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 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...

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 Cyber Software Engineer/ Technical Lead

Added 07/09/2026

We are seeking a Senior Cyber Software Engineer / Technical Lead to design, develop and guide the delivery of secure, resilient software solutions for complex cyber and national security challenges. You will provide technical leadership across the full software development lifecycle, from requirements analysis and architecture through implementation, testing, deployment and ongoing improvement. The role will involve working closely with software engineers, cyber specialists, systems engineers and stakeholders to translate operational needs into practical, high-quality technical outcomes. Key responsibilities will include defining software and system architectures; leading the development of secure, scalable applications and services; conducting technical reviews and promoting...

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 (£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 Software Engineer, Customer Data Protection

Added 03/09/2026

We are seeking a Senior Software Engineer, Customer Data Protection to help design and build secure, reliable systems that safeguard sensitive customer information. In this role, you will contribute to the development of privacy-focused platforms, services, and engineering practices across the software lifecycle. You will work closely with engineers, product managers, security specialists, privacy professionals, and other stakeholders to understand requirements, assess risks, and deliver solutions that protect data by design. Your responsibilities will include designing, implementing, testing, and maintaining scalable services that support data protection, access control, retention, deletion, consent, and compliance requirements. You will provide technical leadership on...

Senior Software Engineer – Cyber (Java, Spring, AWS)

Added 26/08/2026

We are seeking a Senior Software Engineer – Cyber (Java, Spring, AWS) to design, develop and maintain secure, resilient software that supports critical cyber and technology capabilities. You will work across the full software development lifecycle, collaborating with engineers, architects, product specialists and security professionals to deliver high-quality solutions in a fast-paced and technically challenging environment. This role offers the opportunity to contribute to systems that protect information, improve operational resilience and support evolving cyber security needs. Your responsibilities will include developing scalable Java applications using Spring and related frameworks; designing and integrating RESTful APIs and distributed services; deploying and...

Senior Software Engineer (DevSecOps)

Added 19/08/2026

We are seeking a skilled Senior Software Engineer with a focus on DevSecOps to join our dynamic team. In this role, you will be responsible for designing, implementing, and maintaining secure software development practices across our development lifecycle. You will collaborate with cross-functional teams to integrate security measures into CI/CD pipelines, ensuring that security is prioritized at every stage of the software development process. You will also conduct threat modeling and vulnerability assessments, providing guidance on secure coding standards and best practices to enhance the overall security posture of our applications. The ideal candidate will have a strong background in...

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 Software Engineer in Test (Security)

Added 22/07/2026

We are seeking a highly skilled Senior Software Engineer in Test with a strong focus on security to join our dynamic team. In this role, you will be responsible for designing and implementing robust testing frameworks to ensure the security and performance of our software applications. You will develop automated test scripts and execute comprehensive test plans, identifying vulnerabilities and ensuring compliance with industry standards. Collaboration with cross-functional teams will be crucial, as you will work closely with developers, product managers, and security experts to integrate security testing into the software development lifecycle. The ideal candidate will possess extensive experience...

Software Engineer - Cyber & Autonomous Systems Team

Added 18/09/2026

We are seeking a Software Engineer to join a specialist Cyber & Autonomous Systems Team developing secure, resilient and intelligent technologies for complex operational environments. You will contribute to the full software development lifecycle, from requirements analysis and system design through to implementation, integration, testing, deployment and ongoing improvement. Working as part of a multidisciplinary engineering team, you will help deliver robust software for autonomous platforms, cyber capabilities, sensing systems and mission-critical applications. Your responsibilities will include designing and developing high-quality software using modern programming languages and engineering practices; integrating software with hardware, networks, sensors and external systems; writing automated...

Software Engineer - Cyber & Autonomous Systems Team

Added 17/09/2026

We are seeking a Software Engineer to join a multidisciplinary Cyber & Autonomous Systems Team developing secure, intelligent, and resilient solutions for complex operational environments. You will contribute to the full software development lifecycle, from requirements analysis and system design through implementation, integration, testing, deployment, and ongoing support. The role offers the opportunity to work on advanced systems that combine software engineering, autonomy, data processing, communications, and cybersecurity. Your responsibilities will include designing and developing robust software in languages such as C++, Python, or Java; integrating software with sensors, platforms, networks, and other mission-critical systems; and creating automated tests to...

Principal Software Engineer (DevSecOps)

Added 14/09/2026

We are seeking a Principal Software Engineer (DevSecOps) to provide technical leadership across the design, development, deployment, and operation of secure, scalable software platforms. You will help shape engineering strategy, establish modern DevSecOps practices, and guide teams in delivering reliable products at pace. The role requires a hands-on leader who can work across architecture, software engineering, cloud infrastructure, automation, and cybersecurity while influencing technical decisions across the wider organisation. Your responsibilities will include defining and evolving CI/CD strategies, embedding security controls throughout the software development lifecycle, and developing automated pipelines for build, test, release, compliance, and infrastructure provisioning. You will...

Principal Software Engineer (DevSecOps)

Added 14/09/2026

We are seeking a Principal Software Engineer (DevSecOps) to provide technical leadership across software engineering, cloud infrastructure, security, and delivery automation. You will shape engineering standards and platforms that enable teams to build, test, release, and operate secure, reliable, and scalable services. Working across architecture and delivery teams, you will influence technical strategy, promote engineering excellence, and help embed security throughout the software development lifecycle. Your responsibilities will include defining DevSecOps practices, reference architectures, and reusable tooling; designing and improving CI/CD pipelines; and integrating automated security, compliance, quality, and performance checks into delivery workflows. You will guide the adoption of...