Overview
The IoT / OT Infrastructure Engineer will be embedded within a global IoT and Smart Buildings programme at a Tier 1 financial institution. The programme is migrating every non-PC device in their offices worldwide — air quality sensors, occupancy sensors, smart lighting systems, CCTV cameras, printers, and building-adjacent systems — onto a dedicated SD Access fabric that is fully segregated from the corporate network.
The programme is already live across multiple global regions with further sites in progress. This is not a greenfield project — it is an active, fast-moving delivery programme with real operational complexity. The engineer hired will be joining a small, senior team and will be expected to own problems independently.
Job Description
WHAT YOU WILL DO
- Onboard, configure, and troubleshoot IoT devices — occupancy sensors, air quality monitors, smart lighting, CCTV, and building-adjacent systems — from initial deployment through to stable operation and data flowing to the cloud platform
- Administer and troubleshoot Linux and Windows servers hosting IoT application services — checking broker services, reading application logs, diagnosing why device data has stopped flowing at the application layer before escalating to network or vendor teams
- Manage IoT device endpoints at the device level — firmware updates, certificate lifecycle management, configuration deployment, and device lifecycle from onboarding through decommission
- Work across networking, security, proxy, firewall, and vendor teams to resolve device connectivity issues — engaging the right team with the right question rather than owning specialist network or security engineering
- Support building migrations — coordinating with facilities engineers and internal teams to onboard devices onto the SD Access fabric, validate end-to-end connectivity, and confirm data is flowing to the cloud dashboard
- Manage security approval processes for IoT device changes — navigating regulated change control, security architecture reviews, and multi-team sign-off workflows
- Maintain technical documentation, asset lifecycle records, and operational runbooks for the IoT device estate
- Support PoC and RFE initiatives for new device categories being evaluated for the programme
- Participate in out-of-hours and weekend work during active building migration periods
Skills & Requirements
IoT Application Layer, MQTT Protocol (Mosquitto, EMQX), IoT Devices, IoT Endpoint Management (Firmware Updates, Certificate Lifecycle Management), Regulated Environment, Networking Fundamentals (DNS, DHCP, NTP, Proxy Configuration, Firewall, MAC Address Registration, 802.1X, MAB), Linux Administration, Windows Server, Security & Identity (SAML, OIDC, Certificate-Based Authentication), Scripting & Automation (Python, PowerShell, Bash), Cloud Platforms (AWS, Azure), Device Management.
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