DevOps Engineer

Das erwartet dich:
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”).

Das bringst du mit:
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:
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 stack:
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 practices:
Engineering Culture:

• Agile Scrum + XP elements, Kanban

• OOP, TDD, DDD, SOLID, Clean Code

• Code reviews, pull requests, automation mindset

• QA as part of cross-functional team

Benefits & Perks:
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