Sr. Software Engineer (Backend )

At Navan, our mission is to power the in-person connections that move people, ideas and businesses forward. We help our travelers focus on being there, not getting there and our Global Operations and Service team is central to this mission!

As a member of our quickly growing Global Operations and Service team, you will be responsible for directly supporting our users’ travel needs. As owners of customer satisfaction, your role is to solve issues, communicate effectively, and collaborate with internal teams to remove any barriers for the traveler - all while providing a best-in-class customer experience. As the front line of our business, you will have a unique opportunity to provide regular feedback to our product, design and engineering teams as they work towards continually improving our customer facing and internal platforms. This is an exciting role where you will have a direct impact on our day to day operations, traveler experience and product development!

We are looking for a Senior Backend Engineer to join the Expense Platform team. You will build and scale distributed systems that power the full expense lifecycle, including expense creation, approvals, and reimbursements.

What You’ll Do

• Build and maintain backend microservices using Java and Spring Boot


• Design and implement event-driven systems (Kafka, AWS SQS)


• Develop REST APIs and integrate with external financial systems


• Work on expense workflows (reimbursements, cash advances, mileage, per diem)


• Build and improve receipt ingestion and OCR pipelines


• Ensure system reliability, performance, and scalability


• Write and maintain unit and integration tests

What We’re Looking For

• 6+ years of backend engineering experience


• Strong experience with Java, Spring Boot, and microservices architecture


• Solid SQL knowledge and database design (MySQL or PostgreSQL)


• Experience with event-driven systems (Kafka, SQS, or similar)


• Familiarity with AWS services (S3, SQS, SES, etc.)


• Experience with CI/CD and Git workflows


• Strong testing practices (unit and integration testing)


• You see engineering velocity as a strategic differentiator. You are driven by the goal of making our engineering org so fast and reliable that we out-innovate the market.