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Staff Software Engineer - Java
Staff Software Engineer - Java
One2n's logo

Staff Software Engineer - Java

Avinash Poojari's profile picture
Posted by Avinash Poojari
9 - 12 yrs
₹35L - ₹50L / yr
Pune
Skills
skill iconJava
skill iconSpring Boot
Test driven development (TDD)
Domain-driven design


About the role:


We're looking for a Staff Software Engineer who will work across teams to design and implement robust solutions, mentor other engineers, and drive technical excellence. If you care about building and running reliable software systems in production, you'll like working at One2N.


You'll primarily work with our enterprise customers on One-to-N kind problems, where you:

  • Design, build and scale reliable software systems that handle real-world production demands
  • Solve technical challenges around performance bottlenecks and system scaling
  • Build and scale platforms for high throughput and low latency


Key responsibilities:

  • Lead end-to-end architecture and design for large-scale systems and technical initiatives
  • Create and maintain technical documentation through Architecture Design Records (ADR) and Request For Comments (RFC)
  • Participate in architecture reviews and help teams make better technical decisions
  • Drive improvements in system reliability, performance, and scalability
  • Tackle complex technical challenges, especially around bottlenecks and scaling
  • Mentor engineers through 1:1s, code reviews, and technical guidance
  • Design high-throughput, low-latency systems that can scale
  • Contribute to shared libraries, internal SDKs, and developer tooling to improve engineering efficiency


About you:

  • 9+ years of professional programming experience with JVM languages (Java/Scala/Kotlin)
  • Lead by example with high-quality, maintainable, and testable code and good architecture decisions
  • Strong experience with:
  • REST API design and implementation
  • Spring Boot framework
  • Database schema modeling
  • Test-Driven Development (TDD)
  • Domain Driven Design
  • Experience in building microservices architectures
  • Strong testing skills with Unit and Integration testing. Good to have experience with Contract-driven tests.
  • Ability to build reusable libraries/SDKs
  • Brainstorm with product and business teams to prioritize the backlog
  • Experience with Kafka for event-driven architectures to build auto-scaling data processing pipelines
  • Exposure to AWS architecture, particularly with EKS and S3
  • Understanding architecture implications for cost, security, and performance


Leadership & collaboration:

  • Track record of mentoring and coaching engineers
  • Strong written and verbal communication skills
  • Ability to influence without authority


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Shubham Vishwakarma

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About One2n

Founded :
2019
Type :
Services
Size :
20-100
Stage :
Bootstrapped

About

One2N is a boutique technology consulting firm that helps fast-growing companies build and scale high-performance backend systems. As startups evolve from MVP to tens of thousands of users, the engineering challenges change dramatically — and we specialise in solving exactly those problems. Our work ensures that scaling, reliability, and performance never become bottlenecks to growth.


With deep expertise in Site Reliability Engineering, Cloud Infrastructure & DevOps, Data Engineering, and Backend Architecture, we partner with engineering teams to design, build, and operate resilient cloud-native systems. We believe in pragmatic, impact-driven engineering — creating solutions that are robust today and adaptable for tomorrow, so teams can ship faster, stay reliable, and scale confidently.

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One2N builds robust, scalable software systems for startups ready to grow from product-market fit to large-scale adoption.

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