Senior Product Engineer, Cross-platform

Welltech is a global wellness technology company focused on building and scaling wellness apps. As a Senior Product Engineer, you will own outcomes across the tech stack, leveraging AI-driven workflows to enhance productivity and develop scalable health and fitness applications.

• 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

• 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