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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer (Backend) - **Company:** Navan - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Java (Programming Language), Artificial Intelligence, Amazon Web Services, Application Integration Architecture, Software Quality, Distributed Systems, Java Virtual Machine (JVM), Systems Architecture, Spring-boot, Backend, Information Technology, Api Design, Microservices - **Published:** September 4, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=b6054f93079724ca ## About the Role * 4-6 years of experience building and scaling complex systems in fast-paced, high-growth, or large-scale environments (open to exceptional candidates with less experience). * Java & Spring Mastery: Proficiency in Java and Spring Boot, with a solid understanding of JVM performance and optimization. * AI Integration: Proven experience leveraging AI models and AI-driven development to build intelligent, automated features and enhance engineering productivity. * Systems Architecture: Strong experience with distributed systems, microservices, and API design, including practical expertise with AWS or other cloud platforms. * Product Experience: Hands-on experience developing and maintaining consumer-facing or core business products at scale. * Ownership Mentality: A record of delivering production-quality, maintainable code, and supporting features post-release through monitoring and troubleshooting. * Cross-Functional Collaboration: Collaborative team player able to work effectively with global, cross-functional partners. * Technical Excellence: Commitment to engineering best practices in testing, documentation, scalability, and code quality, coupled with a passion for tackling technically demanding and customer-impacting challenges. * Education: Bachelor's or Master's degree in Computer Science, Engineering, or a related field. Bonus Qualifications * Fintech or payments processing experience is a plus. * Comfort with financial or workflow-heavy domains: expenses, payments, ERP, tax, or similarly high-stakes data. ## Description Navan has transformed the corporate travel, payment, and expense landscape by consistently prioritizing user needs. We are seeking a Senior Software Engineer (Backend) for our AI-first engineering team to drive the architecture of a next-generation corporate expense management platform. In this role, you will scale backend systems powering global commerce, payments, issuing platforms, and payment/money ledgers, while building infrastructure for automated policy management, granular admin controls, and seamless accounting system integrations. What You'll Do * Build at Scale: Design and develop robust, high-performance features and core services that support the company's flagship product and serve a global customer base. * Solve Complex Problems: Apply deep technical expertise and creativity to address large-scale engineering challenges, driving improvements in reliability, performance, and user experience. * Deliver Customer-Facing Solutions: Take end-to-end ownership of features-from design and development to deployment and operational support-ensuring exceptional quality and value for users. * Collaborate Across Teams: Work effectively as part of a global, cross-functional team, partnering with fellow engineers, product managers, designers, and business leaders to deliver impactful solutions and elevate team performance. * Contribute to Engineering Culture: Champion best practices in code quality, scalability, documentation, monitoring, and testing, fostering a culture of technical excellence, collaboration, and continuous improvement. * Learn and Grow: Stay engaged with new technologies and industry trends, bringing a growth mindset and a passion for delivering elegant solutions to complex problems. ## Related Videos - [API Design - Getting Started](https://www.wearedevelopers.com/videos/33-api-design-getting-started) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Rest API Antipatterns](https://www.wearedevelopers.com/videos/100208-rest-api-antipatterns) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe)