About the role
Job description
Team & Reporting Line: Cloud Infrastructure
Our Mission
At constellr, we use thermal intelligence from space to understand what is happening on Earth - where, when and at scale. Our satellite constellation delivers high-resolution land surface temperature data, giving governments, defence organisations, commercial operators and global institutions the intelligence they need to monitor change, assess risk and make better-informed decisions.
From national security and critical infrastructure to agriculture and climate resilience, constellr turns temperature into actionable intelligence for a changing world.
Your Role
You'll join our central Infrastructure team to help constellr build and operate the cloud infrastructure behind our software systems — the Ground Segment for satellite operations, Data and User Segments, and Space Engineering-related systems as well as the interface to our business IT and on-prem teams.
We currently operate platform-style and are largely self-organised, but with a real ops component: we support other teams via tickets, incident response, and bug fixes, and own infrastructure reliability end-to-end. Beyond day-to-day operations, we proactively shape “golden paths” for engineering teams company-wide rather than only reacting to requests. Security and cloud agnosticity are first-class concerns for us — we work toward high standards (e.g., ISO/IEC 27001) and collaborate closely with our Security/Compliance and IT departments, who own dedicated responsibilities in this area.
We’re hiring at a mid-to-senior level where tenure isn’t the leading indicator, more importantly you are expected to be able to see the bigger picture and weigh trade-offs across systems and teams, proactively surface issues and are comfortable owning topics end-to-end.
Key responsibilities
* Design and operate infrastructure across multiple cloud providers (currently AWS, expanding to an EU-sovereign provider), using IaC (Terraform/Terramate) with an eye toward security and portability while avoiding unnecessary vendor lock-in.
* Take ownership of key systems and topics alongside the team while contributing actively to shared team responsibilities and outcomes, not just your own backlog.
* Improve the reliability, performance, and scalability of systems deployed in the cloud.
* Manage secrets, encryption, and workload certificates (SOPS, KMS/HSM equivalents) consistently across cloud environments.
* Partner with the Security/Compliance department on ISO/IEC 27001 controls, risk assessments, and audits; implement infrastructure controls satisfying security requirements (access control, segregation of duties, auditability, data residency).
* Contribute to improving the observability stack to better monitor systems in the cloud and on-prem.
* Help spread domain and tech knowledge across the team to prevent siloing.
* Support other engineering teams via tickets and incident response while identifying recurring pain points to turn into paved-road solutions (golden paths, self-service tooling, standardized platform patterns).
* Own the cloud side of shared boundaries with Ops IT — cloud network design and address ranges, off-site backup targets, identity and privileged access into cloud resources — and keep those interfaces documented and reviewable.
* Provide architectural support and guidance to other engineering teams on selected cloud, platform, and security topics.
* Contribute to and maintain infrastructure documentation and onboarding materials.
Job requirements
About you
Required:
* Significant hands-on experience designing, securing, administering and operating software systems in the cloud.
* Hands-on experience with AWS or a comparable hyperscaler in a production setting.
* Experience with containerization, Kubernetes, and cloud-agnostic deployment technologies.
* Experience with VPCs, cloud networking, and modern zero-trust/mesh networking tools (e.g., Tailscale).
* Solid working knowledge of Terraform; comfortable adopting Terramate (or similar IaC orchestration tooling) if you haven't used it yet.
* Experience with observability stacks (Prometheus, Grafana, time-series stores).
* Solid working knowledge in practical security fundamentals: secrets/encryption management, IAM least-privilege, network segmentation, audit logging.
* Comfortable with Linux systems and VM administration.
* A track record of owning systems end-to-end while being a reliable, collaborative team member.
Nice to Have:
* Experience with EU sovereign providers such as STACKIT or Scaleway.
* Experience with incident response / operational practices.
* Exposure to ISO/IEC 27001 (or comparable public-sector/security-relevant certifications), or interest in contributing to certification efforts.
* Experience with GitOps/CD tooling (e.g., Argo CD, Argo Workflows).
* Experience with configuration management tooling (e.g. Ansible).
* Experience in aerospace, satellite ground segment, or other regulated/mission-critical environments.
* Experience with cloud- agnostic secrets management (e.g., OpenBao).
* Openness to being on-call.
Why join constellr?
* High-Impact National Security Mission: Be part of an ambitious mission to launch the world’s first commercial thermal infrared constellation, delivering sovereign-grade "behavioural" intelligence from space to close critical blind spots for defence, intelligence, and maritime surveillance agencies. * Fast-Paced "New Space" Innovation: Work at the leading edge of a rapidly evolving defence sector. By leveraging modern, agile New Space methodologies, you will help design, build, and deploy dual-use thermal payloads into operational orbit at a speed and scale that traditional aerospace models simply cannot match. * Broad Interdisciplinary Exposure: Accelerate your professional growth by collaborating daily with a diverse, international cohort of astrophysicists, software developers, and defence-system engineers. * Inclusive & Scientific Culture: Join a high-trust team deeply committed to diversity, inclusion, and scientific excellence, where academic curiosity is paired with high autonomy and a flat hierarchy. * Financial Upside & Well-being: Benefit from a Virtual Share Option Plan (VSOP) for permanent employees, giving you a true stake in the company's growth, alongside highly flexible hybrid working models.