Lead Front-End Engineer (React/Angular & AI/LLM)

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 Front-End Engineer (React/Angular & AI/LLM) Lead Software Engineer, Front-End & Full Stack AI Applications - Foundry R&D, Pune We are looking for a Lead Software Engineer to be part of the Mastercard Foundry R&D team. You will be part of the team that drives Mastercard's innovation journey by consistently looking to discover and learn new skills and technologies and apply them to create highly scalable products. The ideal candidate is passionate about technology, willing to experiment, agile, highly motivated, intellectually curious, analytical, and possesses an entrepreneurial mindset. What you'll do * Lead Front-End Development for AI Products: Drive the design and development of cutting-edge web user interfaces for AI-driven applications. You will create rich, interactive dashboards and visualisations that surface insights from AI models in real time, making complex analytics intuitive and actionable for users, iterating quickly in an R&D environment to showcase what's possible with AI. * Full-Stack Architecture & Integration: Own the end-to-end technical design of the web application, from front-end to back-end integration. You will architect scalable, modular front-end components, potentially employing micro-frontend patterns and ensure they seamlessly connect to backend services and APIs. * Design Intuitive UX & Data Visualisations: You will translate complex AI outcomes into clear visual representations: for instance, plotting trends from an ML model on interactive charts, or displaying an AI agent's reasoning steps in a user-friendly manner. * Ensure Quality, Performance & Security: Take responsibility for the robustness of the web solutions you build instituting proper unit, integration, and end-to-end tests for all front-end code, and setting up automated pipelines to catch issues early. * Mentorship & Cross-Functional Collaboration: As a lead engineer, you will mentor junior engineers and set the bar for coding excellence. You'll conduct code reviews with a keen eye on design patterns, guide the team in using the right tools and frameworks, and help troubleshoot tricky issues in both front-end and backend code. You will also act as a bridge between cross-functional teams: working with product managers to refine requirements, with designers to iterate on the look-and-feel, and with AI researchers to understand how users should interact with new ML features. What you'll bring * Deep Front-End Expertise: Extensive experience, typically 8-12+ years in software development with a strong focus on modern front-end technologies. You have mastery of JavaScript/TypeScript, HTML5, and CSS3, and a proven track record building and shipping user-facing applications at scale using frameworks like React, Angular or Vue. You understand the ins and outs of front-end architecture - from state management like React Hooks, Context, Redux, etc. to routing and build tooling. * Full-Stack Technical Breadth: While your specialty is front-end, you bring a broad full-stack understanding. You have hands-on experience with back-end development, for example building RESTful APIs and a solid grasp of database design - SQL or NoSQL. * User-Centric Product Mindset: A strong product sense and UX mindset - you think from the end-user's perspective when building features. * Architectural Leadership & Quality Focus: Demonstrated ability to architect front-end systems for scale and maintainability. You enforce best practices in code ... (truncated, view full listing at source)