Team Leading Backend Engineer – Kotlin & AI

Team Leading Backend Engineer – Kotlin & AI
What do e-commerce, millions of daily users and pretty ambitious tech challenges have in common? Exactly where you come in.
Our client is an established digital e-commerce company with around 350 employees and an international focus. The business model has long been more than a classic online shop: it’s about digital products, broad reach, complex platforms and the question of how a good idea becomes a product that really works in everyday life.
Here, the security of a successful company meets the speed of a modern tech environment. New business models are being developed, start-ups are supported and technologies are being explored that will help shape the digital business of tomorrow.
For you, that means: You won’t be handed a finished tech world that only needs to be managed. You can help shape the architecture, develop teams, use AI in meaningful ways and build things that make a visible difference.
Benefits
30 days of vacation plus unlimited additional vacation days
Hybrid working and workation opportunities - generally 3 days per quarter in the office, travel expenses are covered
€1,500 annual training budget
€30 monthly mobility allowance plus bike leasing
Company pension scheme
EGYM WELLPASS for €25 personal contribution per month
A lot of trust, personal responsibility and freedom to make decisions
Your responsibilities
Lead and develop a product-oriented backend engineering team
Take responsibility for core B2B platform services
Make and drive architectural decisions together with the team
Stay hands-on, write code yourself and solve complex technical challenges
Take responsibility for microservices based on the “You build it, you run it” principle
Develop secure, scalable and maintainable solutions with real business impact
Work closely with Product Management and internal stakeholders
Coordinate APIs, interfaces and architecture across multiple teams
Drive AI-assisted development and new engineering approaches within the team
Your profile
Experience leading and developing engineering teams
Empowering leadership style: trust instead of micromanagement
Very good knowledge of Kotlin and Spring Boot
Experience with MongoDB and/or PostgreSQL
Confident working with microservices, Kubernetes and production systems
Experience with REST APIs and event-driven architectures, ideally Kafka
Interest in AI-assisted development; experience with agentic AI practices is a plus
If you’re looking for a job where “Team Lead” doesn’t mean distributing tickets and moderating meetings, but rather truly bringing people, technology and product together, you should take a closer look at this role.

Work arrangement
Yes