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

Personio; Berlin; Hybrid; EUR 70.000 - 110.000; Vollzeit

Benefits dieser Stelle

Hybrid work model

Fruit daily

In-house canteen

Table tennis

Flexible working hours

Training budget

Travel discounts

Team activities

Zusammenfassung

Personio in Berlin is seeking a seasoned DevOps/Infrastructure Engineer to own end-to-end operations for our Kubernetes platform, CI/CD pipelines, monitoring, databases, and security in a product-driven environment.

You will automate with Terraform and Ansible, manage GitLab CI/CD and GitOps with ArgoCD or Flux, and ensure reliable, secure deployments across teams in a hybrid work model.

Qualifikationen

• A degree in computer science, STEM subject, or equivalent qualification gained through several years of professional experience.
• Strong Linux skills and solid networking fundamentals 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.

Aufgaben

• Kubernetes & containers: operation and expansion of our clusters, nodesetup, upgrades, deployments, troubleshooting, and testing; onboarding development teams.
• CI/CD & GitOps: maintenance and development of our GitLab environment, pipelines, runners, and GitLab Agent for Kubernetes; GitOps delivery with ArgoCD or Flux.
• Automation & IaC: 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 stacks — dashboards and alerting.
• Networks & diagnostics: analysis and optimization of networks; root-cause analysis, including complex incidents at packet level.
• Security: security checks at app and infra level, plus security gates in the pipeline (SAST, SCA, secrets detection, SBOM, signing).

Kenntnisse

Linux

Networking fundamentals

Kubernetes in production

GitOps tooling

Analytical problem solving

Team collaboration

Ausbildung

Degree in Computer Science or STEM

Tools

GitLab CI/CD

ArgoCD

Flux

Terraform

Ansible

Docker

Kubernetes

Jobbeschreibung

Deine Aufgaben:

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 ourclusters — nodesetup, upgrades, deployments, troubleshooting, and applicationtesting; onboarding of developmentteamsonto the platform; management of Docker-basedcontainersolutions and theirintegrationinto the existinginfrastructure
• 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 ArgoCDor Flux
• Automation & Infrastructure as Code: provisioning andconfiguration 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 ournetworks; log fileanalysis and systematic root causeanalysis, up to and includingcomplexincidents at packet level
• Security:securitychecks at application and infrastructure level, plus securitygates in the pipeline (SAST, dependency/SCA scanning, secretsdetection, SBOM generation, artifactsigning)

Dein Profil:

• A degree in computerscience, a STEM subject, or anequivalent 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 Kubernetesexperience in productionenvironments, alongwithcontainertechnologies (Docker/OCI)
• Hands-on depth with GitLab CI/CD or comparable systems, and with GitOps tooling such as ArgoCDor Flux
• Practical experience automatinginfrastructure and configuration as code with Terraform and Ansible
• Excellent analytical and debuggingskills, with a structured, detail-orientedway of working
• A collaborativemindset: youenjoydevelopingsolutionstogether, document your work, and shareknowledgeacross the team
  

Nice to have:

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

Warum wir:

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.