Senior Software Engineer, Security Assurance | UK | Remote
We are seeking a Senior Software Engineer, Security Assurance to help strengthen the security, resilience and quality of software systems delivered across a remote engineering environment in the UK. You will work closely with software engineers, security specialists, architects and product teams to embed secure development practices throughout the software development lifecycle. This role combines hands-on engineering with technical leadership, enabling teams to identify and address security risks early while maintaining a practical, delivery-focused approach.
Your responsibilities will include designing and implementing security assurance processes, reviewing application and infrastructure designs, and supporting threat modelling, secure code reviews and vulnerability management. You will develop automation and tooling to improve security testing within CI/CD pipelines, assess the effectiveness of existing controls, and help define standards for authentication, authorisation, data protection, dependency management and secure configuration. You will also investigate security findings, support remediation planning, contribute to incident response where required, and communicate risks and recommendations clearly to both technical and non-technical stakeholders. As a senior member of the team, you will mentor colleagues, promote continuous improvement and help shape engineering practices that are secure by design.
You will bring substantial experience in software engineering, application security or security assurance, with a strong understanding of modern development methodologies and cloud-based environments. We are looking for proficiency in one or more programming languages, experience with source control and automated delivery pipelines, and practical knowledge of security testing tools and techniques. Familiarity with common security frameworks, threat modelling approaches, vulnerability management and relevant data protection principles is desirable. You should be comfortable balancing security requirements with usability, performance and delivery needs, while working independently and collaboratively in a distributed team. Excellent communication skills, sound judgement and a proactive approach to problem-solving are essential.
Senior Software Engineer, Security Assurance | UK | Remote
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