Full-Stack Engineer (React + Java)

About BayRock Labs
At BayRock Labs, we pioneer innovative tech solutions that drive business transformation. As a leading product engineering firm based in Silicon Valley, we provide full-cycle product development, leveraging cutting-edge technologies in AI, ML, and data analytics. Our collaborative, inclusive culture fosters professional growth and work-life balance. Join us to work on ground-breaking projects and be part of a team that values excellence, integrity, and innovation. Together, let's redefine what's possible in technology.

Join us to build beautiful, high-performance web experiences that power seamless payments for millions. As a Full-Stack Engineer, you’ll own the end-to-end lifecycle — from pixel-perfect UIs in React to scalable Java backends — delivering fast, reliable, and maintainable systems.

• Design, develop, and maintain high-quality, scalable web applications using React.js and modern JavaScript frameworks.
• Build reusable components and front-end libraries for rapid, consistent development.
• Translate complex business requirements and UI/UX designs into efficient, maintainable code.
• Collaborate closely with product managers, designers, and backend engineers to deliver seamless end-to-end experiences.
• Ensure performance, scalability, and responsiveness of applications under real-world load.
• Apply strong problem-solving and data structure skills to optimize front-end performance.
• Participate in code reviews and uphold high-quality engineering standards.
• Quickly ramp up on new technologies, tools, or product domains as needed.
• Integrate front-end components with backend systems (Java-based APIs and services).

• 5+ years of full-stack development experience.
• Expert-level React.js (hooks, context, state management: Redux/Zustand) and modern JS (ES6+, TypeScript).
• Strong Java backend skills (Spring Boot, REST APIs, microservices).
• Deep understanding of performance optimization (lazy loading, memoization, bundle analysis).
• Experience with responsive design, accessibility (a11y), and cross-browser compatibility.
• Proficiency in Git, CI/CD, testing (Jest, React Testing Library, JUnit).
• Solid grasp of data structures, algorithms, and system design.
• Excellent collaboration and communication — you bridge design, product, and backend.

• Experience in payments, fintech, or real-time dashboards.
• Built design systems or contributed to open-source UI libraries.
• Familiarity with GraphQL, WebSockets, or server-side rendering (Next.js).
• Cloud-native tooling (Docker, Kubernetes, AWS/GCP/Azure).