Latest Application Security Jobs

Head of Information Security

This role involves leading the information and cyber security strategy, setting security policies, and working closely with technical teams to identify and remediate security gaps. The position focuses on hands-on technical expertise and influencing senior stakeholders to manage security risks effectively.

Endeavour Recruitment London, United Kingdom £115,000 – £125,000 pa

Sr. Security Researcher , DEU)

Conducts advanced vulnerability research and exploit development, focusing on analyzing patches, identifying zero-day vulnerabilities, and building automated tools for large-scale data analysis. Publishes findings internally and externally while supporting other teams with technical expertise. Works remotely within a global cybersecurity intelligence team.

CrowdStrike Alba / Scotland

Remote Permanent

Sr. Security Researcher , DEU)

Develop automated tools for large-scale data analysis, conduct vulnerability research, and reverse engineer exploits across Windows, Linux, and other platforms. Support threat intelligence efforts by identifying malicious infrastructure, analyzing patches, and reproducing 0-day exploits. Publish findings internally and externally while collaborating with intelligence teams to deliver actionable technical insights.

CrowdStrike England

Remote Permanent

Infrastructure Engineer — Identity, Office 365, Security & Cloud Platforms

This role involves deep technical management of identity, cloud security, and Microsoft 365 platforms, with ownership of Conditional Access, Azure AD, and Microsoft Defender. The engineer will lead cloud security investigations, manage AVD and Intune deployments, and resolve complex identity and messaging issues. Responsibilities include hardening systems to CIS standards, responding to breaches, and creating runbooks to support the Service Desk.

G-TECH TALENT LIMITED Bolsover, United Kingdom £40,000 – £45,000 pa

Founding Engineer

As a Founding Engineer, you'll work across the full stack to build a security-focused product using canaries that detect intrusions in cloud environments. You'll collaborate closely with founders and engineers, shipping daily using C#, .NET Core 10, Terraform, and HTMX. The role emphasizes high-quality, rapid development in a tight-knit, office-based team with strong engineering practices and AI-assisted tooling.

Tracebit London, United Kingdom

On-site Permanent

Senior Technical Specialist

This role involves monitoring and responding to cyber threats, developing security improvement plans, and advising on security architecture. You will work closely with senior colleagues to translate complex technical issues into actionable recommendations, ensuring the organisation's systems and information are well-protected.

Consula Group LTD Manchester, United Kingdom £50,665 – £52,817 pa

On-site Permanent Clearance Required

Penetration Tester

This role involves conducting comprehensive penetration tests across web, API, network, cloud, and mobile environments, from scoping to client debrief. The candidate will produce detailed technical reports, present findings directly to clients, and contribute to tool development by researching emerging vulnerabilities. It's a client-facing position requiring strong technical depth and communication skills within a consultancy setting.

VIQU IT Clerkenwell, London, EC1R 0EA, United Kingdom £60,000 – £65,000 pa

iOS Mobile Software Engineer II

Develop and enhance iOS SDKs for secure document capture and identity verification, focusing on camera functionality, on-device image processing, and machine learning. Collaborate with cross-functional teams to deliver accessible, high-quality user experiences through robust, scalable code and contribute to test automation and CI/CD pipelines.

Entrust London, United Kingdom

Hybrid Permanent

iOS Mobile Software Engineer II

This role involves developing and enhancing iOS SDKs for document capture within identity verification solutions. The engineer will focus on camera functionality, on-device image processing, and machine learning to improve user experience and image quality. Work includes SDK development, API integration, test automation, and collaboration with product teams to deliver accessible, high-performance solutions embedded in customer applications.

Entrust Portugal

Hybrid Permanent

Environmental Test Engineer

This role involves performing environmental and electrical testing of spacecraft systems and components, including test preparation, execution, data recording, and reporting. The engineer will work with advanced test facilities such as Thermal Vacuum, Vibration, and Shock chambers, ensuring compliance with strict safety and quality standards. The position supports high-profile space missions for ESA and UK MOD, offering hands-on technical work in a collaborative, safety-critical environment.

airbus Stevenage, United Kingdom

Senior Red Team Operator

This role involves leading full-scope Red Team operations across cyber, physical, and social engineering domains to emulate real-world adversaries and test organisational defences. The individual will design and execute sophisticated attacks, develop custom tradecraft and tooling, operate Command and Control frameworks, and deliver compelling narratives of findings to both technical and executive audiences. Emphasis is placed on research, mentorship, and improving detection capabilities through collaboration with defensive teams.

Barclays United Kingdom

Remote Permanent Clearance Required

Solution Architect

Design and review secure technical solutions across cloud, application, infrastructure, and integration domains. Ensure security controls are embedded throughout the design and delivery lifecycle. Provide security architecture expertise across technology initiatives, working with technical teams and stakeholders to identify risks and advise on controls.

Hays Technology London, United Kingdom £560 pd

Hybrid Contract Clearance Required

GCP Devops Engineer

This role involves building, automating, and managing enterprise-grade cloud platforms on GCP. Responsibilities include designing CI/CD pipelines, managing Kubernetes workloads, configuring monitoring and observability, and ensuring platform reliability and operations.

Vallum Associates London, United Kingdom £500 – £525 pd

Cloud Infrastructure Engineer

This role involves designing, deploying, and managing Azure IaaS and PaaS services, building Infrastructure-as-Code, developing CI/CD pipelines, and implementing cloud governance and security. You'll work hands-on to modernize the cloud environment and improve automation and cloud-native practices.

Amtis Professional Shenstone, Staffordshire, WS14 0NF, United Kingdom £50,000 – £60,000 pa

Enterprise Applications Manager

The IS Applications Lead will oversee the delivery, performance, and management of a broad applications estate, with a focus on SAP. Responsibilities include managing application processes, architecture, security, third-party vendors, and SAP-specific tasks such as change management and compliance. The role involves close collaboration with internal teams and external service providers.

Land and Sea Resources Limited Barrow in Furness, Cumbria, United Kingdom £350 pd