[Hiring] Platform/Infrastructure Engineer @Kigen

Role Description

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.

• 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.
• Configure and troubleshoot load balancing (F5 or similar) and monitor the virtualised estate.
• Own developer environments and artifact repositories (Nexus or similar).
• Take part in an on-call rotation as a first responder for production incidents.
• Provide hands-on support at our Dublin data centre, with travel as required.

Qualifications

• 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.

Requirements

• 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.

Benefits

• Competitive salary and benefits package.
• Great flexible working culture.
• Fully remote role within Northern Ireland, with opportunities to meet and collaborate with colleagues.