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Senior Net Software Developer Jobs in Frederick, MD

Senior .Net Developer

Frederick, MD · On-site

$51.25 - $65/hr

Role-Senior .Net Developer Location: 3275 Bennett Creek Avenue, Frederick, MD 21701.Onsite 5 days a ... Net software development skills to add large features| solve bugs| address technical debt| improve ...

As a Senior Software Developer, you'll do more than write exceptional code, you'll help build innovative, secure, and scalable solutions that support Intelligence Community operations. If you're ...

As a Senior Software Developer, you'll do more than write exceptional code, you'll help build innovative, secure, and scalable solutions that support Intelligence Community operations. If you're ...

Sr. Software Developer

Gaithersburg, MD · On-site

$59 - $77.75/hr

As a Senior Software Developer, you'll do more than write exceptional code, you'll help build innovative, secure, and scalable solutions that support Intelligence Community operations. If you're ...

Senior .NET Developer

Rockville, MD · Remote

$125K - $130K/yr

Senior .NET Developer A-TEK, and its subsidiary, Mackson Consulting, are at the forefront of digital innovation, offering advanced IT services and solutions with a focus on emerging technologies. We ...

Overview Leidos is seeking a Sr. Software Development Engineer who will be a member of a dynamic team working on the Federal Aviation Administration's En-Route Automation Modernization (ERAM) system ...

Sr. Software Developer

Gaithersburg, MD · On-site

$87K - $157K/yr

Leidos is seeking a Sr. Software Development Engineer who will be a member of a dynamic team working on the Federal Aviation Administration's En-Route Automation Modernization ERAM) system, which is ...

Leidos is seeking a Sr. Software Development Engineer who will be a member of a dynamic team working on the Federal Aviation Administration's En-Route Automation Modernization ERAM) system, which is ...

Sr. Software Developer

Gaithersburg, MD · On-site

$107K - $195K/yr

AsaSenior Software Developer, you'll domore than writeexceptional code, you'llhelp build innovative, secure, and scalablesolutions that supportIntelligence Communityoperations.If you're ...

Leidos is seeking Senior Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of next-generation flight service and air traffic systems.

Leidos is seeking Senior Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of next-generation flight service and air traffic systems.

Software Developer

Gaithersburg, MD · On-site

$70K - $120K/yr

The software developer will develop, analyze, and create reports for System Transactions, IoT ... Net, Angular JS, JSON, Web Services and Report development with C# andPython. * Experience ...

Software Developer Intern

Gaithersburg, MD · On-site

$20.75 - $27.25/hr

CERTIFY Global is an innovative software organization that provides a seamless patient experience ... Net, Angular JS, JSON, Web Services and Report development with C# andPython. * Experience ...

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Senior Net Software Developer information

See Frederick, MD salary details

$36

$59

$77

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

As of Aug 26, 2026, the average hourly pay for senior net software developer in Frederick, MD is $59.86, according to ZipRecruiter salary data. Most workers in this role earn between $52.60 and $66.92 per hour, depending on experience, location, and employer.

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

AspectSenior Net Software DeveloperSoftware Engineer
Required CredentialsBachelor's in CS or related field, certifications like MCSD often preferredBachelor's or higher in CS or related field, certifications vary
Work EnvironmentTypically in enterprise or corporate settings, focusing on .NET technologiesVaries from startups to large companies, working on diverse projects
Industry UsageCommon in finance, healthcare, and enterprise software sectorsWidely used across tech, finance, healthcare, and more

Both roles require strong programming skills and experience with software development. Senior Net Software Developers focus specifically on .NET frameworks and enterprise applications, while Software Engineers may work across multiple platforms and technologies. The choice depends on the specific tech stack and industry focus.

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What cities near Frederick, MD are hiring for Senior Net Software Developer jobs?

Cities near Frederick, MD with the most Senior Net Software Developer job openings:

Infographic showing various Senior Net Software Developer job openings in Frederick, MD as of August 2026, with employment types broken down into 83% Full Time, and 17% Contract. Highlights an 68% In-person, 4% Hybrid, and 28% Remote job distribution, with an average salary of $124,502 per year, or $59.9 per hour.

Sr. NET Developer / AI Developer / Power BI

System One

Rockville, MD • On-site

$56 - $71.25/hr

Contractor

Medical, Dental, Vision, Life, Retirement

Re-posted 5 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.

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Ref: #851-Rockville-S1


System One logo

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