{"schemaVersion":"jobsearcher.job.v1","id":"7da5bed31a437f36186b30c2","url":"https://jobsearcher.com/jobs/7da5bed31a437f36186b30c2","canonicalUrl":"https://jobsearcher.com/jobs/7da5bed31a437f36186b30c2","title":"Back-End and Application Programming Interface (API) Developer","description":"Overview:Position: Back-End and Application Programming Interface (API) DeveloperJob Type: 5-6 months (high Probability to Extend)Location: Onsite - St. Louis, MOResponsibilities:Develop and maintain robust back-end services and REST APIs using C# and .NET Core.Implement and maintain MVC and microservice architectural patterns.Ensure scalability, performance, and security of APIs.Collaborate with internal API developers and cross-functional teams.Apply best practices in data structures (Lists, Dictionaries, Hashes) in C#, .NET.Integrate back-end systems with Oracle Fusion/OIC and other enterprise applications (as applicable).Follow Agile development methodologies for iterative delivery. Required Skills:4-6 years of professional experience in back-end development.Strong expertise in .NET Core, C#.NET, and API development.Solid understanding of data model design and development.Familiarity with enterprise integration and security practices. Preferred Skills / Certifications:Experience with database optimization and secure data handling practices.Proficiency with Agile delivery tools such as Jira or Azure DevOps.Relevant certifications (e.g., Microsoft Azure Developer, AWS Developer Associate) are a plus.Skills:","company":"Stellar It Group","rawCompany":"stellar it group","city":"St Louis","state":"MO","isRemote":false,"isActive":false,"createdAt":"2026-06-01T21:47:58.302Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"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":"Back-End and Application Programming Interface (API) Developer","description":"Overview:Position: Back-End and Application Programming Interface (API) DeveloperJob Type: 5-6 months (high Probability to Extend)Location: Onsite - St. Louis, MOResponsibilities:Develop and maintain robust back-end services and REST APIs using C# and .NET Core.Implement and maintain MVC and microservice architectural patterns.Ensure scalability, performance, and security of APIs.Collaborate with internal API developers and cross-functional teams.Apply best practices in data structures (Lists, Dictionaries, Hashes) in C#, .NET.Integrate back-end systems with Oracle Fusion/OIC and other enterprise applications (as applicable).Follow Agile development methodologies for iterative delivery. Required Skills:4-6 years of professional experience in back-end development.Strong expertise in .NET Core, C#.NET, and API development.Solid understanding of data model design and development.Familiarity with enterprise integration and security practices. Preferred Skills / Certifications:Experience with database optimization and secure data handling practices.Proficiency with Agile delivery tools such as Jira or Azure DevOps.Relevant certifications (e.g., Microsoft Azure Developer, AWS Developer Associate) are a plus.Skills:","datePosted":"2026-06-01T21:47:58.302Z","dateModified":"2026-06-01T21:47:58.302Z","hiringOrganization":{"@type":"Organization","name":"Stellar It Group","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"St Louis","addressRegion":"MO","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"7da5bed31a437f36186b30c2"},"url":"https://jobsearcher.com/jobs/7da5bed31a437f36186b30c2"}}