Navan

Backend Software Engineer

Navan
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5 hours ago
Berlin, GermanyEntry Level / Mid Level

Responsibilities

  • Design and ship backend services using Java and Spring Boot, with TypeScript or Python where appropriate.
  • Own APIs and event-driven flows for money movement, receipts, expense data, and policy decisions.
  • Build and extend LLM-backed agents with tool use, grounding, streaming, retrieval, session memory, and evaluations.
  • Improve document extraction and auto-itemization quality, latency, cost, tax-field coverage, and provider failover.
  • Instrument production systems with observability, quality dashboards, chat satisfaction metrics, and extraction accuracy tracking.
  • Partner with Product and Design on employee, admin, finance, mobile, and unified travel-and-expense AI experiences.
  • Review financial-system changes for idempotency, auditability, permissions, and prevention of silent partial writes.
  • Mentor teammates and write technical designs for distributed teams.

Requirements

  • 1–3 years of software engineering experience, including internships or strong academic or personal projects.
  • Strong computer science fundamentals and backend experience with Java and Spring Boot, TypeScript and Node.js, or Python.
  • Experience with APIs, relational databases, and cloud platforms.
  • 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.
  • Understanding of testing, debugging, and production-quality engineering, along with good communication and willingness to learn.
  • Based in Berlin or London, or willing to relocate.
  • Preferred experience includes Java/Spring Boot, AWS, Docker, Kubernetes, PostgreSQL, Kafka, event-driven architecture, OCR, financial workflows, multi-currency or policy engines, AI agents, or evaluation tools.

Benefits

  • Work location is Berlin or London, with relocation considered.
  • Join a growing Expense Engineering organization working alongside EMEA customers and teams across time zones.
  • Applicants may request human-only evaluation instead of resume review assisted by Metaview.
Navan

About Navan

1,001-5,000 employees

Navan builds an AI-powered travel and expense management platform for businesses, combining online booking, spend controls, automated expense reporting, and corporate cards with 24/7 support. The company sells its T&E software and payments tools to enterprises and high-growth firms, generating revenue from subscriptions, travel transactions, and card interchange. Founded in 2015 and headquartered in Palo Alto, it rebranded from TripActions and serves customers globally.

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