Senior Backend Engineer - Perpetual/Derivatives Platform (SunCrypto) Jaipur (in office) | 4–8 years
We are building India's next-generation crypto derivatives venue: a perpetual futures platform where every microsecond, every satoshi and every state transition has to be right. We're hiring a senior backend engineer to own the core of that system.

SunCrypto is an FIU-IND registered Indian cryptocurrency exchange (Angelic Infotech Pvt. FIU registration VA00031314), headquartered in Jaipur. We run a regulated spot exchange serving Indian retail and institutional customers, and we are now expanding into derivatives, starting with perpetual futures built in-house by a small, senior engineering team that reports directly to the CTO.
We operate under the Prevention of Money Laundering Act and India's VDA tax regime. That shapes how we engineer: auditability, reconciliation and exactly-once accounting are product requirements, not afterthoughts.

You will design, build and operate the backend services behind our perpetual futures product: the order lifecycle, position and margin engine,



real-time market data fan-out, liquidity and hedging integrations with global venues, and the ledger that ties it all together.
You will write code most days, review the code of others, be on the on-call rotation for the systems you ship, and be trusted to make technical decisions that a CTO would otherwise have to make.
Model order books and state in Redis (sorted sets, Streams, Lua-scripted atomic operations) and persist authoritative state in MySQL 8 with correct isolation and locking.
Financial correctness and the ledger
Implement a double-entry ledger with decimal arithmetic end-to-end, no floating point anywhere near money.
Build reconciliation jobs that prove our books balance against external venues, wallets and internal accounts, every hour of every day.
Real-time market data and connectivity
js) to tens of thousands of concurrent connections: sharding, heartbeats, reconnect semantic

📌 Back End Developer Engineer (Jaipur)
🏢 Suncrypto
📍 Jaipur