Lead Software Engineer - Frontend / Fullstack

Our Purpose Mastercard powers economies and empowers people in 200 countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Lead Software Engineer - Frontend / Fullstack Lead Software Engineer, Front-End & Full Stack AI Applications – Foundry R&D, Singapore We are looking for a Lead Software Engineer to join the Mastercard Foundry R&D team. You will work on innovative, scalable products, experiment with new technologies, and help shape our AI-driven user experiences. The ideal candidate is hands-on, curious, motivated, and comfortable working in fast-moving R&D environments. What you'll do * Lead front-end development for AI products: Design and build modern, interactive web interfaces for AI-driven applications. Create dashboards and visualisations that make AI insights intuitive and accessible. Iterate quickly to prototype new capabilities and demonstrate product potential. * Full-stack architecture and integration: Own the end-to-end architecture from front-end to backend interaction. Build modular components and ensure smooth integration with services and APIs. Use scalable patterns including micro-frontends where helpful. * Design intuitive UX and visualisations: Apply strong UI/UX thinking to simplify complex AI outputs. Build visual elements such as charts, trends, or agent reasoning views that improve clarity and usability. * Ensure quality, performance, and security: Implement testing across unit, integration, and end-to-end layers. Maintain code quality through reviews and enforce security and performance best practices. * Mentor and collaborate: Guide junior engineers, review code, and encourage use of strong design patterns. Work closely with designers, product managers, and AI researchers to deliver well-rounded solutions. What you'll bring * Strong front-end expertise: 8–12+ years of software development with deep experience in modern front-end stacks. Proficiency in JavaScript/TypeScript, React (preferred), or Angular/Vue. Skilled in state management, routing, build tooling, and UI architecture. * Broad full-stack experience: Competent in backend development, especially REST APIs and database design using SQL or NoSQL technologies. * User-centric mindset: Ability to translate complex concepts into clear, usable interfaces. Experience working with design tools and prototypes. * Architectural leadership: Background designing modular, scalable front-end systems. Experience promoting clean structure, reusable components, and documentation. * Strong communication and collaboration: Able to work with distributed teams and communicate clearly with technical and non-technical stakeholders. * Continuous learning: Comfortable working with ambiguity and exploring new technologies. Motivated to build prototypes and evolve solutions quickly. Required skills * Education and experience: Bachelor's degree in Computer Science or related field. 8–12+ years in software engineering with significant front-end experience. * Front-end development: Expert in JavaScript and TypeScript. Extensive experience with React or similar frameworks. Skilled in translating UI/UX designs into high-quality web interfaces. * UI/UX and visualisation: Experience building interactive UIs and data visualisations. Ability to work from design tools such as Figma or Adobe XD and ensure attention to detail. * Backend and API integration: Strong ability to integrate with RESTful APIs, manage asynchronous calls, handle data formats, caching, errors, and retries. * Software quality and DevOps: Experience writing automated tests using Jest, Mocha, or similar ... (truncated, view full listing at source)