Joining a focused application security initiative, the remote Mid-Level Full Stack Engineer will manage hands-on engineering tasks across the full stack, including upgrading .NET libraries, remediating vulnerabilities in Angular components, and hardening Dockerfiles. Key responsibilities Remediate security findings through dependency upgrades, code-level fixes, and container hardening Write unit tests for every fix to ensure vulnerabilities are closed and features remain functional Document processes and findings to support team knowledge and prevent repetitive work Required qualifications 3-5 years of professional software engineering experience Proficient in C# / .NET and comfortable with ASP.NET Core web applications Strong experience in TypeScript and a modern frontend framework, preferably Angular Working SQL knowledge, including writing queries and understanding parameterization Habitual in writing tests, with experience in unit testing and ideally integration testing