Cyber Security Jobs

Network Infrastructure & Security Engineer

This role involves managing and improving cloud and on-premises infrastructure, handling systems, networking, and security tasks. Responsibilities include supporting AWS/Azure, maintaining Windows/Linux systems, managing networking equipment, implementing monitoring and backup solutions, and administering Microsoft 365.

Proactive Appointments Milton Keynes, United Kingdom £60,000 pa

Hybrid Permanent

Network & Infrastructure Engineer

This role involves managing and improving cloud and on-premises infrastructure, handling systems, networking, and security tasks. Responsibilities include supporting AWS/Azure, maintaining Windows/Linux systems, managing networking equipment, implementing monitoring and backup solutions, and administering Microsoft 365.

Proactive Appointments Milton Keynes, United Kingdom £60,000 – £65,000 pa

Hybrid Permanent

Cyber Platforms Engineer

The Cyber Platforms Engineer will design, implement, and manage data governance, information protection, and compliance capabilities across Microsoft 365, Azure, and other data platforms. Key responsibilities include data classification, sensitivity labelling, DLP controls, and stakeholder engagement to ensure data is discoverable, protected, and used in line with regulatory requirements.

Connells Group HQ Mk78Jt, MK7 8JT, United Kingdom

On-site Permanent

Windows Server Network Engineer

This role involves hands-on work building and configuring Windows Server 2016 and 2019 environments, managing Active Directory and Exchange, and expanding a Cisco-based network and VMware virtual infrastructure within a secure datacentre setting. The engineer will work directly on server and network systems, not in a helpdesk capacity, with exposure to enterprise-grade networking and security technologies. Some travel is required, and the position supports a global organisation’s critical IT infrastructure.

InterAct Consulting Wellingborough, NN8 1AF, United Kingdom £50,000 – £55,000 pa

On-site Permanent Clearance Required

Principal Solution Architect – Defence & National Security

As a Principal Solution Architect, you will lead the design and delivery of secure enterprise and solution architectures for defence and national security clients. You will split your time between innovating future solutions and providing leadership for short-term customer initiatives, ensuring successful delivery and client satisfaction.

Sopra Steria Hp27Ah, HP2 7AH, United Kingdom

Hybrid Permanent Clearance Required

Senior SOC Analyst Level 2

This role involves monitoring, triaging, and investigating real-time security alerts within a high-stakes SOC environment focused on national defence and critical infrastructure. The analyst will use SIEM tools, endpoint and network data to detect and respond to advanced threats, aligning detection strategies with MITRE ATT&CK. The position operates on a 24/7 shift pattern and plays a key role in incident response and threat improvement within a highly secure setting.

Fynity Hemel Hempstead, Hertfordshire, HP1 1EW, United Kingdom £50,000 – £58,000 pa

On-site Permanent Clearance Required

SOC Shift Lead

This role involves leading and mentoring a team of SOC analysts within a 24/7 security operations environment, serving as the primary escalation point for high-severity incidents. The position combines hands-on technical work with operational leadership, including triaging alerts, conducting in-depth investigations into malicious activity, and improving detection rules using the MITRE ATT&CK framework. The candidate will also contribute to incident response playbooks and represent the SOC in operational meetings, ensuring robust protection across critical client infrastructures.

Sopra Steria Hemel Hempstead, HP1 1EW, United Kingdom £65,000 – £75,000 pa

On-site Permanent Clearance Required

Network Systems Engineer / Infrastructure Administrator / 3rd Line – Daventry

Network Systems Engineer / Infrastructure Administrator / 3rd Line Engineer / Servers / Server Administration / Windows Server / physical server / virtual environments (MS Server, MS Exchange, MS Active Directory (inc DNS, DHCP, GPOs) / Hyper-V, SQL, MS Failover...

MYO Talent Daventry, United Kingdom £40,000 – £50,000 pa

Senior Installation and commissioning Engineer

Fantastic work enviromentGreat opportunities for training and progressionExcellent stability and long term employees Job Description – Senior Installation EngineerThis excellent company are looking for an experienced Security Installation & Commissioning Engineerto join the team.As a business we design, install, maintain,...

Complete Security Recruitment Sg13Es, SG1 3ES, United Kingdom £48,000 – £52,000 pa

Real-Time Systems Software Engineer

This role involves writing C++ on Linux, working with high-speed data pipelines and multi-threaded architectures for advanced defence systems. You'll own problems, make decisions, and see the impact of your work in real-world applications.

Cirrus Selection Sg12Da, SG1 2DA, United Kingdom £55,000 – £65,000 pa

On-site Permanent Clearance Required

Software Engineer - Data Science

This role involves working on a classified concept programme, shaping future products by building scalable systems with embedded data science capabilities. You'll work with complex datasets and translate experimental ideas into production-ready solutions, collaborating with a team of skilled professionals.

Cirrus Selection Sg12Da, SG1 2DA, United Kingdom £55,000 – £65,000 pa

On-site Permanent Clearance Required

Find & Fix Vulnerability Engineer

This role involves managing the full lifecycle of vulnerability remediation, from identification to verification and closure, across both cloud and on-prem environments. You will work closely with cross-functional teams to ensure secure practices are embedded, using tools like Microsoft Defender for Cloud, AWS Inspector, and Terraform.

Opus Recruitment Solutions Stevenage, Hertfordshire, United Kingdom £55,000 pa

Hybrid Permanent Clearance Required

Cyber Vulnerability Engineer

This role involves identifying, prioritising, and driving the remediation of security vulnerabilities across cloud and on-prem environments. You will work closely with engineering teams to fix issues, use tools like Defender for Cloud, AWS Security Hub, and Nessus, and improve overall security posture through hands-on activities.

Oscar Technology Stevenage, United Kingdom £40,000 – £50,000 pa

Remote Permanent Clearance Required

DevSecOps Engineer

This role involves identifying, prioritising, and remediating vulnerabilities across cloud and on-prem environments. You will work closely with engineering teams to ensure risks are properly fixed, using DevOps and Infrastructure as Code practices to deliver scalable solutions.

Oscar Technology Stevenage, United Kingdom £40,000 – £50,000 pa

Hybrid Permanent Clearance Required

Algorithms Engineer

As an Algorithms Engineer, you will develop and refine algorithms for advanced RF seeker and sensing applications, conduct technical investigations, and integrate algorithms into system models. You will work in a multidisciplinary team to solve complex engineering problems and contribute to the development of high-performance systems in the defence sector.

Electus Recruitment Stevenage, United Kingdom £45,000 – £58,000 pa

Hybrid Permanent Part-time Clearance Required