7 of 7 Remote/Hybrid Operational Technology Jobs in the Thames Valley

Technical Design Authority- Secure Networks

Hiring Organisation
Nasstar
Location
High Wycombe, Buckinghamshire, UK
Employment Type
Full-time
validate SASE/Zero-Trust policies, ZTNA access models, identity-aware segmentation, and secure site templates; align with Nasstar security frameworks and customer policies. • Operational handover: Ensure designs are operable: documentation, config standards, test plans, knowledge transfer and run-books to transition smoothly into support. • Continuous improvement: Capture lessons … budgets. • Comfortable chairing design workshops and Design Authority forums, documenting outcomes and holding teams to standards Nice to have • Operational Technology (OT) Security: Exposure to OT network segmentation, asset zoning (ISA/IEC 62443 concepts), secure remote access for plant or retail edge, and constrained-environment change practices. ...

Technical Security Engineer

Hiring Organisation
Ventula Consulting
Location
Slough, Berkshire, UK
Employment Type
Full-time
commissioning, along with deep technical expertise to ensure high-quality, reliable physical security operations across a multi-site environment. Key Responsibilities Oversee daily OT operations and incidents, ensuring systems remain secure, reliable, and fully supported. Conduct system checks, audits, and performance reporting across CCTV, access control, and OT platforms. Manage … standardised deployments. Identify risks, manage vulnerabilities, and drive continuous improvement across all security systems. Key Requirements Proven experience managing enterprise-level CCTV, EACS, and OT systems in a multi-site environment. Expertise in CCTV, EACS and OT systems architecture (on prem and cloud) Strong technical knowledge of system architecture, networking ...

Technical Security Engineer

Hiring Organisation
Ventula Consulting
Location
Milton Keynes, Buckinghamshire, UK
Employment Type
Full-time
commissioning, along with deep technical expertise to ensure high-quality, reliable physical security operations across a multi-site environment. Key Responsibilities Oversee daily OT operations and incidents, ensuring systems remain secure, reliable, and fully supported. Conduct system checks, audits, and performance reporting across CCTV, access control, and OT platforms. Manage … standardised deployments. Identify risks, manage vulnerabilities, and drive continuous improvement across all security systems. Key Requirements Proven experience managing enterprise-level CCTV, EACS, and OT systems in a multi-site environment. Expertise in CCTV, EACS and OT systems architecture (on prem and cloud) Strong technical knowledge of system architecture, networking ...

SC cleared. pen tester

Hiring Organisation
PROCHECKUP LIMITED
Location
Slough, Berkshire, UK
Employment Type
Full-time
whilst collaborating with senior consultants and team leaders Maintain compliance with legal frameworks governing penetration testing and disclosure Specializations You May Develop: SCADA/OT environment security testing Cloud infrastructure penetration testing (AWS, Azure) Web services and API security Mobile application testing (iOS/Android) Who You Are Essential Experience ...

Lead AI Developer

Hiring Organisation
Exalto Consulting
Location
Slough, England, United Kingdom
decision platform used within industrial and manufacturing environments. The platform connects to maintenance, inventory and procurement systems and is designed to turn complex operational data into predictive insight and automated decision making. Our aim is to help factories and large operational teams move from manual processes to intelligent … making Integrate AI functionality with an existing platform built on .NET, React and Azure Create and maintain data pipelines for maintenance, inventory, supplier and operational data Deliver production ready agents, models and AI services with strong engineering standards Collaborate with software engineers to ensure performance, security and reliability across ...

Penetration Tester

Hiring Organisation
Advanced Resource Managers
Location
Slough, Berkshire, UK
Employment Type
Full-time
responsible for managing and conducting advanced penetration testing engagements, leveraging threat intelligence to simulate real-world attacks across a variety of environments, including OT, IT, web applications, cloud infrastructure, and APIs. This role requires a deep understanding of adversarial approaches, excellent communication skills, and the ability to provide strategic … applying a strong threat intelligence-led approach. Execute advanced penetration tests across a broad range of environments (applications, infrastructure, web, APIs, O365, Azure, AWS, OT), directly applying your knowledge of current threat landscapes and attacker TTPs. Develop and maintain sophisticated test plans, execution plans, and targeted use cases directly informed ...

Penetration Testers (CHECK / CREST)

Hiring Organisation
Cyber Guarded Ltd
Location
Oxford, Oxfordshire, UK
Employment Type
Full-time
across the UK. We're looking for an experienced Penetration Tester (not entry level) to deliver high-assurance testing across infrastructure, web, cloud and OT environments. This is a fully remote role within Great Britain, with occasional client-site visits. What You'll Do Deliver CHECK-level infrastructure, web, cloud … OT penetration tests Own assessments end-to-end: scoping → testing → reporting → client debriefs Develop tooling, methodologies, and contribute to internal R&D Work with a supportive, senior technical team on meaningful real-world challenges What We're Looking For 3–5+ years professional penetration testing experience CHECK Team Member/ ...