Senior Backend Engineer: AI-Powered Payments & Scale

Navan; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Navan, a fintech leader in corporate spend and payments, is seeking a Senior Software Engineer (Backend) to architect and scale a next-generation expense management platform for a global user base. You will design high-performance backend services, tackle distributed systems, and collaborate with product and design teams to deliver reliable, scalable solutions.

This role emphasizes ownership, code quality, and ongoing learning within an AI-driven engineering environment, with opportunities to

Qualifications

• 4-6 years of experience building and scaling complex systems
• Proficiency in Java and Spring Boot
• Experience with distributed systems and microservices
• Cloud platforms experience (AWS)
• Product-focused engineering mindset

Responsibilities

• Build at scale core services powering flagship product
• Solve large-scale engineering challenges with reliability and performance
• Own features end-to-end from design to deployment
• Collaborate with global cross-functional teams
• Promote code quality, testing, and documentation
• Stay current with new technologies and trends

Skills

Java

Spring Boot

Microservices

Distributed systems

API design

AWS

AI integration

Code ownership

Cross-functional

Education

Bachelor's or Master's in CS/Engineering

Tools

AWS

Job description

Navan, a fintech leader in corporate spend and payments, is seeking a Senior Software Engineer (Backend) to architect and scale a next-generation expense management platform for a global user base. You will design high-performance backend services, tackle distributed systems, and collaborate with product and design teams to deliver reliable, scalable solutions.

This role emphasizes ownership, code quality, and ongoing learning within an AI-driven engineering environment, with opportunities to