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Senior Net Software Developer Jobs in Frederick, MD

PROLIM Global Corporation

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 ...

OpenText

Sr. Software Developer

Gaithersburg, MD · On-site

$124K - $186K/yr

YOUR IMPACT Senior Software Developer role at OpenText is more than just a job, it's an opportunity to impact lives. As a key contributor, you'll be instrumental in designing, developing, and ...

Open Text Inc.

Sr. Software Developer

Gaithersburg, MD

$124K - $186K/yr

YOUR IMPACT Senior Software Developer role at OpenText is more than just a job, it's an opportunity to impact lives. As a key contributor, you'll be instrumental in designing, developing, and ...

Leidos

Senior Software Developer

Gaithersburg, MD · On-site

$107K - $195K/yr

We are seeking a Senior Software Developer who will be a member of a dynamic team Air Traffic Management program - SkyLine-X SkyLine-X provides an array of advanced air traffic management ...

Leidos

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

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

Senior Software Developer

Gaithersburg, MD · On-site

$107K - $195K/yr

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

Senior Software Developer

Gaithersburg, MD · On-site

$107K - $195K/yr

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.

Certify

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 ...

Certify

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 ...

Kepora

Software Developer, Senior

Potomac, MD

$56.25 - $74.50/hr

Performs implementation, regular problem solving, maintenance and support for agile software development to modernize systems. Applies advanced consulting skills and/or extensive technical expertise ...

System One

.NET / Power BI Developer

Rockville, MD · On-site

$56 - $69.50/hr

Job Title: Sr. NET Developer / AI Developer Location: Rockville, MD Type: Contract Compensation: Negotiable, W-2 or C2C Hours: NOTE, 35 hour work week All residency status may apply MUST BE CURRENTLY ...

Leidos

Senior Software Engineer

Gaithersburg, MD · On-site

$107K - $195K/yr

Position Overview Leidos is seeking an experienced Senior Software Engineer to join the Chinook ... Certifications such as AWS DevOps Engineer or similar. #Chinook #NSBA If you're looking for comfort ...

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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 3, 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 are the key skills and qualifications needed to thrive as a Senior .NET Software Developer, and why are they important?

To thrive as a Senior .NET Software Developer, you need advanced proficiency in C#, ASP.NET, object-oriented design, and a bachelor’s degree in computer science or related field. Familiarity with tools like Visual Studio, Azure DevOps, SQL Server, and experience with source control systems such as Git are typically required. Strong problem-solving, leadership, and effective communication skills help you navigate complex projects and mentor junior team members. These skills ensure robust, scalable application development and effective collaboration within software teams.

What are Senior .NET Software Developers?

Senior .NET Software Developers are experienced professionals who design, develop, and maintain software applications using the Microsoft .NET framework. They are responsible for writing high-quality code, leading technical projects, and mentoring junior developers. Their work often involves collaborating with other teams, ensuring application performance, and implementing best practices in software development. Senior .NET Developers are also expected to troubleshoot complex issues and contribute to the architectural decisions of their organization.

What Does a Senior .NET Software Developer Do?

A senior .NET software developer helps to create the framework for a web application or piece of software. In this career, you meet with clients or project managers to determine the scope of the project and then begin developing the project with your team. Your duties are to work with other developers, quality assurance analysts, and coders to program, code, and test software. .NET software development projects often require you to integrate database solutions into the project. As a senior developer, you may also have high-level supervisory responsibilities.

What are some common challenges a Senior .NET Software Developer faces when leading a project, and how can they be addressed?

As a Senior .NET Software Developer, one common challenge is balancing hands-on coding with mentoring junior team members and overseeing project architecture. Managing tight deadlines while ensuring code quality and maintaining up-to-date documentation can also be demanding. To address these challenges, it's important to establish clear communication channels, delegate tasks appropriately, and leverage agile methodologies for iterative progress. Regular code reviews and collaboration with cross-functional teams like QA and DevOps help ensure project success and professional growth.

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.

More about Senior Net Software Developer jobs
What are popular job titles related to Senior Net Software Developer jobs in Frederick, MD? For Senior Net Software Developer jobs in Frederick, MD, the most frequently searched job titles are:
What job categories do people searching Senior Net Software Developer jobs in Frederick, MD look for? The top searched job categories for Senior Net Software Developer jobs in Frederick, MD are:
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:
Senior Net Software Developer jobs near you
Infographic showing various Senior Net Software Developer job openings in Frederick, MD as of July 2026, with employment types broken down into 79% Full Time, 10% Part Time, 1% Temporary, and 10% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% 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 Holdings, LLC

Rockville, MD • On-site

$80 - $100/hr

Full-time

Medical, Dental, Vision, Life, Retirement

Posted 11 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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