251 to 275 of 347 Senior Security Engineer Jobs in the UK

LexisNexis Risk Solutions seeks a software engineer to design, build, deploy and support production-ready AWS-based services with secure, observable operations. You will work in a cross-functional Agile team, mentor colleagues, and help shape engineering standards while delivering reliable releases. Candidates should have strong Python/JavaScript ...

National Physical Laboratory in Birmingham is seeking a Senior Software Engineer to lead the design and architecture of systems that support security testing. This hands-on role requires expertise that directly impacts national security by ensuring the delivery of secure software. Ideal candidates will possess strong ...

seeking a Senior Systems Engineer to drive technology programs, including Cloud implementation and support, desktop engineering escalation and networking for a defined client portfolio. Hybrid work with a London-area preference. You’ll lead migrations, manage complex issues, and contribute to the internal knowledge base while delivering best … practice security configurations such as MFA and conditional access. #J-18808-Ljbffr ...

Oxford Dynamics Limited seeks a Senior DevOps Engineer to own end-to-end cloud systems, focusing on AWS, Kubernetes and modern CI/CD. You will drive secure, scalable infrastructure and champion cost-efficient platforms while aligning with industry standards. You will design, implement and audit multi-account ...

Securitas Technology UK is seeking a proactive Commissioning Engineer to lead the commissioning phase of security installations across the North East, North West England and Scotland. The role requires hands‐on leadership, cross‐functional collaboration, and a focus on delivering high‐quality, compliant handovers to the Operations Team. ...

Forwardrole is seeking a Senior Platform Engineer to design and evolve secure cloud platforms in Cheltenham, with hybrid working arrangements. You will drive automation, deployment improvements, and reliable platform provisioning in collaboration with Software and Cloud Engineers on live National Security programmes. The role focuses on platform ...

Klarna is seeking an offensive mobile security specialist in London to perform pentests and red-team exercises against its iOS and Android apps. You will reverse-engineer binaries, evaluate app hardening, and collaborate with engineering to turn findings into fixes. You should have hands-on mobile security ...

Frontier Resourcing is seeking a Senior Test Engineer (eDV) to join our software delivery function in a National Security-facing role. The position is office-based at one of Gloucestershire, Manchester or London locations. You will work within an experienced team, ensuring software quality across multiple business … areas, with emphasis on eDV UK Security Clearance. The role requires collaboration with agile delivery teams and proficiency in test automation and environments. #J-18808-Ljbffr ...

Frontier Resourcing is seeking a Senior Test Engineer (eDV) to join our software delivery function in a National Security-facing role. The position is office-based at one of Gloucestershire, Manchester or London locations. You will work within an experienced team, ensuring software quality across multiple business … areas, with emphasis on eDV UK Security Clearance. The role requires collaboration with agile delivery teams and proficiency in test automation and environments. #J-18808-Ljbffr ...

Frontier Resourcing is seeking a Senior Test Engineer (eDV) to join our software delivery function in a National Security-facing role. The position is office-based at one of Gloucestershire, Manchester or London locations. You will work within an experienced team, ensuring software quality across multiple business … areas, with emphasis on eDV UK Security Clearance. The role requires collaboration with agile delivery teams and proficiency in test automation and environments. #J-18808-Ljbffr ...

Engine by Starling is seeking a Senior Infrastructure Engineer to design, build, and operate scalable cloud foundations across regions and providers. You will own infrastructure from conception through production, emphasising reliability, security, and cost-effectiveness. The role requires strong GCP/Terraform skills, experience with CI/… pipelines, and a mindset for automation and security by design in a fast-paced fintech environment. #J-18808-Ljbffr ...

Proofpoint is hiring a Senior Software Engineer for the XFI team within the Cloud Integration Group in Belfast. You will help scale the Cross Functional Integrations services that connect to Microsoft and Google email platforms, delivering secure, high-performance integrations for both inbound and outbound traffic. You will … design reliable distributed systems, improve scalability and reliability, and ship code daily using CI/CD pipelines while focusing on security and data protection. #J-18808-Ljbffr ...

help organisations adopt secure-by-design cloud infrastructures and offer deep expertise in threat modelling, DevSecOps, and platform engineering. We are looking for Senior Cloud Native Security Consultants to lead client engagements, contribute to internal labs, and represent ControlPlane in Open Source communities. #J-18808-Ljbffr ...

Viasat is seeking a Senior Network Engineer to ensure reliable, secure, and scalable enterprise network operations across on‐premises and cloud environments. You will contribute to network architecture, deployment, and operational readiness, partnering with infrastructure, security, and application teams. The role requires deep networking expertise, cloud networking ...

Matchtech is recruiting for a Senior Infrastructure Engineer to join the Synthetic Training and Engineering Products team in Warton, Lancashire. The role is a 12-month, full-time, on-site contract focusing on Infrastructure as Code, automation and secure delivery of synthetic training device infrastructure. You'll design … build and maintain IaC patterns, use Ansible in secure environments, and work with security engineers to ensure compliance with ITAR and UK Eyes Only constraints while #J-18808-Ljbffr ...

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software … Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this roleAs a Senior Software Engineer on GitLab's Authorization team, you will own significant parts of the system that decides what every user, token, and automated agent ...

Pacific Life Re is seeking a Senior Cloud Engineer to maintain, optimise, and evolve AWS workloads across multiple regions. The role focuses on security, reliability, governance, and lifecycle management, operating within enterprise standards and cloud shared services. You will engage in platform provisioning, improve tooling, and support ...

National Physical Laboratory (NPL) in the United Kingdom seeks a Senior Platform Engineer to lead Linux, tooling and security across enterprise platforms. The role focuses on automation, DevOps practices, PKI, and identity/security services, with travel to sites as required. Fixed-term 12-month contract ...

understand complex data, so that governments, nation states, armed forces and commercial businesses can unlock digital advantage in the most demanding environments. Job Title: Senior Software Engineer Requisition ID: 123022 Location: Gloucester We offer a range of hybrid and flexible working arrangements please speak to your recruiter about … options for this particular role. Grade: GG09-GG11 Referral Bonus: £5,000 About the role The National Security business in Gloucester is growing and there are an increasing number of opportunities to work with a range of National Security clients to provide solutions that have a real impact. ...

QinetiQ Limited in London is seeking a Senior Cloud Engineer to design, build and support secure AWS-based environments for high‐security customer programmes. You will join a growing cloud engineering team, collaborating with technical leads, architects and stakeholders to deliver resilient infrastructure and automated deployments. With ...

Klarna seeks an experienced offensive mobile security specialist to protect its iOS and Android apps. You will conduct pentests and red-team exercises, reverse-engineer binaries, and apply MASVS/MASTG guidance to drive concrete engineering fixes. You will collaborate with software engineers to harden app security, test RASP protections, and document actionable remediation steps. This role requires hands-on testing across mobile platforms and a track record of security research or bug bounty work. #J-18808-Ljbffr ...

Associates is seeking an experienced SC/DV-cleared Senior Infrastructure Engineer for a London-based hybrid role. You will design, implement and support secure Microsoft infrastructure across complex enterprise environments, focusing on identity, security, automation and operations. Active clearance is required, with 2–3 days onsite ...

Hamilton Barnes Associates Limited is seeking a Senior Network Engineer to take technical ownership of design, implementation, and mentoring within a small engineering team. This home-based role includes occasional visits to our East London data centre and covers routing, switching, network security, wireless, cloud networking … Linux technologies. You will design, deliver, and support a hybrid network spanning on‐premises, data centre, and cloud environments, act as senior SME, mentor junior #J-18808-Ljbffr ...

JFrog in London is seeking a Senior Solutions Engineer to guide strategic customers through DevOps and DevSecOps journeys using the JFrog Platform. You will collaborate with Sales, Product & Engineering to translate technical value and business impact, and help shape customer success from initial engagement to adoption across cloud ...

leading technology provider in Aberdeen City is seeking a highly skilled Network Engineer to deliver critical national infrastructure. The role involves leading projects from design through implementation, troubleshooting complex network issues, and mentoring junior team members. Ideal candidates will have CCNP certification and extensive knowledge of network security ...