Ranjan Kumar

Software Engineer

Patna, Bihar, India1 yr 8 mos experience

Key Highlights

Built features for 180M+ monthly active users.
Achieved 99.9% uptime during Big Billion Days 2025.
Onboarded 5M+ users in just 3 days.

Stackforce AI infers this person is a Frontend-focused Software Engineer in the E-commerce sector.

Contact

Skills

Core Skills

React NativeTypescriptC++Python

Other Skills

React.jsJavaScriptReduxObject-Oriented Programming (OOP)Python (Programming Language)Problem SolvingCross-team CollaborationCollaborative Problem SolvingAPI DevelopmentGitHubSoftware RequirementsScriptingVersion ControlStatisticsMicrosoft Visual Studio

About

Software Development Engineer at Flipkart, building cross-platform mobile experiences for 180M+ monthly active users using React Native and TypeScript. 🚀 Key Highlights: • 180M+ MAU | 90%+ code reusability across Android, iOS, mWeb • Product Variant Selector: -40% checkout, +12% conversion • Inline Recs (50M+ users): +25% engagement • Membership Activation: 5M+ users in 3 days • Buy Again: +18% retention, +25% repeat purchases • 99.9% uptime during BBD 2025 💻 Tech Stack: React Native, React.js, TypeScript, JavaScript, Redux, C++, Python 🎓 B.Tech CSE from NIT Jalandhar (CGPA: 8.26) 📊 500+ LeetCode problems | Contest Rating: 1701 Previously interned at Cadence Design Systems (EDA) and ISRO (Machine Learning). Open to connecting with fellow developers and tech enthusiasts! 📧 ranjankumar.nitjcse24@gmail.com 🌐 Portfolio: https://ranjanj17.github.io/portfolio

Experience

1 yr 8 mos

Total Experience

1 yr 8 mos

Average Tenure

Current Experience

Flipkart

Software Developer Engineer

Aug 2024 – Apr 2026 · 1 yr 8 mos · Bengaluru, Karnataka, India · On-site

Building scalable React Native and React features serving 180M+ MAU across Android, iOS, and mWeb platforms.
Key Contributions:
Built Inline Recommendation feature for Flipkart Minutes (50M+ users), increasing basket size by 20%+ and engagement by 25%+
Engineered cross-platform Product Variant Multi-Selector Bottomsheet, reducing checkout journey by 40% and driving 12% conversion uplift
Developed Flipkart Membership (Plus, Black) with One-Click Activation, onboarding 5M+ subscribers in 3 days during BBD 2025
Implemented Buy Again feature improving user retention by 18%+ and repeat purchase rate by 25%+
Maintained 99.9% system uptime during Big Billion Days 2025 with zero critical failures
Achieved 85%+ code reusability across all platforms
Tech Stack: React Native, React, TypeScript, JavaScript, Redux, Android, iOS, New Relic

React NativeReact.jsTypeScriptJavaScriptRedux

Cadence design systems

Software Engineer Intern

Jan 2024 – Jun 2024 · 5 mos · Noida, Uttar Pradesh, India · On-site

I have hands-on experience as a Software Engineering Intern at Cadence Design Systems, where I enhanced design automation processes with the Cadence Virtuoso tool, resolved Qt-related issues to improve software stability and performance, and implemented a robust messaging system for enhanced user feedback and debugging. I'm passionate about leveraging my skills in coding, technology, and problem-solving to collaborate with like-minded professionals on impactful projects.

C++Object-Oriented Programming (OOP)

Isro - indian space research organisation

Machine Learning Intern

Jun 2023 – Jul 2023 · 1 mo · Remote

Developed SRGAN super resolution model for the remote sensing image. My responsibilities included Software development and Data Sample generation of remote sensing images for multiple object detection using machine learning in python.

Python (Programming Language)Problem SolvingPython