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# Software Engineer (.Net)

- **Company:** REI Systems, Inc.
- **Location:** Sterling, VA, United States
- **Experience:** Experienced
- **Salary:** $75,800.0 - $144,200.0
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Application Programming Interfaces (APIs), Agile Methodology, User Authentication, Automation of Tests, Microsoft Azure, C Sharp (Programming Language), Code Review, Databases, Continuous Integration, Database Development, Database Schema, Software Debugging, Entity Framework, Microsoft SQL Server, Model View Controller (MVC), OAuth, Software Engineering, SQL Stored Procedures, SQL Databases, Web Applications, Azure Data Factory, Software Security, Backend, Git, Deployment Automation, Restful APIs
- **Published:** September 4, 2026
- **Apply:** https://www.careerjet.com/jobad/us42a6b521d9f223b9eca6686566b74d64

## About the Role

Clearance: Ability to obtain and maintain a clearance is preferred., 3-6 years of experience in .NET application development.
Strong experience with: C#, Core / MVC
.NET 6/8, SQL Server
Entity Framework and/or Dapper
REST API development
Experience with Git, Azure DevOps, and Agile methodologies.
Strong analytical, debugging, and problem-solving skills.
Preferred Qualifications
Experience with Azure cloud services and Azure Data Factory (ADF).
Knowledge of OAuth2/JWT authentication and application security.
Experience with CI/CD, automated testing, and deployment tools.
Experience supporting government or public-sector applications.

## Description

REI Systems is seeking a Mid-Level .NET / SQL Developer to support the NYC Checkbook program. The selected candidate will develop, enhance, and maintain enterprise web applications, APIs, and database solutions that support critical financial transparency and reporting systems.
Responsibilities
Develop and maintain applications using C#, Core, .NET 6/8, and SQL Server.
Design and support REST APIs and backend services.
Create and optimize SQL queries, stored procedures, views, and database objects.
Troubleshoot and resolve application and database issues.
Collaborate with Business Analysts, QA, and project stakeholders in an Agile environment.
Support CI/CD pipelines, deployments, and production releases.
Participate in code reviews, testing, documentation, and system modernization efforts.


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