OT Security Consultant in London

OT Security Consultant in London

London Full-Time 60000 - 80000 £ / year (est.) No working from home possible
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At a Glance

  • Tasks: Support Energy & Utilities clients in enhancing their IT/OT security capabilities.
  • Company: Join a leading consultancy focused on critical national infrastructure.
  • Benefits: Competitive salary, flexible working options, and opportunities for professional growth.
  • Other info: Dynamic role with hands-on experience and client engagement.
  • Why this job: Make a real difference in securing vital services and protecting communities.
  • Qualifications: Experience with OT security, industrial control systems, and risk management.

The predicted salary is between 60000 - 80000 £ per year.

We are seeking an experienced OT Security Consultant to support our Energy & Utilities clients in designing, implementing and maturing their IT/OT security capabilities. In this role, you will work with Critical National Infrastructure (CNI) operators, distribution networks, generation facilities and major utilities organisations to help them secure their operational technology environments, manage cyber risk, and comply with sector‑specific regulations.

The ideal candidate will have strong hands‑on experience across industrial control systems (ICS), SCADA, OT network security, and a solid understanding of the challenges faced by organisations in the UK Energy & Utilities sectors. This role suits someone who thrives in complex environments, can communicate effectively with engineering teams and senior stakeholders, and enjoys blending security engineering with consultancy.

  • OT Security Advisory
    • Deliver expert consultancy on OT and IC security, providing guidance across risk management, architecture, governance, strategy, and controls implementation.
    • Conduct OT security assessments, including maturity reviews, threat modelling and risk assessments aligned to industry standards.
    • Support clients in developing OT security improvement plans, security roadmaps and investment cases.
  • Technical OT /ICS Security Delivery
    • Perform OT network security reviews, segmentation assessments and architecture validation work.
    • Assist with the design and implementation of secure OT networks, including firewalls, DMZs, data diodes and remote access solutions.
    • Conduct vulnerability assessments within IC environments.
  • Regulatory & Compliance Support
    • Guide clients on compliance with UK frameworks such as NIS/NISR and NCSC CAF.
    • Assist with audit preparation, documentation and remediation planning.
  • Client Engagement & Delivery Leadership
    • Work with engineering, IT, security, and operations teams.
    • Produce high‑quality consultancy deliverables.

Responsibilities

  • Experience with operational technology, industrial control systems and SCADA.
  • Experience delivering OT security projects within the Energy & Utilities sector.
  • Understanding of industrial protocols.
  • Hands‑on experience with OT network design and security.
  • Familiarity with control system vendors.
  • Experience applying OT frameworks such as IEC62443.

Certifications – Highly Desirable

  • OT/ICS Security/Safety Certifications
  • General Security Certifications
  • Engineering Certifications

Personal Attributes

  • Strong analytical and problem‑solving skills.
  • Comfortable working on industrial client sites.

The candidate Nice to have

  • Understanding of OT vs IT architecture differences.
  • Knowledge & experience of OT IDS technologies such as Nozomi, Claroty, Dragos.
  • Understanding of industrial networking and gateways.
  • Experience with OT focused penetration testing.
  • Knowledge of cloud‑integrated OT solutions.
  • Ability to translate technical findings into business recommendations.
  • Comfortable delivering workshops.

OT Security Consultant in London employer: nxzen Global

As an OT Security Consultant with us, you will join a forward-thinking company that prioritises employee development and fosters a collaborative work culture. Our commitment to the Energy & Utilities sector not only allows you to make a meaningful impact on critical national infrastructure but also offers unique opportunities for professional growth through hands-on experience and continuous learning in a dynamic environment. Located in the heart of the UK, we provide a supportive atmosphere where innovation thrives, ensuring that our employees are equipped to tackle the challenges of tomorrow's security landscape.

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Contact Details:

nxzen Global Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land OT Security Consultant in London

Tip Number 1

Network, network, network! Get out there and connect with professionals in the Energy & Utilities sector. Attend industry events, webinars, or even local meetups. The more people you know, the better your chances of landing that OT Security Consultant role.

Tip Number 2

Show off your expertise! Prepare a portfolio showcasing your past projects related to OT security, ICS, and SCADA systems. When you get the chance to chat with potential employers, share your experiences and how you've tackled challenges in the field.

Tip Number 3

Don’t underestimate the power of social media! Use platforms like LinkedIn to engage with companies you're interested in. Follow them, comment on their posts, and share relevant content. This can help you get noticed and might even lead to job opportunities.

Tip Number 4

Apply through our website! We’ve got a range of roles that could be perfect for you. Tailor your application to highlight your hands-on experience with OT network design and security, and don’t forget to mention any relevant certifications you hold.

We think you need these skills to ace OT Security Consultant in London

OT Security
Industrial Control Systems (ICS)
SCADA
OT Network Security
Cyber Risk Management
Regulatory Compliance (NIS/NISR, NCSC CAF)
Risk Assessments

Some tips for your application 🫡

Tailor Your CV:Make sure your CV is tailored to the OT Security Consultant role. Highlight your experience with industrial control systems, SCADA, and any relevant certifications. We want to see how your skills match 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 security and how your background makes you a great fit for our team. Don’t forget to mention specific projects or experiences that relate to the Energy & Utilities sector.

Showcase Your Problem-Solving Skills:In your application, give examples of how you've tackled complex challenges in previous roles. We love candidates who can think critically and come up with innovative solutions, especially in the context of OT security.

Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way to ensure your application gets into the right hands. Plus, it shows us you’re serious about joining our team at StudySmarter!

How to prepare for a job interview at nxzen Global

Know Your OT Security Basics

Make sure you brush up on your knowledge of operational technology and industrial control systems. Be ready to discuss specific frameworks like IEC62443 and how they apply to the Energy & Utilities sector. This will show that you understand the technical landscape and can engage in meaningful conversations.

Showcase Your Consultancy Skills

Prepare examples from your past experiences where you've successfully delivered consultancy services. Highlight how you’ve helped clients with risk management, compliance, or security assessments. This will demonstrate your ability to blend security engineering with consultancy, which is key for this role.

Communicate Effectively

Practice explaining complex technical concepts in simple terms. You’ll need to communicate with both engineering teams and senior stakeholders, so being able to translate technical findings into business recommendations is crucial. Consider doing mock interviews to refine this skill.

Understand the Regulatory Landscape

Familiarise yourself with UK regulations like NIS/NISR and NCSC CAF. Be prepared to discuss how these frameworks impact OT security and how you can assist clients in achieving compliance. This knowledge will set you apart as a candidate who is not only technically proficient but also aware of the regulatory environment.