Latest Application Security Engineer Jobs

Trainee DevOps Engineer | No experience needed (Ref: 7501)

DEVOPS ENGINEER TRAINEESHIPBecome a DevOps Engineer and Build Real-World ExperienceAre you interested in cloud computing, software development, automation, and building reliable technology platforms? Do you want to gain practical experience while developing technical skills that are in high demand across...

Qualify Nation Recruitment Bristol, United Kingdom £28,000 – £38,000 pa

Trainee DevOps Engineer | No experience needed (Ref: 7501)

DEVOPS ENGINEER TRAINEESHIPBecome a DevOps Engineer and Build Real-World ExperienceAre you interested in cloud computing, software development, automation, and building reliable technology platforms? Do you want to gain practical experience while developing technical skills that are in high demand across...

Qualify Nation Recruitment Hull, United Kingdom £28,000 – £38,000 pa

Lead/ Principal DevOps Engineer- eDV Cleared

This role involves leading and shaping DevOps solutions for high-impact, mission-critical projects in the National Security domain. You will work hands-on with containerization, infrastructure as code, and CI/CD, while also providing technical leadership and stakeholder management.

Searchability NS&D Manchester, United Kingdom £85,000 – £100,000 pa

On-site Permanent Clearance Required

Lead/ Principal DevOps Engineer- eDV Cleared

This role involves leading and shaping DevOps solutions for high-impact, mission-critical projects in the National Security domain. You will work on innovative projects, collaborate with industry-leading clients, and leverage your expertise in containerization, infrastructure as code, and leadership.

Searchability NS&D Cheltenham, United Kingdom £85,000 – £100,000 pa

On-site Permanent Clearance Required

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

Senior ML Engineer, Doc Fraud

This role involves building and optimizing production machine learning systems for document classification and extraction, with a focus on leveraging LLMs and traditional ML techniques at scale. The engineer will design training and inference pipelines, improve model accuracy through advanced labeling workflows, and ensure high performance and reliability in real-time systems. Collaboration with applied science, product, and operations teams is key to delivering secure, seamless customer onboarding experiences across global document types.

Entrust

Hybrid Permanent

Principal Cloud DevOps Engineer

This role involves designing and maintaining scalable cloud infrastructure for a machine learning-powered identity verification platform. The engineer will automate deployment pipelines, enhance system reliability, and collaborate with security teams to address threats and patches. Emphasis is placed on mentoring teams and advancing DevOps practices using AWS, Kubernetes, and modern IaC tools.

Entrust London, United Kingdom

Hybrid Permanent Flexible

Senior C++ Software Engineer

Design and develop high-performance, low-latency C++ systems for AI-driven cybersecurity solutions, focusing on innovation, memory safety, and scalability. Work within a cross-functional R&D team to build secure, production-grade native tooling that defends against unknown cyber threats. Specialise in modern C++ (C++17/20+), systems programming, and performance optimisation in Linux and cloud environments.

Darktrace Cambridge, CB2 3BJ, United Kingdom

Hybrid Permanent

Software Engineer (Python)

This role involves prototyping and developing innovative features for Darktrace’s AI-driven cybersecurity platform. You'll work on both rapid experimentation and structured development, collaborating with cross-functional teams to enhance systems that defend against unknown threats. The position emphasizes creativity, problem-solving, and technical ownership within a fast-paced R&D environment.

Darktrace Cambridge, CB2 3BJ, United Kingdom

IT Support Engineer (AV Industry)

IT Support Engineer (AV Industry)Hemel Hempstead - Hybrid (50% remote)£35,000 - £40,000 + Private Medical + Dental Cover + Progression + Training + Company BenefitsAre you an IT Support Engineer that wants to make an impact within a global, customer...

Ernest Gordon Recruitment Hemel Hempstead, HP1 1EW, United Kingdom £35,000 – £40,000 pa

QA Test Engineer

This role involves ensuring software quality across web, mobile, and API-based applications through a mix of manual, exploratory, and automated testing. You'll collaborate closely with developers and DevOps throughout the Agile lifecycle to build quality in from the start, not just test at the end. The position offers opportunities to influence testing practices, work on technically diverse projects, and contribute to reliability, security, and performance in a supportive, modern development environment.

Leo Recruitment Limited Bh170Aa, United Kingdom £35,000 – £40,000 pa

Senior Backend Engineer

Design and operate scalable cloud platform services to support critical digital products, with a focus on reliability, observability, and CI/CD. Work within agile multidisciplinary teams to improve service resilience and implement Site Reliability Engineering practices. Develop automation tooling and infrastructure-as-code while mentoring colleagues and supporting live operations.

Inspire People Cf101Xs, United Kingdom £63,824 – £80,158 pa

Senior Backend Engineer

Design and operate scalable cloud platform services using Python and modern engineering practices within a multidisciplinary agile team. Focus on reliability, security, and observability through SRE principles, infrastructure-as-code, and CI/CD tooling. Support live services and mentor engineers across a distributed environment.

Inspire People Sw1A2Et, United Kingdom £63,824 – £80,158 pa

SOC Engineer

This role involves engineering and optimising security tools, telemetry, detections, and automation within a Cyber Security Operations Centre. The SOC Engineer will administer Microsoft Sentinel, develop SOAR workflows, tune detection rules, conduct threat hunting, and support incident response. The position requires strong scripting skills and experience with SIEM, SOAR, and security monitoring across hybrid environments.

Proactive Appointments Milton Keynes, United Kingdom £55,000 pa