Platform Engineer, Security

Cosuno

Platform & Security Engineer overseeing infrastructure and security at Cosuno. Responsible for ISO 27001 certification and managing cloud services and IT support.

Posted 4/12/2026full-timeRemote • 🇩🇪 GermanyJunior💰 €80,000 - €100,000 per yearWebsite

Tech Stack

Tools & technologies

AWSCloudGoogle Cloud PlatformKubernetesTerraform

About the role

Key responsibilities & impact

Take over full ownership of infrastructure, security, compliance, and internal IT
Lead our ISO 27001 certification and establish the processes to maintain it going forward
Take ownership of our Terraform configurations across AWS and GCP, improving structure and reliability
Respond to security questionnaires from enterprise customers, helping us close deals faster
Streamline employee IT onboarding and access management across our SaaS tooling stack
Set up and manage MDM, tooling, and IT support for the team.

Requirements

What you’ll need

Full professional fluency in German and English — a significant part of our compliance and customer-facing security work is conducted in German, and this is a firm requirement
Solid experience with cloud infrastructure (AWS and/or GCP) and infrastructure-as-code (Terraform)
Comfort operating Kubernetes in a production environment
The ability to pick up new domains quickly — whether that's navigating an ISO 27001 audit or setting up an MDM solution, you figure things out by thinking clearly, not by having done it ten times before
A pragmatic, ownership-driven mindset: you're equally comfortable debugging a Kubernetes issue and writing a security policy
The organisational maturity to manage multiple open threads — an audit, an RFI, an infra task — without things slipping.

Benefits

Comp & perks

Competitive Compensation: A competitive salary above the market average.
Work-Life Balance: Choose to work 100% remotely or from our modern office in Berlin. We offer flexible working hours to fit your life.
Top-Notch Equipment: A new MacBook Pro to ensure you have the best tools for the job.
A Great Team: Regular company off-sites and team events that connect us as people, not just colleagues.
Job Security: A permanent contract in a stable, well-funded company.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

TerraformAWSGCPKubernetesinfrastructure-as-codesecurity policy writingMDM solution setup

Soft Skills

ownership-driven mindsetorganizational maturityproblem-solvingadaptabilityclear thinking

Certifications

ISO 27001 certification