My resume
Education
- Aug 2014 · May 2018B.E in Computer Science and EngineeringVisvesvaraya Technological UniversityGrade - FIRST CLASS
Full time Bachelors Degree Course majoring in Computer Science. Immersive Practical knowledge ranging from Computer Architecture, Data Structures, Advance Algorithms, Operating Systems, Networking etc. - Mar 2012 · Mar 2014High School (XII)The Pentecostal Assembly SchoolGrade - 9.5 CGPA
Full time CBSE Curriculum with Science subjects such as Physics, Chemistry and Mathematics. English as a language and Computer Science as a special subject
Work Experience
- May 2024 · PresentSenior Software EngineerBuilt and scaled the Living Design (Design System) UI Library which is used across Walmart platforms using Next.js, TypeScript, SASS, Tailwind, CVA improving UI consistency and reducing dev cycle time by 40%. Developed child apps like Data Dictionary and Knowledge Base with search module using Google Vertex AI from scratch, optimized for concurrency and modular reusability. Led performance tuning efforts, achieving sub-200ms latency for critical paths and supporting 1000s of RPM. Integrated analytics, caching, AI workflows, enhancing usability insights, conducted research for new design patterns, micro frontend architecture, MCP, reducing tech debt by 60% & improving overall Developer Experience (DX).
- Aug 2022 · Feb 2024SDE IIIArchitected and developed a scalable B2B seller dashboard using React, Next.js (SSR), and modular TypeScript, supported 2,000+ sellers with seamless UX and < 250ms latency. Implemented real-time loggers and event tracking for marketing campaigns, enhancing user visibility and frontend observability at scale. Built key customer-facing features like user Wallet, Reviews, KYC, Refer & Earn designed for high responsiveness and smooth user experience. Collaborated closely with backend and infra to ensure frontend handled spikes of 50K+ concurrent sessions with consistent UI responsiveness.
- May 2021 · Jul 2022SDE IIIDeveloped the all new 3 panel design for our webapp using Next & React, optimizing performance and user experience. Developed the Koo Embed system used by major media outlets like Times of India. Focused on website optimization, latency reduction, CDN performance, and security enhancements, including mitigating XSS and DOM Injection. Improved dashboards, content moderation, and reporting tools for the Operations team.
- May 2020 · May 2021SDE IIPart of the core team to develop 'GALE' from inception to delivery, creating a robust Design System and pixel-perfect user interfaces with React and TypeScript. Actively contributed to product discussions, conducted code reviews, and enhanced website performance. Managed infrastructure on Google Cloud Platform, performed container orchestration with Docker, and automated configuration management using Ansible in Red Hat Enterprise Linux. Involved in Digital Engineering and Culture Pod, including developer interviews and onboarding.
- Jun 2018 · May 2020Associate - ProjectsContributed to the development team for the Claims engine and Insurance management in the TriZetto Provider Solutions project. Managed production-ready builds, deployments, and CI/CD pipelines using Microsoft Azure, ARM Templates, and Chef for configuration management. Collaborated with cross-functional teams across the United States. Hosted weekly knowledge sessions on Machine Learning and Blockchain to explore potential enhancements to our product
Recommendations
- Abhisek SubhamSenior Software Engineer at WalmartI had the pleasure of mentoring Rajat during his journey as a frontend developer, and I can confidently say he's one of the most thoughtful and resourceful individuals I've worked with. His ability to think outside the box consistently brought innovative solutions to the table, whether it was tackling tough tech backlogs or enhancing our design system with reusable, scalable components. Rajat manages his tasks with clarity and focus, always staying dedicated to the broader mission. A self-taught learner with insatiable curiosity, he frequently delves into new concepts and technologies, continually upgrading his skills independently and applying them with precision. He approaches challenges with a quiet determination and professionalism that truly sets him apart. Rajat would be a tremendous asset to any team.
- Devanathan VaithianathanSenior Software Engineer at WalmartI had the pleasure of working closely with Rajat Gupta for a year on front-end React projects. Rajat consistently delivered clean, efficient code and brought thoughtful solutions to complex UI challenges. Beyond technical skills, Rajat is a great teammate—collaborative, reliable, and always ready to help. I highly recommend Rajat for any team looking for a strong front-end engineer Lead.
- Shivam TomarSDE III at WalmartI've had the pleasure of working closely with Rajat Gupta on several high-impact initiatives, and I wholeheartedly recommend them for any future endeavors. Rajat has consistently demonstrated strong leadership in driving key projects forward, particularly in the areas of modernisation, platformisation, and componentisation. Their ability to break down complex frontend challenges and introduce scalable, forward-thinking solutions has been instrumental in elevating our platform’s architecture. One of their most significant contributions has been onboarding new frontend tech stacks into our projects. With a deep understanding of modern frontend frameworks and tooling, Rajat has not only made strategic technical choices but also ensured smooth transitions for the team through thorough documentation, training, and mentorship. Beyond their technical acumen, Rajat is a proactive and collaborative team player. They strike a fine balance between long-term vision and immediate delivery needs, making them an invaluable asset in both planning and execution phases. I highly recommend Rajat to any team or organization looking for a technically strong, visionary, and dependable professional.
- Aman RajProcess Manager, American ExpressRajat is an exceptional & highly reliable guy to work with. He brings innovation to the team and always a friendly face to interact with. He thinks out of the box and learns domain knowledge very quickly. He gives attention to detail and applies good design patterns while writing code. He's very helpful to others and has strong communication skills.
- Mayank BidawatkaCEO at Billion Hearts, ex Co-Founder at Koo AppRajat was instrumental in transforming our website into a sleek Progressive Web App (PWA) with a fantastic 3-panel design. His most significant contribution, the multilingual Koo feature, broadened our reach immensely. Rajat is your go-to person for top-notch frontend development and innovative leadership.
- Phaneesh GururajHead of Engg at Ema.co, ex CTO at Koo AppAs the CTO, I've had the pleasure of witnessing his technical prowess firsthand. Rajat played a pivotal role in optimizing our website, enhancing core web vitals, and implementing robust security measures against XSS and DOM payload attacks. His dedication to improving user experiences and safeguarding our platform is commendable. Rajat is a standout frontend developer and an invaluable asset to any team. I wholeheartedly recommend him.
- Parth PratikCo-Founder at VibecityRajat's expertise in Next.js development is truly exceptional, and he took complete ownership of our seller dashboard. He played a pivotal role in creating features like the Wallet, Reviews, and even created Indievibe from scratch. His dedication and technical skills are outstanding, making Rajat a key asset to any team.
- Madhu LakshmananCEO at Greyamp ConsultingRajat excels as an experienced React developer and has shown remarkable skills in creating our Design System. He seamlessly collaborates with the Product & DevOps team, demonstrating his adaptability and strong teamwork. Rajat also owns the development of our GALE platform and consistently proves his prowess in algorithmic problem-solving.
Awards
- 2025Badgify (x4)Walmart Global TechThis recognition is awarded to me for my contributions in helping the team solve complex flows, mentoring new joiners, and delivering high-quality code. It reflects my ability to excel as a team player.
- 2018 - 2020Associate of the Month (x3)Cognizant Technology SolutionsThis recognition not only affirmed my abilities as a full stack developer but also highlighted my efforts in working with a large team across different time zones.
- 2021Employee of the monthKoo AppThis recognition was awarded to me after I developed the all new 3 panel design for our platform in extremely competitive timeframe.