About the Role:

We're looking for a Senior 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:

• Take ownership of system design and architecture for major 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

About You:

• 5 to 8 years of professional experience in Java programming

• 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

• Experience with synchronous and asynchronous systems

• Background jobs, cron jobs, and schedulers

• Experience with Kafka for event-driven architectures

• Exposure to AWS architecture, particularly with EKS and S3

• Understanding architecture implications for cost, security, and performance

• Ability to identify and resolve bottlenecks across the stack

• Experience with APM tools and code profiling

Leadership & Communication:

• Track record of mentoring and coaching engineers

• Strong communication skills

• Ability to influence without authority

Don't worry if you think you're ready with all the technical skills mentioned above. Please apply anyway if you have more than 50% of the skills and a strong desire and intent to work on interesting engineering challenges at scale. At One2N, we provide the necessary mentorship for you to learn and grow in this role.