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- Tasks: Design and deliver security architectures for critical OT environments and lead cyber assessments.
- Company: Dynamic consulting firm focused on securing vital UK infrastructure.
- Benefits: Flexible work environment, genuine work-life balance, and continuous growth opportunities.
- Other info: Collaborative culture with regular meetups and a focus on personal development.
- Why this job: Make a real impact in securing essential services while working with cutting-edge technology.
- Qualifications: Strong experience in cybersecurity controls and consulting across OT and hybrid environments.
The predicted salary is between 48000 - 72000 £ per year.
We’re seeking a Senior OT Security Architect to join a fast-paced consulting engagement within a complex, high-impact technology environment. The Senior OT / CNI Security Architect will help secure some of the most critical environments in the UK – from energy and utilities to transport, manufacturing and wider CNI clients. You’ll blend hands-on technical expertise and security architecture with a consulting mindset, acting as a trusted advisor to clients and shaping secure-by-design OT/ICS and hybrid IT/OT solutions.
What you’ll do:
- Design and deliver OT / CNI security architectures for ICS/SCADA, industrial networks and hybrid IT/OT environments
- Produce key artefacts: threat models, risk assessments, high/low-level designs, security roadmaps
- Work with client engineering, ops and security teams in a trusted advisor capacity
- Lead or support cyber/OT security assessments and transformation projects
- Contribute to the development of our OT / CNI consulting offerings and collateral
What we’re looking for:
- Strong experience designing and implementing cybersecurity controls across OT and/or hybrid environments
- Experience in cyber / information security consulting or auditing
- Good knowledge of frameworks such as IEC 62443, NIS/NIS2, NIST, ISO 27001, CIS, CAF, Cyber Essentials
- Comfortable engaging with both technical and non-technical stakeholders
- Adaptable, curious, and able to work across different sectors and technologies
Nice to have:
- CISSP, CISM, CISA, SABSA, TOGAF, ISO 27001 Lead Auditor/Implementer
- Cloud (Azure / AWS) and/or IAM / PAM experience
- Background in OT, CNI or industrial environments
Why join our client:
- A genuinely flexible environment – work where and how you’re most productive.
- The team comes together regularly for meetups and technical sessions that feel more like catching up with friends than formal meetings.
- A culture built on trust and respect – you’ll find leaders who listen, colleagues who share knowledge freely in an autonomous environment.
- Genuine work-life balance – they know great work comes from happy people, not long hours.
- Continuous growth – ongoing training, certifications, and support to help you develop into senior architecture and advisory roles.
- Variety and impact – projects span OT, secure infrastructure, identity, network, and endpoint security across on-premises, cloud, and hybrid environments (Azure, AWS, M365).
Senior Security Architect - OT in Reading employer: 55 Exec Search
Contact Detail:
55 Exec Search Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Security Architect - OT in Reading
✨Tip Number 1
Network like a pro! Reach out to folks in the industry on LinkedIn or at events. A friendly chat can lead to opportunities that aren’t even advertised yet.
✨Tip Number 2
Show off your skills! Create a portfolio or case studies of your past projects, especially those related to OT and CNI security. This gives potential employers a taste of what you can bring to the table.
✨Tip Number 3
Prepare for interviews by practising common questions and scenarios specific to OT security. We recommend role-playing with a friend to boost your confidence and refine your answers.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets noticed. Plus, we love seeing candidates who are proactive about their job search.
We think you need these skills to ace Senior Security Architect - OT in Reading
Some tips for your application 🫡
Tailor Your CV: Make sure your CV speaks directly to the role of Senior OT Security Architect. Highlight your experience with cybersecurity controls in OT and hybrid environments, and don’t forget to mention any relevant frameworks you’re familiar with!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to showcase your consulting mindset and how you can be a trusted advisor to clients. Share specific examples of past projects that align with the responsibilities outlined in the job description.
Showcase Your Technical Skills: We want to see your hands-on technical expertise! Be sure to include any relevant certifications like CISSP or CISM, and detail your experience with designing security architectures for ICS/SCADA and industrial networks.
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 this exciting opportunity. We can’t wait to hear from you!
How to prepare for a job interview at 55 Exec Search
✨Know Your Frameworks
Make sure you brush up on key frameworks like IEC 62443, NIS/NIS2, and ISO 27001. Being able to discuss these in detail will show your technical expertise and understanding of the security landscape, which is crucial for a Senior OT Security Architect role.
✨Showcase Your Consulting Skills
Prepare examples of how you've acted as a trusted advisor in previous roles. Highlight your experience in engaging with both technical and non-technical stakeholders, as this will demonstrate your ability to communicate complex concepts clearly.
✨Prepare for Scenario-Based Questions
Expect questions that ask you to solve real-world problems related to OT/ICS security. Think about past projects where you designed security architectures or conducted risk assessments, and be ready to walk through your thought process.
✨Emphasise Continuous Learning
Talk about your commitment to ongoing training and certifications. Mention any relevant qualifications like CISSP or CISM, and express your enthusiasm for staying updated with the latest trends in cybersecurity, especially in OT environments.