Technical Lead - OT Cyber Security in London
Technical Lead - OT Cyber Security

Technical Lead - OT Cyber Security in London

London Full-Time 70000 - 90000 ÂŁ / year (est.) Home office (partial)
Thales

At a Glance

  • Tasks: Lead OT cyber security initiatives and shape secure industrial systems.
  • Company: Thales, a leader in advanced technology and national resilience.
  • Benefits: Performance bonus, flexible hours, 28 days leave, and hybrid work.
  • Other info: Join a dynamic team with opportunities for growth and innovation.
  • Why this job: Make a national impact with your expertise in cutting-edge OT cyber security.
  • Qualifications: Deep knowledge of OT/ICS cyber security and relevant standards.

The predicted salary is between 70000 - 90000 ÂŁ per year.

Location: Ebbw Vale, Reading, Crawley, Bristol, Templecombe, and Cheadle (any Thales office)

Other: permanent, full‑time, hybrid, with 10‑15% domestic & international travel

Step into a role where your OT cyber expertise shapes national‑level resilience and the future of secure industrial systems!

What the role has to offer

  • Enterprise‑wide technical influence – shaping consequence‑informed, secure‑by‑design OT architectures, guiding adoption of cutting‑edge OT and AI‑enabled security technologies, and steering the evolution of Thales' future OT cyber capabilities
  • Authoritative decision making – owning the final technical position on OT security designs, risks, and investments, strengthening national resilience and aligning product roadmaps with emerging trends
  • Innovation leadership – driving next‑generation OT security capabilities, modernising legacy estates, leveraging AI opportunities, and shaping Thales' long‑term cyber resilience strategy

Our Opportunity

As our OT Cyber Security Technical Product Authority, you will take the lead in defining how advanced OT cyber capabilities are designed, assured, and evolved across some of the UK's most complex and safety‑critical environments. You'll be the organisation's senior voice on OT security, setting the direction for architectures, standards, and engineering approaches that protect industrial control systems, SCADA platforms, process management technologies, and critical national assets.

You will provide authoritative leadership for consequence‑informed, secure‑by‑design OT systems, driving risk‑informed architectures and shaping organisational strategy through confident, evidence‑based decision making. Your influence will extend across senior stakeholders and multi‑vendor supply chains, ensuring suppliers meet rigorous expectations while advancing next‑generation OT resilience. By embedding a consistent, standards‑driven approach, you'll strengthen governance, reduce cyber risk across essential services, and build long‑term architectural maturity.

We're seeking someone with deep, hands‑on OT/ICS cyber security expertise—from SCADA and PLCs to industrial networking—supported by strong knowledge of standards such as IEC 62443 and NIS2. You will bring Technical Authority‑level judgement to steer complex engineering programmes, model consequence‑based risks, analyse threats, and define secure architectures with confidence, while communicating clearly with senior leaders and constructively challenging suppliers. This role is for those with genuine OT experience, not purely IT or cloud backgrounds; you'll understand real‑time, safety‑critical environments and the realities of industrial processes. Whether your background is in energy, transport, advanced manufacturing, critical national infrastructure, control systems engineering, or industrial process sectors, you'll bring the curiosity, resilience, and sound judgement needed to operate where your expertise shapes outcomes at a national level.

What we offer you

  • Performance‑related bonus
  • Half day every Friday, usually finishing around 13:00
  • 28 days annual leave

Technical Lead - OT Cyber Security in London employer: Thales

Thales is an exceptional employer that champions innovation and technical leadership in the field of OT Cyber Security. With a hybrid work model and opportunities for domestic and international travel, employees benefit from a supportive work culture that prioritises professional growth and collaboration across diverse teams. The company offers competitive benefits, including a performance-related bonus and generous leave policies, making it an attractive choice for those looking to make a meaningful impact in secure industrial systems.
Thales

Contact Detail:

Thales Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Technical Lead - OT Cyber Security in London

✨Tip Number 1

Network like a pro! Reach out to your connections in the OT cyber security field and let them know you're on the lookout for opportunities. Attend industry events or webinars to meet potential employers and make a lasting impression.

✨Tip Number 2

Showcase your expertise! Prepare a portfolio or case studies that highlight your hands-on experience with OT/ICS cyber security. This will help you stand out during interviews and demonstrate your ability to tackle real-world challenges.

✨Tip Number 3

Practice your pitch! Be ready to explain your technical authority and how you've influenced past projects. Use clear, concise language to communicate your ideas effectively, especially when discussing complex topics with non-technical stakeholders.

✨Tip Number 4

Apply through our website! We want to see your application directly, so don’t hesitate to submit your CV and cover letter via our platform. It shows initiative and gives us a chance to connect with you right away!

We think you need these skills to ace Technical Lead - OT Cyber Security in London

OT Cyber Security Expertise
Industrial Control Systems (ICS)
SCADA Knowledge
PLC Understanding
Industrial Networking
IEC 62443 Standards
NIS2 Compliance
Risk-Informed Architecture Design
Evidence-Based Decision Making
Stakeholder Engagement
Multi-Vendor Supply Chain Management
Governance and Cyber Risk Reduction
Technical Authority-Level Judgement
Threat Analysis
Communication Skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the Technical Lead - OT Cyber Security role. Highlight your hands-on experience with OT/ICS cyber security and any relevant standards like IEC 62443. 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 OT cyber security and how your background makes you the perfect fit for this role. We love seeing genuine enthusiasm and a clear understanding of the position.

Showcase Your Leadership Skills: Since this role involves authoritative decision-making and innovation leadership, make sure to highlight any past experiences where you've led projects or teams. We want to know how you've influenced technical decisions and driven change in your previous roles.

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 shows you’re keen on joining our team at StudySmarter!

How to prepare for a job interview at Thales

✨Know Your OT Cyber Security Inside Out

Make sure you brush up on your knowledge of OT cyber security, especially standards like IEC 62443 and NIS2. Be ready to discuss how these standards apply to real-world scenarios, as this will show your deep understanding of the field.

✨Showcase Your Leadership Skills

Prepare examples that highlight your experience in leading technical teams and making authoritative decisions. Think about times when you've influenced architecture or strategy in a project, as this will demonstrate your capability to take charge in complex environments.

✨Communicate Clearly and Confidently

Practice articulating your thoughts clearly, especially when discussing technical concepts. Remember, you'll need to communicate with senior stakeholders, so being able to explain complex ideas in simple terms is key to showing your leadership potential.

✨Be Ready to Challenge and Collaborate

Think about how you've constructively challenged suppliers or team members in the past. Prepare to discuss your approach to collaboration and governance, as this role requires building long-term relationships while ensuring rigorous standards are met.

Technical Lead - OT Cyber Security in London
Thales
Location: London

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