Infrastructure & Cyber Security Specialist

Adecco (Portugal); Essex; Remote; GBP 50,000 - 61,000; Full time

Benefits offered by this job

25 days holiday

Company pension

Life assurance

Employee Assistance Programme

Training & professional development

Job summary

Adecco is recruiting an Infrastructure & Cyber Security Specialist for a predominantly remote role in the UK, with occasional travel to Essex. The position focuses on strengthening cyber security across the IT estate, handling security operations, incident response, and governance initiatives.

The successful candidate will implement and manage Microsoft security technologies, engage with audits and compliance, and drive improvements across processes and controls.

Qualifications

• Minimum 3 years in Cyber Security or Information Security.
• Hands-on with Microsoft security technologies and cloud security.
• Experience in incident response and vulnerability management.
• Knowledge of security frameworks and compliance standards.

Responsibilities

• Manage cyber security controls across IT infrastructure.
• Monitor, investigate and respond to security incidents.
• Support SIEM, endpoint security and monitoring solutions.
• Coordinate vulnerability remediation and audits.
• Enforce security policies and best practices.
• Engage with stakeholders to improve security posture.
• Assist with business continuity and risk management.

Skills

Cyber security

Infrastructure security

Incident response

Threat detection

Security auditing

Stakeholder engagement

Communication skills

Tools

Microsoft 365 Security

Entra ID

Defender

Purview

Intune

Azure Security

Job description

Infrastructure & Cyber Security Specialist

Salary: Up to £55,000 DOE

Location: Remote (UK) with occasional travel to Essex

Full Time Permanent

Are you passionate about cyber security and looking for an opportunity to make a real impact within a growing organisation?

We are seeking an experienced IT Infrastructure Security Specialist to join a well-established business and play a key role in maintaining, enhancing and evolving the company's cyber security posture. This is an excellent opportunity for someone who enjoys a varied role spanning security operations, infrastructure security, compliance, incident response and security improvement projects.

This position is predominantly remote, with occasional travel to the company's Essex office when required.

Key Responsibilities

• Manage and enhance cyber security controls across the IT infrastructure.
• Monitor, investigate and respond to security incidents and threats.
• Support the implementation and management of SIEM, endpoint security and monitoring solutions.
• Conduct vulnerability assessments and coordinate remediation activities.
• Implement and maintain Microsoft security technologies including Entra ID, Defender and Purview.
• Develop and enforce security policies, standards and best practices.
• Support internal and external audits, compliance activities and security assessments.
• Ensure alignment with recognised security frameworks and regulatory requirements.
• Work closely with internal stakeholders and third-party providers to improve overall security posture.
• Assist with business continuity, disaster recovery and risk management initiatives.
• Identify opportunities for continuous improvement across security processes and controls.

Skills & Experience Required

• Minimum 3 years' experience within Cyber Security, Infrastructure Security or Information Security.
• Strong hands‑on experience with Microsoft security technologies including:
  • Microsoft 365 Security
  • Microsoft Entra ID
  • Microsoft Defender
  • Microsoft Purview
  • Intune
  • Azure Security
• Experience with incident response, threat detection and remediation.
• Knowledge of SIEM technologies and security monitoring.
• Vulnerability management experience and familiarity with related tooling.
• Understanding of security frameworks and standards such as NIST, ISO 27001, Cyber Essentials or NIS2.
• Experience supporting audits, compliance and governance activities.
• Strong analytical and problem‑solving skills.
• Excellent communication skills with the ability to engage technical and non‑technical stakeholders.

Desirable Experience

• Microsoft Sentinel experience.
• DLP (Data Loss Prevention) and data classification.
• Experience within manufacturing, industrial or operational technology (OT) environments.
• Relevant certifications such as Security+, SC-200, SC-300, AZ-500, CISSP, CISM or similar.

What's On Offer

• Salary up to £55,000, depending on experience.
• Predominantly remote working.
• 25 days holiday plus bank holidays.
• Company pension scheme.
• Life assurance and company sick pay.
• Employee Assistance Programme.
• Ongoing training and professional development.
• Opportunity to work with modern security technologies and influence cyber security strategy.
• Supportive and collaborative IT environment.

Equal Opportunities

Our client is committed to creating an inclusive workplace and welcomes applications from candidates of all backgrounds. Selection will be based solely on skills, experience and suitability for the role.

Right to Work

Applicants must have the right to work in the UK. Unfortunately, sponsorship is not available for this position.