OT Security Engineer

OT Security Engineer

Full-Time No home office possible
Sanderson

At a Glance

  • Tasks: Protect and enhance critical OT environments through hands-on security engineering and incident response.
  • Company: Join a leading firm focused on securing industrial control systems.
  • Benefits: Competitive pay, flexible work arrangements, and opportunities for professional growth.
  • Other info: Dynamic role with a focus on continuous improvement and innovation in security practices.
  • Why this job: Make a real difference in safeguarding vital infrastructure with cutting-edge technology.
  • Qualifications: Experience in OT security and strong knowledge of industrial control systems required.

Rate: £500 – £550 Inside IR35

Duration: 6 months

Location: South West (Bristol) – 2 days per week onsite

The Role: We’re hiring an experienced Security OT Engineer to support the protection and evolution of complex Operational Technology (OT) and industrial control system environments. This role sits within a Security Operations function but is heavily engineering-focused, combining hands-on OT security tooling, detection engineering, and incident response to strengthen resilience across critical infrastructure.

Key Responsibilities:

  • Act as the OT security engineering SME, supporting both operational and project based activities
  • Engineer, configure and optimise OT security platforms (e.g. OT NDR tools such as Claroty or equivalent)
  • Develop and refine detection rules, alerting logic and monitoring coverage across OT and IT/OT convergence points
  • Lead technical investigations and incident response for OT-related cyber events
  • Analyse industrial network traffic to identify anomalies, threats and protocol misuse
  • Integrate OT telemetry into SIEM and EDR platforms to enhance visibility and correlation
  • Support secure by design initiatives for new OT systems, including segmentation and access control validation
  • Assess vulnerabilities in OT systems and implement practical, risk-based remediation strategies
  • Drive continuous improvement in OT security posture, tooling effectiveness and detection capability
  • Maintain and enhance OT security documentation, playbooks and engineering standards

Experience Required:

  • Proven experience in a Security OT Engineer / OT Cyber Security role
  • Strong understanding of industrial control systems (ICS) – including SCADA, PLCs, DCS
  • Hands-on experience with OT security tools (e.g. Claroty, Nozomi, Dragos or similar NDR platforms)
  • Solid knowledge of industrial protocols (e.g. Modbus, DNP3, OPC, Profinet)
  • Experience with SIEM, EDR and network traffic analysis (e.g. Wireshark)
  • Background in incident response, threat detection and security monitoring within OT or converged environments
  • Understanding of network segmentation, secure remote access and OT architecture design
  • Familiarity with frameworks such as ISA/IEC 62443 and MITRE ATT

OT Security Engineer employer: Sanderson

Join a forward-thinking company in Bristol that prioritises innovation and security within the Operational Technology sector. With a strong commitment to employee development, we offer a collaborative work culture that encourages continuous learning and growth, alongside competitive remuneration and flexible working arrangements. Our focus on cutting-edge technology and critical infrastructure ensures that you will play a vital role in shaping the future of OT security while enjoying the unique advantages of working in a vibrant city known for its rich history and thriving tech community.

Sanderson

Contact Detail:

Sanderson Recruiting Team

StudySmarter Expert Advice🤫

We think this is how you could land OT Security Engineer

Tip Number 1

Network, network, network! Get in touch with folks in the OT security space. Attend meetups, webinars, or even local tech events. The more people you know, the better your chances of landing that dream job.

Tip Number 2

Show off your skills! Create a portfolio or GitHub repository showcasing your projects related to OT security. This gives potential employers a taste of what you can do and sets you apart from the crowd.

Tip Number 3

Don’t just apply blindly! Tailor your approach for each role. Research the company’s OT environment and mention specific tools or protocols they use in your conversations. It shows you’re genuinely interested and knowledgeable.

Tip Number 4

Keep an eye on our website for openings! We regularly post roles that might be perfect for you. Applying directly through us not only streamlines the process but also keeps you in the loop about new opportunities.

We think you need these skills to ace OT Security Engineer

OT Security Engineering
Operational Technology (OT) Security
Industrial Control Systems (ICS)
SCADA
PLCs
DCS
OT Security Tools (e.g. Claroty, Nozomi, Dragos)

Some tips for your application 🫡

Tailor Your CV:Make sure your CV is tailored to the OT Security Engineer role. Highlight your experience with industrial control systems and any hands-on work with OT security tools like Claroty or Nozomi. 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 key responsibilities in the job description.

Showcase Relevant Experience:When detailing your experience, focus on your hands-on work with OT security platforms and incident response. We love seeing concrete examples of how you've tackled challenges in previous roles, especially those related to industrial protocols and network traffic analysis.

Apply Through Our Website:We encourage you to apply through our website for the best chance of getting noticed. It helps us keep track of applications and ensures you’re considered for the role. Plus, it’s super easy – just follow the prompts and submit your application!

How to prepare for a job interview at Sanderson

Know Your OT Security Tools

Make sure you’re well-versed in the specific OT security tools mentioned in the job description, like Claroty or Nozomi. Be ready to discuss your hands-on experience with these platforms and how you've used them to enhance security in previous roles.

Understand Industrial Protocols

Brush up on your knowledge of industrial protocols such as Modbus, DNP3, and OPC. During the interview, be prepared to explain how these protocols work and how you’ve dealt with them in terms of security vulnerabilities.

Showcase Incident Response Experience

Highlight your background in incident response and threat detection. Share specific examples of incidents you've managed, detailing your approach to investigation and remediation, and how you improved security postures as a result.

Familiarity with Security Frameworks

Demonstrate your understanding of relevant security frameworks like ISA/IEC 62443 and MITRE ATT&CK. Discuss how you’ve applied these frameworks in your work to ensure compliance and enhance security measures in OT environments.