OT Security Associate Technician
OT Security Associate Technician

OT Security Associate Technician

Rochester Full-Time 38000 - 41000 £ / year (est.) No home office possible
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National Grid

At a Glance

  • Tasks: Support cyber security operations and incident response at Grain LNG.
  • Company: Join National Grid, a leader in decarbonising the energy system and ensuring a sustainable future.
  • Benefits: Enjoy a competitive salary, bonuses, flexible benefits, and a generous pension scheme.
  • Why this job: Be part of a dynamic team focused on safety, reliability, and innovation in energy.
  • Qualifications: Strong communication skills and awareness of IT/OT protocols are essential.
  • Other info: This role is based on-site; a full clean driving licence is required.

The predicted salary is between 38000 - 41000 £ per year.

About the role

National Grid Grain LNG aims to be the foremost LNG importation terminal in the world, with a first-class team delivering high performance for its customers, communities and National Grid, through unparalleled safety, reliability and efficiency.

The terminal has hit a new utilisation record, exporting 102,589 GWh of gas over a twelve month period, the equivalent of almost 14 per cent of total GB gas demand.

We are currently recruiting for a OT Security Associate Technician to support the Cyber Operations Engineer to ensure the continued safe and reliable operation of Grain LNG\’s assets by securing the terminal\’s operational technology (OT) infrastructure from internal and external threats.

The role will incorporate all aspects of security monitoring, threat intelligence, disaster recovery, vulnerability management and incident response, in line with NCSC NIS and site requirements.

The role is based on site at Grain and due to the location you will need to be able to drive there and must have a full clean licence.

What you\’ll do

  • Support in the configuration, baselining and tuning of OT cyber alerts for Grain LNG security products including network intrusion detection systems and security information and event management systems.
  • Assist with cyber security events at Grain LNG and provide support to incident response lead and internal/external parties.
  • Assist in disaster recovery efforts when responding to cyber incidents, this includes providing support to operational teams across Grain LNG
  • Support the sites threat intelligence capability and assess applicability to the sites OT equipment and draft information within a report for management.
  • Support vulnerability management lifecycle for operational equipment by performing threat hunts across the OT environment, assisting with vulnerability assessments and penetration testing with internal/external parties.
  • Support the asset management database for operational equipment, ensuring key security information is available to hand.
  • Work closely with Process, Customer Operations, Key Stakeholders and Contracting Partners to drive maximum efficiency through the delivery of the annual plan.
  • Ensure training needs are identified within your relevant area, to ensure you are competent and have the necessary flexibility to meet current and future workload requirements.
  • Assist with data recording to support accurate management and regulatory reporting KPI\’s.

What you\’ll need

Supervisory/Interpersonal

  • An excellent communicator, making sure that information is understood by all individuals within and outside the team and able to tackle issues to give satisfactory resolution.
  • Ability to organise and plan work effectively. – Effective people management skills – Effective time management.

Technical

  • Awareness of industrial networking, common IT protocols (i.e. HTTPS, DNS, SSL etc.) and OT protocols (i.e. Modbus, Profibus, OPC etc.) fundamentals for industrial control and safety systems.
  • Awareness of Purdue architecture and its relationship with operational equipment. – Exposure to writing common scripting language such as Bash, PowerShell etc. Understanding of Security monitoring within critical national infrastructure (CNI) using technologies such as SIEM and IDS/IPS
  • Exposure to Microsoft and Linux operating systems

What you\’ll get

A competitive salary between £38,000- £41,000 per annum dependent on capability.

As well as your base salary, you will receive a bonus based on personal and company performance and a competitive contributory pension scheme where we will double match your contribution to a maximum company contribution of 12%.

You will also have access to a number of flexible benefits such as a share incentive plan, salary sacrifice car and technology schemes, support via employee assistance lines and matched charity giving to name a few.

About us

National Grid is pioneering ways to decarbonise the energy system; from building interconnectors to allow the UK to share clean energy with our neighbours in Europe, to investing in renewable energy generation in the United States.

As one of the largest investor-owned energy companies in the world, National Grid is at the centre of a clean, fair and affordable energy future, where tackling climate change and reaching net zero is a key priority.

More Information

This role closes on 26th August 2025 at 23:59, however we encourage candidates to submit their application as early as possible and not wait until the published closing date as this can vary.

At National Grid, we work towards the highest standards in everything we do, including how we support, value and develop our people. Our aim is to encourage and support employees to thrive and be the best they can be. We celebrate the difference people can bring into our organisation, and welcome and encourage applicants with diverse experiences and backgrounds, and offer flexible and tailored support, at home and in the office.

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OT Security Associate Technician employer: National Grid

National Grid Grain LNG is an exceptional employer, offering a dynamic work environment where safety, reliability, and efficiency are paramount. Employees benefit from competitive salaries, a robust pension scheme, and flexible perks, all while contributing to a pioneering energy company focused on decarbonisation and sustainability. With a strong emphasis on personal development and a culture that values diversity, National Grid provides ample opportunities for growth and meaningful contributions to the energy sector.
National Grid

Contact Detail:

National Grid Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land OT Security Associate Technician

✨Tip Number 1

Familiarise yourself with the specific operational technology (OT) protocols mentioned in the job description, such as Modbus and Profibus. Understanding these will not only help you during the interview but also demonstrate your genuine interest in the role.

✨Tip Number 2

Brush up on your knowledge of security monitoring tools like SIEM and IDS/IPS. Being able to discuss how these technologies work and their importance in critical national infrastructure will set you apart from other candidates.

✨Tip Number 3

Prepare to showcase your communication skills by thinking of examples where you've effectively conveyed complex information to non-technical stakeholders. This is crucial for the role, as you'll need to collaborate with various teams.

✨Tip Number 4

Since the role requires driving to the site, ensure you have a full clean driving licence and consider mentioning your reliability in transportation during the interview. This shows you're ready and committed to being on-site when needed.

We think you need these skills to ace OT Security Associate Technician

Cyber Security Fundamentals
Operational Technology (OT) Security
Incident Response
Threat Intelligence Analysis
Vulnerability Management
Disaster Recovery Planning
Network Intrusion Detection Systems (NIDS)
Security Information and Event Management (SIEM)
Industrial Networking Knowledge
Knowledge of IT and OT Protocols (e.g., Modbus, Profibus, HTTPS, DNS)
Familiarity with Purdue Architecture
Scripting Skills (e.g., Bash, PowerShell)
Microsoft and Linux Operating Systems Proficiency
Effective Communication Skills
Time Management
Organisational Skills

Some tips for your application 🫡

Understand the Role: Read the job description thoroughly to grasp the key responsibilities and required skills for the OT Security Associate Technician position. Tailor your application to highlight how your experience aligns with these requirements.

Highlight Relevant Experience: When writing your CV and cover letter, focus on your experience with operational technology (OT) security, incident response, and any relevant technical skills such as knowledge of industrial networking and scripting languages. Use specific examples to demonstrate your expertise.

Showcase Communication Skills: Since effective communication is crucial for this role, ensure your application reflects your ability to convey complex information clearly. Mention any experiences where you successfully communicated with diverse teams or stakeholders.

Proofread Your Application: Before submitting, carefully proofread your CV and cover letter for any spelling or grammatical errors. A polished application demonstrates attention to detail, which is essential in a security-focused role.

How to prepare for a job interview at National Grid

✨Understand the Role

Make sure you thoroughly understand the responsibilities of an OT Security Associate Technician. Familiarise yourself with operational technology security concepts, including incident response and vulnerability management, as these will likely be key discussion points during your interview.

✨Showcase Your Technical Skills

Be prepared to discuss your knowledge of industrial networking and common IT protocols. Highlight any experience you have with scripting languages like Bash or PowerShell, as well as your familiarity with security monitoring tools such as SIEM and IDS/IPS.

✨Demonstrate Communication Skills

As an excellent communicator, you should be ready to explain complex technical information in a way that is easily understood by non-technical stakeholders. Practice articulating your thoughts clearly and concisely, as effective communication is crucial for this role.

✨Prepare for Scenario-Based Questions

Expect scenario-based questions that assess your problem-solving abilities in real-world situations. Think about past experiences where you successfully managed cyber incidents or collaborated with teams to enhance security measures, and be ready to share those examples.

OT Security Associate Technician
National Grid
Location: Rochester
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