Senior Backend Engineer (8+ YOE) • Go / TypeScript • Low-latency Distributed Systems • AWS / Kubernetes
Dubai, UAE
Backend engineer with 8+ years of experience designing scalable, low-latency systems in finance and Web3. Built distributed services handling 140M+ users and 100K+ transactions/sec. Specialized in performance tuning and cost-optimized distributed systems.
- Built cross-chain infrastructure processing $1B+ total volume and optimized real-time decisioning to P95 40ms.
- Shipped reliability and cost wins: prevented duplicate withdrawals, saved $1,000+/day in gas, reduced user errors 85%.
- Designed log retention/storage architecture moving 8.5TB+/month with 70+% savings (~$3,000+/month) while improving accessibility/compliance.
- Scaled high-throughput financial systems: Supporting 100K+ order matches/sec, 2,000+ TPS ledger, and 750K RPM at 20M+ users.
Tech: Go, Node.js (TypeScript), Redis, Socket.IO, AWS, Solidity
- Built the Transmitter service from scratch powering cross-chain transactions; processed $1B+ total volume.
- Designed and implemented an Auction House that evaluates multiple bids and selects the best route in real time; P95 40ms using Socket.IO for bidirectional low-latency communication.
- Developed an in-memory queue + backup/restore for transmitter requests; prevented duplicate withdrawals, saved $1,000+/day in gas, reduced user errors by 85%.
- Built gamification (“Bungee Balls”) to boost engagement and swap retention.
- Integrated liquidity providers (KyberSwap, 0x) via a modular Dex service enabling multi-chain routing at scale.
- Led migration of 8.5TB+/month CloudWatch logs into a cost-efficient retention architecture; achieved
70% savings ($3,000+/month) while improving accessibility and maintaining compliance. - Optimized relayer and auction services, cutting P95 latency 120ms → 40ms.
Tech: Go, Node.js (TypeScript), Postgres, Redis, MongoDB, AWS, Grafana
- Migrated Trust Wallet Discover to a new Golang microservice supporting 140M users, streamlining dApp listing and moderator validation.
- Reduced infra cost by 94% ($1300 → $78) using S3 + thread-safe in-memory cache.
- Implemented scheduled bulk deletion; cut resource use by 35%.
- Eliminated DB bottlenecks; reduced response times by 78% (P95 85ms → 18ms).
Tech: Go, Node.js (TypeScript), Python, Postgres, Redis/Redis Streams, MongoDB, InfluxDB, AWS
- Delivered a scalable general ledger supporting 2,000+ TPS, optimized via buffered cache tuning, async commit control, and extended checkpointing; scaled to 750K RPM for 20M+ users.
- Architected an event-driven gRPC/HTTP2 crypto exchange (CSX) capable of 100K+ order matches/sec and $1.2M daily trading volume.
- Built a transaction framework using the SAGA pattern to manage 10K+ concurrent transactions.
- Executed the CS Pro trading platform using Socket.IO multiplexing for efficiency and scalability.
- Led a 5-member team to build a token conversion service (C2C) for market makers; reduced operational overhead by 9+ hours/day.
Tech: Node.js (TypeScript), Go, Redis, MongoDB, AWS, Kafka, Traefik, Consul
- Migrated from monolith to microservices backed by a resilient 3-node Kafka–Zookeeper messaging backbone.
- Implemented CI/CD pipelines and monitoring (Prometheus + Grafana).
- Integrated Consul for service discovery and Traefik for load balancing.
Tech: Node.js, Redis, MongoDB, AWS, ActiveMQ
- Engineered six event-driven geospatial microservices using ActiveMQ; ensured 99.9% uptime.
- Reduced GeoJSON fetch time 7000ms → 250ms (96.4%).
- Reduced insertion time 120s → 1.5s (98.7%).
- Languages: Go, JavaScript, TypeScript, Python
- Architecture: Microservices, Queues, REST, gRPC
- Performance: Load balancing, fault tolerance, high availability
- Datastores: PostgreSQL, MongoDB, Redis, InfluxDB
- Cloud/DevOps: AWS, Kubernetes, Docker, Terraform, ArgoCD, GitHub Actions
- bst-nodejs — open-source npm package with 4,000+ downloads - https://github.com/dibyajyotiron/bst-nodejs
- General Ledger — double-entry ledger system with high concurrency - https://github.com/dibyajyotiron/general_ledger_golang
- Best Team Award - (July, 2022) (Coinswitch)
- Go Getter Award - (Nov, 2022) (Coinswitch)
- Annual Awards - (June, 2023) (Coinswitch)
M.C.K.V Institute of Engineering, West Bengal — B.Tech (2013 – 2017) • CGPA: 7.66