Senior Backend Engineer - Experimentation 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:
- Design, develop, test, deploy and maintain backend services for the Experimentation platform (A/B testing, feature flags, frontend tracking).
- Collaborate with the Tech Lead to architect new features and deliver end-to-end solutions.
- Ensure system reliability, scalability and maintainability through good architecture and testing practices.
- Participate in code reviews, share knowledge and uphold technical standards across the cross-functional team.
- Keep up with trends and propose improvements to tooling and processes.

Requirements:
- Significant production experience with Java or Kotlin and Spring Boot.
- Strong understanding of distributed systems, domain-driven design and testing best practices.
- Experience with cloud architectures, preferably AWS.
- Full professional proficiency in English and effective collaboration skills.
- Nice to have: data engineering experience, event streaming (Kafka) and infrastructure-as-code (Terraform).

Responsibilities

Design, develop, and maintain software for the Experimentation team to enable data-driven decisions through A/B testing and feature flags. Collaborate with the Tech Lead to architect new features and uphold high technical standards across the product.

Requirements

Requires significant experience with Java/Kotlin, Spring Boot, and distributed systems in large-scale production environments. Proficiency in English and experience with AWS cloud architectures are essential.

Key skills

• Java — in 360 other listings on The Stack
• Kotlin — in 251 other listings on The Stack
• Spring Boot — in 147 other listings on The Stack
• Distributed Systems — in 342 other listings on The Stack
• Domain Driven Design — in 4 other listings on The Stack
• AWS — in 802 other listings on The Stack
• Kafka — in 173 other listings on The Stack
• Terraform — in 470 other listings on The Stack
• Software Architecture
• Testing

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 Senior Backend Engineer - Experimentation role still open?

It was posted on 2026-06-12. 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. It is marked on-site.

What skills does this role ask for?

The listing names: Java, Kotlin, Spring Boot, Distributed Systems, Domain Driven Design, AWS, Kafka, Terraform, Software Architecture, Testing.