Cyber Security Lead Horsham ·

Ceres Power Holdings Plc; Horsham; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

Ceres Power Holdings Plc in the United Kingdom is seeking a Cyber Security Lead to own and drive the security programme, ensuring risk-based controls and governance across Microsoft 365, cloud services, and supplier ecosystems.

You will lead incident response, vulnerability management, audits, and security awareness initiatives, coordinating with procurement, legal, and IT to protect data and IP as the business scales its clean technology platforms.

Qualifications

• Knowledge of information security best practices and standards (ISO 27001, Cyber Essentials)
• Hands‑on experience with cloud services (Office 365, Azure, AWS) and security tooling (MDM/EMS/Intune/Airwatch)
• Experience managing a SOC and conducting security audits and penetration testing

Responsibilities

• Own and lead the cyber security programme, ensuring risk-based controls and governance across the organisation
• Coordinate vulnerability management, incident response, and security assessments to reduce risk
• Develop and maintain information security policies, standards and supporting documentation
• Collaborate with procurement, legal, operations and technical teams to manage third‑party cyber risk
• Act as primary technical contact for outsourced SOC and drive security awareness across the business

Skills

Security governance

ISO 27001

Cyber Essentials

Office 365

Azure

AWS

Entra P2

Azure Rights Management

DLP

MDM

EMS

Intune

Airwatch

SOC management

Audit processes

PEN testing

Vulnerability scanning

Networking security

Project management

Tools

Office 365

Azure

AWS

Entra P2

Azure Rights Management

DLP

MDM

EMS

Intune

Airwatch

Job description

Ceres Power is a global leader in solid oxide technology, driving the clean energy revolution. Our steel-supported fuel cell and electrolyser technology gives partners a decade of development advantage, accelerating innovation in power generation, green hydrogen, and distributed power solutions for data centres and industry.

Cyber security is a critical part of protecting Ceres' people, systems, data and intellectual property as we continue to grow through technology innovation and global licensing partnerships. As cyber threats become more sophisticated and regulatory expectations continue to evolve, we are looking for an experienced Cyber Security Lead to take ownership of our cyber security programme and help ensure our technology environment remains secure, resilient and compliant.

This is a hands‑on role that combines technical delivery, operational support and stakeholder engagement. Acting as Ceres' cyber security subject matter expert, you will lead a structured, risk‑based security programme, ensuring that security controls, technologies, policies and processes are effective, well‑governed and aligned with the needs of the business

Working closely with the Technical Operations team and key stakeholders across the organisation, you will be responsible for the implementation, management and continual improvement of our cyber security capabilities. This includes ownership of core Microsoft 365 security technologies, enhancing email security controls, supporting wider infrastructure security, and ensuring security considerations are embedded into projects, systems and business processes from the outset.

You will play a leading role in identifying and reducing cyber risk across the organisation through vulnerability management, penetration testing, security assessments and the effective monitoring of threats and security events. Acting as a key technical contact during cyber security incidents, you will help coordinate investigation, reporting, escalation and remediation activities to minimise business risk and drive continuous improvement

The role will also be responsible for maintaining and developing information security policies, standards and supporting documentation, ensuring a consistent and practical approach to governance, risk management and compliance. You will support internal and external audits, own cyber security‑related actions and remediation plans, and ensure findings are tracked through to completion.

As Ceres continues to expand its licensing and supplier network, you will work closely with procurement, legal, operational and technical teams to assess and manage cyber security risks associated with third‑party suppliers and licensing partners. This includes supporting onboarding activities, conducting security reviews and ensuring appropriate controls are in place across both internal and third‑party environments.

You will also act as the primary technical contact for our outsourced Security Operations Centre (SOC), ensuring an effective partnership is in place to support monitoring, threat detection and incident response activities. In addition, you will help foster a strong security culture across the business through cyber security awareness initiatives, guidance and training.

This is an excellent opportunity for a cyber security professional who enjoys taking ownership, influencing stakeholders and delivering practical security improvements that directly support the growth and success of a pioneering clean technology business.

Knowledge and Skills Required for the Role:

• Knowledge of information security best practices and certification processes like ISO 27001 and Cyber Essentials
• Technical knowledge of cloud services like Office 365, Azure, AWS, Entra P2, Azure Rights Management, and DLP
• Experience with the implementation of security tools like MDM, EMS, Intune, and Airwatch
• Experience working with or managing a SOC
• Detailed knowledge of audit processes and procedures
• Hands‑on experience in a 3rd line operational role
• Understanding of security testing procedures like PEN testing and vulnerability scanning
• Knowledge of networking and security best practices
• Strong project management skills