Sanderson are working with a growing, technology-led SaaS organisation that is investing heavily in secure, scalable platforms that support thousands of users globally. As part of their continued product evolution, they are looking for a Mid-Level .NET Engineer with strong experience in Identity andamp; Access Management (IAM) and modern authentication standards.You''ll join an Agile development team working on authentication and user identity services that underpin core platform functionality. Security is a key priority for this organisation, and they are looking for someone who is genuinely passionate about building secure, robust, and scalable systems.Key ResponsibilitiesDesign, develop, and maintain authentication and authorisation services using .NETWrite clean, scalable C# code following secure software engineering principlesImplement and support modern authentication protocols across the platformCollaborate with engineers and architects to design secure system architectureContribute to improving system security, resilience, and performanceTest, deploy, refactor, and optimise applications across the SDLCAct as a subject matter contributor within IAM and authentication servicesSkills andamp; ExperienceProven experience as a .NET/C# EngineerStrong hands-on experience with .NET and ASP.NETSolid understanding of OAuth 2.0, OpenID Connect, and JWT Strong interest in security and secure-by-design engineering practicesExperience building and consuming RESTful APIsFamiliarity ..... full job details .....