Senior Security Architect

Added 03/09/2026

We are seeking an experienced Senior Security Architect to define and strengthen enterprise security architecture across cloud, on-premises and hybrid environments. In this role, you will develop practical, scalable security strategies that support business objectives while protecting critical systems, applications, data and infrastructure. You will work closely with technology, engineering, risk, compliance and business stakeholders to embed security throughout the design and delivery lifecycle. Your responsibilities will include creating and maintaining security architecture principles, standards, reference models and roadmaps; assessing proposed solutions and providing security recommendations; and identifying risks, vulnerabilities and opportunities for improvement. You will lead architecture reviews, threat...

Senior Conformity Assessment Program Specialist - Information Security Management System

Added 26/08/2026

We are seeking a Senior Conformity Assessment Program Specialist to lead and support the delivery of information security management system (ISMS) conformity assessment activities. In this role, you will coordinate assessment programmes, oversee planning and scheduling, and ensure that audits and related activities are conducted consistently, efficiently and in accordance with applicable standards, accreditation requirements and internal procedures. You will work closely with clients, assessors, technical experts and internal stakeholders to clarify requirements, manage expectations and support the successful completion of assessment cycles. Your responsibilities will include reviewing applications and assessment information, determining resource and competence requirements, preparing assessment plans,...

Ground System Security Design Engineer (H/F) (M/F)

Added 07/10/2026

We are seeking a Ground System Security Design Engineer to contribute to the protection of complex ground-based systems supporting critical space and satellite operations. In this role, you will help define secure architectures, identify potential vulnerabilities and ensure that security requirements are integrated throughout the system lifecycle, from initial concept and design through deployment, operation and maintenance. You will work closely with systems engineers, software and hardware specialists, operations teams and external partners to deliver resilient, compliant and maintainable solutions. Your responsibilities will include translating operational and regulatory needs into clear security requirements; performing threat, risk and vulnerability assessments; designing...

Ground System Security Design Engineer

Added 07/09/2026

We are seeking a Ground System Security Design Engineer to support the development, integration and protection of complex ground-based systems. In this role, you will contribute to the security design of infrastructure, networks, applications and operational technologies that support critical mission services. You will work across the system lifecycle, from concept and requirements definition through architecture, implementation, verification and ongoing improvement, ensuring that security is embedded by design. Your responsibilities will include producing and maintaining security architectures, design documents, technical requirements, threat models and risk assessments. You will identify vulnerabilities and attack paths, define appropriate security controls, and support the...

IT & Information Security Management System Coordinator

Added 26/08/2026

We are seeking an IT & Information Security Management System Coordinator to support the effective operation, continual improvement and governance of information security and IT management processes. This role will coordinate activities across technology, risk, compliance and business teams, helping to ensure that information assets, systems and services are managed securely, efficiently and in line with relevant policies, standards and regulatory requirements. Key responsibilities will include maintaining and coordinating the Information Security Management System (ISMS), supporting risk assessments, tracking corrective and preventive actions, and preparing documentation, reports and management information. You will help organise internal and external audits, monitor progress...

Senior Software Security Engineer (£98k-£115k + Equity) at Harmonic Security Inc.

Added 03/09/2026

We are looking for a Senior Software Security Engineer to help build secure, resilient products in a fast-moving technology environment. This is a hands-on role for an experienced engineer who can combine strong software development skills with a deep understanding of application and cloud security. You will work closely with engineering, product and infrastructure teams to embed security throughout the software development lifecycle, from design and implementation through to deployment and ongoing improvement. The position offers a salary of £98,000–£115,000 plus equity. Your responsibilities will include designing and implementing secure, scalable services; reviewing code and architecture for vulnerabilities; developing security...

Senior Embedded Software Engineer, Pixel Phone Security

Added 08/10/2026

We are seeking a Senior Embedded Software Engineer to help strengthen security across next-generation mobile devices. In this role, you will design, develop and maintain low-level software that protects device integrity, user data and trusted execution environments from evolving threats. You will work across boot security, secure firmware, hardware-backed key management, cryptographic services, trusted applications and platform resilience. Your responsibilities will include defining security architecture, implementing and reviewing embedded C/C++ code, analysing attack surfaces, investigating vulnerabilities and contributing to secure development, testing and release processes. You will collaborate closely with hardware engineers, operating-system developers, security researchers and product teams to...

Senior Software Development Engineer,NextGen Security, ZeroFriction

Added 02/10/2026

We are seeking a Senior Software Development Engineer to design, build, and operate secure, reliable software solutions that make digital experiences safer and more seamless. In this role, you will work across the full development lifecycle, from technical discovery and architecture through implementation, testing, deployment, and ongoing optimisation. You will help develop security-focused services and platforms that protect users, applications, and data while reducing unnecessary friction in authentication, access, and everyday workflows. You will lead the delivery of complex engineering initiatives, contribute to system and API design, and promote high standards for scalability, availability, observability, and maintainability. Responsibilities will include...

Senior C++ Software Engineer (Cyber Security)

Added 24/09/2026

We are seeking a Senior C++ Software Engineer to develop high-performance cybersecurity solutions that protect critical systems, applications, and data. In this role, you will design, implement, and maintain robust software components used to detect, prevent, and respond to sophisticated security threats. You will work across the full development lifecycle, from technical analysis and architecture through to coding, testing, deployment, and ongoing improvement. The position offers the opportunity to contribute to technically challenging products in an environment where reliability, performance, and secure engineering are essential. Your responsibilities will include developing modern C++ applications and services, reviewing code, investigating complex defects,...

Senior Software Engineer, Proactive Security

Added 21/09/2026

We are seeking a Senior Software Engineer, Proactive Security to help strengthen the security of complex, distributed systems before vulnerabilities become incidents. In this role, you will design and build scalable security solutions, develop tools that identify and reduce risk early in the software development lifecycle, and partner closely with engineering, infrastructure, and product teams. You will contribute to security architecture, threat modelling, vulnerability management, secure-by-design practices, and the automation of preventative and detective controls. Your responsibilities will include defining and implementing security engineering strategies, improving code and dependency scanning, developing security-focused services and integrations, and analysing emerging threats to...

Senior Engineer, Software Security

Added 17/09/2026

We are seeking a Senior Engineer, Software Security to help strengthen the security, resilience and trustworthiness of modern software systems. In this role, you will work closely with software engineering, infrastructure, product and compliance teams to embed security throughout the development lifecycle. You will provide technical leadership on secure design, threat modelling, vulnerability management and security automation, while helping teams deliver reliable products without compromising usability or performance. Your responsibilities will include reviewing architecture and source code, identifying security risks, and recommending practical remediation strategies. You will develop and maintain security standards, libraries, tooling and development patterns that support secure-by-default...

Senior Software Engineer, Security Rules

Added 08/09/2026

We are seeking a Senior Software Engineer, Security Rules to design, build, and evolve the systems that detect and prevent security threats at scale. In this role, you will develop high-quality software and rule-based detection capabilities that help identify suspicious activity, reduce risk, and protect users and services. You will work closely with security analysts, threat intelligence specialists, product managers, and engineering teams to translate emerging threats and operational requirements into reliable, maintainable solutions. Your responsibilities will include designing, implementing, testing, and operating security rules, detection logic, and supporting services across complex production environments. You will investigate detection gaps, analyse...

Senior Software and Security Engineer

Added 03/09/2026

We are seeking a Senior Software and Security Engineer to design, develop, and protect reliable software systems across the organisation. In this senior role, you will contribute to the full software development lifecycle, from technical planning and architecture through implementation, testing, deployment, and ongoing improvement. You will work closely with engineering, infrastructure, product, and operational teams to deliver secure, scalable, and maintainable solutions that meet business and user needs. Your responsibilities will include developing high-quality code, reviewing technical designs and pull requests, improving application performance, and supporting modern development practices such as continuous integration and automated delivery. You will identify...

Senior Software Security Engineer

Added 18/08/2026

We are seeking a highly skilled Senior Software Security Engineer to join our dynamic team. In this role, you will be responsible for designing, implementing, and maintaining security protocols for our software applications. You will collaborate with cross-functional teams to identify security vulnerabilities and implement effective remediation strategies. Your expertise will guide the development of secure coding practices and help establish a culture of security awareness throughout the organization. The ideal candidate will have a deep understanding of application security principles, threat modeling, and secure software development lifecycles. You will conduct security assessments, code reviews, and penetration testing to ensure...

Senior Cyber Software Engineer/ Technical Lead

Added 09/09/2026

We are seeking a Senior Cyber Software Engineer/Technical Lead to design, develop and deliver secure software capabilities for complex cyber and national security environments. You will provide technical leadership across the full software development lifecycle, from requirements analysis and architecture through implementation, integration, testing, deployment and ongoing support. Working closely with multidisciplinary engineering, security and operational teams, you will translate mission needs into robust, scalable and maintainable solutions. Your responsibilities will include leading software design activities, establishing engineering standards and reviewing technical approaches; developing high-quality applications, services, tools and automation; and guiding the resolution of complex technical issues. You will...