Software Engineer, Security Rules

Added 04/09/2026

We are seeking a Software Engineer, Security Rules to help build and maintain systems that protect users, applications, and data from evolving security threats. In this role, you will design, develop, and operate security rules, detection logic, and automated controls across a range of products and services. You will work closely with software engineers, security specialists, and infrastructure teams to translate emerging threats and business requirements into reliable, scalable, and measurable protections. Your responsibilities will include creating and refining rules for identifying suspicious activity, malicious content, abuse patterns, and policy violations. You will investigate detection gaps, analyse false positives and...

Threat Intelligence Software Engineer, Cloudforce One

Added 11/09/2026

We are seeking a Threat Intelligence Software Engineer to build and enhance systems that help security teams identify, understand, and respond to emerging cyber threats. In this role, you will design, develop, and maintain scalable software and data pipelines that collect, enrich, analyse, and distribute threat intelligence from a wide range of sources. You will work closely with threat researchers, security analysts, data engineers, and product teams to turn complex intelligence requirements into reliable, usable technology. Your responsibilities will include developing production-quality services and automation using languages such as Python, Go, or Rust; integrating external and internal data sources; improving...

Vulnerability Management Engineer

Added 04/09/2026

We are seeking a Vulnerability Management Engineer to help identify, assess, prioritise, and reduce security weaknesses across a complex technology environment. In this role, you will support the full vulnerability management lifecycle, from discovery and validation through remediation, reporting, and risk acceptance. You will work closely with infrastructure, cloud, application, endpoint, and operations teams to ensure vulnerabilities are addressed in line with defined service levels and business priorities. Your responsibilities will include configuring and maintaining vulnerability scanning and assessment tools; developing authenticated and unauthenticated scan policies; analysing results to remove false positives and identify meaningful risk; and producing clear reports...

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 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 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 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...

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 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 Cybersecurity Engineer

Added 03/09/2026

We are seeking a Senior Software Cybersecurity Engineer to lead the design, development, and implementation of secure software solutions across complex products and platforms. In this role, you will work closely with software engineers, architects, product managers, and security specialists to embed security throughout the software development lifecycle. You will help define security requirements, assess technical risks, and ensure that applications, services, and supporting infrastructure are resilient against evolving cyber threats. Your responsibilities will include conducting threat modelling, secure design reviews, code and architecture assessments, and vulnerability analysis. You will develop and maintain security controls, contribute to secure coding standards,...

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...