IRS Senior .NET Developer

Sorry, this job was removed at 04:15 p.m. (CST) on Friday, Oct 24, 2025
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Lanham, MD
In-Office
Information Technology • Security
The Role
.NET Developer
ROLE
We are seeking a skilled .NET Developer to design, develop, test, and maintain enterprise-grade web applications that support mission-critical business operations. The ideal candidate will have hands-on experience with ASP.NET Core, C#, SQL Server, and API integration, and be capable of working collaboratively in an Agile development environment. This role requires technical depth, creativity, and a passion for developing secure, scalable, and high-performing applications. This is a full-time opportunity. We can offer a competitive salary and a comprehensive benefits package. Apply today.
RESPONSIBILITIES
  • Design, develop, and maintain web applications using .NET Core / .NET Framework and C#.
  • Build and consume RESTful APIs for data exchange across enterprise systems.
  • Support front-end integration using Angular, React, or Razor Pages.
  • Develop and maintain database schemas, stored procedures, and queries in SQL Server.
  • Ensure application security, performance tuning, and compliance with best practices.
  • Participate in Agile/Scrum ceremonies including sprint planning, standups, and retrospectives.
  • Conduct code reviews, unit testing, and support integration testing.
  • Troubleshoot and resolve software defects and production issues.
  • Collaborate with system architects, data engineers, and DevOps teams for deployments and CI/CD pipeline integration.
  • Document technical designs, system configurations, and support procedures.

REQUIRED QUALIFICATIONS
  • 5+ years of professional experience developing .NET applications.
  • Strong proficiency with C#, ASP.NET Core
  • Experience with SQL Server or other relational databases.
  • Familiarity with JavaScript, HTML5, CSS3, and modern UI frameworks.
  • Knowledge of Azure, AWS, or other cloud environments is a plus.
  • Understanding of Agile methodologies and source control (Git, GitHub, Azure DevOps).
  • Excellent analytical and problem-solving skills.

EDUCATION
  • Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).

LOCATION
  • Remote

CLEARANCE
  • U.S. citizenship
  • Must have a Treasury/IRS MBI Clearance

CLIENT
  • Internal Revenue Service

TRAVEL
  • No travel required

WORK HOURS
  • 40 hours per week
  • 8 hours per day

EMPLOYMENT CLASSIFICATION
  • Employment Classification Eligibility — W2  

RELOCATION
  • Not eligible for relocation benefits

West 4th Strategy is an Equal Opportunity (EEO) employer. All qualified applicants will receive consideration for employment without regard to race, color, creed, religion, gender, sexual orientation, ancestry, national origin, age, marital status, mental disability, physical disability, medical condition, pregnancy, political affiliation, military or veteran status, or any other basis prohibited by federal or state law.
Other Considerations: applicants will be subject to a background investigation. Individual’s primary workstation is located in an office area. The noise level in this environment is low to moderate. Regularly required to sit for extended periods up to 80% of the time; frequently required to move about to access file cabinets and use office equipment such as PC, copier, fax, telephone, cell phone, etc. Occasionally required to reach overhead, bend, and lift objects of up to 10 lbs. Specific vision abilities required by this job include the use of computer monitor screens up to 80% of the time.

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The Company
HQ: McLean, Virginia
47 Employees
Year Founded: 2016

What We Do

West 4th Strategy provides rapid response technology services to civilian, defense, and homeland security customers. We build and mobilize dynamic teams of qualified technologists who embody competence, professionalism, and a commitment to results.

We excel at moving fast to find the right people to get the job done.

And the best part of our technology teams? They make the government’s mission their mission. Our teams work with a sense of purpose to power the government.

West 4th Strategy. Our work defines us.

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