Principal Security Operations Engineer

Added 05/10/2026

We are seeking a Principal Security Operations Engineer to provide technical leadership across the design, operation and continuous improvement of security monitoring and incident response capabilities. In this role, you will help protect critical systems, applications and data by developing resilient detection strategies, improving operational processes and guiding the response to complex cyber threats. You will work closely with security architecture, infrastructure, cloud, engineering and risk teams to ensure security operations are aligned with business priorities and evolving threat landscapes. Your responsibilities will include leading the investigation and response to high-severity security incidents, developing and tuning detections across SIEM, endpoint,...

Security Researcher

Added 08/10/2026

We are seeking a Security Researcher to investigate emerging threats, identify vulnerabilities, and develop practical security improvements across a range of technologies and environments. The successful candidate will combine strong analytical skills with hands-on technical expertise to assess attack methods, validate security controls, and communicate findings clearly to both technical and non-technical audiences. This role offers the opportunity to contribute to meaningful security initiatives in a collaborative, research-focused environment. Responsibilities will include researching current and emerging cyber threats, vulnerabilities, malware, exploitation techniques, and defensive technologies. You will design and execute proof-of-concept demonstrations, conduct vulnerability assessments, analyse security incidents, and support...

Security Solution Area Specialists

Added 11/09/2026

Security Solution Area Specialists are responsible for helping organisations strengthen their security capabilities through effective, practical and scalable technology solutions. Working closely with customers, internal specialists and delivery teams, you will understand business and technical challenges, translate them into clear requirements, and recommend solutions that support secure operations. You will contribute across the full solution lifecycle, from early discovery and design through to implementation, optimisation and ongoing improvement. Your responsibilities will include analysing security environments, identifying risks and opportunities, developing solution concepts, and producing high-quality technical proposals and presentations. You will support workshops, demonstrations and stakeholder discussions, ensuring that complex...

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 Verification & Validation Team

Added 14/10/2026

We are seeking a Senior Security Engineer to join a specialist Security Verification and Validation team responsible for assessing the resilience, security, and compliance of complex cloud-based services. In this role, you will help identify security weaknesses before they can affect customers, strengthen defensive controls, and promote secure engineering practices across a large-scale technology environment. You will work closely with software engineers, architects, incident responders, and risk specialists to evaluate systems throughout their development and operational lifecycles. Your responsibilities will include designing and executing security assessments, threat modelling exercises, penetration tests, architecture reviews, and control validation activities. You will investigate...

Senior Security Consultant (Platform Security Engineer) - Permanent

Added 07/10/2026

We are seeking a Senior Security Consultant (Platform Security Engineer) to strengthen the security, resilience and compliance of critical technology platforms. This permanent role is suited to an experienced security professional who can combine hands-on engineering expertise with strategic consulting skills. You will work with technology, product and operational teams to identify security risks, design effective controls and embed secure practices throughout the platform lifecycle. Your responsibilities will include assessing platform architectures, cloud environments, infrastructure and deployment pipelines; defining security requirements; and advising on identity and access management, network security, encryption, secrets management, vulnerability management and secure configuration. You will...

Senior Security Engineer - Enterprise Security

Added 29/09/2026

We are seeking a Senior Security Engineer to strengthen enterprise security capabilities across a complex, technology-driven environment. This role will be responsible for designing, implementing and continuously improving security controls that protect corporate systems, cloud platforms, networks, applications and sensitive data. You will work closely with infrastructure, software engineering, architecture, compliance and risk teams to ensure security is embedded throughout the technology lifecycle. Key responsibilities include developing and maintaining security architecture, standards and engineering patterns; assessing technical risks and recommending practical mitigations; supporting identity and access management, endpoint protection, network security, vulnerability management and cloud security initiatives; and contributing to...

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 IT Engineer (Infrastructure and Security)

Added 15/10/2026

We are seeking a Senior IT Engineer (Infrastructure and Security) to take a leading role in maintaining, securing and improving a complex technology environment. You will be responsible for the availability, performance and resilience of core infrastructure, while helping to strengthen security controls and support the organisation’s wider technology strategy. This is a hands-on role requiring strong technical expertise, sound judgement and the ability to work effectively with colleagues, suppliers and stakeholders at all levels. Your responsibilities will include managing and supporting server, cloud, network, storage, backup and virtualisation platforms; monitoring systems and resolving incidents, problems and service requests; and...