Responsibilities:

Collaborate closely with architects, developers, QA, and security teams to ensure smooth and reliable environment operations.
Work in close partnership with the platform team, based on shared ownership, knowledge exchange, and mutual support.
Own and operate containerized application platforms based on Docker and Kubernetes, ensuring reliability, scalability, and operational excellence.
Design and deliver dynamic test environments at scale, including multiple parallel, per–merge request (branch-based) deployments.
Build, maintain, and standardize CI/CD pipelines by creating reusable templates and components in GitLab CI.
Drive deployment automation and GitOps practices
Identify operational bottlenecks and implement automation to reduce manual effort and improve delivery speed.
Embed security-by-design across the SDLC, including pipeline hardening and automated security checks.
Build and operate observability platforms: monitoring, logging, and diagnostics (Prometheus, Grafana, ELK/EFK/Loki, etc.).
Participate in on-call and incident response, including troubleshooting, root-cause analysis, and post-mortems.
Take end-to-end ownership of the solutions you build (“you build it, you run it”).

Requirements (Must-have)

5+ years of experience as a DevOps Engineer or SRE in web-based systems.
Strong expertise in Docker: image building, maintenance, registries, Docker Compose.
Hands-on experience with Kubernetes: deployments, networking, ingress, secrets/configs, troubleshooting.
CI/CD expertise with GitLab CI, including deployment automation (Helm or Kustomize).
Experience with branch-based / ephemeral environments, or the ability to design and deliver such a solution in practice.
Observability know-how: metrics, logs, and tracing with Grafana and related tooling.
Ingress / reverse proxy experience (e.g. Traefik or similar): TLS, Let’s Encrypt, routing, mTLS.
Security and IAM knowledge: OAuth2 / OIDC, SSO, token and permission management.
Excellent communication skills, strong collaboration mindset, and willingness to help others.
Fluent English.

Nice-to-have:

Production experience with ArgoCD / GitOps.
Infrastructure as Code and configuration management using Terraform and Ansible (or equivalents).
Backend stack exposure: primarily PHP, Go.
Datastores and messaging: MariaDB (backup/restore, basic HA), RabbitMQ (monitoring, tuning).
Cloud platforms: AWS, Azure, or GCP.
Mobile CI/CD experience (bonus only): Fastlane, CodeMagic, Firebase App Distribution.
German language skills.

Our Tech & QA Stack:

Languages / Frameworks: PHP 8+ (Symfony 6+, Laravel 9+), JavaScript / TypeScript, Go, PHPUnit, Codeception, Flutter/Dart
Databases & Messaging: MySQL, MariaDB, RabbitMQ, Kafka
Infrastructure & Cloud: UNIX/Linux, Kubernetes, Cloud platforms (AWS / Azure / GCP)
CI/CD & Delivery: GitLab CI, ArgoCD, CodeMagic, Fastlane
Containerization & Deployment: Docker, Helm, Kustomize
Testing & QA: Playwright, Python, Dart, Postman
Observability & Reliability: Prometheus, Grafana, Sentry
Security & IAM: OAuth2 / OIDC, SSO, Secrets & Access Management, TLS / Let’s Encrypt
AI & Developer Tools: JetBrains AI, Cursor, RAG, Google Workspace (G Suite – ecosystem)
Collaboration & Productivity: Jira, Requirements & Test Management for Jira, Confluence, Slack, IDE (freedom of choice), Google Workspace (G Suite)

Engineering Culture:

Benefits and Perks:

Private healthcare
Cafeteria system
Training budget €800 per year
Integration meetings (internal training, hackathon, integration trips and meetings)
Referral Bonus
Startup atmosphere
No dress code
Flexible hours and working format – remote or hybrid
Modern office, Chillout zone, Standing desk, parking for bicycles, and a cloakroom with showers
Regular office lunches and integration meetings
Some international travels included

Um dich für diesen Job zu bewerben, besuche bitte blaudirekt.jobs.personio.de.

DevOps Engineer – Lübeck

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