Saurabh Kumar

About Saurabh Kumar

Software Engineer with a strong background in frontend and platform engineering, experienced in building scalable, performant systems that enhance developer productivity and user experience. Skilled in Java, React, TypeScript, JavaScript and Node.js with a solid foundation in object-oriented programming, system design, and distributed web architecture. Passionate about optimizing build, test, and deployment workflows to improve engineering efficiency and reliability at scale.Core skills:React.js, TypeScript, JavaScript (ES6+), Node.js, Java, HTML5, CSS3, Tailwind CSS, Redux, GraphQL, REST APIs, Webpack, Testing (Jest, React Testing Library), Data structures and Algorithms, Problem Solving, Core web vitals optimizations, Design Systems (MaterialUI, Radix) and Frontend ArchitectureConnect Here:Email: a••••••••@gmail.comGitHub Profile: https://github.com/asksaurabhLeetcode Profile: https://leetcode.com/asksaurabh101/

Experience

1. Software Engineer 2

   Celigo

   Jul 2023 — Present · Hyderabad, IN

   Redesigned Celigo’s Flow Builder and API Builder preview interface in React, creating a cleaner, faster, and more intuitive user experience. Built JSON/Tree viewer components to visualize complex nested JSON data (resolving a key user pain point). Optimized rendering with memoization and virtualization, improving Core Web Vitals (LCP 1.3s → 0.95s), aligning UI with platform standards using Tailwind CSS.2. Transformed Celigo’s API Builder into a low-code, scalable platform, enabling visual API creation without scripting. Led integration with Flow Builder lifecycle, developed drag-and-drop React components, and enhanced accessibility. Reduced API creation time by 50%, debugging by 40%, and supported a go-to-market launch with estimated $2M in new revenue.3. Upgraded the Form Builder with native field integration, Handlebars-based dynamic filtering, and type-ahead search for real-time updates. Improved flexibility with manual refresh, caching, and extended property support. Achieved 30% faster load times, 25% fewer API calls, and zero regressions, boosting adoption and user satisfaction.4. Implemented secure Support Access, allowing Celigo’s support team to troubleshoot safely without credential sharing. Developed granular access controls (scope, level, duration), eliminating 3–4 days of delays, improving resolution time by 40%, and strengthening security.5. Optimized UI performance by enhancing polling with E-Tag–based caching, eliminating redundant updates, and refactoring generic polling sagas. Reduced re-render latency from 1.45s to 700 ms, boosting responsiveness and maintainability.6. Redesigned Mapper 2.0 and Transformation 2.0 with AI-powered auto-suggestions and a custom templating engine for dynamic Handlebar expressions. Implemented contextual dropdowns with improved accessibility, increasing feature adoption by 65%, accessibility and user engagement by 20%.

Education

• DAV Public School Dwarka

  X

  2006 — 2016

• National Institute of Technology Delhi

  Bachelor of Technology - BTech, Electrical and Electronics Engineering

  2019 — 2023

• Delhi Public School, Dwarka

  XI - XII, Science

  2016 — 2018