(Senior) DevOps Engineer (m/f/x)

Aerticket Group; Berlin; Vor Ort; EUR 80.000 - 110.000; Vollzeit

Zusammenfassung

Aerticket Group is seeking an experienced DevOps Engineer in Berlin to own end-to-end infrastructure and platform operations. You will manage Kubernetes clusters, CI/CD pipelines, and GitOps workflows, while advancing automation with Terraform and Ansible and keeping observability stacks up to date.

In this hybrid role, you will collaborate across teams, support security gates, and optimize networks and databases.

Qualifikationen

• A degree in computerscience, a STEM subject, or an equivalent qualification gained through several years of professional experience
• Strong Linux skills and solid networking fundamentals (TCP/IP, DNS, TLS, MTU/routing) with proven troubleshooting ability
• At least 3 years of hands-on Kubernetes experience in production environments, along with container technologies (Docker/OCI)
• Hands-on depth with GitLab CI/CD or comparable systems, and with GitOps tooling such as ArgoCD or Flux
• Practical experience automating infrastructure and configuration as code with Terraform and Ansible
• Excellent analytical and debugging skills, with a structured, detail-oriented way of working
• A collaborative mindset: you enjoy developing solutions together, document your work, and share knowledge across the team
• Nice to have: Experience with a specific cloud platform (OCI, Azure, AWS, or GCP) and with migration projects
• Familiarity with DevSecOps toolchains such as Sonar Qube, Sonatype Lifecycle, Trivy, or Cosign/Sigstore

Aufgaben

• Kubernetes & containers: operate and expand clusters, node setup, upgrades, deployments, troubleshooting, and onboarding development teams
• CI/CD & GitOps: maintain and enhance GitLab environment and pipelines, runners, GitLab Agent for Kubernetes, Jira integration, GitOps with ArgoCD or Flux
• Automation & IaC: provision and configure with Terraform and Ansible
• Databases: install, configure, maintain, and troubleshoot database systems
• Observability: set up ELK/TIG and Grafana stacks, dashboards and alerts
• Networks & diagnostics: analyze and optimize networks, perform root-cause analysis including complex incidents
• Security: perform security checks at app and infra level, implement SAST, SCA, secrets detection, SBOM, and artifact signing
• Nice to have: cloud platform experience (OCI, Azure, AWS, GCP) and migration projects
• DevSecOps toolchains familiarity: SonarQube, Sonatype, Trivy, Cosign/Sigstore

Kenntnisse

Kubernetes

Linux

Networking

GitLab CI/CD

GitOps (ArgoCD/Flux)

Terraform

Ansible

Problem solving

Team collaboration

Ausbildung

Degree in computer science or STEM

Tools

Docker/OCI

ArgoCD

Flux

Grafana

ELK

Terraform

Ansible

GitLab

Jobbeschreibung

You work in a dedicated team on innovative solutions in a dynamic, product-oriented environment. You take end-to-end responsibility for our infrastructure and DevOps processes - from the Kubernetes platform and CI/CD pipelines through to monitoring, databases, and security. Your tasks:

• Kubernetes & containers: operation and expansion of our clusters - node setup, upgrades, deployments, troubleshooting, and application testing; onboarding of development teams onto the platform; management of Docker-based container solutions and their integration into the existing infrastructure
• CI/CD & GitOps: maintenance and further development of our GitLab environment, including pipelines, runners, the GitLab Agent for Kubernetes, and the Jira integration; GitOps-based delivery with ArgoCD or Flux
• Automation & Infrastructure as Code: provisioning and configuration management with Terraform and Ansible
• Databases: installation, configuration, maintenance, and troubleshooting of our database systems
• Observability: setup and operation of ELK / TIG / Grafana Alloy stacks - installation, configuration, dashboards, and alerting
• Networks & diagnostics: analysis and optimisation of our networks; log file analysis and systematic root cause analysis, up to and including complex incidents at packet level
• Security: security checks at application and infrastructure level, plus security gates in the pipeline (SAST, dependency/SCA scanning, secrets detection, SBOM generation, artifact signing)

Qualifications

• A degree in computerscience, a STEM subject, or an equivalent qualification gained through several years of professional experience
• Strong Linux skills and solid networking fundamentals (TCP/IP, DNS, TLS, MTU/routing) with proven troubleshooting ability
• At least 3 years of hands-on Kubernetes experience in production environments, along with container technologies (Docker/OCI)
• Hands-on depth with GitLab CI/CD or comparable systems, and with GitOps tooling such as ArgoCD or Flux
• Practical experience automating infrastructure and configuration as code with Terraform and Ansible
• Excellent analytical and debugging skills, with a structured, detail-oriented way of working
• A collaborative mindset: you enjoy developing solutions together, document your work, and share knowledge across the team

Nice to have:

• Experience with a specific cloud platform (OCI, Azure, AWS, or GCP) and with migration projects
• Familiarity with DevSecOps toolchains such as Sonar Qube, Sonatype Lifecycle, Trivy, or Cosign/Sigstore

We are motivated, committed, and believe in the importance of teamwork. We offer unparalleled opportunities for personal growth and development, all to create a compelling and rewarding work environment. We value personal interaction and foster a vibrant team culture, so we offer a hybrid work model that requires a presence in the office at least three days a week and allows for remote work. Additionally, we offer interesting workation models. Our team enjoys daily amenities such as:

• Fresh fruit daily in the team kitchen
• An in-house canteen with a daily selection of dishes from our chefs
• Table tennis and football
• Flexible working hours and partial remote work
• Space for creativity
• Budget for training and further education
• Access to discounts in the travel industry
• Team activities

Oh, by the way, we speak English during the day.