Private Cloud Engineer (f/m/d)

GMX, WEB.DE & mail.com; Karlsruhe; Hybrid; EUR 90.000 - 120.000; Vollzeit

Benefits dieser Stelle

Flat hierarchies

Diversity Charter

Extensive training opportunities

TEC-Campus

Wellpass health care

Job bike subsidy

Relocation service

Home office options

Flexible working hours

30 days vacation

Zusammenfassung

GMX, WEB.DE & mail.com is seeking a seasoned Cloud Platform Engineer to expand and optimize our private Kubernetes cloud on bare-metal servers. The role involves developing and maintaining the Kubernetes platform, automating builds and deployments, and building operators to support storage, GPUs, and Istio.

You will also participate in open source work and a 24/7 on-call rotation. We expect several years of experience with Kubernetes, Docker, CI/CD, and infrastructure-as-code, plus strong Linux,

Qualifikationen

• Degree in technical studies or equivalent education.
• Experience with Kubernetes, Docker, CI/CD, infrastructure-as-code.
• Strong automation passion and ability to work in high-traffic, scalable environments.
• Fluent in English; German skills preferred.

Aufgaben

• Continuously expand and optimize our infrastructure with colleagues.
• Develop and maintain Kubernetes platform; enhance 500+ cloud-native services.
• Automate build and deployment with CI/CD.
• Develop Kubernetes operators and extend with storage, GPUs, Istio.
• Contribute to open source and participate in 24/7 on-call.

Kenntnisse

Kubernetes

Docker

CI/CD

Infrastructure as Code

Linux

Bash

Python

Go

Git

Git workflows

English fluency

German skills

Ausbildung

Degree in technical studies or equivalent education

Tools

GitLab CI

Jobbeschreibung

Overview

Are you passionate about everything related to cloud engineering? Are you motivated to build our private on-premises Kubernetes cloud platform on bare-metal servers with over 85,000 CPU cores, servicing our more than 42 million users? Do you want to join us in developing this infrastructure, which is now one of the largest private Kubernetes clouds in the world? Then join our team.

Responsibilities

• Continuously expand and optimize our infrastructure in collaboration with your colleagues.
• Further develop and maintain our Kubernetes platform - help us make our 500+ cloud-native services even better.
• Automate build and deployment processes with continuous integration.
• Develop our own Kubernetes operators and extend our platform with features such as persistent storage, GPUs, and service mesh technology (Istio).
• Work on open source projects and be part of a rotating 24/7 on‑call team.

Qualifications

Your Profile

Do you have a degree in technical studies or a comparable education? Are you familiar with Kubernetes, Python, Prometheus, Puppet, and GitLab CI in a highly scalable, high-traffic environment? Are you passionate about automation and complex tech stacks? Are you a software developer with a high affinity for operations or an operations engineer? Then we are looking forward to your application!

• You have several years of experience with Kubernetes and Docker, CI/CD, infrastructure‑as‑code, and corresponding tools.
• You have strong skills in using Linux and good knowledge of BASH, Python, and/or Go.
• You are very familiar with GIT workflows and feature branches, merge/pull requests, etc.
• You are motivated to learn new things, and your motto is: "Together we are stronger."
• Communication is important to you; you’re fluent in English and preferably also have German skills.

Benefits

• Lived corporate culture: Flat hierarchies, a culture of respect and appreciation, signatories of the Diversity Charter, open communication, and no dress code.
• Wide range of further training: Internal and external training opportunities, LinkedIn Learning, language courses, talent development programs, conferences, and mentoring.
• TEC-Campus: Free choice between Linux, Mac, or Windows, slack days, conferences, lecture series, courses, open-source projects, community meetups, and user groups.
• Active health care: Wellpass, free internal sports and fitness classes, health days, family & care support services, discounts at fitness centers, mental health first responder, fresh fruit and drinks for free.
• Mobility: Subsidy for job bike leasing, job ticket, and relocation service if you live outside Germany.
• Flexible working models: Home office options, flexible working hours, and 30 days of vacation with the option for additional unpaid leave.
• Financial benefits: Corporate benefits, company pension scheme, capital‑forming benefits, occupational disability insurance, and various partner discounts.
• Events: Summer and winter parties, sports tournaments, and team events.