Lead Backend Engineer – Kotlin & AI

Trust In SODA; Hamburg; Hybrid; EUR 90.000 - 130.000; Vollzeit

Benefits dieser Stelle

30 days vacation + unlimited

Hybrid work

Annual training budget

Mobility allowance

Company pension

EGYM WELLPASS

Trust & autonomy

Zusammenfassung

Trust In SODA in Hamburg is seeking a Team Lead Backend Engineering to shape architecture, develop teams, stay hands-on, and own core B2B services. You will drive architectural decisions and build secure, scalable microservices with real business impact.

You will collaborate with Product Management, coordinate APIs across teams, and push AI-assisted development. The role requires leadership experience and strong Kotlin + Spring Boot skills, plus MongoDB or PostgreSQL, Kubernetes and Kafka.

Qualifikationen

• Leadership experience leading engineering teams.
• Strong knowledge of Kotlin and Spring Boot.
• Experience with microservices, Kubernetes and production systems.

Aufgaben

• 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 and solve complex technical challenges.
• Coordinate APIs and architecture across multiple teams.
• Drive AI-assisted development within the team.

Kenntnisse

Leadership

Kotlin

Spring Boot

REST APIs

Event-driven architecture

AI interest

Microservices

Tools

MongoDB

PostgreSQL

Kubernetes

Kafka

Jobbeschreibung

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.

• 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.