Senior Software Engineer (Backend)

Navan

London, UK today
Workplace
On-site
Location
London, UK
Who can apply
Based in the United Kingdom: you usually need the right to work there

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About the role

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.

What We're Looking For

* 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.

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About Software Engineer jobs in the United Kingdom

Open jobs
1,173 open Software Engineer jobs in the United Kingdom, 133 of them posted in the last 7 days. See all Software Engineer jobs in the United Kingdom
Typical advertised pay
£88,000 – £135,000 a year for the middle half of the 131 job ads from 50 employers that state a salary in British pounds (median £108,000). This is base pay as advertised, not total compensation. Software Engineer salary in the United Kingdom
Skills the job ads ask for most
  • Python 48%
  • CI/CD 36%
  • Code review 31%
  • AWS 31%
  • Kubernetes 29%
  • TypeScript 26%

Share of the 458 newest postings for the role that name each skill. Resume keywords for Software Engineer jobs

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