Senior Security Engineer (IT/OT)

Salary: £49,000 - 89,000 per year

Requirements

• Strong enterprise IT security engineering experience
• Strong experience working with operational, distributed or OT environments
• Strong knowledge of network security, particularly segmentation, firewalls and VPNs
• Experience across identity and endpoint security
• Confidence making technical decisions and influencing stakeholders
• A pragmatic, hands-on approach to solving complex security problems

Responsibilities

• Lead security engineering across corporate IT and operational environments
• Design and implement secure architectures and hardened configurations
• Drive network segmentation, firewalls, VPNs and secure remote access
• Strengthen identity and endpoint security across a distributed estate
• Act as a senior technical escalation point for incidents and complex security challenges
• Assess cyber risk and translate it into practical recommendations
• Work closely with infrastructure, engineering, operations and facilities teams
• Mentor colleagues and help establish security engineering best practice

Technologies

• Network
• Security
• Active Directory

More

We are a well known business with a growing international presence, and we are looking for a Senior IT/OT Cyber Security Engineer to protect the systems that keep our stores, distribution centres and operational sites running around the clock. This is a senior, hands-on engineering role based in the London area on a hybrid basis, offering a salary of 80-90k plus a very competitive package. You will sit at the point where corporate infrastructure meets the industrial systems we depend on, helping us build and shape our IT/OT security capability as we scale.

last updated 36 week of 2026