Backend engineer, Bengaluru. I spent 3.5 years on the trading & settlement platform at Fidelity International, where I owned the redesign of a synchronous order-execution pipeline into an event-driven Kafka + PostgreSQL system handling ~5M transactions/day.
Currently on a career break, spending the time going deeper on distributed systems and starting to contribute to open source — see below.
- Event-driven backends — Kafka consumer groups, exactly-once processing under at-least-once delivery, idempotency via database constraints, safe behavior under rebalancing and instance failure.
- Performance & correctness under load — diagnosing production contention (hot keys, insert-retry storms), jittered backoff, write batching, cutting p95/p99 latency with measured before/after numbers.
- Pragmatic design — strategy-pattern rule chains, dropping external coordination dependencies when a simpler primitive is provably correct.
At Fidelity I also mentored two engineers onto the platform and drove team adoption of AI-assisted development while holding generated code to the same review bar as everything else.
I'm new to open source and treating it as a real commitment, not a drive-by. I'm looking for Java / Spring / distributed-systems projects where I can pick up non-trivial issues over time. Interests:
- Apache Kafka / Spring Kafka, messaging and streaming infrastructure
- Redis-backed caching, rate limiting, idempotency
- Developer tooling and testing infrastructure for backend services
- Documentation and onboarding — I like making systems approachable for the next contributor
If you maintain something in that space and have a good first issue that needs
an owner, I'd genuinely like to hear about it.
Languages: Java (8 / 11 / 17 / 21), Python Backend: Spring Boot, J2EE, JUnit, Cucumber Distributed systems: Kafka, RabbitMQ, Redis, PostgreSQL, MongoDB, event-driven architecture DevOps: AWS, Docker, Kubernetes, Jenkins, GitHub Actions Frontend (working knowledge): React, TypeScript
| Project | What it is |
|---|---|
| ThrottleX | High-performance distributed rate limiter — Spring Boot + Redis |
| ai-code-assistant | Async LLM-backed code review service — Spring Boot, Kafka, Redis, SSE |
| asynchronous-order-system | Event-driven order pipeline, modeled on real settlement-system patterns |
| java-spring-meme-generator | A lighter one — create, customize, and share memes with Spring Boot |
- 🥇 Global Rank 302 / 38,000+ (top 0.8%) — LeetCode Biweekly Contest 190, Aug 2026
- 🧩 500+ DSA problems solved across platforms
- ☁️ AWS Certified Cloud Practitioner
- 🏆 2nd place, Fidelity Graduate Hackathon 2022
- LinkedIn: akshat-vyas
- Happy to talk distributed systems, Kafka, backend design, or how to get started contributing to a Java project.