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Expleo is a trusted partner for end-to-end, integrated engineering, quality services, and management consulting for digital transformation. We help businesses harness unrelenting technological change to deliver innovations that provide a competitive advantage and improve everyday life worldwide.
As part of the Expleo Digital and Emerging Technology (DET) team, you will report to the Head of Cybersecurity and play an integral role in our growing Cybersecurity Practice. You will support the delivery of cybersecurity solutions across the Energy and Utilities sector, working with clients to protect critical infrastructure and improve their security posture in line with industry and regulatory expectations.
This delivery-focused role centres on infrastructure security, OT/IT boundary protection, and implementation of technical controls across regulated environments. You will contribute to assurance activities, support security design reviews, and assist in deploying cybersecurity measures that enable compliance and operational resilience.
The role provides the opportunity to work on complex infrastructure challenges, supporting the protection of nationally significant services through practical, standards-aligned cybersecurity delivery.
Responsibilities
- Deliver and support the implementation of cybersecurity solutions within the Energy and Utilities sector, focusing on infrastructure security and regulatory alignment.
- Perform security assessments and system hardening activities across cloud, on-premises, and hybrid infrastructure, including servers, endpoints, and network layers.
- Support the design, implementation, and validation of security controls at the OT/IT boundary, addressing segmentation, access control, logging, and monitoring.
- Contribute to security architecture and design reviews, providing input to ensure compliance with relevant regulations.
- Assisted in identifying risks and gaps in current security postures and developing actionable remediation plans in collaboration with client stakeholders.
- Support assurance activities by preparing technical documentation, implementation evidence, and audit artefacts.
- Collaborate with multidisciplinary teams, including infrastructure engineers, platform specialists, and client security personnel, to ensure integrated, secure solutions.
- Stay informed on sector-specific threats, vulnerabilities, and defensive techniques relevant to critical infrastructure and industrial environments.
- Operate professionally in regulated environments, maintaining a delivery-focused mindset across varied client contexts and stakeholder groups.
- Contribute to continuously improving internal methodologies, tooling, and knowledge sharing to strengthen Expleo’s Cybersecurity Practice and promote delivery excellence across all engagements.
- Operate effectively in remote and on-site client environments, maintaining professionalism, delivery discipline, and stakeholder trust.
Qualifications
- A degree (or equivalent experience) in Cybersecurity, Information Security, Computer Science, Network Engineering, or a related technical discipline.
- Recognised industry certifications in cybersecurity or infrastructure security (CompTIA, ISACA, ISC2, GIAC, Microsoft, CREST, Cisco Security, or equivalent).
- Certifications in security governance and frameworks: ISO/IEC 27001, NIST CSF, CAF, or CIS Controls.
- Additional vendor or platform-specific certifications (AWS, Azure, Microsoft, GCP, Palo Alto, CrowdStrike, Tenable) are advantageous.
- OT/ICS/SCADA-focused certifications: IEC 62443, GRID/GRID+ (SANS/GIAC), GICSP, or equivalent industrial cybersecurity training are desirable.
- Demonstrable commitment to continuous professional development aligned with emerging technologies, infrastructure security, and evolving cyber threat landscapes.
Essential Skills
- Strong understanding of core cybersecurity principles, risk management, and control implementation in critical infrastructure environments.
- Hands-on experience with infrastructure security across cloud, on-premises, and hybrid environments.
- Proven ability to implement and assess security controls at the OT/IT boundary, including segmentation, firewalls, monitoring, and remote access safeguards.
- Familiarity with enterprise security tooling, including vulnerability management platforms, endpoint protection, SIEM, identity and access management, and logging solutions.
- Knowledge of regulatory frameworks and industry standards relevant to the E&U sector.
- Ability to conduct technical risk assessments, identify security gaps, and support the development of remediation and improvement plans.
- Strong analytical and troubleshooting skills, with the ability to work independently and respond effectively in live delivery environments.
- Excellent communication skills, with the ability to clearly explain technical findings to technical and non-technical stakeholders.
- High-quality documentation skills for producing implementation artefacts, assurance evidence, and technical guidance for client use.
- Professionalism, adaptability, and reliability in delivering within regulated, multi-stakeholder client environments.
Desired Skills
- Understanding of operational technology (OT) and industrial control systems (ICS), including common architectures, protocols, and associated security challenges.
- Familiarity with security practices in SCADA environments and industrial networks, including secure remote access, DMZ configurations, and asset visibility solutions.
- Experience with regulatory engagement, audits, and providing evidence to demonstrate compliance with frameworks.
- Exposure to IT/OT convergence challenges and experience implementing or advising on segmentation and trust zone strategies.
- Awareness of sector-specific threat actors, attack techniques, and vulnerability trends.
- Ability to contribute to security design and architecture discussions within complex programs and technical environments.
Experience
- Hands-on experience in cybersecurity engineering, infrastructure security, or a related technical role, ideally within regulated or critical infrastructure sectors.
- Demonstrable experience implementing technical controls and supporting system hardening across IT infrastructure, including cloud, on-premises, and hybrid environments.
- Experience contributing to security assurance, compliance, or risk management activities in Energy and Utilities or other regulated domains.
- Proven delivery of security support at the OT/IT boundary, including collaboration with operations, engineering, or control system teams.
- Familiarity with the deployment and operational use of enterprise security tooling, vulnerability management, and identity/access management platforms.
- Track record of working directly with clients or internal stakeholders to identify security risks, support solution implementation, and produce high-quality technical documentation.
- Experience operating in multi-stakeholder environments, balancing priorities across delivery teams, internal cybersecurity functions, and client leadership.
- Experience supporting incident response, resilience testing, or disaster recovery planning in critical infrastructure contexts.
- Experience working in regulated Energy and Utilities environments, particularly in gas, water, or electricity sectors.
What Do I Need Before I Apply
- You must have the right to work in the UK.
- A strong foundation in cybersecurity engineering or infrastructure security, with practical delivery experience.
- A proactive and adaptable mindset, with the ability to work independently across diverse client environments. A passion for delivering high-quality, standards-aligned cybersecurity solutions that make a tangible impact.
Benefits
- Collaborative working environment – we stand shoulder to shoulder with our clients and ourpeers through good times and challenges
- We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects
- ExpleoAcademy - enables you to acquire and develop the right skills by delivering a suite of accredited training courses
- Competitive company benefits
- Always working as one team, our people are not afraid to think big and challenge the status quo
- As a Disability Confident Committed Employer we have committed to:
- Ensure our recruitment process is inclusive and accessible
- Communicating and promoting vacancies
- Offering an interview to disabled people who meet the minimum criteria for the job
- Anticipating and providing reasonable adjustments as required
- Supporting any existing employee who acquires a disability or long term health condition, enabling them to stay in work at least one activity that will make a difference for disabled people
“We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age”.
We treat everyone fairly and equitably across the organisation, including providing any additional support and adjustments needed for everyone to thrive
Seniority level
- Seniority levelMid-Senior level
Employment type
Job function
- Job functionInformation Technology
- IndustriesIT Services and IT Consulting
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