Backend Engineer (Fintech)

Backend Engineer – Core Systems

Company

N26

Conditions

6 days agoBarcelona Onsite Backend Jobs by N26

N26 N26 is a mobile bank that lets users bank, save, and invest from a smartphone app, operating under a full German banking license across European markets. Voltairestraße 8, 10179 Berlin, Germany Projects N26 N N26 Bank About N26 N26 is a digital bank based in Berlin that provides fully mobile banking services to individuals and freelancers across multiple European markets. Users can open bank accounts, send payments, earn interest on savings, and trade stocks, ETFs, and cryptocurrencies , all within a single app. The bank operates under a full German banking license from BaFin, with customer deposits protected up to €100,000 by the German Deposit Protection Scheme. View jobs by N26

Skills

Aws Banking Domain Core Banking Kafka Kotlin Kubernetes Ledgers Microservice Architecture Payments Postgres Security Spring Boot Testing

About the Role

You'll join Bank Core, the team running the systems at the heart of N26 - accounts, ledgers, and the core banking logic every other team builds on. As the team revamps that core, you'll shape decisions that reach across the entire company. You'll work with services written almost exclusively in Kotlin on Spring Boot, deployed on Kubernetes, communicating over Kafka, backed by Postgres, and running on AWS. You'll lean heavily on agentic coding while staying in charge - questioning what the tools produce, reviewing every line, and owning the result. You'll operate with a high degree of autonomy, collaborate closely with your team, and share what you learn.

Requirements

• Solid grasp of microservice architecture
• Comfortable with relational databases, Postgres preferred
• Experience operating in a modern cloud environment, ideally AWS and Kubernetes
• Full professional proficiency in English
• Event-driven systems with Kafka (nice to have)
• Payments, ledgers, or other banking/fintech domain experience (nice to have)

Responsibilities

• Own features end to end on systems that move real money for millions of customers
• Go deep on the banking domain - payments, ledgers, and the rules beneath them - and use that understanding to question and sharpen what we build
• Drive your own priorities within a cross-functional team, and unblock yourself when you hit a wall
• Raise problems early with a proposed solution, instead of working around them
• Ship incremental improvements and share your findings, including at Get Stuff Done Days

Benefits

• Competitive personal development budget
• Work from home budget
• Discounts to fitness & wellness memberships
• Discounts on language apps
• Discounts on public transportation
• Premium subscription on personal N26 bank account, plus subscriptions for friends and family members
• Additional day of annual leave for each year of service
• Relocation package with visa support

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