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Senior .NET Developer

Job in Columbia, Lexington County, South Carolina, 29228, USA
Listing for: InterSources
Full Time position
Listed on 2025-12-02
Job specializations:
  • IT/Tech
Job Description & How to Apply Below
Location: Columbia

Job Title:

Systems Software Programmer — Project Lead

Location:

100% Remote (EST hours)

Contract Duration: 12 Months (Possible Extension)

Interview: 1 Round Virtual

Travel:
Up to 5 days quarterly to Columbia, SC

Daily Responsibilities
  • Modernize legacy systems into ASP.NET MVC or .NET Core environments
  • Perform design, coding, configuration, testing, debugging, and documentation
  • Modify existing applications to meet security standards (NIST 800-53, FISMA, SC Info Sec)
  • Support migration from older platforms to modern environments
  • Update database connection strings to support DB2 → SQL Server migration
  • Add new functionality to replace mainframe forms and streamline backend processes
  • Monitor system performance, capacity, and support Tier-2 troubleshooting
  • Ensure application compatibility in Chrome, Firefox, and IE
  • Participate in full SDLC activities and follow agency IT standards
  • Create and maintain system documentation, technical specs, and diagrams
  • Work with project teams, SMEs, and leadership to deliver updates
  • Use GIT for source code management
  • Support reporting using RDLC, SSRS, and Power BI
Required Skills
  • 5+ years ASP.NET & MVC Framework
  • 5+ years C#
  • 5+ years Visual Studio
  • 5+ years .NET Framework (4.5/4.8)
  • 5+ years SQL
  • 3+ years DB2
  • JQUERY
  • AJAX
  • GIT
  • Web Services
  • RDLC Reporting / Power BI
Preferred Skills
  • Version control tools (TFS, SVN, GIT)
  • HR, Financial, or Administrative system experience
  • Experience working with PI/PHI data security
  • Strong written and verbal communication
  • Ability to work collaboratively with teams and customers
Education
  • Bachelor’s degree in Computer Science, Engineering, Technology, or related field

OR equivalent work experience

About US:

Inter Sources Inc. is a Small, Woman, and Minority-Owned Business Enterprise, ISO/IEC 27001, SOC 2 Type 2 certified company with massive 18+ years of diversified experience in providing IT Consulting Services, Artificial Intelligence, Data Analysis, Application Development, Cloud Services, Cybersecurity, Digital Marketing, ERP Management, Custom Software Development, Web Development, UI/UX Design, System Integration, QA Support etc. We make reasonable accommodations for clients and employees, and we do not discriminate based on any protected attribute including race, religion, color, national origin, gender sexual orientation, gender identity, age, or marital status.

We also are a Google Cloud and Oracle partner company.

Inter Sources

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Position Requirements
10+ Years work experience
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