Backend Engineer - AI Developer Platform at N26

✨ The Stack take on this N26 job

• 🏢 N26 has 139 jobs here, 136 with visa sponsorship see all
• 🛂 Visa: EU Blue Card. Minimum salary: €50,700 a year guide
• 💡 No salary shown. Ask N26 if it is above the minimum.

Updated 2026-11-05, from our data and official sources.

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About the role

Responsibilities:
- Build and maintain the internal AI platform used by engineering teams (AI Gateway, Skills Marketplace, developer tools).
- Implement AI Gateway features: provider routing, cost controls, security policies, observability, and safe consumption patterns.
- Contribute to Skills Marketplace: publishing, discovery, versioning, governance, and composability of AI capabilities.
- Develop AI-assisted developer tooling and integrate AI capabilities into internal dev platforms.
- Collaborate with DevEx and platform teams to design, test, and deliver production-ready, scalable, and secure infrastructure.

Requirements:
- Proven backend engineering experience building platforms or internal developer-facing systems.
- Proficiency in one or more of Kotlin, Go, Python or TypeScript and experience with APIs and distributed systems.
- Experience or strong interest in observability, security controls, cost management, and production-grade services.
- Collaborative, product-focused mindset with curiosity about LLM integrations and how AI improves developer workflows.
- Comfortable working in cross-functional teams; experience with cloud-native architectures and developer tooling is a plus.

Responsibilities

The engineer will build the internal AI platform used by engineering teams, focusing on developing the AI Gateway for connecting to LLM providers, implementing routing, cost controls, and security policies. Responsibilities also include contributing to the Skills Marketplace for publishing reusable AI capabilities and building developer tools for AI-assisted workflows.

Requirements

Candidates must be backend engineers who enjoy building platforms and developer-facing systems, possessing solid experience with languages like Kotlin, Go, Python, or TypeScript, and familiarity with APIs and distributed systems. A strong interest in developer platforms, AI, and excellent collaboration skills are essential for success in this role.

Key skills

• Backend Engineering — in 127 other listings on The Stack
• Platform Building — not in any other listing on The Stack
• Internal Products — not in any other listing on The Stack
• Kotlin — in 251 other listings on The Stack
• Go — in 230 other listings on The Stack
• Python — in 1200 other listings on The Stack
• TypeScript — in 467 other listings on The Stack
• APIs — in 34 other listings on The Stack
• Distributed Systems
• Developer Platforms
• Tooling
• AI Integration
• Collaboration
• Observability
• Security Policies
• LLM Integrations

On The Stack (as of 2026-11-05)

• N26 has 138 other listings on The Stack, 135 of them marked as offering visa sponsorship.
• 166 visa-sponsored jobs in Germany on The Stack, posted in the last 60 days.
• 68 visa-sponsored backend engineer jobs in Europe on The Stack, posted in the last 60 days.

Frequently asked questions about N26

Is this Backend Engineer - AI Developer Platform role still open?

It was posted on 2026-03-24. Listings more than 30 days old may no longer be active, so check N26's site before applying.

Does N26 offer visa sponsorship?

This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on N26's site.

Where is this role located?

The listing gives the location as Berlin, Germany.

What skills does this role ask for?

The listing names: Backend Engineering, Platform Building, Internal Products, Kotlin, Go, Python, TypeScript, APIs, Distributed Systems, Developer Platforms, Tooling, AI Integration, Collaboration, Observability, Security Policies, LLM Integrations.