OT Engineer/Automation Architect

Job Title: OT Engineer/Automation Architect

Location: Cheshire (Hybrid)

Contract type: Long-term contract

Overview:

I'm working with a global manufacturing & FMCG organisation who are gearing up for a series of major operational technology projects. They're modernising their automation and infrastructure stack and are looking to connect with experienced engineers/architects who can deliver on Siemens PLC upgrades, OT network resilience, and large-scale system integration projects.

The Opportunity:

You'd be part of a site-level engineering team, contributing to strategic infrastructure upgrades across highly regulated, high-output environments. It's a chance to bring technical depth and practical project delivery skills into an organisation where OT security, uptime, and scalability are critical.

What You'll Be Working On:

• Siemens PLC programming, migration, and optimisation (S7, TIA Portal).
• OPC connectivity and integration across complex environments.
• OT infrastructure upgrades - server migrations, network resilience, automation systems.
• Collaborating with site engineering managers and wider technology teams to design and deliver projects.
• Vendor and stakeholder management across multi-site operations.

What We're Looking For:

• 8+ years' experience in OT/automation across FMCG, pharma, or other regulated industries.
• Strong hands-on Siemens PLC background (S7, TIA Portal).
• Proven track record delivering OT infrastructure upgrade projects.
• Experience managing stakeholders and suppliers in high-output environments.
• Ability to balance hands-on technical delivery with architectural/strategic input.

GCS is acting as an Employment Business in relation to this vacancy.