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- Tasks: Design and govern secure architectures for operational technology in defence.
- Company: Leading organisation in the defence sector focused on digital transformation.
- Benefits: Competitive daily rate, hybrid working, and potential for contract extensions.
- Why this job: Join a mission-critical team and shape the future of military infrastructure.
- Qualifications: Experience in IT/OT environments and industrial control systems required.
- Other info: Active SC clearance needed; immediate interviews available.
The predicted salary is between 46800 - 62400 £ per year.
Around £650/d - Outside IR35
Hybrid working with 2-3 days onsite in Preston
6 months initially, with possible extensions due to the long-term nature of the programme.
Active SC Cleared required
An exciting opportunity has arisen with a highly recognised organisation in the defence sector, focused on transforming and modernising military and security infrastructure through data-driven digital transformation, battlefield management systems, and advanced cybersecurity.
ABOUT THE ROLE
In this role you will be joining a bigger team of Security Architects delivering secure, mission-critical systems across the IT/OT environment for a defence client based in Preston. You will be responsible for defining, designing, and governing the architecture of industrial and operational systems that control and monitor physical processes. The role ensures OT environments are secure, and acting as a technical authority across Industrial Control Systems (ICS), SCADA, and IIoT. You will provide strategic direction alongside hands-on architectural leadership.
WHAT WILL YOU DO?
- OT Architecture & Strategy
- Support long-term OT roadmaps, modernization initiatives, and IT/OT convergence
- Define and maintain OT architecture principles, standards, and reference designs
- Design end-to-end OT solutions covering control systems, networks, data flows, and integrations
- Ensure architectures meet safety, availability, and operational resilience requirements
- Architect solutions across ICS, SCADA, DCS, PLCs, and HMIs
- Review designs, vendor solutions, and system changes for architectural compliance
- Produce clear architecture documentation, standards, and guidance
- Support integration of OT systems with enterprise IT, cloud, and data platforms
- Define standards for industrial protocols (e.g. Modbus, OPC UA, DNP3, IEC 61850)
- Embed security-by-design into OT architectures
- Define OT network segmentation, zoning, and access controls (Purdue Model / IEC 62443)
- Conduct risk assessments, threat modeling, and architecture assurance reviews
- Support compliance with safety and security regulations and standards
WHAT DO YOU NEED TO BE SUCCESSFUL?
- Proven experience as an Architect in complex environments
- Strong experience with IT/OT environments and industrial control system architectures
- Understanding of OT cyber security principles and standards
- Experience with ICS/SCADA/DCS environments
- Knowledge of industrial networking and protocols
- Understanding of IT/OT integration and data flows
- Previous experience working on MOD and defence project is desired, but not essential
For more information and immediate consideration please apply today. Immediate interviews available.
Security Architect - OT - Operational Technology in Preston employer: identifi Global Resources
Contact Detail:
identifi Global Resources Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Security Architect - OT - Operational Technology in Preston
✨Tip Number 1
Network like a pro! Attend industry events, webinars, or meetups related to Operational Technology and cybersecurity. Engaging with professionals in the field can open doors and give you insider info on job opportunities.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your previous projects and achievements in OT architecture. This visual representation of your work can make a lasting impression during interviews.
✨Tip Number 3
Prepare for those interviews! Research the company and its recent projects in the defence sector. Tailor your responses to highlight how your experience aligns with their needs, especially in IT/OT convergence and security.
✨Tip Number 4
Don’t forget to apply through our website! We’ve got loads of exciting opportunities waiting for you. Plus, applying directly can sometimes give you an edge over other candidates.
We think you need these skills to ace Security Architect - OT - Operational Technology in Preston
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the Security Architect role. Highlight your experience with IT/OT environments and any relevant projects you've worked on. We want to see how your skills align with what we're looking for!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about this role and how your background makes you a perfect fit. We love seeing enthusiasm and a personal touch.
Showcase Relevant Experience: When detailing your experience, focus on your work with industrial control systems and cybersecurity principles. We’re keen to see examples of how you've tackled challenges in complex environments.
Apply Through Our Website: Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it’s super easy to do!
How to prepare for a job interview at identifi Global Resources
✨Know Your OT Architecture Inside Out
Make sure you brush up on your knowledge of operational technology architecture principles and standards. Be ready to discuss how you've applied these in past roles, especially in complex environments. This will show that you’re not just familiar with the concepts but can also implement them effectively.
✨Demonstrate Cybersecurity Savvy
Since this role involves ensuring OT environments are secure, be prepared to talk about your understanding of OT cybersecurity principles and standards. Share specific examples of how you've embedded security-by-design into your previous projects, as this will highlight your proactive approach to security.
✨Showcase Your Hands-On Experience
Employers love candidates who can back up their theoretical knowledge with practical experience. Be ready to discuss your work with ICS, SCADA, and DCS environments, and how you’ve architected solutions across these systems. Real-world examples will make your application stand out.
✨Prepare for Technical Questions
Expect technical questions related to industrial networking protocols like Modbus, OPC UA, and IEC 62443. Brush up on these topics and think of scenarios where you’ve had to apply this knowledge. This will demonstrate your expertise and readiness for the challenges of the role.