{"schemaVersion":"jobsearcher.job.v1","id":"ff95ec829352fa8edfb378ae","url":"https://jobsearcher.com/jobs/ff95ec829352fa8edfb378ae","canonicalUrl":"https://jobsearcher.com/jobs/ff95ec829352fa8edfb378ae","title":"Senior Full Stack Developer","description":"Senior Full Stack Developer - C#/.NET -Long Island, NYOur client, a well-established financial services organization on Long Island, is investing heavily in a major technology modernization initiative and is looking for a Senior Full Stack Developer to join the team.What You’ll Do:Develop and modernize enterprise applications using C#/.NETHelp transition legacy VB.NET applications to modern .NET architectureWork extensively with SQL Server and complex relational databasesLeverage AI coding tools such as Claude and Microsoft Copilot to accelerate development and improve code qualityWhat We’re Looking For:Senior-level C#/.NET Full Stack development experienceExpert-level SQL Server skillsExperience modernizing legacy applicationsCurrent hands-on experience with AI-assisted coding/development toolsStrong problem-solving skills and the ability to work across the full technology stackThis is an opportunity to join a stable, highly respected financial services firm while working on meaningful modernization initiatives and the next generation of software development.","company":"Confidential","rawCompany":"confidential","city":"Islip","state":"NY","isRemote":false,"isActive":true,"createdAt":"2026-11-12T03:48:18.714Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior Full Stack Developer","description":"Senior Full Stack Developer - C#/.NET -Long Island, NYOur client, a well-established financial services organization on Long Island, is investing heavily in a major technology modernization initiative and is looking for a Senior Full Stack Developer to join the team.What You’ll Do:Develop and modernize enterprise applications using C#/.NETHelp transition legacy VB.NET applications to modern .NET architectureWork extensively with SQL Server and complex relational databasesLeverage AI coding tools such as Claude and Microsoft Copilot to accelerate development and improve code qualityWhat We’re Looking For:Senior-level C#/.NET Full Stack development experienceExpert-level SQL Server skillsExperience modernizing legacy applicationsCurrent hands-on experience with AI-assisted coding/development toolsStrong problem-solving skills and the ability to work across the full technology stackThis is an opportunity to join a stable, highly respected financial services firm while working on meaningful modernization initiatives and the next generation of software development.","datePosted":"2026-11-12T03:48:18.714Z","dateModified":"2026-11-12T03:48:18.714Z","hiringOrganization":{"@type":"Organization","name":"Confidential","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Islip","addressRegion":"NY","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"ff95ec829352fa8edfb378ae"},"url":"https://jobsearcher.com/jobs/ff95ec829352fa8edfb378ae"}}