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About the Role

As a Staff Software Engineer on the Expense Platform team in Berlin, you will lead the design and evolution of distributed systems that power the full expense lifecycle. You will partner with engineering leaders, product managers, designers, and cross-functional stakeholders to drive technical strategy, platform scalability, and engineering excellence.

Responsibilities

• Architect, build, and scale backend microservices using Java and Spring Boot
• Lead the design of event-driven systems leveraging Kafka, AWS SQS, and distributed messaging patterns
• Drive technical strategy and long-term platform architecture decisions
• Design and develop high-performance REST APIs and integrations with external financial and payment systems
• Own critical expense workflows including reimbursements, cash advances, mileage, per diem, and approvals
• Improve receipt ingestion, OCR processing pipelines, and automation capabilities
• Ensure platform reliability, scalability, observability, and operational excellence
• Champion engineering best practices including testing, CI/CD, code quality, and incident management
• Mentor and guide engineers across teams through technical leadership and design reviews
• Collaborate cross-functionally with product, operations, and finance teams to deliver impactful solutions
• Identify opportunities to improve engineering velocity, system resilience, and developer experience

Requirements

• 8+ years of professional software engineering experience, with significant backend and distributed systems expertise
• Strong experience building scalable systems using Java, Spring Boot, and microservices architecture
• Deep understanding of distributed systems, asynchronous processing, and event-driven architectures
• Strong experience with Kafka, AWS SQS, or similar messaging technologies
• Expertise in relational databases and data modeling (MySQL or PostgreSQL)
• Experience designing and operating cloud-native applications on AWS
• Proven track record leading large technical initiatives and influencing engineering direction
• Strong understanding of system reliability, observability, performance optimization, and scalability
• Experience with CI/CD pipelines, automated testing, and modern software delivery practices
• Ability to mentor engineers and drive technical excellence across teams
• Strong communication and collaboration skills with both technical and non-technical stakeholders
• Passion for building platforms that enable speed, innovation, and exceptional customer experiences

Skills

• Java
• Spring Boot
• Microservices architecture
• Distributed systems
• Asynchronous processing
• Event-driven architectures
• Kafka
• AWS SQS
• Relational databases
• Data modeling
• MySQL
• PostgreSQL
• AWS
• Cloud-native applications
• CI/CD pipelines
• Automated testing

Location

• Berlin

Work Type

• Onsite

Experience Level

• Staff
• 8+ years

Benefits

• Healthcare coverage
• Insurance offerings
• Wellness resources
• Retirement savings programs
• Equity plans
• Flexible time off
• Country-specific holidays
• Paid parental leave
• Connectivity support
• Commuting support
• Mental health resources
• Travel-related perks

About the Company

• Navan is the global AI-powered business travel and expense platform that makes travel easy for frequent travelers.
• Navan delivers an intuitive experience travelers love and finance teams rely on.
• Our team is our competitive edge — a high-performance group of smart, driven people committed to winning together.
• Navan provides 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.

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.
• 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.