Senior OT Infrastructure Engineer
Alexion Pharmaceuticals · Athlone, Leinster, IE
Senior OT Infrastructure Engineer Location: Monksland, Athlone 37.
Job description
Senior OT Infrastructure Engineer Location: Monksland, Athlone: 37.5 per week (Mon–Fri, 09:00–17:00, flexible) Competitive salary and benefits: Opening date: 14/04/2026: Closing date: midnight 20/04/2026: The Senior OT Infrastructure Engineer is a key member of the AAMF Manufacturing Systems team, responsible for the design, reliability, cybersecurity and lifecycle management of GMP‑critical OT infrastructure. This includes DCS/PLC/SCADA systems, data historians, servers and networks that underpin drug product manufacturing. Working at the interface of IT and Automation, the role ensures systems remain highly available, secure and compliant, while enabling digitalisation, analytics and AI initiatives aligned with Industry 4.0 and site strategy. Accountabilities: Own reliability, availability and performance of GMP‑critical OT systems and networks Maintain OT systems in a validated, audit‑ready state (cGMP, GAMP, 21 CFR Part 11, data integrity) Plan and implement patching, upgrades, preventative maintenance and obsolescence strategies Lead OT cybersecurity controls including network segmentation, vulnerability management and incident response Govern change control, risk assessments,...