Prajjwal Kumar
Associate SDE
Karnataka, India
Summary
🤩
Rockstar🎓
Top SchoolPrajjwal Kumar is an Associate SDE with six years of hands-on experience across Android native, Spring/MERN full-stack development, and backend engineering in Rust at Juspay. He combines strong problem-solving chops—150+ LeetCode problems solved—with practical security and cloud skills from cybersecurity training and AWS architecting. His contributions to Juspay’s open-source payments switch involved reliability work around Redis and connector tests, reflecting a focus on robust, production-grade systems. Published research on P2P Android communication and FPV drone recognition shows an appetite for applied research and hardware-software integration. An immediate joiner and former founder of a college tech club, he pairs a fast-learning mindset (now studying Spanish) with a track record of organizing hackathons and shipping features under real deadlines.
6 years of coding experience
1 year of employment as a software developer
Bachelor of Technology - BTech, Information Technology, 8.5 CGPA, Bachelor of Technology - BTech, Information Technology, 8.5 CGPA at Dayananda Sagar InstitutionsNursery to class 6, Nursery to class 6 at Guru govind singh public schoolClass 12, Science, Class 12, Science at Sree Ayyappa Public School
English, Hindi, Spanish
Stackoverflow
11reputation
3kreached
2answers
0questions
Github Skills (12)
rust10
back-end-development10
redis10
restful-api10
api-design9
postgresql9
api9
apim9
oracle6
sql6
regex6
mysql6
Programming languages (16)
Github contributions (5)
juspay/hyperswitch
Mar 2023 - Jul 2026
Open source, composable payments platform | PCI compliant | SaaS and Self-host options | Enables connectivity to multiple payment, payout, fraud, vault and tokenization providers | Uplifts authorization with intelligent routing and revenue recovery | Reduce payment processing costs with cost observability | Reduces payment ops with reconciliation
Role in this project:
Back-end Developer
Back-end DeveloperContributions:425 reviews, 162 PRs, 924 pushes in 3 years 4 months
Contributions summary:Prajjwal primarily focused on implementing back-end features and maintaining the system's reliability. Their contributions involved gracefully handling situations where Redis is unavailable, modifying tests for connectors, and implementing features such as expiring client secrets. These changes touch multiple files indicating that the user was involved with the router and drainer functionalities within the project's backend architecture.
authorizationobservabilityvaultpaymentsrust
prajjwalkumar17/nvim
Apr 2023 - Jun 2025
configured Neovim based on my needs
Contributions:1 PR, 35 pushes, 6 branches in 2 years 2 months
neovim
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