Latest security architect Jobs

Infrastructure Engineer

This role involves hands-on design, implementation, and support of core IT infrastructure systems including Windows, networking, cloud, and backups, with a strong focus on security controls and compliance such as ISO 27001. As a key member of a small IT team, the engineer will act as a 3rd line escalation point and contribute to both operational support and project-based improvements. The position offers technical ownership and exposure to a broad technology stack within a stable, long-standing organisation.

Rise Technical Recruitment Ireland, Alba / Scotland, ZE2 9GA, United Kingdom £30,000 – £50,000 pa

On-site Permanent

Red Team Lead

As a Red Team Lead, you will design and execute sophisticated adversary emulation engagements, researching emerging threats and translating real-world attacker behavior into impactful red team operations. You will lead complex engagements, develop realistic attack scenarios, and support client advisory, while maintaining high technical and ethical standards.

Oscar Technology London, United Kingdom £70,000 – £90,000 pa

Remote Permanent

Site Reliability Engineer

This role involves ensuring the reliability and scalability of ConnellsX, an internal developer platform built on Microsoft Azure. The engineer will establish SRE practices including monitoring, incident response, and toil reduction through automation. Collaboration with cross-functional teams focuses on improving system observability and enabling faster, safer development workflows.

Connells Group HQ Mk78Jt, MK7 8JT, United Kingdom £40,000 – £55,000 pa

Hybrid Permanent

Vulnerability Researcher (Software)

As a Vulnerability Researcher, you will conduct deep technical research into complex software systems, identifying vulnerabilities and developing exploits. You will work with multidisciplinary teams to design prototypes, test hypotheses, and document findings that influence future cyber capabilities.

Searchability NS&D Cheltenham, United Kingdom £65,000 – £85,000 pa

Hybrid Permanent Clearance Required

Red Team Engineer

This role involves hands-on technical delivery of red team engagements, including attack path design, threat scenario planning, and phishing campaigns. You'll work closely with a Technical Director to develop your skills in offensive security, focusing on real-world attacker techniques and client reporting.

Oscar Technology London, United Kingdom £55,000 – £60,000 pa

On-site Permanent

Technical Engineer - Wimbledon- c

This role involves supporting and maintaining client cloud infrastructure and security environments, creating automation scripts, and managing firewall, router, and security updates. You'll work in a small, highly technical team with significant autonomy and exposure to modern technologies.

Nigel Frank International South West London, United Kingdom £45,000 pa

On-site Permanent

Penetration Tester

This role involves conducting hands-on penetration tests across web applications, APIs, infrastructure, and cloud environments using industry-standard methodologies. The Penetration Tester will identify vulnerabilities, produce risk-based reports, support remediation efforts, and collaborate with development and security teams to embed security into project lifecycles. The position also includes contributing to purple teaming exercises, improving internal testing practices, and staying current with evolving threats and offensive techniques.

VIQU IT Recruitment Rh121Rd, RH12 1RD, United Kingdom £50,000 – £60,000 pa

Hybrid Permanent

Senior CIRT / Threat Intel Analyst

This role involves leading cyber incident response and threat intelligence activities, focusing on detecting, analyzing, and responding to security incidents across endpoints, networks, cloud, and SaaS environments. The analyst will integrate threat intelligence into investigations, develop incident response playbooks, tune detections, and produce actionable intelligence for both technical and executive audiences. Collaboration with SOC teams and participation in global information-sharing initiatives are key aspects of the position.

eFinancialCareers London, United Kingdom

Hybrid Permanent

Senior C++ Engineer

This role involves developing high-performance, mission-critical software systems in C++ within secure environments. Engineers will work on ultra-low latency systems processing large data volumes, with a strong focus on reliability, modern C++ practices, and Linux-based development. The role emphasizes technical ownership, collaboration, and continuous learning in a security-cleared setting.

Ncounter Gloucestershire, United Kingdom £70,000 – £90,000 pa

On-site Permanent Clearance Required

Embedded Software/Firmware Engineer

This role involves developing, testing, and maintaining high-integrity embedded software and firmware across multiple product lines. You will work closely with electronics, mechanical, and systems engineers to ensure robust, traceable software solutions and contribute to structured test and validation strategies.

Pearson Whiffin Recruitment Group Sandwich, United Kingdom £45,000 – £50,000 pa

On-site Permanent Clearance Required

IT Technician

This role involves supporting the day-to-day management and security of a cloud environment, including administration of Microsoft 365, user account management, and troubleshooting access issues. The position is fully remote and requires hands-on experience with Microsoft, Linux, iOS, and Android.

Sanderson Bristol, United Kingdom £25,000 pa

Remote Permanent

Technical Estimator

As a Technical Estimator, you will prepare detailed cost estimates and technical proposals for electronic security systems, working closely with commercial, operational, and project delivery teams. Your role involves assessing risks, optimizing value, and ensuring compliance with industry standards and business objectives.

J B Corrie & Co Ltd M241Gs, M24 1GS, United Kingdom £42,000 – £47,000 pa

Hybrid Permanent Clearance Required

Product Executive

The Product Executive will work closely with developers and technical leads to stay up-to-date with new product features, test these features, and provide feedback. They will also assist in release planning, liaise with the Product Marketing team, and create product enablement materials. This role requires strong communication, organizational, and documentation skills.

Darktrace Cambridge, CB2 3BJ, United Kingdom

Hybrid Permanent

Head of Software

This role involves leading a multidisciplinary software department, managing senior team members, and driving technical excellence across various domains including defense, healthcare, and space. The Head of Software will focus on process improvement, technical oversight, and strategic collaboration with senior management.

Morgan McKinley Cambridge, United Kingdom

Permanent Clearance Required

Onestream System Administrator

About Us Sophos is a cybersecurity leader defending 600,000 organizations globally with an AI-driven platform and expert-led services. Sophos meets organizations wherever they are in their security maturity and grows with them to defeat cyberattacks. Its solutions combine machine learning,...

Sophos United Kingdom

Remote