Looking for a job

Sangat Das

@sangatdas

Message

Full Stack Engineer at Coinsub building stablecoin payment infrastructure processing $100M+ in annualized volume.

India

Message

What I'm looking for

I’m particularly interested in backend and distributed systems, blockchain and Web3 infrastructure, stablecoins and payment infrastructure, fintech, engineering leadership, and developer infrastructure and automation.

At Coinsub, I’m building a payment gateway for USD stablecoin payments and subscriptions that’s running at a $100M+ annualized processing volume. I redesigned batch payment processing, cutting third-party processor and network fees by up to 90%.

At Community Gaming, I built and maintained an in-house blockchain indexer and introduced an architecture design that helped reduce the time to onboard a new chain by up to 80%. I also developed a questing and airdrop system that could handle up to 200,000 requests per day.

Earlier, at Barclays, I built REST APIs with Spring Framework to modernize legacy banking services and helped cut Veracode-flagged vulnerabilities by about 80%. I enjoy working on technically challenging systems across backend engineering, distributed systems, blockchain, and financial technology.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Engineer

Current

Coinsub

May 2025 - Present (1 year 5 months)

● Building a payment gateway to process USD stablecoin payments and subscriptions, now running at a $100M+ annualized processing volume.
● Redesigned batch payment processing, cutting third-party processor and network fees by up to 90%.
● Informally mentor 1-2 engineers and partner directly with founders, the product team, and external merchants, contributing feedback and revenue-generating fea

Head of Engineering

Forkast

Mar 2025 - May 2025 (2 months)

● Provided crisis leadership through a senior leadership transition, renegotiated service contracts and helped with employee transition negotiations to contractors to save costs.
● Laid the foundation for prediction market liquidity providers by provisioning endpoints and providing documentation to relevant stakeholders.

Software Engineering Manager

Community Gaming

Apr 2022 - May 2025 (3 years 1 month)

● Built and led a 7-person engineering team in India from the ground up as Lead Software Engineer / Engineering Manager, owning hiring, mentoring, and delivery.
● Drove reliability and process improvements that lifted platform uptime by 15-30%+ and cut production incidents by up to 25%.
● Served as the primary India-side point of contact for executive leadership, product/design, and US/HQ engin

Backend and Blockchain Developer

Community Gaming

May 2021 - Apr 2022 (11 months)

● Built bracket management software supporting single/double elimination, round-robin, and Swiss, useful for conducting tournaments.
● Built and maintained the in-house blockchain indexer and introduced the architecture design that helped reduce the time to onboard a new chain by up to 80%.
● Contributed to smart contract design and development.
● Developed and designed the questing and airdro

Blockchain Developer

Schur Flexibles Group

Jan 2022 - Mar 2022 (2 months)

● Contributed to Planetmint, the underlying blockchain infrastructure for the Digital Packaging Initiative, which could potentially reduce losses up to 80% due to counterfeiting of high-value products through applied research and prototyping.
● Presented blockchain concepts and product feasibility to executive/business stakeholders and cross-functional packaging teams, supporting informed techno

Software Developer

Barclays

Jul 2019 - Apr 2021 (1 year 9 months)

● Middleware Technical Services (L3), Operational Datastore team — migrated backend services for critical applications (Barclays Mobile App, Retail Online Banking) to modern Java versions, including security updates to middleware and lower-level packages.
● Built REST APIs with Spring Framework to modernise legacy banking services.
● Drove remediation of Veracode-flagged vulnerabilities in clos