**Zertificon Solutions – Software Manufacturer since 2004.**
We are IT security specialists: our products encrypt business communications. More than 25% of the 100 highest-revenue companies in Germany, as well as hundreds of medium-sized enterprises across all industries, already use our Z1 encryption solutions. We have big plans and continue to grow steadily. Nearly 140 employees are already working with us in Neukölln. Join our professional, highly qualified team: take on challenges, share your knowledge, learn new things, and discover your potential!

The **(Sr.) DevOps Engineer** plays a pivotal role in managing Zertificon Operational Services (ZOS) platforms and environments where Zertificon products are developed, tested and run. The role ensures infrastructure health and security to guarantee smooth and uninterrupted development on our various stages. This role contributes to risk mitigation ensuring operational resilience and strengthening the company through:

- Proactive maintenance and monitoring of Zertificon environments ensuring their availability and full functionality.
- Maintenance of production and R&D hardware, supporting releases and troubleshooting on pipelines.
- Ownership and management of our R&D smart self-service solutions.

### Responsibilities

**Infrastructure & Automation**

- Design, building and maintenance of automated IT infrastructure (on-premise & cloud)
- Solve internal customer needs with infrastructure, tooling and self-service
- Develop and extend CI/CD pipelines using Jenkins, Ansible and Terraform
- Introduce Kubernetes as alternative orchestration platform

**Monitoring & Maintenance**

- Manage monitoring solutions (Prometheus, Grafana) and plan strategic alerts
- Maintain environments: Hardware testing, installation, patches, OS, certificates, firmware

**Containerization & Cloud**

- Manage, troubleshoot and automate container clusters (Kubernetes, Docker Swarm, hypervisors)
- Work with cloud providers (Azure, AWS, Google Cloud)

**Collaboration**

- Contribute to a team of 4-6 in SaaS development, troubleshooting and improvements
- Review scripts, playbooks, manifests and pull requests for code quality

### Qualifications

- Experience with container technologies (images, registries, Kubernetes)
- Strong understanding of Ansible for configuration management
- Proven experience with Kubernetes cluster configuration and management
- Solid understanding of Docker, CI/CD pipelines and Git
- Experience using Terraform
- Basic datacenter expertise with firewalls, switches, routers, cabling and servers
- Experience with Microsoft Azure and M365 products
- Excellent English language skills and effective communication
- Knowledge of databases (backup, restore, troubleshooting, migration) and InfoSec (TCP/IP, certificates)

**Join us to shape, secure and scale Zertificon’s platforms as part of a team.**

### We offer:

- **Flexible working hours** and home office possible
- **Mobility:** free Germany ticket, job bike leasing or car parking
- **Allowances** for food (e.g. Lieferando) and internet in the home office
- **Benefits in the office:** Roof terraces & green courtyard, organic fruit and drinks, parcel acceptance
- **Get-together:** pizza Friday in the office, regular team events, big summer party

### Why Zertificon?

Zertificon stands for *securing digital business*. We develop trusted IT security solutions "Made in Germany" – built for businesses that value both protection and usability.

- **Independent & committed:** For over 20 years, we’ve built secure communication tools – as an owner-managed company with a clear stance
- **Purpose-driven:** We believe that digital communication must be secure and free. If you think Edward Snowden did the right thing as a whistleblower, we might just share the same values. As a sign of our support, we donate €1,000 to an organization that supports Edward Snowden for every new hire who mentions him in their application
- **Hands-on excellence:** We take on complex challenges because we can. Our in-house experts are top-tier – even external specialists often learn from us. When we want the best, we build it ourselves
- **Agile by conviction:** We think fast, act pragmatically, and improve continuously. No bloated processes, no “that’s just how it’s always been done.” Initiative is welcome – but of course, it will be challenged, and not every idea will make it through unchallenged
- **Security that works:** We build software that’s not only secure, but actually usable – not just for large enterprises with dedicated highly skilled IT teams, but also for small and mid-sized businesses that need strong security without the complexity
- **Diverse & international:** Our team of 130 people from 30+ countries shares one mission: making secure digital communication easily accessible to businesses of all sizes

**If that resonates with you, we’d love to hear from you.**

Want to know more? Please have a look at our Work at Zertificon page: [https://www.zertificon.com/en/it-jobs-berlin/work-at-zertificon](https://www.zertificon.com/en/it-jobs-berlin/work-at-zertificon)

**Questions?**

You can reach our HR team at

[jobs@zertificon.com](https://mailto:jobs@zertificon.com)