Senior OT Cyber Security Consultant

Experis UK; Lincoln; Remote; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Training & certifications allowance

Home-based with site visits

Pension

Job summary

Experis UK is recruiting a senior OT cyber security consultant to lead client engagements across the UK. The role focuses on OT risk assessments, site surveys, and security programme development for critical infrastructure and manufacturing clients.

You will apply standards such as IEC 62443, NCSC CAF and NIST SP 800-82, working closely with the sales team on follow-on opportunities. UK-wide home-based with occasional site visits.

Qualifications

• Experience leading OT cyber risk assessments in industrial environments.
• Ability to lead client engagements and act as on-site expert.
• Strong report writing and attention to detail.

Responsibilities

• Lead OT cyber risk assessments on client sites (~80% of role).
• Conduct site surveys across IC, SCADA, DCS and OT environments.
• Develop improvement roadmaps and security programmes for clients.
• Apply IEC 62443, NCSC CAF, NIST SP 800-82, HSE OG86 in real environments.
• Collaborate with sales for follow-on opportunities and proposals.
• Option to implement countermeasures with in-house engineering support.

Skills

OT security

Lead client engagements

Report writing

Cyber risk assessments

Industrial protocols

Tools

IEC 62443

NCSC CAF

NIST SP 800-82

Job description

£70,000 to £90,000 | Home-based, UK-wide | Permanent

We're hiring for a specialist industrial cyber security consultancy that works with critical national infrastructure and manufacturing clients across the UK and abroad. They have more work than people, so this is a senior hire to lead client engagements from day one.

What You'll Be Doing

• Leading OT cyber risk assessments on client sites, which is around 80% of the role
• Carrying out site surveys across IC, SCADA, DCS and wider OT environments
• Building improvement roadmaps and security programmes to move clients from low maturity to a secure, resilient state
• Applying standards such as IEC 62443, NCSC CAF, NIST SP 800-82 and HSE OG86 to real industrial environments
• Working with the sales team on follow‑on opportunities and proposals
• Getting involved in implementing countermeasures if you want to (optional, as there's an in‑house engineering team)

What You'll Need

• Experience leading OT cyber risk assessments, not just taking part in them
• Ideally, consultancy experience. Strong end‑user candidates from CNI sites will also be considered
• A solid grounding in OT security: PLCs, RTUs, SCADA, DCS, industrial protocols, network security and countermeasures
• Experience in at least one industrial sector, such as energy, water, chemicals, oil and gas or manufacturing
• The confidence to lead client engagements and act as the expert on site
• Clear, accurate report writing and close attention to detail

Nice to have

• IEC 62443 experience or certifications (fully funded training is provided if not)
• CISSP, CySA+ or NCSC Chartered status

The package

• £70,000 to £90,000 depending on experience
• 5% of salary towards training and certifications each year
• Salary reviews every six months, with a clear skills matrix for progression
• Home-based, with site visits once or twice a month (usually 3 to 5 days, scheduled within working hours where possible)
• Flexible working hours, with all expenses covered
• Pension and the option to buy extra holiday