Security Engineer (Contractor)

Added 18/09/2026

We are seeking a Security Engineer (Contractor) to help protect enterprise systems, applications, networks, and data across a dynamic technology environment. The successful candidate will work closely with infrastructure, software development, operations, and risk teams to identify security weaknesses, implement effective controls, and support the continuous improvement of security practices. This is a hands-on role suited to an experienced professional who can operate independently, manage competing priorities, and communicate clearly with both technical and non-technical stakeholders. Key responsibilities include monitoring and investigating security events, supporting incident response activities, and conducting vulnerability assessments across infrastructure, cloud services, endpoints, and applications. You...

Principal Security Engineer

Added 10/08/2026

We are seeking a highly skilled Principal Security Engineer to join our dynamic team. In this role, you will be responsible for designing, implementing, and managing advanced security solutions to protect our systems and data. You will lead security initiatives, conduct risk assessments, and develop security policies and procedures. Collaborating with cross-functional teams, you will identify vulnerabilities and recommend enhancements to the security architecture. Your expertise will play a critical role in ensuring compliance with industry regulations and standards. The ideal candidate will have a strong background in cybersecurity, with at least 7 years of experience in security engineering or...

Senior Security Operations Engineer ( SOC Engineer L3)

Added 14/08/2026

We are seeking a seasoned Senior Security Operations Engineer to join our dynamic team, focusing on enhancing the security posture of our organization. In this pivotal role, you will be responsible for monitoring security incidents, conducting thorough investigations, and responding to threats in a timely manner. Your expertise will guide the development and implementation of robust security protocols and procedures. You'll collaborate closely with cross-functional teams to identify vulnerabilities and recommend remediation strategies, ensuring the integrity and confidentiality of sensitive data. As a key member of the Security Operations Center (SOC), you will lead incident response efforts, analyze security alerts,...

Senior Site Reliability Engineer / SecOps Engineer

Added 01/09/2026

We are seeking a Senior Site Reliability Engineer / SecOps Engineer to strengthen the reliability, security, and operational resilience of critical digital services. This role combines site reliability engineering, cloud infrastructure, automation, and security operations, with responsibility for ensuring systems remain available, scalable, observable, and protected. You will work closely with engineering, product, and infrastructure teams to identify operational risks, improve platform performance, and embed secure practices throughout the software development lifecycle. Key responsibilities include designing and maintaining resilient cloud infrastructure; developing infrastructure as code and automated deployment pipelines; monitoring system health, performance, and availability; and leading incident response, root-cause...

Senior Security Engineer, AWS Security

Added 07/09/2026

We are seeking a Senior Security Engineer to help design, implement, and continuously improve security capabilities across cloud infrastructure and services. In this role, you will work with engineering, operations, compliance, and product teams to protect highly available systems, strengthen security architecture, and manage risk across the organisation. You will provide technical leadership on complex security initiatives and help establish scalable, automated controls that support secure delivery at pace. Key responsibilities include designing and reviewing cloud security architectures; developing identity and access management strategies; implementing controls for network, data, application, and infrastructure security; and improving monitoring, detection, and response capabilities....

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 Offensive Security Engineer — Founding Security Hire

Added 01/09/2026

We are seeking a Senior Offensive Security Engineer to become the founding security hire and establish the foundations of a high-impact security function. This is a hands-on role for an experienced security professional who enjoys working across product, infrastructure, cloud environments, and organisational processes. You will define and execute a practical offensive security programme, identify meaningful risks, and partner closely with engineering and leadership teams to improve the security of systems, applications, and customer-facing services. Your responsibilities will include planning and conducting penetration tests, red-team exercises, vulnerability assessments, and threat-led reviews across web applications, APIs, cloud platforms, networks, and internal...

Senior Staff Security Engineer, AI Security

Added 25/08/2026

We are seeking a Senior Staff Security Engineer, AI Security, to help define and advance security strategy for artificial intelligence and machine learning systems. This role will lead the design of secure-by-default architectures, protections, and engineering practices across the AI lifecycle, from data ingestion and model development through deployment, monitoring, and retirement. You will work closely with research, product, infrastructure, privacy, legal, and incident response teams to identify emerging threats and translate them into practical controls that enable responsible innovation. You will conduct threat modelling and security reviews for AI platforms, model-serving infrastructure, agents, APIs, and supporting services; develop mitigations...

Senior Staff Security Engineer, AI Security

Added 25/08/2026

We are seeking a Senior Staff Security Engineer, AI Security to lead the design and implementation of security strategies for artificial intelligence and machine learning systems. This role will help define how AI capabilities are developed, deployed, monitored, and governed securely across a complex technology environment. You will work closely with engineering, research, infrastructure, privacy, legal, and product teams to identify emerging threats, establish practical controls, and ensure security is embedded throughout the AI lifecycle. Responsibilities include developing threat models for AI systems, applications, data pipelines, model supply chains, and supporting infrastructure; assessing risks such as prompt injection, data poisoning,...

Senior Content Security Engineer, GME Security

Added 19/08/2026

We are seeking a highly skilled Senior Content Security Engineer to join our dynamic team. In this role, you will be responsible for developing and implementing comprehensive content security strategies that safeguard our digital assets. You will work closely with cross-functional teams to identify vulnerabilities, assess risks, and create innovative solutions to protect sensitive information. Your expertise will be crucial in establishing best practices for content security, ensuring compliance with industry standards, and driving the adoption of secure coding practices across all development projects. The ideal candidate will have extensive experience with content management systems, web application security, and data...

Senior Content Security Engineer, GME Security

Added 18/08/2026

We are seeking a highly skilled Senior Content Security Engineer to join our dynamic security team. In this role, you will be responsible for developing, implementing, and maintaining robust content security strategies to safeguard our digital assets. You will work collaboratively with cross-functional teams to assess security risks, conduct vulnerability assessments, and design solutions that ensure the integrity and confidentiality of our content. Your expertise will be pivotal in enhancing our security policies and practices, as well as in providing guidance on secure coding and application development standards. The ideal candidate will possess a strong understanding of content security frameworks...

Senior Security Engineer – SoC & IC Security Architecture (m/f/d)

Added 03/08/2026

We are seeking a talented and experienced Senior Security Engineer with expertise in SoC (System on Chip) and IC (Integrated Circuit) Security Architecture to join our innovative team. In this role, you will be responsible for designing and implementing robust security architectures for cutting-edge semiconductor products. Your primary focus will be to identify potential vulnerabilities, develop security solutions, and ensure compliance with industry standards. You will collaborate closely with cross-functional teams, including hardware and software engineers, to integrate security measures throughout the product lifecycle. The ideal candidate will have a strong background in cybersecurity, particularly in the context of hardware...

Senior Corporate Security Engineer

Added 21/09/2026

We are seeking a Senior Corporate Security Engineer to design, implement, and maintain secure technology solutions across a complex enterprise environment. This role will help protect corporate systems, networks, applications, data, and users from evolving cyber threats while supporting business objectives and regulatory requirements. You will work closely with infrastructure, cloud, application development, risk, compliance, and operations teams to embed security into projects, services, and day-to-day technology operations. Responsibilities will include developing and maintaining security architectures, standards, controls, and engineering patterns; conducting threat modelling, vulnerability assessments, and security reviews; and recommending practical improvements to reduce risk. You will configure and...

Senior Product Security Engineer

Added 21/09/2026

We are seeking a Senior Product Security Engineer to help embed security throughout the product development lifecycle. In this role, you will partner with software engineers, product managers, architects, and infrastructure teams to identify risks, define practical security controls, and deliver secure, resilient products. You will contribute to security strategy while remaining hands-on in assessing applications, services, APIs, cloud environments, and supporting technologies. Your responsibilities will include leading threat modelling and secure design reviews, conducting vulnerability assessments, and advising engineering teams on remediation. You will develop and maintain security guidance, patterns, and standards; improve application security testing across the development...

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...