Platform/Infrastructure Engineer

• Hands-on experience with virtualisation and on-premises server infrastructure (VMware ESXi or similar).
• Strong, proven experience with Linux.
• Experience with configuration management / infrastructure-as-code (Ansible, Terraform or similar).
• Experience with logging and monitoring stacks (ELK or similar).
• Understanding of containerisation and orchestration (Docker, Kubernetes or similar).
• Good grasp of security concepts, including vulnerability management and certificate/PKI lifecycle.
• Experience with git and artifact repositories (Nexus or similar).
• Willingness to travel to our Dublin data centre as required.
• Strong communication skills and comfort working autonomously.
• Willingness to participate in an on-call rotation.

Nice to have

• Experience administering public cloud infrastructure (AWS, GCP, Azure or similar) at scale.
• Scripting ability (Python, Bash or similar).
• Exposure to cloud cost optimisation / FinOps practices.
• Experience in a regulated or security-sensitive industry (telecoms, SIM/eSIM or similar).
• Familiarity with ITIL or similar change/incident management processes.

competitive salary and benefits package, along with a great flexible working culture. This role would be fully remote within Northern Ireland, but with plenty of opportunity to meet and collaborate with colleagues.

Kigen enable businesses to grow their Internet of Things rapidly through the SIM, eSIM and iSIM technologies and are pushing the boundaries in the industry. Working with a number of high-profile customers globally, our growing business is excited to be expanding our team in Belfast.

Help keep the world’s SIMs and eSIMs running - securely, reliably, and at scale. At Kigen, our platforms and infrastructure underpin SIM and eSIM services used across the globe. We’re looking for a Platform / Infrastructure Engineer to own and maintain the systems - spanning our on-premises data centre estate and public cloud - that keep production stable, compliant, and always on.

What you’ll be doing

• Administer and secure our on-premises data centre estate alongside public cloud environments (AWS, GCP or similar).
• Own OS patching, certificate lifecycle, and vulnerability remediation across the estate.
• Build and maintain configuration management and automation (Ansible or similar) for consistent, repeatable infrastructure changes.
• Support containerised workloads (Docker, Kubernetes or similar).
• Maintain logging, monitoring, and observability tooling (ELK stack or similar).
• Manage secure file transfer services (MFT/SFTP or similar) for partner and customer data exchange.