Senior Dotnet Developer

Tech Army, LLC; Columbia (SC); Hybrid; USD 90,000 - 140,000; Full time

Job summary

Tech Army, LLC seeks a Senior System Software Programmer to lead projects in a government IT environment. You will design, develop, and support web applications, APIs, and data solutions using .NET, SQL Server, XML, and JSON.

This hybrid role requires strong testing, documentation, and collaboration with cross-functional teams to deliver reliable systems and reports with SSRS/Power BI. 5+ years in .NET and data integration are expected.

Qualifications

• 5+ years of web application development using .NET technologies (ASP.NET, .NET Core)
• 5+ years of SQL database programming and architecture
• 5+ years of unit and integration testing experience
• 5+ years of experience with SSRS and Power BI reporting
• 5+ years supporting COTS/MOTS applications
• 5+ years IT experience in a law-enforcement environment
• 3+ years experience developing data transport using XML/JSON
• Strong troubleshooting, documentation, and customer-service skills

Responsibilities

• Design and develop custom web applications and APIs
• Enhance and troubleshoot new and existing systems
• Develop solutions using C#, ASP.NET, .NET Core, SQL Server, XML, and JSON
• Build reports and dashboards using SSRS, Power BI, or similar tools
• Develop and optimize SQL databases, queries, and data solutions
• Perform unit and integration testing
• Provide technical support to users at multiple locations
• Collaborate with cross-functional teams to identify defects and enhancements
• Prepare technical specifications, requirements, test cases, and system documentation
• Respond to user issues and document resolutions

Skills

C#

ASP.NET

NET Core

Blazor

Razor

Python

XML

JSON

Unit testing

Integration testing

Education

Bachelor's or Master’s in Computer Science / Information Systems

Tools

SQL Server

SSRS

Power BI

XML/JSON data transport

GitHub/DevOps

Job description

Job Title: System Software Programmer - Project Lead (.NET)

Location: Columbia, South Carolina

Employment Type: Full Time, Contract

Work Setup: Hybrid (2 days onsite per week)

We are seeking an experienced Senior .NET Application Developer to support our customer. This role will design, develop, enhance, and support custom web applications, APIs, database solutions, and reports in a service-focused government IT environment.

Key Responsibilities

• Design and develop custom web applications and APIs
• Enhance and troubleshoot new and existing systems
• Develop solutions using C#, ASP.NET, .NET Core, SQL Server, XML, and JSON
• Build reports and dashboards using SSRS, Power BI, or similar technologies
• Develop and optimize SQL databases, queries, and data solutions
• Perform unit and integration testing
• Support custom business applications and document issues and resolutions
• Collaborate with technical teams and subject-matter experts to identify defects and enhancements
• Prepare technical specifications, requirements, test cases, and system documentation
• Provide technical support to users at multiple locations

Required Qualifications

• 5+ years of web application development using .NET technologies or similar web technologies, including ASP.NET, .NET Core, Blazor, Razor, or Python
• 5+ years of SQL database programming and architecture experience
• 5+ years of unit and integration testing experience
• 5+ years of experience with SSRS, Power BI, or comparable reporting technology
• 5+ years of experience supporting COTS and MOTS applications
• 5+ years of IT experience within a law-enforcement environment
• 3+ years of experience developing data transport or integration methods using XML or JSON
• Strong application troubleshooting, technical documentation, and customer-service skills

Preferred Qualifications

• Experience developing AI agents or tools
• Experience with Microsoft 365, SharePoint, Power BI, or Power Apps
• GitHub and/or DevOps experience
• PowerShell scripting and workflow automation experience
• Experience developing automated or manual test scripts

Education

• A bachelor’s or master’s degree in Computer Science, Information Systems, Technology Management, or a related discipline is preferred. Equivalent professional experience may be accepted.