Backend Software Engineer with 16+ years of experience building and operating large-scale distributed systems in fintech and digital assets.
I focus on designing reliable, secure, and scalable backend platforms, with particular interest in systems that operate under high correctness, availability, and regulatory constraints.
- Backend and distributed systems in fintech and crypto
- Customer identity, onboarding, and lifecycle platforms
- Digital asset platforms (wallets, staking, settlement, reconciliation)
- Cloud-native systems with strong operational guarantees
I typically work end-to-end: architecture → implementation → production operations → long-term ownership.
- Languages: Kotlin, Java, Rust
- Backend: Spring Boot, REST, gRPC (Protobuf)
- Data: Postgres, Snowflake
- Cloud & Platform: AWS, Kubernetes, Terraform
- Data Platform: dbt
- Systems concerns: scalability, fault tolerance, observability, security
- LinkedIn: https://www.linkedin.com/in/samujjal/
Always happy to discuss distributed systems, backend architecture, and engineering at scale.