Senior .NET App Developer — Process & Workflow Apps

ASSYST, Inc.; Rockville (MD); On-site; USD 120,000 - 150,000; Full time

Job summary

ASSYST, Inc. is seeking a Senior .NET Application Developer in Rockville, MD to drive development, modernization, and maintenance of enterprise web apps and workflow solutions. You will translate business requirements into production-ready solutions, with focus on .NET, SQL Server/Oracle, and UI/UX design.

Required: MS in CS/IT or related field; strong .NET/Web API, MVC, Clean Architecture, SSO/Azure AD, and data mapping with SQL Server/Oracle. Government-project exposure preferred.

Qualifications

• Master’s degree in Computer Science, IT or related field.
• Strong experience in .NET web app and Web API development.
• Experience with MVC and Clean Architecture.
• Database administration and data migration with SQL Server/Oracle.
• Proficiency in VB.NET, C#, Blazor, React, HTML and SQL.
• SSO/Azure AD integration and AI-assisted development experience.

Responsibilities

• Design, develop, and maintain .NET web apps and Web APIs.
• Modernize legacy applications and support HighGear workflows.
• Map and migrate data across databases to SQL Server.
• Prepare deployment packages for DEV, TEST, PROD environments.
• Collaborate with PMs and tech teams in structured governance.

Skills

.NET Web

MVC

Clean Architecture

VB.NET

C#

Blazor

React

HTML

SQL

Oracle

Azure AD

AI Copilot

Education

Master's degree

Tools

SQL Server

HighGear

Web APIs

Job description

ASSYST, Inc. is seeking a Senior .NET Application Developer in Rockville, MD to drive development, modernization, and maintenance of enterprise web apps and workflow solutions. You will translate business requirements into production-ready solutions, with focus on .NET, SQL Server/Oracle, and UI/UX design.

Required: MS in CS/IT or related field; strong .NET/Web API, MVC, Clean Architecture, SSO/Azure AD, and data mapping with SQL Server/Oracle. Government-project exposure preferred.