{"schemaVersion":"jobsearcher.job.v1","id":"dbef84cf78a2986f9c98f0c8","url":"https://jobsearcher.com/jobs/dbef84cf78a2986f9c98f0c8","canonicalUrl":"https://jobsearcher.com/jobs/dbef84cf78a2986f9c98f0c8","title":"Lead Dotnet Developer","description":"W2 POSITION || Remote Seeking a Software Engineer III to join an established application-development team supporting .NET applications, .NET Framework solutions, and SQL-based processes. The engineer will focus primarily on identifying and remediating security vulnerabilities within the existing application portfolio.This position requires a hands-on developer who can evaluate scan findings, implement secure code changes within short remediation timelines, and validate solutions through unit testing. When capacity permits, the engineer may also contribute to new application-development and enhancement projects.Key ResponsibilitiesAnalyze vulnerability-scan findings affecting existing .NET applications.Remediate application and code-level security vulnerabilities within required timelines.Develop and maintain applications using ASP.NET Core, C#, and the .NET ecosystem.Work with Entity Framework across application and data-access layers.Develop, enhance, and troubleshoot SQL Server solutions.Write and optimize T-SQL queries, stored procedures, and other database components.Perform unit testing to validate vulnerability fixes and application changes.Investigate defects and perform root-cause analysis across application and database layers.Use Git for source control and collaborative software development.Support application builds and deployments through established CI/CD processes.Work with Harness deployment pipelines after joining the team.Document technical changes, testing results, and remediation activities.Collaborate effectively with a fully remote and geographically dispersed engineering team.Contribute to new development and application-enhancement work as priorities permit.Required QualificationsStrong hands-on software-development experience with C# and ASP.NET Core.Experience supporting applications built with .NET and .NET Framework.Practical experience with Entity Framework.Strong SQL Server development skills.Experience writing T-SQL queries and stored procedures.Experience diagnosing and correcting application defects or security vulnerabilities.Ability to perform unit testing and validate code changes independently.Experience using Git-based source-control workflows.Familiarity with standard DevOps and CI/CD practices.Ability to manage time-sensitive remediation assignments in a remote environment.Preferred QualificationsExperience remediating vulnerabilities identified through application-security scanning.Experience working with Harness for application deployments.Familiarity with secure-coding practices and common application-security risks.Experience supporting or modernizing enterprise applications.Experience working with distributed Agile development teams.Technical EnvironmentC#ASP.NET Core.NET and .NET FrameworkEntity FrameworkSQL ServerT-SQLStored proceduresGitHarnessCI/CD pipelinesUnit testing","company":"Fustis","rawCompany":"fustis","city":"Dallas","state":"TX","isRemote":false,"isActive":false,"createdAt":"2026-09-06T08:22:17.222Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Lead Dotnet Developer","description":"W2 POSITION || Remote Seeking a Software Engineer III to join an established application-development team supporting .NET applications, .NET Framework solutions, and SQL-based processes. The engineer will focus primarily on identifying and remediating security vulnerabilities within the existing application portfolio.This position requires a hands-on developer who can evaluate scan findings, implement secure code changes within short remediation timelines, and validate solutions through unit testing. When capacity permits, the engineer may also contribute to new application-development and enhancement projects.Key ResponsibilitiesAnalyze vulnerability-scan findings affecting existing .NET applications.Remediate application and code-level security vulnerabilities within required timelines.Develop and maintain applications using ASP.NET Core, C#, and the .NET ecosystem.Work with Entity Framework across application and data-access layers.Develop, enhance, and troubleshoot SQL Server solutions.Write and optimize T-SQL queries, stored procedures, and other database components.Perform unit testing to validate vulnerability fixes and application changes.Investigate defects and perform root-cause analysis across application and database layers.Use Git for source control and collaborative software development.Support application builds and deployments through established CI/CD processes.Work with Harness deployment pipelines after joining the team.Document technical changes, testing results, and remediation activities.Collaborate effectively with a fully remote and geographically dispersed engineering team.Contribute to new development and application-enhancement work as priorities permit.Required QualificationsStrong hands-on software-development experience with C# and ASP.NET Core.Experience supporting applications built with .NET and .NET Framework.Practical experience with Entity Framework.Strong SQL Server development skills.Experience writing T-SQL queries and stored procedures.Experience diagnosing and correcting application defects or security vulnerabilities.Ability to perform unit testing and validate code changes independently.Experience using Git-based source-control workflows.Familiarity with standard DevOps and CI/CD practices.Ability to manage time-sensitive remediation assignments in a remote environment.Preferred QualificationsExperience remediating vulnerabilities identified through application-security scanning.Experience working with Harness for application deployments.Familiarity with secure-coding practices and common application-security risks.Experience supporting or modernizing enterprise applications.Experience working with distributed Agile development teams.Technical EnvironmentC#ASP.NET Core.NET and .NET FrameworkEntity FrameworkSQL ServerT-SQLStored proceduresGitHarnessCI/CD pipelinesUnit testing","datePosted":"2026-09-06T08:22:17.222Z","dateModified":"2026-09-06T08:22:17.222Z","hiringOrganization":{"@type":"Organization","name":"Fustis","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Dallas","addressRegion":"TX","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"dbef84cf78a2986f9c98f0c8"},"url":"https://jobsearcher.com/jobs/dbef84cf78a2986f9c98f0c8"}}