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