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Backend Engineer - AI Developer Platform

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N26

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Location:
Spain , Barcelona

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

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Job Description:

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.

Job Responsibility:

  • Help build the internal AI platform used by engineering teams at N26
  • 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
  • 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
  • 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
  • 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

Requirements:

  • Backend engineer who enjoys building platforms and developer-facing systems
  • 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 we offer:
  • 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
  • Access to a Premium subscription on your personal N26 bank account
  • 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
  • A relocation package with visa support for those who need it

Additional Information:

Job Posted:
March 26, 2026

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