Lead Front-End Engineer (React/Angular & AI/LLM) Job Listing at Mastercard in Pune, MH (Job ID R-272697)

Description

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 structure and review - encouraging reusable components, clear separation of concerns, and comprehensive documentation
* Agile Collaboration & Communication: You can communicate technical concepts to non-technical stakeholders clearly, and conversely, can understand and incorporate feedback from design or product teams into the technical plan. When coordinating with globally distributed teams, you adapt to different time zones and cultures, ensuring smooth collaboration.
* Continuous Learning & Innovation: In a fast-moving R&D setting, you are comfortable with uncertainty and excited by greenfield projects. You take initiative to prototype new ideas or proof-of-concepts, for example, trying out a new way to display AI model confidence levels to users and aren't afraid to propose novel solutions.

Required skills
* Education & Experience: Bachelor's degree in Computer Science, Software Engineering, or a related field. 8-12+ years of software development experience, including substantial front-end development on complex, data-driven web applications.
* Front-End Development: Expert-level skills in JavaScript and TypeScript, with deep knowledge of a major front-end framework like React is strongly preferred; experience with Angular or Vue is also valuable).
* UI/UX and Visualisation Skills: Demonstrated ability to implement rich user interfaces and data visualisations. You have worked with design teams or used design prototypes on Figma, Adobe XD, etc. to translate UI/UX designs into code, paying attention to pixel-perfect details and user flow.
* Backend and API Integration: Strong competence in integrating the front-end with backend services and APIs. You must be comfortable working with RESTful APIs - making asynchronous calls using fetch/Axios, handling JSON/XML data, managing client-side caching, and dealing with error states and retries.
* Software Quality & DevOps: Proven experience in applying software engineering best practices to front-end projects. You write unit tests for your functions/components and have used frameworks like Jest or Mocha for testing.
* Security & Performance Considerations: Solid understanding of web security principles and performance tuning for web applications. You should know common web vulnerabilities like XSS, CSRF, clickjacking, etc. and how to mitigate them in front-end code, for instance, using proper escaping, content security policies, and secure cookies.

Preferred skills
* Real-Time & Advanced Web Features: Experience with real-time web technologies and interactive features beyond the typical request/response cycle. For example, implementing webSockets or Server-Sent Events / SSE for live updates such as refreshing dashboards with streaming data.
* Data Visualisation & Graphics Libraries: Additional expertise in data visualisation is highly desirable. This might include proficiency in libraries such as D3.js for bespoke, highly custom visuals, Plotly or Recharts, or using frameworks like Three.js for 3D visualisations in the browser
* Testing & DevOps Tooling: A track record of using advanced testing frameworks and DevOps tools on front-end projects. For instance, experience with Cypress or Playwright for end-to-end testing, beyond basic unit testing, shows your commitment to quality.
* Domain Knowledge of AI & FinTech: While not mandatory, having domain experience can be advantageous - for example, integrating an LLM into a chatbot interface, or building a UI for an AI-enabled analytics tool - you'll have a head start in understanding the special considerations of AI applications such as conveying uncertainty, handling model latency, etc.
* UI/UX Leadership & Innovative Projects: Evidence of having led or significantly contributed to innovative front-end projects is beneficial. This could be in the form of open-source contributions, hackathon wins, or writing tech blogs about front-end development.

Corporate Security Responsibility

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

• Abide by Mastercard's security policies and practices;

• Ensure the confidentiality and integrity of the information being accessed;

• Report any suspected information security violation or breach, and

• Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.

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