Platform & Security Engineer
Cosuno
Seniority
Midweight
Model
Remote
Sector
Salary
€80,000 – €100,000
Contract
Full-Time
About the role
As our Head of Platform & Security, you'll take full ownership of the infrastructure, security, and compliance foundations that our product is built on. You'll be a key partner to our CTO and Engineering team — making sure we stay secure, certified, and scalable as we grow.
What you'll do
- Complete 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
- Own your domains end to end with high autonomy and high impact
- Work with modern infrastructure managed as code with Terraform, deployed to AWS and GCP via Kubernetes
- Treat security and compliance as a genuine part of how we build trust with enterprise customers
- Collaborate closely with our Full Stack Engineering team on infrastructure when capacity allows
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
- Hands-on experience with ISO 27001 — you've led or been deeply involved in a certification and know how audits actually work
- Solid experience with cloud infrastructure (AWS and/or GCP) and infrastructure-as-code (Terraform)
- Comfort operating Kubernetes in a production environment
- The organisational maturity to manage multiple open threads — an audit, an RFI, an infra task — without things slipping
- A pragmatic, ownership-driven mindset: you find both the technical and operational sides of this role interesting
Nice to have
- Experience with compliance automation tooling (Vanta, Drata, Kertos, or similar)
- Familiarity with GDPR operational requirements (DPAs, DSARs, vendor reviews)
- CI/CD experience, including self-hosted runners
- Prior experience at a B2B SaaS startup
What they offer
- Competitive salary above the market average
- Choose to work 100% remotely or from modern office in Berlin with flexible working hours
- New MacBook Pro to ensure you have the best tools for the job
- Regular company off-sites and team events
- Permanent contract in a stable, well-funded company

