Lead Backend Engineer - Conversational Banking at N26

✨ The Stack take on this N26 job

• 🏢 N26 has 139 jobs here, 136 with visa sponsorship see all
• 🛂 Visa: Highly Qualified Professional permit. Education: Higher education degree 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:
- Lead technical roadmap and work with PMs and EMs to prioritise architecture, reduce debt and manage dependencies.
- Architect, build and operate high-availability, high-performance microservices (Java/Kotlin + Spring Boot) that support conversational banking features.
- Integrate AI capabilities and automation (foundational models, pipelines) into backend systems to augment back-office workflows.
- Promote engineering best practices: TDD/BDD, clean code, CI/CD, observability and scalable deployment patterns.
- Measure, monitor and optimise distributed systems for reliability, latency and capacity; drive post-incident improvements.
- Mentor engineers, run code reviews, document designs and participate in recruitment and engineering culture initiatives.

Requirements:
- 5+ years building complex distributed backend systems in Java and/or Kotlin with Spring Boot.
- Strong system design skills, experience with DDD, hexagonal/event-driven architectures and REST API design.
- Proven use of testing-first workflows, observability tools and CI/CD pipelines; production PostgreSQL performance experience.
- Familiarity with cloud platforms (AWS) and container orchestration (Kubernetes) is preferred.
- Experience using AI coding agents responsibly to accelerate delivery without compromising code quality.
- Excellent communication, leadership and mentoring skills; bonus for Python or generative-AI product experience.

Responsibilities

You will architect and maintain high-performance microservices while leading cross-functional teams to deliver robust banking solutions. Additionally, you will integrate AI technologies and mentor engineers to foster a culture of technical excellence and continuous improvement.

Requirements

Candidates must have 5+ years of experience in distributed systems using Java or Kotlin and Spring Boot. A strong background in API design, database performance, and modern engineering practices like TDD and CI/CD is required.

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
• Microservices — in 236 other listings on The Stack
• Distributed systems — in 342 other listings on The Stack
• API design — in 192 other listings on The Stack
• PostgreSQL — in 296 other listings on The Stack
• CI/CD — in 630 other listings on The Stack
• AWS
• Kubernetes
• Domain-driven design
• Clean code
• TDD
• Observability
• Generative AI
• Mentoring

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

• N26 has 138 other listings on The Stack, 135 of them marked as offering visa sponsorship.
• 76 visa-sponsored jobs in Spain 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 Lead Backend Engineer - Conversational Banking role still open?

It was posted on 2026-08-24. 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 Spain. It is marked on-site.

What skills does this role ask for?

The listing names: Java, Kotlin, Spring Boot, Microservices, Distributed systems, API design, PostgreSQL, CI/CD, AWS, Kubernetes, Domain-driven design, Clean code, TDD, Observability, Generative AI, Mentoring.