OT Architect
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 5h ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
First seen 9d ago
No source stated a posting date, so this is when the listing first reached us — which is a floor, not the real age. Last seen at its source just now.
We have tracked this listing since 23 Oct 2026 (9 days). The employer's own board has carried it every time we have read it, most recently just now.
Is it remote?
GBR Remote
That is the location the employer filed this posting under. Quoted as written — we do not re-word the source's own location.
Who may apply?
United Kingdom
The description states no restriction of its own. This is the source's own tag.
Pay not stated
Similar roles pay £77.6k–131.8k/yr
Middle 50% of 108 listings that do state pay — Engineering · all levels · United Kingdom · GBP/year. This employer has published no salary; this is what comparable listings we hold disclose, never converted between currencies or periods. How this is calculated.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
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Pinpoint employer's own board first seen 9d ago · last seen just now
The listing
The opportunity
NCC Group is looking for an experienced OT Cybersecurity Architect to join our fast-growing global OT practice. You will help critical national infrastructure clients across energy, water, manufacturing, rail and other operational environments design secure, resilient architectures that protect services relied upon by millions of people.
Key Responsibilities
· Lead architecture discovery, requirements and design workshops with OT engineers, IT teams, vendors and technology stakeholders.
· Produce clear, auditable architecture artefacts, including principles, requirements, HLDs, LLDs, network diagrams, data flows, firewall rule specifications and bills of materials.
· Assess technology options and translate operational, safety and security needs into pragmatic design decisions.
· Provide hands-on technical assurance during implementation, testing and acceptance.
· Contribute to practice development, reusable methodologies, proposals and the development of junior colleagues.
Location and travel
This is a UK-based hybrid role, with travel to national client sites expected for approximately 20% of the time. International travel or support may also be required by agreement.
Skills, Knowledge & Expertise
· Demonstrable experience designing and assuring OT/ICS security architectures in live operational environments.
· Strong knowledge of OT architecture patterns, segmentation, zones and conduits, secure remote access, identity and access models, and traffic flow analysis.
· Hands-on technical depth across firewalls, switching, routing, virtualisation and security platforms in OT or converged IT/OT environments.
· Experience taking architecture from concept through detailed design, implementation support and acceptance.
· Working knowledge of IEC 62443, including security levels, foundational requirements and defence-in-depth.
· Understanding of OT constraints, including availability, safety, legacy systems and restricted change windows.
· Experience in rail, automotive, renewables, manufacturing or comparable OT environments.
Useful additional experience
· OT technologies and protocols, including HMI, PLC, RTU, DCS, SCADA, IEC 61850, DNP3 and Modbus/TCP.
· NIST SP 800-82, NIST 800-53, CIS or STIG standards.
· Vendor evaluation, procurement support, zero-trust principles or software-defined segmentation in OT.
· Relevant certifications such as IEC 62443 Cybersecurity Expert, GICSP, GRID or equivalent.
Job Benefits
- Flexible Working: Balance your work and personal life with our flexible working options.
- Generous Holiday Allowance: Enjoy 25 days of holiday, plus bank holidays, with the option to buy up to 5 additional days of annual leave.
- Financial & Investment Benefits: Enjoy peace of mind with our Pension, Life Assurance, and Share Save Scheme.
- Community & Volunteering Programmes: Make a difference in your community with our volunteering opportunities.
- Special Time Off: Take time off for those big moments in life, like getting married/entering into a civil partnership, becoming a grandparent, and welcoming home a new pet.
- Family Planning: Benefit from our generous maternity and paternity leave, as well as time off and support for those undergoing fertility treatments.