Navan is building the next generation of intelligent travel experiences, where loyalty, personalization, and AI agents help travelers make better decisions before, during, and after every trip. As a Senior Software Engineer, you’ll drive the technical vision, architecture, and execution for the highly available, new specialty Travel platform that unlocks new verticals to existing Navan business.
What You’ll Do:
- Architect Core Backend Systems: Design, build, and scale high-performance, fault-tolerant microservices that process millions of travel and expense transactions globally.
Build Micro Front Ends: Design and Build, clean and neat User interfaces for our users.
- Lead Technical Initiatives: Drive complex, cross-functional engineering projects from conception to deployment, making critical architectural trade-offs and setting technical standards for the wider backend organization.
- Optimize Performance & Reliability: Build robust APIs, asynchronous event-driven architectures, and scalable data pipelines with a relentless focus on low latency, high availability, and operational excellence.
- Collaborate Cross-Functionally: Partner closely with product management, engineering leadership, data, and platform teams to translate ambiguous business requirements into cohesive, enterprise-grade technical solutions.
- Raise the Engineering Bar: Champion maintainable code, thoughtful abstractions, and rigorous testing. Act as a force multiplier by mentoring engineers, leading architecture reviews, and fostering a culture of strong operational ownership.
What We’re Looking For:
- 6+ years of software engineering experience building and operating highly scalable, distributed production systems at an enterprise or global scale.
- Deep technical expertise in backend engineering stacks such as but not limited to Java, TypeScript/Node.js, Python, or Go or any VM based language, alongside a strong mastery of engineering fundamentals.
- Exposure to Front End technologies such as React or Angular.
- Extensive hands-on experience designing microservices, complex APIs, event-driven workflows, and working with distributed systems and databases.
- Proven track record of driving technical vision and leading the architecture of large, multi-team projects from inception through to successful production rollouts.
- Exceptional skills in systems observability, and have SLO/SLIs thought through.
- Experience with production debugging, and ensuring the reliability of critical Tier 1 services.
- Product mindset with the ability to balance immediate product delivery with long-term technical health and scalability.
- Experience with travel platforms, fintech, payment processing, or complex financial ledgers is a bonus.
Sr. Product Engineer in London employer: Navan
Join a dynamic and innovative team where your contributions will directly shape the future of our hotel compensation processes. As a Credit Controller in this project-based role, you'll enjoy a collaborative work culture that values autonomy and encourages professional growth, all while making a tangible impact on our multinational operations. With opportunities to optimise processes and build strong relationships across diverse teams, this position offers a unique chance to thrive in a fast-paced environment and advance your career in the hospitality industry.
