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 EtherNet/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.