Ranjan Kumar
Contact details — on requestProof of Work — on request
Experience
Software Developer Engineer
Flipkart · Aug 2024 – Apr 2026
- 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
Software Development Engineer
Flipkart · Aug 2024 – Apr 2026
- Developed and deployed scalable React Native, React.js features serving 180M+ MAU across Android, iOS, and Web platforms with 85%+ code reusability, maintaining high code quality and cross-platform compatibility.
- Engineered a cross-platform Product Variant Multi-Selector Bottomsheet for Search & Browse pages across Flipkart, Grocery, and Minutes (Android, iOS, Web), enabling instant multi-attribute selection, reducing checkout journey by 40% and driving 12% conversion uplift through intelligent availability management.
- Built Inline Recommendation feature for Flipkart Minutes (50M+ users), increasing basket size by 20%+ and engagement by 25%+ through intelligent ML-powered product suggestions and streamlined basket building.
- Developed membership programs feature (Plus, Black) with One-Click Activation via WhatsApp/SMS during BBD 2025, onboarding 5M+ subscribers in 3 days and scaling to 50M+ total members with zero service disruptions.
- Implemented Buy Again feature using order history intelligence, improving user retention by 18%+ and repeat purchase rate by 25%+ while reducing reorder time by 40%+ for 500M+ registered users.
- Maintained 99.9% system uptime during BBD 2025 with record-breaking traffic, ensuring zero critical failures through robust microservices architecture, New Relic monitoring, and optimized performance.
C
Software Engineer Intern
Cadence Design Systems · Jan 2024 – Jun 2024
- 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
Software Engineering Intern, EDA
Cadence Design Systems · Jan 2024 – Jun 2024
- Enhanced Cadence Virtuoso automation workflows using C++ and Linux, improving development efficiency by 15%+.
- Resolved 20+ Qt-related UI issues using advanced debugging and OOP design patterns, improving stability by 25%+.
- Implemented comprehensive error handling system with 100+ test cases, reducing debugging time by 30%+.
- Collaborated with cross-functional teams using Perforce, Agile methodologies, and code review practices.
Machine Learning Intern
ISRO - Indian Space Research Organisation · Jun 2023 – Jul 2023
- 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.
Skills 0 proven through work
Also works with
CodingProcess ImprovementAdaptabilityProject TrackingModular System DesignAttention to DetailWork Planning and PrioritizationCross-Departmental CoordinationTeamworkFeature OwnershipUI Performance OptimizationTechnical TroubleshootingQt DevelopmentBug FixingError HandlingApplication MonitoringPython DevelopmentStructured LoggingTool DevelopmentLinux Operating System UsageC++ ProgrammingBuilding Web ApplicationsiOS DevelopmentAndroid App DevelopmentCross-Platform DevelopmentCloud SynchronizationCode OptimizationApplication State ManagementAPI Payload MappingAPI IntegrationAvailability ManagementMicro InteractionsUser Experience ImprovementProblem SolvingFront-end DevelopmentSoftware Development Practices
Proof of Work
Proof of Work
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Education
Bachelor of Technology, Computer Science and Engineering
Dr. B R Ambedkar National Institute of Technology Jalandhar · 2020 — 2024
A.I.S.S.C.E., P.C.M.
Jawahar Navodaya Vidyalaya Saran, Bihar · 2017 — 2019
Contact details
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