Thamarai Selvan

Full Stack Developer with 5 years of total professional experience, specializing in modern JavaScript, TypeScript, React.js, and Node.js. Proven track record in designing, developing, and maintaining scalable responsive web applications and robust backend services. Highly experienced working within Agile/Scrum environments, integrating complex RESTful APIs and microservices, optimizing application performance, and collaborating with cross-functional teams to ensure seamless backend synchronization and high-quality deployments.

Associate Consultant at Infosys Limited (2025-01 – 2026-02)

• Engineered high-performance frontend components and robust backend APIs for the Walmart Seller Center, directly accelerating seller workflow efficiency across 10,000+ active sellers.
• Optimized scalable web applications using React.js, TypeScript, and Tailwind CSS, reducing average page load time by ~30% through code splitting and lazy loading strategies.
• Collaborated with DevOps teams to implement CI/CD pipelines and Docker containerization, cutting deployment time by ~40% and eliminating environment inconsistencies across 3+ staging environments.
• Contributed within a cross-functional Agile/Scrum team of 12+ engineers, maintaining high-performance standards and reducing regression bugs by ~35% over 6 sprint cycles.
• Authored comprehensive functional and E2E test suites using Playwright and Jest, achieving 90%+ test coverage across critical user journeys, dashboards, and real-time data sync workflows.

Software Developer at Appiness Interactive (2023-07 – 2024-11)

• Led end-to-end development of a responsive healthcare e-commerce platform serving 5,000+ monthly users for doctor appointments and online consultations using Next.js and Tailwind CSS.
• Built and integrated Razorpay payment gateway using Node.js and Next.js, processing 500+ daily transactions with zero payment failures post-launch.
• Synchronized mobile and web platforms by collaborating with 3 external mobile developers to integrate a shared backend system, reducing API duplication by ~50%.
• Partnered with DevOps to containerize environments using Docker and automate release workflows via CI/CD pipelines, reducing manual deployment effort by ~60%.
• Maintained 95%+ code quality across the codebase through rigorous testing and SonarQube audits, resolving 100+ code smell and vulnerability findings pre-release.

Junior Software Developer at Aequalisys Software Solutions (2022-05 – 2023-05)

• Built and maintained responsive web UIs using React, TypeScript, and Material UI for 6+ diverse client projects, consistently delivering within sprint deadlines.
• Designed and implemented REST API and GraphQL integrations handling 15+ data entities, improving frontend state management efficiency and reducing redundant API calls by ~25%.
• Adopted SASS for modular and scalable CSS architecture, reducing stylesheet size by ~20% and improving long-term maintainability across 3 large codebases.
• Developed Web3 features by integrating blockchain smart contracts into the UI for a decentralized platform, enhancing transaction transparency and application security.

Print Quality Assurance Associate at Amazon (2019-07 – 2020-12)

• Conducted quality checks on 200+ publisher submissions per week to ensure strict compliance with Amazon Kindle content and formatting standards.
• Maintained a consistent approval accuracy rate of 98%+ by identifying and resolving formatting, metadata, and content accuracy issues before publication.

Bachelor of Engineering – RVS Technical Campus (2014 – 2018)