Backend Engineer - AI Developer Platform
N26BarcelonaPosted 24 March 2026
Job Description
About the opportunity
At N26, we are building the internal AI platform that will power the next generation of engineering productivity.
Within our Developer Experience (DevEx) organization, a dedicated team is responsible for building AI products used by engineers across the company. From the AI Gateway that connects our systems to multiple LLM providers, to the Skills Marketplace that allows teams to publish reusable AI capabilities, we are creating the foundations for scalable AI adoption across engineering.
We are looking for software engineers who enjoy building platforms and internal products, and who want to contribute to shaping how AI is integrated into software development workflows.
In this role, you will:
You will help build the internal AI platform used by engineering teams at N26. This includes:
AI Gateway
Developing the core services that connect internal tools to AI providers
Implementing routing, cost controls, security policies, and observability
Building tools that make AI capabilities easy and safe to consume
Skills Marketplace
Contributing to a platform where teams can publish and reuse AI skills
Supporting discovery, versioning, and governance of AI capabilities
Enabling composability across different AI-powered tools
AI Developer Tools
Building services that enable AI-assisted workflows for engineers
Integrating AI capabilities with internal developer platforms
Supporting experimentation and iteration on new AI-enabled developer experiences
You will also be:
Building products that power the internal AI platform
Designing and implementing solutions used by developer tools and engineering teams
Collaborating with platform and DevEx teams to integrate AI capabilities into existing systems
Contribute to scalable, reliable, and secure AI infrastructure
Work closely with experienced engineers to deliver production-ready solution
What you need to be successful:
Background:
You are a backend engineer who enjoys building platforms and developer-facing systems.
Skills:
Solid experience building software products written in languages such as Kotlin, Go, Python, or TypeScript
Experience working with APIs and distributed systems
Interest in developer platforms, tooling, or internal products
Curiosity about AI and how it can improve software development workflows
Strong collaboration skills and the ability to work within a highly technical team
Curiosity and willingness to learn new things
Data driven mindset
Nice to have:
LLM integrations or AI platforms
Developer tooling or internal platforms
Observability and platform infrastructure
Cloud-native systems and modern backend architectures
What’s in it for you:
Accelerate your career growth by joining one of Europe’s most talked about disruptors 🚀.
Employee benefits that range from a competitive personal development budget, work from home budget, discounts to fitness wellness memberships, language apps and public transportation.
As an N26 employee you will have access to a Premium subscription on your personal N26 bank account. As well as subscriptions for friends and family members.
Additional day of annual leave for each year of service.
A high degree of autonomy and access to cutting edge technologies - all while working with a friendly team of peers of diverse nationalities, life experiences and family statuses.
A relocation package with visa support for those who need it.
Who we are
N26 has reimagined banking for today’s digital world. Technology and design empower everything we do and it’s how we are building the global banking platform the world loves to use.
We've eliminated physical branches, paperwork, and hidden fees for an elegant digital experience and supreme savings. Giving people the power to live and bank their way is what gets us out of bed in the morning and inspires the work that we do.
We are headquartered in Berlin with offices in multiple cities across Europe, including Vienna and Barcelona, and ... (truncated, view full listing at source)
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