Senior Cyber Security Consultant
il y a 2 jours
Solihull
About us nxzen is a global technology, consulting, and engineering partner advancing the national infrastructure that society depends on. Our mission is to empower energy, utilities, and national infrastructure providers to deliver safer, smarter, and more resilient operations. Backed by leading investors, we combine deep domain expertise with engineering excellence and digital innovation to deliver measurable impact. Our solutions include NNNCo’s national-scale IoT networks, EAD’s turnkey renewable and grid energy systems, Digital Twin Simulation for real-time predictive optimisation, and N2N’s connected infrastructure platform for end-to-end asset intelligence. We help operators modernise, connect, and optimise national systems to meet performance, compliance, and net-zero goals without compromise. The role Senior OT Security Consultant Location: UK (Hybrid) Cyber Security Reports to: Head of Cyber Security We are seeking a highly experienced Senior OT Security Consultant to lead and deliver complex security engagements across UK Energy & Utilities clients. This senior role will be responsible for shaping security strategy, leading technical delivery, influencing senior stakeholders, and mentoring consultants across IT/OT security domains. The ideal candidate brings deep OT/ICS expertise, an understanding of energy and utility sector regulations, strong consulting capability, and the ability to operate confidently at both technical and executive levels. ABOUT THE ROLE OT Security Advisory Leadership · Lead OT and ICS security strategy development, maturity assessments, and architectural reviews. · Advise senior client stakeholders on governance, risk, resilience, and regulatory obligations. · Define OT security improvement roadmaps and investment cases. Technical OT / ICS Delivery Leadership · Lead design and validation of secure OT architectures including segmentation, firewalls, DMZs, and remote access. · Oversee OT vulnerability assessments, configuration reviews, and secure integration of ICS solutions. · Provide senior guidance during OT cyber incidents including containment, forensics, and recovery. Regulatory & Compliance Expertise · Interpret and apply NIS/NISR, Ofgem/Ofwat expectations, NCSC CAF and IEC62443 requirements. · Support audit readiness, evidence collation, and remediation planning. Client Engagement & Delivery Excellence · Own client relationships and act as senior point of escalation. · Produce and review high-quality deliverables including designs, assessments and reports. · Lead proposals, pre‑sales activities and contribute to business development. · Mentor and coach junior consultants. Essential Experience · Extensive experience with OT, ICS, SCADA, DCS and industrial networking. · Proven track record delivering and leading OT security engagements in Energy & Utilities. · Expert understanding of ICS protocols (Modbus, DNP3, IEC‑104, OPC/UA etc.). · Significant experience designing and reviewing OT architectures using the Purdue Model. · Strong familiarity with major OT/ICS vendors (Siemens, ABB, GE, Schneider Electric). · Experience applying frameworks such as IEC62443, NIST CSF, NIST 800‑82, NCSC CAF. · Senior-level stakeholder management experience. Certifications – Highly Desirable · OT/ICS Security/Safety Certifications · ISA/IEC 62443 Cybersecurity Expert · GIAC: GRID, GICSP, GCIP · TÜV Certified Cyber Security or Functional Safety (preferred) General Security Certifications · CISSP, CISM, ISO 27001 Lead Implementer/Lead Auditor Engineering Certifications · CCNA/CCNP or equivalent networking certification (optional) Personal Attributes · Strategic thinker with ability to influence senior stakeholders. · Strong analytical and problem-solving capability. · Excellent communication and documentation skills. · Ability to work flexibly across industrial client environments. Nice to have · Technical Leadership Skills · Experience with OT IDS technologies (e.g. Claroty, Nozomi, Dragos). · Knowledge of secure ICS engineering lifecycle and OT asset management. · Experience leading OT penetration testing or red‑team style engagements. · Understanding of IoT/IIoT integrations and cloud‑connected OT systems. · Consulting & Leadership Skills · Ability to translate complex OT risks into business‑aligned recommendations. · Strong workshop facilitation and presentation capability. · Ability to lead multidisciplinary teams and manage complex client programmes. Why join us? At nxzen, we’re more than designers, engineers, or consultants - we’re one global team with one shared purpose: to solve what matters and stand by it. For us, delivery isn’t the end; it’s the expectation. We stay accountable long after the work is done, because integrity, care, and lasting impact are at the heart of how we show up - for each other, for our customers, and for the systems we serve. Joining nxzen means becoming part of a company that is advancing the national infrastructure society depends on. Backed by leading investors and powered by domain expertise, engineering excellence, and digital innovation, we help energy, utilities, and infrastructure providers deliver safer, smarter, and more resilient operations. Here, you’ll: 1. Take on complex, high-stakes challenges that matter — from shaping the energy transition to strengthening critical national systems., 2. Learn from and collaborate with global leaders and specialists across consulting, engineering, and technology., 3. Be trusted to deliver and supported to grow, with opportunities to sharpen your skills and expand your impact., 4. Join a team that values fresh thinking and real follow-through, where your creativity will make a measurable difference. This is work that lasts. Work that powers communities, protects critical networks, and accelerates progress toward net-zero. And it starts with people like you. Benefits & perks We want you to thrive both at work and in life. Here’s what we offer to support your wellbeing and career: · Pension scheme with a 5% employer contribution and 5% employee contribution, helping you build a secure future. · Employee Assistance Programme (EAP) providing confidential support when you need it most. · EV scheme to help you drive toward a greener future. · Life assurance at 4x your salary, giving you and your loved ones peace of mind. · Private healthcare (for Level 3+ employees) to help you take care of yourself. · 25 days’ annual leave + 8 bank holidays so you can rest, recharge, and spend time on what matters. · LinkedIn Learning access, giving you thousands of courses to sharpen your skills and fuel your growth. · Free on-site parking, making your commute that bit easier. Our hiring process We know your time is valuable, so we keep our process clear and straightforward: 1. Application review – Our team will assess your CV and portfolio against the role requirements., 2. Initial interview – A short call to understand your experience, skills, and motivations., 3. Practical task – You may be given a short exercise to showcase your ability., 4. Final interview – Meet with team leaders and Client Partners to discuss collaboration, technical skills, and fit., 5. Offer & onboarding – If successful, you’ll receive an offer and begin your journey with nxzen We value fairness, speed, and respect at every stage of the process. You’ll always know where you stand, and we’ll provide feedback along the way. Diversity & inclusion statement As a global technology, consulting, and engineering partner, we are committed to fostering an inclusive environment where every individual is valued and empowered to contribute their unique talents. We embrace diversity in all its forms – across gender, ethnicity, culture, and experience – and are dedicated to creating a workplace that reflects the communities we serve. Together, we drive innovation and deliver excellence to our clients.