Who we need We are hiring a Senior Systems Engineer to join our Infrastructure & Operations team. This is a senior, hands‑on infrastructure role focused on Linux systems, virtualization, physical and co‑location infrastructure, Kubernetes, storage, automation, and complex production troubleshooting. The successful candidate will act as a senior technical escalation point for systems and infrastructure issues and will work closely with DevOps, Network, DBA, Security, and application teams to deliver reliable, secure, scalable infrastructure in support of illumin's global operations. The ideal candidate has deep expertise in core systems and infrastructure engineering, broad knowledge across adjacent technology domains, and the ability to trace problems across operating systems, compute, storage, networking, virtualization, and container platforms. The role requires strong ownership, sound operational judgment, and a focus on automation and continuous improvement. This is a full-time, hybrid position, working in our Toronto office three days per week. You must be able to travel internationally (US & Europe) without restrictions. Systems Administration & Infrastructure Engineering Serve as a senior technical escalation point for Linux systems and infrastructure issues, with strong working knowledge of Windows Server environments. Manage, maintain, and optimize VMware vSphere/ESXi environments and other virtualization platforms, including compute, networking, storage, host lifecycle, and vCenter integration. Operate and support on-premise, co‑location, and hybrid infrastructure across multiple sites and regions. Perform capacity planning, lifecycle management, performance analysis, and reliability improvements across infrastructure platforms. Support Kubernetes node lifecycle, container runtimes,



networking, DNS, certificates, persistent storage, observability, and cluster reliability. Partner with DevOps and application teams to improve platform reliability, deployment practices, and operational standards. Networking & Cross‑Platform Troubleshooting Apply solid enterprise networking fundamentals, including TCP/IP, routing, DNS, DHCP, VLANs, load balancing, and BGP, to troubleshoot infrastructure and application connectivity issues. Work collaboratively with the Network Engineering team on Cisco, Juniper, load balancers, routing, and datacenter connectivity; direct ownership of all network platforms is not required. Diagnose complex production issues that span systems, network, storage, virtualization, and application layers using packet captures, logs, metrics, and system‑level tooling. Automation, DevOps & Observability Develop and maintain infrastructure automation using Python, Ansible, Bash, APIs, and related tooling; Go experience is an asset. Automate repetitive infrastructure operations, configuration changes, validation, and systems integrations across large‑scale environments. Apply DevOps practices to configuration management, CI/CD workflows, infrastructure delivery, and operational automation. Improve monitoring, logging, alerting, capacity management, and observability across infrastructure platforms using tools such as Prometheus, Grafana, Netdata, ELK,



or equivalent. Storage & Data Platform Infrastructure Support enterprise and distributed storage technologies, including local storage, SAN/NAS, object storage, and Kubernetes persistent storage. Troubleshoot storage performance, availability, disk, filesystem, and capacity issues across physical, virtual, and containerized environments. Support infrastructure underlying MySQL and other stateful platforms, including compute, storage, networking, high availability, and performance troubleshooting, in collaboration with the DBA team. Produce clear technical documentation, runbooks, standards, and operational procedures. Mentor junior engineers and share technical knowledge across teams. Collaborate closely with DevOps, Network, DBA, Security, and application teams to deliver infrastructure that meets technical and business requirements. You will bring these required

qualifications:

Experience:
8-10+ years in systems engineering, infrastructure engineering, systems administration, or a closely related role, with substantial experience supporting production environments. ITIL Foundations ( v3 or v4) in IT Service Management Technical Expertise Deep hands‑on Linux systems administration and troubleshooting experience, with solid working knowledge of Windows Server. Strong understanding of enterprise networking concepts, including TCP/IP, routing, DNS, DHCP, VLANs , load balancing, and general BGP concepts. Strong automation skills using Python, Ansible, Bash, APIs , or comparable tooling. Experience supporting on‑premise and co‑location infrastructure , including enterprise server hardware and remote management technologies. Experience with storage technologies

📌 Systems Engineer (Canada)
🏢 Lighthouse Hiring
📍 Canada