System Engineer (IoT Infra, Network & Server

A hands-on systems engineering role supporting enterprise IoT deployments alongside broader infrastructure work. This is not a Windows admin or L1 support position - the client needs L2 to early L3 depth across devices, networks, servers, and SaaS platforms. You'll be involved in device configuration, patch testing, rollout activities, and troubleshooting across a mixed environment that includes IoT systems (building management, lighting, occupancy, air quality), Windows and Linux servers, and cloud/SaaS platforms. Requirements What You'll Be Doing

• Supporting and implementing enterprise IoT/OT device infrastructure - config, maintenance, patching, troubleshooting

• Translating architectural designs and requirements into operational implementations

• Performing patch testing, deployments, and device validation

• Troubleshooting complex issues across device, network, server, and platform layers

• Managing migration, refurbishment, and new IoT platform rollout projects

• Writing and maintaining runbooks, technical documentation, and operational guides

• Ensuring compliance with enterprise security standards - auth, authorisation, encryption

• Working with vendors and stakeholders to implement and future-proof systems

• Windows and Linux server administration

• Networking: firewalls, load balancers, proxies, VLANs, subnets

• IoT/OT device configuration, troubleshooting, and support across multiple platforms

• SaaS platform experience, including SAML and OIDC

• Security fundamentals: authentication, authorisation, encryption

• Strong documentation skills - clear, maintainable, and auditable

• Comfortable in a high-security, production enterprise environment