Chain Singh
@chainsingh
I build scalable Java microservices, fintech payment systems, and cryptocurrency wallet infrastructure.
IndiaWhat I'm looking for
At RockWallet, I build end-to-end cryptocurrency wallet infrastructure for BTC, BCH, ETH, and ERC-20 tokens, including transaction creation, signing, synchronization, monitoring, and ACH/card on-ramp and off-ramp flows.
Previously at SaveIn, I led integrations with ICICI, HDFC, Kotak, and IDFC for pre-approved loan journeys, while delivering KYC, credit-check, UPI e-Mandate, and reliable merchant payout capabilities. I also built secure encryption and decryption workflows for financial and customer data.
At GaragePlug, I developed APIs, SAP and WhatsApp Business integrations, AWS-based public APIs, notification services, reporting microservices, and CI/CD pipelines. I bring 5+ years of backend development experience across fintech, blockchain, healthcare, and SaaS platforms.
Experience
Work history, roles, and key accomplishments
Backend Developer
RockWallet
Sep 2024 - Present (1 year 11 months)
Built end-to-end wallet infrastructure for BTC, BCH, ETH, and ERC-20 tokens. Developed transaction lifecycle management and implemented ACH and card-based on-ramp/off-ramp solutions.
Education
Degrees, certifications, and relevant coursework
Surendera Group of Institutions
Bachelor of Technology, Computer Science and Engineering
2016 - 2020
Grade: 75%
Pursued a Bachelor of Technology in Computer Science and Engineering, graduating with 75%.
Tech stack
Software and tools used professionally
Availability
Location
IndiaAuthorized to work in
Job categories
Skills
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