Navan - Junior Backend Software Engineer
Requirements
• 1–3 years of software engineering experience, including internships or strong academic/personal projects. • 1–3 years of software engineering experience • Strong computer science fundamentals and backend experience in Java/Spring Boot, TypeScript/Node.js or Python. • Java is preferred but not mandatory if you have strong transferable backend skills. • Experience with APIs, relational databases and cloud platforms. Kafka or similar messaging systems are a plus. • Exposure to AI tools or projects involving LLMs, chatbots, RAG, document processing or AI-assisted development. • Interest in financial or workflow-heavy products such as payments, expenses, accounting or tax. • Good communication, willingness to learn and understanding of testing, debugging and production-quality engineering. • Based in Berlin or London, or willing to relocate. • Java/Spring Boot • AWS, Docker or Kubernetes • OCR, financial workflows, multi-currency or policy engines • AI agents or evaluation tools
Responsibilities
• Design and ship features in backend services (Java and Spring Boot) and/or web (TypeScript), with AI services in Python or TypeScript where that is the right fit • Own APIs and event-driven flows that move money, receipts, and policy decisions at company scale • Build or extend LLM-backed agents: tool use, grounding, streaming, session memory, retrieval, and evals — not one-off prompt demos • Improve document extraction and auto-itemization: quality, tax fields, latency, cost, and provider failover • Instrument production: observability, quality dashboards, chat satisfaction, extraction accuracy vs. human correction • Partner with Product and Design on employee, admin, and mobile AI surfaces (including unified travel-and-expense chat) • Review for correctness in financial systems: idempotency, auditability, permissions, no silent partial writes • Mentor others and write designs that teams across time zones can implement from
Benefits
• Expense is where Navan's "AI-powered T&E" claim has to be true: receipts, chat, and admin agents sit on the same ledger as reimbursements and accounting close. Berlin and London put you next to EMEA customers who care about VAT, per diem, and audit — and next to a growing Expense engineering presence, not a satellite office doing overflow tickets. • 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 • 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 • Equal Opportunity
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