Bengaluru, India

Sourabh Kumar

Technical Lead at Daytona Systems (Hello Group). I build and lead backend systems for fintech — Java, Spring Boot, Kafka, MySQL, Docker and BPMN.

8+ yrs
Backend engineering
5+ yrs
At Daytona Systems
27
Endorsed skills
Portrait of Sourabh Kumar

About

I'm a backend engineer based in Bengaluru with close to nine years of experience designing, shipping and maintaining distributed systems. Today I lead a team at Daytona Systems (Hello Group), where I own services built on Spring Boot and Kafka, model business processes in BPMN, and keep them running in Docker against MySQL and MongoDB.

Before Daytona I spent three years at Qapitol QA, working on the Flipkart account — which is where I learned how much of good backend work is really about clear contracts, honest failure modes and tests you can trust.

I like problems that are messy at the domain level rather than just the code level, and I try to leave a team better informed than I found it. I write about what I run into at devpocket.in.

Experience

Daytona Systems India Pvt. Ltd.

Full-time · 5 yrs 9 mos · Bengaluru · On-site

Technical Lead

Apr 2024 — Present
  • Lead backend engineering for fintech services built on Java and Spring Boot.
  • Own event-driven flows on Kafka and orchestrate business processes with BPMN.
  • Set technical direction, review design and code, and mentor engineers on the team.

Senior Java Developer

Jan 2021 — Mar 2024
  • Built and maintained Spring Boot microservices backed by MySQL and MongoDB.
  • Containerised services with Docker and supported them through release and on-call.
  • Worked across the Spring ecosystem — Spring Framework, Spring Boot and 13 related skills.

Qapitol QA

Full-time · 3 yrs 3 mos · Bengaluru · On-site

Software Engineer

Nov 2017 — Jan 2021
  • Delivered backend services in Spring Boot and MySQL on the Flipkart engagement.
  • Partnered closely with QA and automation teams on testable, well-instrumented services.

Silicon Institute of Technology, Bhubaneswar

Engineer’s Degree, Information Technology · 2013 — 2017

Skills

Languages
  • Java
  • Kotlin
  • SQL
Frameworks & architecture
  • Spring Boot
  • Spring Framework
  • Microservices
  • REST APIs
  • BPMN
Data & messaging
  • Apache Kafka
  • MySQL
  • MongoDB
Platform & tooling
  • Docker
  • Git
  • CI/CD
  • IntelliJ IDEA

In their words

I had the pleasure of working closely with Sourabh for three years, and technically, he excels in various technologies. Sourabh possesses a remarkable ability to analyze situations critically, providing well-thought-out solutions.
Shubham Kumar JhaSenior Software Engineer · worked with Sourabh on the same team
He is a gem when it comes to sharing backend knowledge and automation skills. He has this rare quality of being super generous with his knowledge, always ready to help others grow and contribute to the success of the organization.
Bandana BastiaSenior QA Automation Engineer · worked with Sourabh on the same team

Let’s talk.

Open to conversations about backend architecture, fintech platforms, and interesting engineering problems.