Senior Engineer

CoreSearch A/S; København; On-site; DKK 1,200,000 - 1,700,000; Full time

Job summary

Skatteguiden is seeking a senior platform/infrastructure engineer to own the AKS-based production platform from Azure migration to operations. You will design and implement end‑to‑end infrastructure, security controls, and developer tooling, ensuring reliable scale for a platform used daily by engineers across teams.

You will join the Operational Platform team focusing on infrastructure, developer platform, and reliability.

Qualifications

• Solid hands-on experience running AKS in production environments.
• Broad Azure experience including networking and identity controls.
• Experience with Linux and network troubleshooting.

Responsibilities

• Migrate infrastructure to Microsoft Azure using AKS and Terraform as code.
• Administer production Kubernetes cluster, upgrades, network policies, RBAC, and reliability tooling.
• Integrate security requirements into platform design with GDPR and ISO 27001 awareness.
• Maintain CI/CD pipelines and GitOps workflows (GitHub Actions, ArgoCD) to speed production."
• Run observability tooling (Prometheus, Grafana, Sentry) and on-call processes.
• Enable AI tooling and sandboxed execution environments for engineers.
• Manage infrastructure costs with visibility and waste reduction.

Skills

AKS in production

Azure Networking

Azure Key Vault

Entra Workload Identity

Linux

Job description

Would you like to take ownership of kick-starting Skatteguiden's AKS platform?

From day one, you'll take ownership of a substantial and business-critical project: building Skatteguiden's new production platform on Azure Kubernetes Service from the ground up. It's a rare opportunity to design a production environment from scratch and make architectural decisions that will shape how the platform is built and operated for years to come.

The platform has grown. The infrastructure that keeps Skatteguiden running has reached a scale and complexity that deserves full-time, specialist ownership, and the work ahead makes this an unusually good time to join.

About the role

You’ll be joining the Operational Platform team, the team responsible for everything that isn’t the product itself: the infrastructure, the developer platform, and the systems that keep Skatteguiden running reliably at scale.

The team treats the platform as a product, with engineers distributed across several product teams as their users. They ship to production every day, and the platform is what makes that possible.

What you´ll do

• Migrate the infrastructure to Microsoft Azure. Moving from bare-metal Kubernetes to AKS, designing and building the entire new infrastructure as code from scratch using Terraform
• Build and operate the production environment. Kubernetes cluster administration, upgrades, network policies, RBAC, and the systems that keep the platform stable and reliable
• Integrate security into the platform. Work with Head of Security & Privacy to translate security requirements into technical controls; security as a built-in property, not an afterthought
• Improve developer experience. Maintain and develop CI/CD pipelines and GitOps workflows (GitHub Actions + ArgoCD) so the path from code to production is fast, reliable, and transparent
• Run the observability platform. Prometheus, Grafana Cloud, and Sentry, making it effortless for teams to instrument their code without manual setup; and setting up the on-call tooling that connects alerts to the right people
• Enable engineers to use AI effectively. Identify, build, and maintain the tooling and infrastructure that puts AI assistance within reach of every engineer on the team; this includes sandboxed execution environments, MCP servers, and whatever the space demands next
• Manage infrastructure costs. Clear visibility into cloud spends and a bias toward reducing waste without compromising reliability or developer experience

Who we´re looking for

You’re likely a senior platform, infrastructure, or site reliability engineer who’s run production Kubernetes at scale and sees the platform not just as infrastructure to operate but as a product whose users are the engineers who ship Skatteguiden every day. If you’ve done parts of this and want to take on the breadth, we’d like to hear from you.

Must-have

• Solid hands-on experience running and managing AKS in production, including Azure Networking, Azure Key Vault, and Entra Workload Identity
• Broad Azure experience. You know your way around the platform. The services, how they connect, and how access and permissions work. The team will be the internal reference point for Azure architecture and design decisions, so a solid, broad understanding of what’s possible and how to apply it matters
• Working knowledge of Linux and networking. You’re comfortable debugging at the system and network level
• Hands-on experience with IaC, managing CI/CD pipelines, managing a production observability stack, and building internal tooling with software engineering discipline
• Security, privacy, and compliance awareness. You design and implement with security, GDPR, and frameworks like ISO 27001 in mind, and you have hands-on experience applying controls across infrastructure, cloud environments, and developer tooling
• Genuine enthusiasm for AI. You use it daily and you’re always looking for new ways to apply it

Nice-to-have

• A "platform as a product" mindset. Experience thinking about developer experience as a product discipline, not just an operational concern
• Prior experience planning and executing a hosting or infrastructure migration
• Familiarity with the current stack: ArgoCD, Grafana, Prometheus, Sentry, and GitHub
• Familiarity with Cloudflare, including DNS, CDN, WAF, DDoS protection, and Workers

Why join Skatteguiden

You’ll join a small, highly skilled engineering team with a high degree of autonomy, where your work has real impact. Technical excellence is taken seriously, with a strong focus on security, architecture and keeping technical debt under control. The product itself is equally meaningful, as more than one million Danes rely on Skatteguiden every year.

Skatteguiden is an independent, profitable and growing company with a clear mission and no unnecessary bureaucracy. The team embraces AI across the business and continuously looks for new ways to work smarter, making it an exciting environment for engineers who enjoy adopting new technologies and improving the way they work.

Just as importantly, you’ll be joining a team of genuinely good people. The culture is professional, collaborative and informal. People care deeply about building great technology, while maintaining a down-to-earth atmosphere where everyone enjoys working together.