Bulgaria•Romania•Hungary
Remote
Senior
Full Time
React NativeTypeScriptAI-assisted developmentCross-platformFullstackSenior
Requirements
- •Strong commercial experience with React Native and modern TypeScript-based application development
- •Solid understanding of full-stack architecture including mobile, web, BFF, and cloud/infrastructure layers
- •Experience building scalable cross-platform systems and shared application foundations
- •Deep understanding of software architecture, modular systems, scalability, and performance optimization
- •Experience working with CI/CD pipelines, automation tooling, and modern developer workflows
- •Strong engineering mindset focused on maintainability, reliability, testability, and fast iteration
- •Comfortable working in AI-assisted or agentic development environments and adopting new AI-driven workflows quickly
- •Experience with backend-driven UI architectures
What You'll Do
- •Build and evolve a cross-platform ecosystem covering mobile, web, BFF, and infrastructure layers using an AI-first, agentic development approach
- •Design scalable foundations for health & fitness applications powered by React Native and modern web technologies
- •Work directly with product, design, and marketing stakeholders to rapidly translate business needs into scalable technical solutions and experiments
- •Develop and continuously improve AI-agentic workflows across the full development lifecycle to increase team productivity, code quality, and delivery speed
- •Develop shared platform capabilities, internal tooling, CI/CD pipelines, and AI-assisted workflows that improve development speed and product quality
- •Work on native mobile integrations and advanced media experiences, including video playback, streaming, and HLS-based solutions
- •Contribute to modular architectures, reusable systems, backend-driven UI solutions, and white-label application capabilities
- •Build reliable and scalable integrations between frontend clients, BFF services, and platform infrastructure
- •Participate in architecture discussions, code reviews, documentation, and continuous improvement of engineering workflows
Nice to Have
- •Experience building white-label mobile applications or multi-brand ecosystems
- •Experience designing and implementing BFF (Backend for Frontend) services
- •Hands-on backend development experience with TypeScript (Node.js)
- •Experience building internal developer platforms, shared tooling, or scalable platform capabilities
- •Familiarity with OWASP mobile security best practices
- •Experience with engineering methodologies focused on rapid iteration and high developer productivity (Trunk Based Development, CI/CD mindset, TDD, BDD, XP, etc.)
- •Strong experience with native mobile integrations and media/video playback technologies
- •Hands-on experience with HLS streaming and native video player integrations on iOS and Android (AVPlayer, ExoPlayer, Chromecast, AirPlay)
About WellTech
Welltech is a leading provider of digital technologies designed to help people improve their health and wellbeing.
London, UK
500-1000
Healthcare