Cyber Security Lead

Cyber Security Lead / Security Architect

📍 Hybrid Working - split between remote and either Suffolk or London office

💰 Up to £575/day PAYE or £800/day Umbrella (DOE)

📄 Contract until end of year - with possibility of extension

We're looking for an experienced Cyber Security Lead / Security Architect to take ownership of cyber assurance activities across a large and complex enterprise environment. The role will focus on assuring deployed cyber infrastructure, security controls, governance, and future cyber developments across both physical and virtual environments.

You'll work across a broad cyber estate including end-user devices, cloud services, virtual infrastructure, access controls, SaaS platforms, and security tooling, ensuring compliance with recognised cyber security standards and frameworks while helping reduce operational risk across a critical programme environment.

Key Responsibilities

Lead cyber security assurance activities across deployed infrastructure and services

Review and assure cyber security designs and technical solutions from suppliers and third parties

Define and implement processes and procedures that support secure cyber operations

Ensure cyber risks, vulnerabilities and mitigations are effectively managed and reported

Support governance activities and provide cyber security reporting and dashboards

Evaluate threat and vulnerability landscapes and recommend improvements to reduce residual risk

Work closely with internal stakeholders, suppliers and delivery teams to ensure compliance with security requirements and frameworks

Support the development of assurance strategies, controls and operational standards

Essential Experience

Strong background in Cyber Security, Security Assurance or Security Architecture

Experience working with recognised frameworks and standards including ISO27001, NIST, CIS, GDPR and Cyber Essentials Plus

Familiarity with vulnerability management, penetration testing and cyber risk assessment methodologies

Hands-on knowledge of Microsoft security technologies including Defender, Defender for Cloud, Purview and Intune

Experience with device management, patching, conditional access and endpoint security

Strong stakeholder engagement and communication skills

Ability to work effectively within complex, fast-paced project environments

Eligible for or able to obtain SC Clearance

Desirable

Experience within regulated industries such as nuclear, energy, utilities, infrastructure or defence

Experience working within large-scale programmes or major project environments

Knowledge of NCSC and NPSA guidance and frameworks

Experience with governance, compliance and assurance reporting

This is an excellent opportunity for a cyber security professional looking to work on a nationally significant programme with long-term scope, high levels of responsibility and exposure to complex enterprise security challenges.

If interested please apply here and we'll be in touch very soon to discuss your application further.

Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants