OT Engineer

This role is part of a major network and systems transition programme at a medical device manufacturing site. You will assess each production asset, prepare the documentation needed for cutover, and help move systems safely onto a new network. You will work with a global transition team and gain experience in a regulated manufacturing environment.

What You'll Be Doing

● Assess each manufacturing asset, including control systems, PLCs, HMIs, I/O, and how they connect.

● Review network details: VLANs, IP addresses, firewalls, switch ports, and dependencies.

● Check software and firmware versions, cybersecurity status, and any compliance gaps.

● Record machine-level requirements and prepare clear documentation before each cutover.

● Produce documentation that covers pre-cutover requirements, labelling, configuration changes, and UAT testing.

● Work with site engineering, IT, Quality, Validation, and Operations to plan site visits and cutover activities.

● Take part in site visits and workshops to confirm machine information and get sign-off from stakeholders.

● Support cutover activities: move assets onto the new network, coordinate configuration changes, and check systems work correctly afterwards.

● Help plan and schedule automation project work linked to the transition programme.

● Assess risks for each asset and help plan how to reduce them, including impact on validation and downtime.

● Help create and run test plans, including IT/UAT and cutover checks.

● Follow GxP/GAMP guidance for computerised systems and keep documentation ready for audits.

● Report issues or risks to management promptly.

What You'll Need
Essential

● A degree in Engineering, Computer Science, Automation, Controls, or equivalent experience.

● Practical experience with OT and automation systems: PLCs, HMIs, SCADA, industrial networks, and field devices.

● Good knowledge of networking basics: TCP/IP, VLANs, subnetting, DHCP, DNS, routing, and managed switches.

● Understanding of GAMP and computerised system validation in regulated environments.

● Experience carrying out site-based assessments and writing up technical requirements.

● Good communication skills and the ability to work with teams across different locations.

Desirable

● Experience in medical device or other regulated manufacturing environments.

● Experience with industrial cybersecurity, such as segmentation, firewalls, or NAC.

● Experience with MES, ERP integrations, or industrial protocols such as Ether Net/IP, PROFINET, Modbus, or OPC UA.

● Experience planning or carrying out cutovers for network migrations.

● Experience with database configuration or basic scripting for automation tasks.

Skills and Attributes

● High attention to detail and strong documentation skills.

● Proactive approach and good problem-solving ability.

● High professional standards and flexibility to manage changing priorities.

● Strong communication, presentation, and stakeholder management skills.

● Able to assess technical and risk impacts across automation and network changes.

● Good at collaborating and listening to others.

● Solid project management skills and able to meet deadlines.

● Always looking for ways to improve how things are done