Chethan S
Software Development Engineer II at Amazon
Bengaluru, Karnataka, India
Summary
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Rockstar🎓
Top SchoolChethan S is a backend-focused SDE with ~5 years of hands-on experience building high-performance payment and infrastructure systems, currently at GoodScore after progressing from SDE intern to SDE at Juspay. He has driven core projects like HyperSwitch (an open-source Rust payments switch), refactoring API key management, integrating AWS SES, and adding process tracking for API key expiry. At Juspay he led development and mentoring on a dynamic routing service that reduced failed payments by ~15% and built simulation and observability tooling to validate routing choices. He combines strong CS fundamentals (B.Tech, 9.12 CGPA) with pragmatic engineering in Java, Rust, Python and JS, and experience across SQL/NoSQL and AWS. Earlier work includes optimizing computer-vision pipelines (YOLOv5s) to cut execution time by ~30%, showing he moves fluidly between algorithmic optimization and production systems. Known for shipping production-ready code, mentoring peers, and a penchant for refactoring messy domains into reliable, measurable services.
5 years of coding experience
3 years of employment as a software developer
Bachelor of Technology - BTech, Computer Science, Bachelor of Technology - BTech, Computer Science at Dayananda Sagar UniversityPCMC, Science, PCMC, Science at Sadhguru Sainath PU College
Stackoverflow
49reputation
16kreached
1answer
2questions
Github Skills (18)
postgresql10
restful-api10
rust10
aws-ses9
database-design9
payment8
open-source8
backend7
openapi7
jasmine6
junit6
rest6
spring6
webservice6
javascript6
Programming languages (1)
Github contributions (5)
juspay/hyperswitch
Apr 2023 - Aug 2025
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:712 reviews, 136 PRs, 568 pushes in 2 years 4 months
Contributions summary:Chethan's contributions primarily focused on refactoring the API keys functionality within the Hyperswitch project, implementing database queries using merchant and key IDs. Their work involved modifications to the database schema, the router's core logic, and associated API models. The user also integrated an email service using AWS SES and incorporated process tracking for API key expiry reminders. This indicates a focus on core payment-related back-end functionalities.
authorizationobservabilityvaultpaymentsrust
Chethan-rao/rust_codes
Apr 2023 - Jul 2025
Contributions:14 PRs, 233 pushes, 9 branches in 2 years 3 months
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