Operational Technology; OT Cyber Security Systems Engineer
Listed on 2026-03-06
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Engineering
Cybersecurity, Systems Engineer
Operational Technology (OT) Cyber Security Systems Engineer
Chesterfield, DBY, GB, S41 7TD
Partial Remote (Hybrid)
Bilfinger UK is a leading engineering and maintenance provider, supporting customers across the chemical & petrochemical, nuclear, oil & gas, pharmaceuticals & biopharma, power & energy, utilities, renewables and food & beverage markets. We enhance the efficiency of assets, ensuring a high level of availability and reducing maintenance costs.
We have extensive experience in offshore and onshore facilities; specialising in asset management services throughout all life cycle phases from consulting, engineering, manufacturing, assembly, operations, maintenance, and decommissioning.
This commitment is delivered by an experienced and highly competent workforce of over 4,500 employees operating from 14 offices in strategic industrial hubs, upholding the highest standards of safety, compliance and quality.
RoleWe are seeking an experienced, committed and enthusiastic Operational Technology (OT) Cyber Security Systems Engineer to join our Automation team for a project-based contract role to design, develop & build and test network management and cyber security controls for an Industrial Control Systems (ICS) environment.
The role focuses on securing operational technology systems and networks while ensuring system availability, safety, and compliance with industry and client standards.
The OT Cyber Security Systems Engineer will take full responsibility for the successful delivery of cyber security and industrial networking aspects of the project (technical, quality, time and cost elements).
The candidate must be pro-active and able to deliver their own tasks whilst coordinating with project team members, supervising, assisting and monitoring task progress and support the Project Manager commercially on progress, risks, issues and opportunities.
The Engineer should work co-operatively with the Project Manager, Lead Engineers and engineering team to ensure smooth project progress in accordance with the agreed project lifecycle.
Key ResponsibilitiesWorking closely and collaboratively with the Project Manager, Lead Engineers and project engineering team you will:
- Be responsible for technical delivery of the OT network management system and cyber security controls for the project.
- Design, implement and test secure systems and networks for an industrial control system.
- Produce clear technical documentation, including design specifications, test procedures and operating and maintenance documentation, taking ownership of and updating existing documentation.
- Deploy and test networks and cyber security controls for a PLC and SCADA environment.
- Conduct system integration and factory acceptance testing (FAT).
- Support OT Cyber Security project lifecycle management activities including vulnerability identification, patching, software and password management.
- Collaborate effectively with and support the Project Manager, Lead Engineers and project engineering team with the planning and execution of OT cyber security aspects of projects to ensure they meet the time and quality required with clear reporting on progress and blockers.
- Provide health and safety leadership by example.
- Proven experience of design, implementation and testing of OT/ICS networks and cyber security solutions within industrial environments.
- Detailed experience of the full project life cycle from system specification through design, development, testing.
- Experience of the design, specification, implementation, testing and commissioning of security solutions, controls and countermeasures for OT/IACS environments. This should include:
- System security - Hardening of virtual environments and operating systems to recognised industry standards, guidelines and best practices.
- Cyber security applications for industrial control system environments:
- Malware detection and protection i.e. Endpoint Detection and Response (EDR).
- Hands on experience of:
- Network Performance Monitor.
- Network Traffic Analyser.
- Software Application Manager.
- Host-based Intrusion Detection Systems (HIDS) and Host-based Intrusion Prevention Systems (HIPS) using Trellix Endpoint Security (ENS)
- Def…
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