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Technical Specialist .NET, ASP Visual C# with 15+ (Washington DC - INPERSON MANDATORY)

ERPMark IncWashington, DC🇺🇸United StatesPosted Sep 25, 2026

Why This Role Stands Out

This role offers a fantastic opportunity to leverage your extensive .NET, ASP, and Visual C# expertise in a long-term, impactful position with ERPMARK INC. If you are a seasoned technical specialist with over 15 years of experience, thrive in a collaborative, on-site environment, and are ready to contribute to significant projects in Washington, D.C., this is an excellent opportunity to apply.

Quick Overview

Seniority

Mid Senior

Work mode

On Site

Location

Washington, DC, United States

Posted

23 hours ago

SQLSQL ServerC#.NET

Job Description

Technical Specialist .NET, ASP Visual C# with 15+ years (Washington, DC - IN-PERSON MANDATORY)

ERPMARK INC Washington, District of Columbia, United States (On-site)

Senior Technical Specialist .NET, ASP Visual C# with 15+ Yrs

Long Term

Washington, DC (Local/Ready to Relocate)

100% On-site, In-person Interview

Visa: ANY (Must have 15+ yrs Exp)

Immediate Interview - Closing by 09/30

DIRECT CLIENT Position

Number of positions: 4

Length: 11 Months | 10/23/2026 - 09/30/2027 + Position Will Extend

Immediate interviews - In-person interview

Client is looking for:

A Senior .NET/C# Developer with 15+ years of experience who can work 100% onsite in Washington, DC.

Role:

Develop, improve, fix, and support applications using .NET, ASP, and C#.

Daily Responsibilities:

Develop new application features
Fix application issues
Troubleshoot production problems
Work with SQL Server
Create reports and dashboards
Monitor application performance
Work with BA and QA teams
Guide other developers

Must-Have Skills:

15+ years of experience
.NET
ASP
Visual C# / C#
SQL Server
SQL / Procedural Language
Hands-on coding and design experience
Large/complex application experience
Bachelor’s degree or equivalent experience

Resume to Shortlist:

Resume should clearly show 15+ years of hands-on .NET/ASP/C# and SQL Server experience with large and complex applications.

Candidate to Select:

A candidate with strong .NET/C#, SQL Server, application development, and troubleshooting experience, who is ready for 100% onsite work in Washington, DC and an in-person interview.