Senior Fullstack Engineer – Cross-platform

This is a fully remote position, open to applicants in Bulgaria.

📋 Description

• Develop and enhance a cross-platform ecosystem that encompasses mobile, web, BFF, and infrastructure layers utilizing an AI-first, agentic development methodology.

• Create scalable foundations for health and fitness applications leveraging React Native and contemporary web technologies.

• Collaborate directly with product, design, and marketing teams to swiftly translate business requirements into scalable technical solutions and experiments.

• Design and consistently refine AI-agentic workflows throughout the entire development lifecycle to boost team productivity, code quality, and speed of delivery.

• Create shared platform capabilities, internal tools, CI/CD pipelines, and AI-assisted workflows that enhance development efficiency and product quality.

• Engage in 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 functionalities.

• Establish reliable and scalable integrations between frontend clients, BFF services, and platform infrastructure.

• Take part in architecture discussions, code reviews, documentation, and the ongoing enhancement of engineering workflows.

⛳️ Requirements

• Extensive commercial experience with React Native and the development of modern TypeScript-based applications.

• Strong grasp of full-stack architecture, including mobile, web, BFF, and cloud/infrastructure layers.

• Proven experience in building scalable cross-platform systems and shared application foundations.

• In-depth knowledge of software architecture, modular systems, scalability, and performance optimization.

• Familiarity with CI/CD pipelines, automation tools, and contemporary developer workflows.

• A strong engineering mindset that emphasizes maintainability, reliability, testability, and rapid iteration.

• Comfortable operating in AI-assisted or agentic development environments and quickly adapting to new AI-driven workflows.

• Experience with backend-driven UI architectures.

🏝️ Benefits

• Health insurance

• Remote work options