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Senior Software Developer Jobs in Gaithersburg, MD

VTG

Senior Software Developer

Herndon, VA · On-site

$56 - $74/hr

Overview We are seeking a versatile Senior Software Developer with expertise in secure software engineering. The ideal candidate will combine technical proficiency in development tools and ...

NS2 Mission

Senior Software Developer

Chantilly, VA · On-site

$56.25 - $74.50/hr

We're seeking a Senior Software Developer to join our team in Chantilly, VA , where you'll design, develop, and enhance enterprise Java applications in a collaborative Agile environment. If you're ...

VT Group (VTG)

Senior Software Developer

Herndon, VA · On-site

$56 - $74/hr

VT Group (VTG) is seeking a versatile Senior Software Developer with expertise in secure software engineering. The ideal candidate will work in an agile environment, collaborating with cross ...

Wsgr

Senior Software Developer

Washington, DC · On-site +1

$147K - $198K/yr

Wilson Sonsini is seeking an experienced Senior Software Developer to join our Innovations team. The software developers on our team are the primary contributors to Neuron on both the frontend and ...

Leidos

Sr. Software Developer

Gaithersburg, MD

$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 ...

Redhorse Corporation

Senior Software Developer

Arlington, VA · On-site

$62.75 - $83/hr

To support this mission, we are seeking a Senior Software Developer to lead the evolution of the DOJ National Classified Services (NCS) application stack. In this role, you won't just write code; you ...

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 ...

V2X

Senior Software Developer

Chantilly, VA · On-site

$55.75 - $73.75/hr

We are seeking a TS/SCI with Polygraph cleared Senior Software Developer who will focus on the development and enhancement support for existing applications as well as new development.

Iridium Satellite, LLC

Senior Software Developer

Reston, VA · On-site +1

$57.50 - $76/hr

Join us as a Senior Software Developer and help power the mission systems that keep national security space operations running. In this role, you'll be responsible for identifying and autonomously ...

Iridium Satellite, LLC

Senior Software Developer

Reston, VA · On-site +1

$57.50 - $76/hr

Join us as a Senior Software Developer and help power the mission systems that keep national security space operations running. In this role, you'll be responsible for identifying and autonomously ...

Iridium Satellite, LLC

Senior Software Developer

Reston, VA · On-site

$57.50 - $76/hr

Join us as a Senior Software Developer and help power the mission systems that keep national security space operations running. In this role, you'll be responsible for identifying and autonomously ...

Iridium Satellite, LLC

Senior Software Developer

Reston, VA · On-site +1

$57.50 - $76/hr

Join us as a Senior Software Developer and help power the mission systems that keep national security space operations running. In this role, you'll be responsible for identifying and autonomously ...

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All JobsSoftware Developer JobsSenior Software Developer JobsSenior Software Developer Jobs in Gaithersburg, MD

Senior Software Developer information

See Gaithersburg, MD salary details

$16

$66

$94

How much do senior software developer jobs pay per hour?

As of Aug 9, 2026, the average hourly pay for senior software developer in Gaithersburg, MD is $66.70, according to ZipRecruiter salary data. Most workers in this role earn between $56.63 and $74.81 per hour, depending on experience, location, and employer.

What skills and qualifications are needed to thrive as a senior software developer?

To thrive as a Senior Software Developer, you need deep expertise in programming languages, software architecture, and problem-solving, typically backed by a bachelor’s degree in computer science or a related field. Proficiency with development frameworks, version control systems like Git, and cloud platforms such as AWS or Azure is standard, and certifications in these areas can be beneficial. Leadership, strong communication, and mentoring abilities set standout candidates apart in this role. These skills ensure that complex projects are delivered efficiently, code quality is maintained, and junior team members are effectively guided for overall team success.

What does a senior software developer do?

As a Senior Software Developer, you’ll typically be responsible for leading complex development projects, designing technical solutions, and mentoring junior team members. Daily tasks often include writing and reviewing code, participating in architecture discussions, collaborating with cross-functional teams (such as QA, product management, and DevOps), and troubleshooting high-level technical issues. You may also be involved in setting coding standards, conducting code reviews, and helping to plan sprints or project roadmaps.

What is a senior software developer?

Senior Software Developers are experienced professionals who design, develop, and maintain complex software applications. They often lead development teams, mentor junior developers, and make critical architectural decisions. Their responsibilities include writing high-quality code, troubleshooting technical issues, and ensuring that software projects meet performance and security standards. With deep expertise in programming languages and software engineering principles, they play a key role in delivering successful technology solutions for organizations.

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

AspectSenior Software DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; experience often 5+ yearsBachelor's or higher in CS or related field; similar experience levels
Work EnvironmentCollaborates on complex projects, mentors juniors, leads technical effortsDesigns, develops, tests software; may work on specific modules or systems
Industry UsageCommonly used in tech companies, startups, and enterprise firmsWidely used across industries, often interchangeable with developer roles

The main difference is that Senior Software Developers typically have more experience, leadership responsibilities, and focus on complex project oversight, while Software Engineers may focus more on designing and implementing software solutions. Both roles require similar credentials and are integral in software development teams, but Senior Software Developers often take on mentorship and strategic tasks.

More about Senior Software Developer jobs
What are the most commonly searched types of Software Developer jobs in Gaithersburg, MD? The most popular types of Software Developer jobs in Gaithersburg, MD are:
What are popular job titles related to Senior Software Developer jobs in Gaithersburg, MD? For Senior Software Developer jobs in Gaithersburg, MD, the most frequently searched job titles are:
What job categories do people searching Senior Software Developer jobs in Gaithersburg, MD look for? The top searched job categories for Senior Software Developer jobs in Gaithersburg, MD are:
What cities near Gaithersburg, MD are hiring for Senior Software Developer jobs? Cities near Gaithersburg, MD with the most Senior Software Developer job openings:
Senior Software Developer jobs near you
Infographic showing various Senior Software Developer job openings in Gaithersburg, MD as of August 2026, with employment types broken down into 81% Full Time, 16% Part Time, and 3% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $138,730 per year, or $66.7 per hour.

Senior Software Developer

VTG

Herndon, VA • On-site

$56 - $74/hr

Full-time

Re-posted 26 days ago

Job description

Overview
We are seeking a versatile Senior Software Developer with expertise in secure software engineering. The ideal candidate will combine technical proficiency in development tools and cyber security. The candidate will work in an agile environment, collaborating with cross-functional teams to address a broad range of IT issues while safeguarding customer assets.
What will you do?
• Design, develop, test, and deploy secure Windows applications, services, and web services using .NET (C#, WPF/XAML, C++), ASP.NET MVC Web API, HTML/CSS, Python, and PowerShell, ensuring integration with IIS and adherence to secure coding standards.
• Develop and automate scripts using PowerShell for system administration, problem-solving, and security-related tasks, such as monitoring and mitigating vulnerabilities in Windows environments.
• Manage cloud-based solutions on AWS and Azure, incorporating security best practices for deployment and access controls.
• Utilize tools like GitHub, Jira, Jenkins, and Confluence for version control, issue tracking, continuous integration/deployment (CI/CD), and documentation, while ensuring secure configurations.
• Working with customer-specific IT tools, including Secure Token Service (STS) and DataHound, to integrate secure authentication and data management into applications.
• Participate in Agile methodologies and ceremonies (e.g. sprints, stand-ups, retrospectives) to deliver features iteratively.
• Create and maintain comprehensive documentation, including requirements gathering, design documents, technical writing, and A&A artifacts (e.g. security plans, test reports, and authorization packages).
Do you have what it takes?
• Must have a Top Secret Clearance with Polygraph
• Minimum 6 years' experience in software development
• Bachelor's degree in Computer Science, Information Security, or a related field (or equivalent experience)
• Proficiency with .NET (C#, WPF/XAML, C++), Web (ASP.NET MVC Web API, HTML/CSS), Python, PowerShell
• Proficiency with developing Windows Applications, Windows Services, and Web Services on IIS
• Experience working with AWS and Azure
• Experience using GitHub, Jira, Jenkins, and Confluence
• Proficiency with Secure Token Service (STS) and DataHound (customer-specific IT tools)
• Experience with Microsoft PowerBI
• Familiarity with Windows System Administration and troubleshooting
• Familiarity with the Software Development Lifecycle (SDLC), including configuring and deploying to IIS.
• Experience with requirements gathering, creation of design documentation, and technical writing
Preferred Education, Experience, & Skills:
• Familiarity with the Agile methodology and ceremonies
• Strong problem-solving skills and the ability to thrive in a dynamic, issue-diverse IT landscape

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