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Senior Net Application Developer Jobs in Leesburg, VA

Cloud BC Labs

Sr Application Developer

Reston, VA · On-site +1

$99K - $137K/yr

Position : Sr Application Developer Location : Remote Term : W2 Role Duration : Long term Job Summary: We are seeking a Senior Application Programmer/Developer to provide advanced front-end ...

BLN24

Senior Application Developer

Mclean, VA · On-site

$97K - $133K/yr

Senior Application Developer (NOAA/AWIPS) Company: BLN24 About Us:We find strength in teamwork-a better you is a better us BLN24 is an award-winning Management Consulting Firm thatsupports the U.S.

BLN24

Senior Application Developer

Mclean, VA · Remote

$97K - $133K/yr

Job Title:  Senior Application Developer (NOAA/AWIPS) Company: BLN24 About Us: We find strength in teamwork-a better you is a better us BLN24 is an award-winning Management Consulting Firm ...

CACI

Senior Application Developer

Sterling, VA · On-site

$75K - $158K/yr

Senior Application Developer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required:

Phase2 Technology

Application Developer, Senior

Reston, VA · On-site

$86K - $198K/yr

R0238512 Application Developer, Senior The Opportunity At a certain point, experience-based system design can start to look like clairvoyance. When you've developed so many systems that you can not ...

Aleut Federal

Application Developer - Senior

Reston, VA · On-site +1

$100K - $150K/yr

ServiceNow Certified System Administrator * 2+ Implementation Specialist and/or Application Developer Certifications * CompTIA Security (as applicable) * * Salary Range: $100,000-$150,000 We will ...

LCG Inc

Data Application Developer, Senior

Rockville, MD · On-site

$97K - $134K/yr

Senior Appian Developer, Consultant Frequency: Regular Part time Regular Hours: 16 - 24 hours a ... Maintain application documentation, user guides, quick reference materials, and system manuals as ...

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All JobsNet Application Developer JobsSenior Net Application Developer JobsSenior Net Application Developer Jobs in Leesburg, VA

Senior Net Application Developer information

See Leesburg, VA salary details

$101.7K

$125.8K

$140.6K

How much do senior net application developer jobs pay per year?

As of Sep 12, 2026, the average yearly pay for senior net application developer in Leesburg, VA is $125,802.00, according to ZipRecruiter salary data. Most workers in this role earn between $115,800.00 and $136,500.00 per year, depending on experience, location, and employer.

What cities near Leesburg, VA are hiring for Senior Net Application Developer jobs?

Cities near Leesburg, VA with the most Senior Net Application Developer job openings:

Infographic showing various Senior Net Application Developer job openings in Leesburg, VA as of August 2026, with employment types broken down into 76% Full Time, 20% Part Time, and 4% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $125,802 per year, or $60.5 per hour.

Sr. NET Developer / AI Developer / Power BI

Rockville, MD • On-site

System One
Business Consulting Services • 5 - 10K employees
Learn more about System Oneexternal

$56 - $71.25/hr

Contractor

Medical, Dental, Vision, Life, Retirement

Re-posted 22 days ago

Job description

Job Title: Sr. NET Developer / AI Developer / Power BI Location: MUST BE LOCAL TO MD, VA or DC Type: Contract Compensation: Negotiable, W-2 or C2C Work Model: Hybrid Hours: 35 work hours a week All residency status may apply

Responsibilities

  • Design, build, modernize, and support modern applications in Microsoft Azure
  • Develop and implement cloud-native architectures utilizing .NET Core/.NET 8, C#, and Azure services such as App Services, Functions, API Management, Service Bus, Azure SQL, Azure OpenAI, and AI Foundry.
  • Modernize legacy .NET applications and integrate AI-powered solutions, including Azure AI Foundry, Azure OpenAI, AI agents, Retrieval-Augmented Generation (RAG), and prompt engineering.
  • Utilize GitHub Copilot, GitHub, Azure DevOps, CI/CD pipelines, and containerization tools to streamline development processes.
  • Work with SQL, Cosmos DB, and modern UI frameworks like Blazor, React, or Angular to develop user interfaces and manage data efficiently.
  • Evaluate data, identify trends, conduct feasibility studies, perform gap analyses, and provide actionable insights.
  • Communicate complex ideas clearly to diverse audiences and collaborate effectively with stakeholders, project teams, and leadership.
Requirements
  • Proficiency in C#, ASP.NET Core, and cloud-native development.
  • Strong experience with Azure services, microservices, API security, and Microsoft Entra ID/B2C authentication.
  • Experience modernizing .NET Framework/Web Forms applications to .NET 8 or cloud-native architectures.
  • Hands-on experience with Azure AI Foundry, Azure OpenAI, AI agents, RAG, prompt engineering, and GitHub Copilot.
  • Proficient with GitHub or Azure DevOps, CI/CD pipelines, and containerization.
  • Solid understanding of SQL, Cosmos DB, and modern UI frameworks such as Blazor, React, or Angular.
  • Excellent analytical, problem-solving, communication, and interpersonal skills.
  • Self-motivated, organized, detail-oriented, and able to manage multiple priorities in a fast-paced environment.

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 information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

#M1 #LI-CB3

Ref: #851-Rockville-S1

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About System One

Sourced by ZipRecruiter

System One helps employers get work done more efficiently and economically without compromising quality. Over our 35+ year history, we've helped connect thousands of talented people with innovative companies. The excitement of a perfect fit motivates us every single day.

Industry

Business consulting services and recruiting and staffing services

Company size

5,001 - 10,000 Employees

Headquarters location

Pittsburgh, PA, US

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