Navan

Runs business travel and expense management

Senior Product Engineer

Full-Stack EngineeringConfirmed live in the last 24 hours

Full-timeLondon, UKNo salary listedIn-person

About the Job

Requirements

At least 6 years of software engineering experience building and operating highly scalable, distributed production systems at enterprise or global scale.
Deep technical expertise in backend engineering stacks such as Java, TypeScript/Node.js, Python, Go, or another virtual-machine-based language, alongside strong engineering fundamentals.
Exposure to front-end technologies such as React or Angular.
Extensive hands-on experience designing microservices, complex APIs, and event-driven workflows, and working with distributed systems and databases.
A proven track record of driving technical vision and leading the architecture of large, multi-team projects from inception through successful production rollouts.
Strong systems observability skills and an understanding of service-level objectives and service-level indicators.
Experience with production debugging and ensuring the reliability of critical Tier 1 services.
A product mindset and ability to balance immediate product delivery with long-term technical health and scalability.

Responsibilities

Design, build, and scale high-performance, fault-tolerant microservices that process millions of travel and expense transactions globally.
Design and build micro front ends and user interfaces.
Drive complex, cross-functional engineering projects from conception to deployment, making architectural trade-offs and setting technical standards for the wider backend organization.
Build robust APIs, asynchronous event-driven architectures, and scalable data pipelines, focusing on low latency, high availability, and operational excellence.
Partner with product management, engineering leadership, data, and platform teams to translate ambiguous business requirements into cohesive technical solutions.
Champion maintainable code, thoughtful abstractions, and rigorous testing; mentor engineers, lead architecture reviews, and foster strong operational ownership.

Desired Qualifications

Experience with travel platforms, fintech, payment processing, or complex financial ledgers.

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.

Navan uses AI-assisted Automated Employment Decision Tool (Metaview) to assist with evaluating resumes against job qualifications for this role. All final decisions are made by human recruiters and hiring managers.

Human oversight: Metaview does not automatically reject candidates or make final hiring decisions. Our recruiters and hiring managers review all outputs and make the final hiring decision regarding every application.

Your rights: If you prefer to have your application reviewed without AI assistance, you may request a human evaluation by entering your email here. Your decision to do so will not affect how your candidacy is evaluated.

Please refer to our Candidate Privacy Notice for more information about our processing of personal data, and your rights.

Requirements at a Glance

Experience Level: Senior

Benefits

Flexible Vacation: Take time off when you need it, just work with your manager.
Healthcare: Medical, dental, and vision for you and your family.
Commuter benefits: Pre-tax transit dollars, $70 a month to ease your commute.
Parental leave: All parents (birthing and non-birthing) are eligible for paid leave.
Health and Wellness: Annual wellness stipend and access to a full spectrum of resources.
Fuel for Connection: We provide in-office snacks and lunches*, fostering community and in-person connections.
Pet Friendly: Pet insurance with preferred rates and dog friendly offices*.
401k: We care about your future and offer a 401k retirement plan program and company match.
IATAN: Employees can register and receive access to thousands of travel related discounts.
Connectivity Allowance: We support our employees ability to work seamlessly and confidently while from home and offer a bi-weekly stipend
Learning & Development: Annual Learning and Development allowance to propel professional growth

About the Company

Navan

Runs business travel and expense management

Navan runs a business travel and expense platform for companies, combining trip booking with tools that let finance teams track and control employee spending. Travelers search flights, hotels, trains, and rental cars through its website or mobile app, while administrators set booking limits and approval rules. Its expense software captures receipts, categorizes purchases, reimburses employees, and sends records to accounting systems, keeping travel and finance work in the same service. The company earns usage fees from its travel and payments business alongside software subscriptions. Navan was founded in 2015 and is headquartered in Palo Alto, California.

Company size: 1,001-5,000
Company stage: IPO
Headquarters: Palo Alto, CA
Founded: 2015

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