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Senior Dot Net Developer Jobs in Washington, DC (NOW HIRING)

SR .NET DEVELOPER

Bethesda, MD ยท On-site

$58.75 - $75/hr

JOB TITLE - SR .NET DEVELOPER Job Title: .Net Developer Reports to: Program Manager Location: Bethesda, MD; Arlington, VA Start Date: Immediately Clearance Requirement: Public Trust Tax Term:-W2 or ...

SR .NET DEVELOPER

Bethesda, MD ยท On-site

$58.75 - $75/hr

JOB TITLE - SR .NET DEVELOPER Job Title: .Net Developer Reports to: Program Manager Location: Bethesda, MD; Arlington, VA Start Date: Immediately Clearance Requirement: Public Trust Tax Term:-W2 or ...

Senior .NET Developer at McLean, VA

Mclean, VA ยท On-site

$55 - $72.75/hr

Senior .NET Developer Location: 100% On-site (Monday-Friday) in McLean, VA Key Qualifications Minimum 7 years of hands-on experience with: * * .NET Framework , .NET Core , ASP.NET , MVC , C#

Senior .NET Developer

Washington, DC ยท On-site

$62.25 - $79.25/hr

The client seeks senior ..NET Developers to support a complex application in the Washington D.C ... NET Web apps Experience developing/working with the following: ASP.Net, C# JavaScript, JQuery ...

Senior .Net Developer

Alexandria, VA ยท On-site

$125K - $135K/yr

The Senior .NET Developer's responsibilities include participating in the entire software development life cycle, developing new web applications and supporting legacy systems. This will be a hands ...

Senior .Net Developer

Alexandria, VA ยท On-site

$125K - $140K/yr

The Senior .NET Developer's responsibilities include participating in the entire software development life cycle, debugging applications and configuring existing systems. Our services provide ...

SrNet Developer

Herndon, VA ยท On-site

$56 - $74/hr

Senior .NET Developer A financial services firm located in Virginia and Maryland has an exciting full-time opportunity for a Senior .NET Developer. This position will support the CTO in implementing ...

SrNet Developer

Bethesda, MD ยท On-site

$58.25 - $76.75/hr

Senior .NET Developer A financial services firm located in Virginia and Maryland has an exciting full-time opportunity for a Senior .NET Developer. This position will support the CTO in implementing ...

SrNet Developer

Bethesda, MD ยท On-site

$58.25 - $76.75/hr

Senior .NET Developer A financial services firm located in Virginia and Maryland has an exciting full-time opportunity for a Senior .NET Developer. This position will support the CTO in implementing ...

Senior .NET Developer

Washington, DC ยท Remote

$62.25 - $79.25/hr

Seeking a Senior Developer to design, develop, and maintain high-quality software solutions. This ... SNS * Elastic Container Registry * .NET * Python * Network Load Balancer * Application Load ...

Senior .NET Developer

Washington, DC ยท Remote

$62.25 - $79.25/hr

Seeking a Senior Developer to design, develop, and maintain high-quality software solutions. This ... SNS * Elastic Container Registry * .NET * Python * Network Load Balancer * Application Load ...

SrNet Developer

Herndon, VA ยท On-site

$56 - $74/hr

Senior .NET Developer A financial services firm located in Virginia and Maryland has an exciting full-time opportunity for a Senior .NET Developer. This position will support the CTO in implementing ...

Sr. .Net Developer II

Reston, VA ยท On-site

$145K - $165K/yr

Net Developer II, you will serve as a senior full-stack engineer and technical lead, building and modernizing enterprise applications using .NET and React while driving architecture, development ...

Senior .NET Developer

Mclean, VA

$55.50 - $70.75/hr

The Senior Developer position requires the ability to provide hands-on development skills (primarily ASP .NET and SQL) and direct development team management in both a Waterfall and an Agile Scrum ...

Showing results 21-40

Senior Dot Net Developer information

See Washington, DC salary details

$41

$68

$88

How much do senior dot net developer jobs pay per hour?

As of Sep 6, 2026, the average hourly pay for senior dot net developer in Washington, DC is $68.18, according to ZipRecruiter salary data. Most workers in this role earn between $59.90 and $76.25 per hour, depending on experience, location, and employer.

What does a senior dot net developer do?

A Senior Dot Net Developer designs, develops, and maintains software applications using Microsoft's .NET framework. They work on complex projects, often leading development teams, architecting solutions, and ensuring code quality through best practices. Their responsibilities also include troubleshooting issues, optimizing application performance, and mentoring junior developers. They typically collaborate with other IT professionals and stakeholders to deliver scalable and efficient software solutions.

What are the key skills and qualifications needed to thrive as a senior dot net developer?

To thrive as a Senior Dot Net Developer, you need advanced proficiency in C#, .NET frameworks, object-oriented programming, and a bachelor's degree in computer science or a related field. Expertise with Visual Studio, SQL Server, Azure DevOps, and relevant certifications like Microsoft Certified: .NET Developer are highly valued. Strong problem-solving, leadership, and effective communication skills help drive complex projects and mentor junior team members. These competencies ensure robust, scalable software solutions and foster high-performing development teams.

How does a senior .NET developer typically collaborate with cross-functional teams during a project lifecycle?

As a Senior .NET Developer, you will frequently work alongside product managers, UI/UX designers, quality assurance testers, and other developers to deliver robust software solutions. Your role often involves clarifying technical requirements, providing input on architecture and feasibility, and ensuring seamless integration with other systems. Effective communication and proactive problem-solving are vital, as you'll help bridge the gap between technical and non-technical stakeholders. Regular code reviews and agile ceremonies like sprint planning and stand-ups are common in this collaborative environment.

What is the difference between Senior Dot Net Developer vs Software Engineer?

AspectSenior Dot Net DeveloperSoftware Engineer
Required CredentialsBachelor's in CS or related, .NET certificationsBachelor's in CS or related, various programming certifications
Work EnvironmentDeveloping .NET applications, coding, debuggingDesigning, coding, testing software across platforms
Employer & Industry UsageTech companies, finance, healthcare using .NETBroad industry use, including tech, finance, startups
Common Search & ComparisonYesYes

The main difference between a Senior Dot Net Developer and a Software Engineer lies in their focus areas. Senior Dot Net Developers specialize in building and maintaining applications using the .NET framework, often with specific certifications. Software Engineers have a broader scope, working across various programming languages and platforms. Both roles are vital in tech industries, but the Senior Dot Net Developer role is more specialized in Microsoft technologies.

What are the most commonly searched types of Dot Net Developer jobs in Washington, DC?

The most popular types of Dot Net Developer jobs in Washington, DC are:

What are popular job titles related to Senior Dot Net Developer jobs in Washington, DC?

For Senior Dot Net Developer jobs in Washington, DC, the most frequently searched job titles are:

What job categories do people searching Senior Dot Net Developer jobs in Washington, DC look for?

The top searched job categories for Senior Dot Net Developer jobs in Washington, DC are:

Infographic showing various Senior Dot Net Developer job openings in Washington, DC as of August 2026, with employment types broken down into 1% As Needed, 90% Full Time, 6% Part Time, 2% Contract, and 1% Nights. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $141,823 per year, or $68.2 per hour.

SR .NET DEVELOPER

Twenty First Systems

Bethesda, MD โ€ข On-site

$58.75 - $75/hr

Contractor

Re-posted 6 days ago


Job description

JOB TITLE - SR .NET DEVELOPER
Job Title: .Net Developer
Reports to: Program Manager
Location: Bethesda, MD; Arlington, VA
Start Date: Immediately
Clearance Requirement: Public Trust
Tax Term:-W2 or C2C
Hourly Rate:- 70$
Visa Status:- Must be a U.S. Citizen or U.S. Legal Permanent Resident(GC)
Job Summary:
The experienced.NET Developer is a member of the project team who takes responsibility for implementing parts of the system architecture using best practices in an agile development environment. This will include coding, unit testing, using design patterns, learning new technologies, and becoming an expert in one part of the system. The candidate will also be expected to provide technical leadership, architectural support, and overall solution design support.
Qualified applicants must be detail-oriented, result-driven individuals who work well within team environments and have good interpersonal skills, as well as good client interaction skills.
Responsibilities:
Responsible for design, development, and implementation of solutions to integrate with other applications to exchange data
Work with system owners, business owners, technical teams, and functional teams to design, implement, test, and validate a system.
Write .NET and ASP.Net code based on requirements defined in use cases.
Develop Object Oriented code and/or provide maintenance and enhancements to existing code using .NET and ASP .NET
Work with the team and business users to understand requirements, write functional and technical specifications
Work with a multidisciplinary set of stakeholder, contractors, and team members to design and develop software solutions
Develop new code and/or support operations, maintenance, and enhancements of existing code.
Develop conceptual and technical design including use of OOA and OOD techniques.
Conduct multiple levels of testing including unit, system, integration and performance.
Design, develop, and test software solutions primarily composed of Microsoft technologies
Estimate and plan releases
Requirements:
Must be a U.S. Citizen or U.S. Legal Permanent Resident
Eligible for U.S. Government Clearance.
Experience Guidelines:
Minimum 5 years in systems integration and development, package implementation, and/or interactive design
Minimum 4 years in .NET development
Knowledge and Experience in C#, .Net, ASP .NET, and Microsoft SQL Server
Solid understanding of all parts of Software Engineering (e.g. Requirements, Design, Implementation, Testing) and the Software Development Life Cycle (SDLC)
Experience working in agile or iterative SDLCs
Experience with Object Oriented Technologies
Ability to work with key owners and stakeholders to document requirements
Experience with .NET-specific technologies such as Windows Presentation Foundation (WPF), Windows Communication Foundation (WCF) or Workflow Foundation (WF) is desirable
Experience with SharePoint is highly desirable
Experience integrating, modifying, and configuring Commercial Off The Shelf (COTS) products
Education:
Bachelor's Degree required from college or University
About Our Client
Our client is a leading provider of consultยฌing, technology, and marketing services to a wide array of U.S. governmental agencies. Focused on driving long-term change and transforming the citizen experience, we use technology to help agencies become more accessible and transparent. With a track record of delivering mission-critical solutions and the ability to leverage commercial best practices, they serve as trusted advisers to government agencies such as the Federal Bureau of Investigation, Library of Congress, National Institutes of Health, United States Department of Health and Human Services, and United States Department of Homeland Security.
Sapient is a registered service mark of Sapient Corporation.
*Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of this role, which include hearing, speaking, typing, and occasionally moving and/or lifting up to 15 pounds.
Our client is an Equal Opportunity / Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, orientation, national origin, disability, or protected veteran status.