgreSQL, MongoDB, cloud-managed equivalents), including schema design, migrations, and query optimisation. - Architect with cloud-native patterns: edge functions, CDN configuration, serverless deployments, and caching strategies. - Write and maintain automated tests across the full stack: unit (Vitest/Jest), API/integration, component (React Testing Library), and E2E (Playwright/Cypress). - Orchestrate AI development tools (Claude Code) through strategic prompting, ensuring high-quality, production-ready output. ### EXPERIENCE