Sr. Backend Software Engineer, Fraud Risk Platform
Navan
Navan is seeking a Sr. Backend Software Engineer to join our Fraud Strategy team and help build a scalable, extensible risk platform to mitigate fraud across our Travel business. This engineer will be embedded within the business unit and will partner directly with data scientists and fraud strategy leads to create robust, real-time fraud mitigation solutions that protect both Navan and its customers.
You will lead the design and development of risk-centric services spanning onboarding, booking, and post-booking activities such as chargebacks and dispute management. Your work will power real-time decision engines, including third-party vendor integrations, feedback loops into machine learning models, and manual review tools that close the fraud detection and prevention lifecycle.
This hands-on role requires strong technical depth, the ability to operate independently, and a collaborative mindset to translate business needs into high-reliability applications running at scale in the cloud.
What You’ll Do:
- Architect and build extensible and scalable microservices to support real-time fraud detection and mitigation across the onboarding and booking flows for the travel customers.
- Work closely with Fraud Strategy Data Scientists to identify data needs, enabling real-time data ingestion and transformation of real-time and offline signals into the risk engine.
- Stand up and maintain a case management system to support manual decisioning and integrate outcomes back into model training pipelines.
- Develop integrations with third-party fraud vendors, ensuring their signals are correctly ingested and processed in the risk platform.
- Build observability dashboards to monitor performance, risk coverage, and system reliability.
- Own end-to-end CI/CD pipelines, including production deployment and best practices for release management.
- Ensure high reliability and performance in a cloud-native environment (AWS or similar).
- Serve as the engineering point person inside the business unit and help align risk mitigation engineering efforts with the broader product and engineering organization.
- Promote engineering excellence through code reviews, architecture discussions, and working with other developers from the cross-functional teams.
What We’re Looking For:
- 6+ years of experience as a backend software engineer with strong backend architecture skills.
- Deep experience with Java, Spring Boot, and microservices architecture.
- Experience working with real-time data ingestion into the risk engines in production.
- Familiarity with cloud-native infrastructure, especially AWS, and containerized services using Docker and Kubernetes.
- Strong understanding of CI/CD best practices and experience with GitHub Actions (or similar), deployment pipelines, and observability tools.
- Experience designing or integrating with third-party APIs, especially fraud vendors and data providers.
- Ability to work autonomously within a business unit and drive alignment across data science, product, and strategy teams.
- A collaborative and business-minded engineer who understands the “why” behind risk mitigation efforts and is motivated by impact.
Nice to Haves:
- Proficiency in JavaScript/TypeScript and React for building full-stack applications is preferred but not required.
- Prior experience building case management systems or internal tools for manual operations.
- Exposure to fraud prevention, payments, trust & safety, or similar risk domains.
- Experience with building ML model feedback loops or event-driven architectures.
- Familiarity with Infrastructure as Code (e.g., Terraform).
- Experience working on small, high-impact teams embedded in cross-functional environments.
The posted pay range represents the anticipated low and high end of the compensation for this position and is subject to change based on business need. To determine a successful candidate’s starting pay, we carefully consider a variety of factors, including primary work location, an evaluation of the candidate’s skills and experience, market demands, and internal parity.
For roles with on-target-earnings (OTE), the pay range includes both base salary and target incentive compensation. Target incentive compensation for some roles may include a ramping draw period. Compensation is higher for those who exceed targets. Candidates may receive more information from the recruiter.
About Navan
Navan (Nasdaq: NAVN) is the leading all-in-one business travel, payments, and expense management platform that makes travel easy for frequent travelers. From finding flights and hotels to automating expense reconciliation, with 24/7 support along the way, Navan delivers an intuitive experience travelers love and finance teams rely on. See how Navan customers benefit and learn more at navan.com.
Culture of Excellence
Our team is our competitive edge — a high-performance group of smart, driven people committed to winning together. This dedication to excellence is why we’ve been recognized as a Best Place to Work by Built In (2023–2026), a G2 Best Global Software Company (2025-2026), a CNBC Disruptor 50 (2022-2025), and a Forbes Fintech 50 (2022-2025). At Navan, we provide an environment where top talent excels, offering the autonomy and fast-paced trajectory needed to build a defining career and do the best work of your life.
Our Benefits
Navan offers a comprehensive benefits program designed to support your well-being, financial security, and life outside of work. Our benefits, thoughtfully tailored by country to meet local needs, include healthcare coverage, insurance offerings, and wellness resources for you and your family.
We support long-term financial growth through retirement savings programs and opportunities to participate in our equity plans, so you can share in Navan’s success. To promote balance, we offer flexible time off, country-specific holidays, and paid parental leave for all new parents. Additional benefits include connectivity and commuting support, mental health resources, and exclusive travel-related perks. Wherever you’re based, our benefits evolve with you.
Workplace Policy
Navan believes in the value of in-person connections, whether that’s sitting down to have lunch with one another, taking a walking 1:1, or collaborating in a room together. The connections forged through face-to-face interactions improve company culture and drive business results. Navan invests in global office spaces — in the U.S., Europe, and Asia, among others — that feel welcoming. In-office perks such as company-provided lunches and happy hours create a strong team environment to help you do your best work. Our employees work from the office four days a week. Please expect this policy for all roles that are tied to an office.
Equal Opportunity
Navan is an equal opportunity employer. We make all employment decisions based solely on merit. We provide equal employment opportunity to all applicants and employees without discrimination on the bases of race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics. We prohibit any such discrimination or harassment. This policy applies to all terms and conditions of employment, including hiring.
Accommodations
Navan complies with the Americans with Disabilities Act (ADA), as amended by the ADA Amendments Act, and all applicable state or local law. Navan will reasonably accommodate qualified individuals with a disability in connection with applications for employment as required by law.
If you need any assistance or accommodations due to a disability, you are welcome to email us at [email protected].
Candidate Privacy Notice
Please review Navan's Candidate Privacy Notice here.
Job Search Best Practices
We have been made aware of recruitment scams involving fraudulent attempts to lure job seekers into sending money or personal information in return for fake job offers or coerce them into purchasing equipment by electronic funds transfer (Zelle, Venmo, etc.) Legitimate Navan recruiters will never ask for money in any recruitment or onboarding activities. All available job openings at Navan will be posted on Navan’s website and all Navan recruiters will be reachable through an email address ending in “@navan.com” or “@navan.tech” or "@talent.navan.com".