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About the Role

Zentso is seeking a motivated IT Infrastructure and Security Engineer to support the global infrastructure and security posture of its revenue-critical SaaS platform, CloudToolz. This hands-on, junior-to-mid-level role involves assisting with daily operations, security tasks, and the migration to a containerized, Kubernetes-based deployment model. The successful candidate will contribute to uptime, security, and compliance in a distributed, multi-region environment, with a focus on supporting the transition to Kubernetes and building an observability practice.

Responsibilities

Manage global infrastructure spanning Windows Server 2022, SQL Server, MongoDB, Redis, and Cloudflare across four regions.
Support deployments of new CloudToolz releases and contribute to the Kubernetes migration.
Build and maintain a Grafana OSS observability stack.
Assist with DNS, CDN, WAF, and DDoS protection via Cloudflare.
Monitor system performance and participate in incident response and recovery.
Maintain documentation, runbooks, and disaster recovery procedures.
Write shell scripts and small infrastructure-related applications.
Support identity and access management, endpoint protection, and vulnerability management.
Administer policies across Microsoft 365, Bitwarden, Bitdefender GravityZone, and KnowBe4.
Contribute to GDPR/ISO 27001-aligned data protection policies, security awareness training, phishing simulations, and threat monitoring/response.
Support Microsoft 365 administration and Salesforce administration.
Share responsibility for endpoint security and password management configuration.
Provide input on infrastructure scaling, architecture decisions, and the containerisation roadmap.
Support infrastructure-as-code adoption and automate routine operations.
Contribute to sprint planning for environment-level requirements.
Participate in on-call rotation.

Requirements

2+ years of experience in IT infrastructure, cloud operations, systems administration, or DevOps.
Hands-on experience with Windows Server 2022, SQL Server, MongoDB, and Redis in operational contexts.
Practical Cloudflare experience (DNS, WAF, CDN, security features).
Working proficiency in Microsoft 365 administration, including Entra ID, Exchange Online, and SharePoint.
Hands-on Kubernetes experience: workload deployment, basic cluster operations, networking, and RBAC.
Solid understanding of networking fundamentals (firewalls, VPNs, DNS, access control).
Working knowledge of GDPR and experience supporting compliance controls.
Ability to write shell scripts and program in at least one modern language (e.g. Python, Go, C#, JavaScript/TypeScript).
Willingness to build small infrastructure-related applications and tools.
Strong communication skills.
Ability to work independently within a distributed, multi-time-zone team.

Skills

Windows Server 2022
SQL Server
MongoDB
Redis
Cloudflare
ASP.NET Core
Dynamics
iMIS
Salesforce
Kubernetes
Grafana OSS
shell scripting
Python
Go
C#
JavaScript/TypeScript
Microsoft 365
Entra ID
Exchange Online
SharePoint
Bitwarden
Bitdefender GravityZone
KnowBe4
GDPR
ISO 27001
PowerShell
Terraform
Pulumi
Ansible
CI/CD
GitOps
Prometheus
Loki
Docker
containerd
Helm
kubectl

Location

Berlin, Germany

Work Type

Full-time
Permanent
Remote-first
On-call

Experience Level

Junior-to-mid-level
2+ years

Education Level

MCSA
CompTIA Security+
CKA

Salary/Compensations

€55,000 – €75,000 per year

Benefits

Performance bonus
Employer contribution pension
Flexible working hours

About the Company

Zentso builds and operates CloudToolz, a revenue-critical SaaS platform layered on top of iMIS RiSE association management software.
The platform encompasses workflow automation, form building, CRM, CMS, and payment processing capabilities.
Zentso is a software company specialising in association management technology.
We operate as a small, distributed team with a strong emphasis on technical ownership, direct communication, and pragmatic decision-making.
The right person for this role will be someone who takes genuine satisfaction in keeping complex systems running reliably and securely, and who can operate with a high degree of autonomy.