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Pankaj Kumar
Software Engineer with 6+ years owning end-to-end development of enterprise-scale web platforms, now working on compliance infrastructure at Google. Drove 75% page load improvement for a $500M revenue product, architected microfrontend migration serving global bank and merchant users, and built internal tools that saved 600+ engineering hours annually. Passionate about performance, scalable architecture, and shipping products that move business metrics.
Experience
Google | Software Engineer
Jun 2026 - Present | Bangalore, India
Assured Workloads - Google Cloud's compliance framework enabling regulated customers to run workloads under specific regulatory, sovereignty, and security controls.

Resolved regulatory compliance redressals blocking a product's General Availability release, clearing the path to GA.

Scaling the compliance/audit records pipeline from 100K to 2M records to support growing workload coverage.

Mastercard | Senior Software Engineer
Mar 2024 - Jun 2026 | Pune, India
Operational Reports - Mastercard's flagship reporting platform used by 1,000+ banks and merchants in 50+ countries to access transaction data, settlement reports, and financial reconciliation. Serves up to 10M line-item reports per cycle, driving $500M+ in annual revenue.

Own the frontend architecture for the OR platform end-to-end. Designed and shipped major features including one-click report checkout, advanced catalog search with filters, and WCAG 2.2 AA accessibility compliance - directly improving daily workflows for thousands of enterprise users.

Drove a 75% page load improvement (Largest Contentful Paint from 5.2s to 1.2s) by profiling critical rendering bottlenecks and implementing a layered optimization strategy: Brotli compression, route-level code splitting, lazy loading of below-fold modules, image format migration, and edge caching.

Architected migration to microfrontend architecture using Webpack Module Federation, decomposing a monolithic React app into independently deployable modules. Reduced CI/CD build times from 8+ minutes to under 90 seconds and enabled parallel team development across 3 squads.

Built the product's first analytics dashboard (React + Spring Boot + Chart.js) tracking feature adoption rates, search query patterns, and customer journeys. Insights contributed to a 20% year-over-year revenue increase.

Designed and shipped an AI-powered chatbot (Angular, Python, Hugging Face LLMs) enabling natural language queries on reconciliation data. Reduced L1 support tickets by enabling self-service for top 15 most-asked report queries.

Implemented OTP-based authentication with Spring Boot Security and JWT token rotation, replacing legacy session-based auth for enterprise clients handling PCI-sensitive financial data across 50+ countries.

Mentored 10-12 junior engineers and interns through structured bootcamps on React, JavaScript, and frontend performance. Established weekly code review culture that improved PR quality and reduced production bugs.

Mastercard | Software Engineer 2
Aug 2020 - Mar 2024 | Pune, India
Worked across Operational Reports (enterprise transaction reporting) and internal developer platforms (tooling to accelerate report onboarding, testing, and compliance).

Designed and built an internal report onboarding tool (React + Spring Boot) automating configuration, validation, and deployment. Replaced 2-3 week manual process with a 2-day workflow. Saves 600+ engineering hours annually.

Contributed to the core reporting engine rendering up to 10 million line items per report. Optimized client-side pagination, virtual scrolling, and data chunking. Platform generates $450M in annual revenue.

Won Mastercard's company-wide hackathon building Index Hub - a self-service marketing insights platform. Built in 48 hours, later championed by leadership for productionization.

Integrated GraphQL alongside REST APIs for selective data fetching, reducing average API payload size by 40% and improving dashboard load times.

Led PCI DSS certification and drove architecture redesign for Indian data localization (RBI mandate), enabling Mastercard to onboard Indian banks as OR customers for the first time.

Education
Indian Institute of Technology (IIT) Kharagpur
2020
M.Tech + B.Tech (Hons.) Dual Degree, Computer Science & Engineering
Technical Skills
Languages: JavaScript (ES6+), TypeScript, HTML, CSS, Python, Java
Frontend: React, Redux, Angular, Module Federation, TailwindCSS, Webpack, Vite, Chart.js
Backend: Node.js, Express.js, Spring Boot, GraphQL, REST APIs, JWT/OAuth
Data & Tools: MySQL, MongoDB, Jest, Cypress, Git, CI/CD pipelines
Expertise: Web performance (Core Web Vitals), microfrontend architecture, accessible UI (WCAG 2.2), AI-powered tools
Projects
Built and actively use a full-stack deep work tracker (React, Firebase, Chart.js) that helps identify peak productivity patterns through focus heatmaps, distraction rankings, and session analytics. Features Pomodoro/stopwatch modes, real-time cross-device sync via Firebase, and Picture-in-Picture API for seamless background tracking.
Code Helper | VS Code Extension
Jun – Jul 2024
Identified developers spending 30+ minutes per feature on component documentation lookup. Built a VS Code extension with IntelliSense auto-complete and drag-and-drop code generation. TypeScript, React, VS Code API. Adopted by multiple teams, reducing component integration time by ~60%.
Recognition
KVPY National Research Fellow · Mastercard Sandbox Challenge Winner · Mastercard D&S Hackathon Winner · Operational Insights Innovation Award