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Senior Dot Net Backend Developer Jobs in Ashburn, VA

Eliassen Group

.NET Backend Engineer

Washington, DC · Remote

.NET Backend Engineer Anywhere Type: Contract Category: Development Industry: Manufacturing Workplace Type: Remote Reference ID: JN -032026-106153 Date Posted: 05/24/2026 Shortcut: * Description

InstantServe LLC

Senior .NET Developer

Washington, DC · Hybrid

$62.25 - $79.25/hr

Senior .NET Developer Location: Washington, DC 200019 Work Arrangement: Hybrid Agency Interview ... The position is for someone with experience in ETL, Back-End, Front-End and Application design, and ...

Annexa Inc.

Senior .Net Developer

Washington, DC

$62.25 - $79.25/hr

Senior .NET Developer Employment Type: Onsite Annexa is currently supporting D.C. Government ... / back-end programming. * 11+ years experience developing enterprise applications that interact ...

Jobsbridge

Senior .NET Developer

Washington, DC

$62.25 - $79.25/hr

The client seeks senior ..NET Developers to support a complex application in the Washington D.C ... NET HTML, CSS MVC Framework SSRS Crystal Reports OOP Concepts Strong backend server side ...

Samprasoft

Lead Backend .Net Developer

Washington, DC · On-site

... and backend developers/ leads with 6-9 year's experience, fit for a lead position who can drive meetings with business, assist developers and be hands-on. Tech stack for backend positions: * C#.NET ...

360 IT Professionals

Sr. .NET Developer

Mclean, VA · On-site

$55 - $72.75/hr

Position: Sr. .NET Developer Location: Mclean, VA Duration: Full-Time Responsible for the design ... NET/ VB.NET, JavaScript, Java and Google Map along with an Oracle 12c database in the backend ...

Clearwaters.IT

Senior .NET Developer

Washington, DC · On-site +1

$62.25 - $79.25/hr

Seeking a Senior Developer to design, develop, and maintain high-quality software solutions. This ... Experience with back-end development, including modern frameworks (.NET, etc.). * Proficiency in ...

Clearwaters.IT

Senior .NET Developer

Washington, DC · Remote

$56.25 - $71.75/hr

Seeking a Senior Developer to design, develop, and maintain high-quality software solutions. This ... Experience with back-end development, including modern frameworks (.NET, etc.). * Proficiency in ...

Clearwaters.IT

Senior .NET Developer

Washington, DC · Remote

$62.25 - $79.25/hr

Seeking a Senior Developer to design, develop, and maintain high-quality software solutions. This ... Experience with back-end development, including modern frameworks (.NET, etc.). * Proficiency in ...

Kasmo Global

Senior .NET Developer

Sterling, VA · Hybrid

$54.50 - $69.25/hr

Senior .NET Developer with MAUI, TDD, and Azure Expertise Location: Atlanta, GA (Hybrid) Need local candidates Visa: GCEAD , H4EAD, H1B( trusted ) Duration: 6 months Need LINKDLEN Need experience of ...

talentmovers inc

Sr. Dot Net developer / Lead

Reston, VA · On-site

$57.25 - $72.75/hr

JD:- We are seeking a dedicated full-stack dot net developer to join our team who is comfortable with both front and back end programming. Full stack developers are responsible for developing and ...

Two95 International Inc.

Senior .NET Developer

Washington, DC · On-site

$62.25 - $79.25/hr

Job Title: Sr .Net Developer Location: Washington, DC Duration: 6+ Months Job Requirements Development experience in enterprise-class systems. Experience configuring, deploying, and monitoring cloud ...

Two95 International Inc.

Senior .NET Developer

Washington, DC · On-site

$62.25 - $79.25/hr

Job Title: Sr .Net Developer Location: Washington, DC Duration: 6+ Months Job Requirements Development experience in enterprise-class systems. Experience configuring, deploying, and monitoring cloud ...

Two95 International Inc.

Senior .Net Developer

Washington, DC · On-site

$62.25 - $79.25/hr

Senior .Net Developer Location: Washington, DC Position Type: Long term contract Security clearance is a plus. Technical Skills : * ASP.NET MVC, WCF. C#.NET, ADO.NET, JQuery, Entity Framework ...

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Senior Dot Net Backend Developer information

See Ashburn, VA salary details

$37

$61

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

As of May 28, 2026, the average hourly pay for senior dot net backend developer in Ashburn, VA is $61.56, according to ZipRecruiter salary data. Most workers in this role earn between $54.09 and $68.85 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Senior Dot Net Backend Developer, and why are they important?

To thrive as a Senior Dot Net Backend Developer, you need deep expertise in C#, .NET frameworks, API development, and database management, usually backed by a degree in computer science or related experience. Mastery of tools like Visual Studio, Azure DevOps, Entity Framework, and familiarity with CI/CD pipelines are commonly expected, often supported by relevant Microsoft certifications. Strong problem-solving, leadership, and effective communication skills help you deliver robust solutions and mentor junior developers. These skills ensure efficient, scalable backend systems and drive technical excellence in complex software projects.

What are the typical collaboration points between a Senior .NET Backend Developer and other teams during a project lifecycle?

As a Senior .NET Backend Developer, you'll regularly collaborate with front-end developers to ensure seamless integration of APIs and user interfaces. You'll also work closely with DevOps teams to optimize deployment pipelines and with QA engineers to address bugs and improve performance. Additionally, participating in architectural discussions with solution architects and product managers is common, as your backend expertise helps shape scalable and maintainable systems. This cross-functional teamwork is essential for delivering robust and reliable applications.

What does a Senior Dot Net Backend Developer do?

A Senior Dot Net Backend Developer is responsible for designing, developing, and maintaining the server-side logic and components of web applications using the Microsoft .NET framework. They focus on creating scalable and efficient APIs, managing databases, and ensuring the security and performance of backend services. In addition to coding, they often mentor junior developers, review code, and collaborate with front-end teams to deliver robust software solutions.

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

AspectSenior Dot Net Backend DeveloperSoftware Engineer
Required CredentialsBachelor's in CS or related, .NET certificationsBachelor's in CS or related, general coding certifications
Work EnvironmentDeveloping backend services in .NET, often in enterprise settingsDesigning and developing software across various platforms and languages
Employer & Industry UsageIT companies, finance, healthcare using Microsoft techTech firms, startups, diverse industries

While both roles involve software development, a Senior Dot Net Backend Developer specializes in building backend systems using .NET technologies, often within enterprise environments. A Software Engineer has a broader scope, working across multiple platforms and languages. The senior developer focuses more on backend architecture, whereas the software engineer may handle full-stack tasks.

What are the most commonly searched types of Dot Net Backend Developer jobs in Ashburn, VA? The most popular types of Dot Net Backend Developer jobs in Ashburn, VA are:
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What job categories do people searching Senior Dot Net Backend Developer jobs in Ashburn, VA look for? The top searched job categories for Senior Dot Net Backend Developer jobs in Ashburn, VA are:
Senior Dot Net Backend Developer jobs near you
Senior .NET Developer/Technical Lead with Security Clearance

Senior .NET Developer/Technical Lead with Security Clearance

System One Holdings, LLC

Rosslyn, VA • Hybrid

$90 - $100/hr

Contractor

Medical, Dental, Vision, Life, Retirement

Posted 10 days ago

Job description

Senior .NET Developer/Technical Lead
Minimum Clearance Required to Start: Secret
Hybrid 4 days a week onsite, Rosslyn, VA
Hourly Rate: $90/hr. to $100/hr. Range, commensurate with experience System One IT has an immediate contract to hire opening for a Senior Full Stack .NET Developer, Lead w/ REACT to support their client’s growing software development contract with a federal end customer in Rosslyn, VA. The Senior .NET/React developer will be responsible for designing, implementing, and testing the application while working closely with Government stakeholders and users to enhance current business processes.
**Must have at least a Secret Clearance to be considered for the role** Responsibilities:
• Serve as a Full Stack .NET Developer, Lead w/ REACT with responsibilities to include:
• Participate in project planning sessions with technical and functional leads, business analysts, and other team members to analyze business requirements and outline the proposed IT solution
• Work with customers to clarify requirements, classify and prioritize user requests, and fix bug requests and operational issues reported by users
• Write, interpret, and analyze technical documentation related to information technology
• Deep understanding of SDLC processes, spanning requirements/issue management, defect tracking, source control, build and test automation, and release management
• Provide recommended software development enhancements or changes in support of existing and projected organizational mission requirements
• Create diagrams representing current application designs, data architecture, and flows
• Develop responsive and accessible user interfaces using React, integrating them with .NET back-end services and APIs Qualifications: Required: • Bachelor’s degree in computer science or related degree
• Active Secret clearance
• 10+ years of experience with .NET framework and customization and development involving programming languages like .NET, ASP.NET, C#, HTML, JavaScript, and jQuery
• 3+ years of experience developing front-end applications with React, including state management (Redux or equivalent), hooks, and reusable component design
• Expertise with Microsoft SQL Server
• Expertise building REST APIs, preferably .NET Web API
• Experience performing requirements analysis using Agile methodologies
• Excellent problem solving and resolution skills
• Experience in Application Security Code Review and/or Application Vulnerability Assessment
• Experience developing 508 compliant, cross-browser compatible user interfaces
• Strong knowledge of Azure DevOps (ADO) and CI/CD pipelines
• Exposure to Agile project management and task tracking tools such as ADO Boards or JIRA Desired:
• Certifications in Azure, AWS, GCP, or other technologies
• Comfortable with designing user interfaces using CSS / Bootstrap
• Experience with React testing frameworks such as Jest or React Testing Library
• Experience working with other front-end frameworks such as Angular System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic, veteran, marital status, or any other characteristic protected by applicable federal, state, or local law.

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