---
title: "Senior Kotlin Engineer (m/f/d) - B2B Sales & Distribution team"
company: "FlixBus"
company_url: "https://www.remjobs.works/companies/flixbus"
url: "https://www.remjobs.works/job/flixbus-senior-kotlin-engineer-m-f-d-b2b-sales-37e1c28e-64a6-4d44-967f-17eb8a9e315e"
apply_url: "https://flix.careers/job/8773532002?gh_jid=8773532002"
workplace: onsite
location: "Munich"
employment_type: unspecified
seniority: senior
role: software-engineering
region: europe
skills: ["aws", "kafka", "kotlin", "kubernetes", "llm", "mysql", "postgres", "sql", "terraform"]
date_posted: 2026-09-02T13:21:24.000Z
first_seen_by_remjobs: 2026-09-15T14:59:46.034Z
---

# Senior Kotlin Engineer (m/f/d) - B2B Sales & Distribution team

**FlixBus** · Munich

Apply: https://flix.careers/job/8773532002?gh_jid=8773532002

## About the role

At Flix, we offer a tech-driven environment where innovation meets real-world impact, with competitive pay, strong growth opportunities, and a culture of collaboration and ownership.

B2B Sales & Distribution team in Demand Division** **builds and operates the backend platform powering Flix's partner-facing ecosystem — including a self-management platform for partners, a back office portal for internal users, and an AI agentic bot supporting partner operations. As a **Senior Kotlin Backend Engineer** (m/f/d), you can make an impact by supporting a significant modernization of backend architecture and working in an AI-native development environment.

#### About the Role

- Design and develop backend services in Kotlin and Spring Boot

- Build and maintain REST APIs used by internal and external partners

- Participate in architectural decisions and technical modernization initiatives

- Improve observability, performance, and reliability of backend systems using DataDog

- Contribute to CI/CD pipelines and cloud infrastructure on AWS and Kubernetes

- Work in and contribute to an AI-native development environment — including AI-integrated code review automation and an internal Claude Code plugin marketplace covering engineering standards: Kotlin/Spring Boot conventions, architectural patterns, testing practices, database guidelines, and team-specific conventions.

#### About You

- 5+ years of professional backend development experience with JVM languages with at least 2 years of commercial experience with Kotlin

- Hands-on experience with Spring Boot

- Experience building and maintaining REST APIs and distributed systems

- Solid SQL knowledge and relational database design, including MySQL and PostgreSQL

- Sound software engineering fundamentals, clean code practices, and familiarity with ORM and persistence layers

- Collaborative and pragmatic, comfortable working in cross-functional Agile teams

- Preferred: AWS, Kubernetes, GitLab CI/CD, Kafka, Terraform, LLM integrations, RAG systems, AI product development, or legacy system migration experience

We recognize that everyone carries a unique set of valuable skills and experiences. If you think you could have an impact even though you don't meet 100% of the requirements, we still encourage you to apply. We want to hear from you!

**What We Offer**

- Travel perks: 12 free Flix vouchers + 12 discount vouchers for friends & family.

- Work from (M)Anywhere: Depending on your role, work from another location for up to 60 days per year.

- Hybrid work model: We are an office-first company, but we offer flexibility to balance work and life.

- Wellbeing support: Access confidential 1:1 counselling, courses, and stress management for yourself and up to four family members.

- Learning & Development: Take advantage of language classes, training courses, and expert-led sessions to grow your skills.

- Mentoring Program: Connect with experienced colleagues to gain insights and accelerate your career. 

To view more local benefits specific to each office location, please check out this link: [Locations - Flix Career](https://flix.careers/locations/)

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**Why Join Flix?**

At Flix, we empower our teams to push boundaries and shape the future of mobility. As we continue to scale globally, we harness cutting-edge technology to make mobility smarter, more sustainable, and more affordable.

If you’re looking for a place where you can drive change and redefine how millions of people travel, Flix is the place where you can lead your journey!

---

Source: FlixBus's own career page, read by RemJobs. Canonical HTML version: https://www.remjobs.works/job/flixbus-senior-kotlin-engineer-m-f-d-b2b-sales-37e1c28e-64a6-4d44-967f-17eb8a9e315e