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Senior Software Developer Jobs in Mount Rainier, MD

3B Staffing LLC

Sr. Software Developer

Washington, DC · On-site

$61.75 - $81.50/hr

Sr. Software Developer Key Responsibilities * Frontend Development: Build intuitive and responsive user interfaces with Next.js and other modern tools. * Data-Centric Development: Work on data-driven ...

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Cortek Inc

Senior Software Developer

Falls Church, VA · On-site

$58.25 - $77/hr

CORTEK is seeking a Senior Software Developer to lead the design and development of solutions within the BUMED operational SharePoint, Microsoft 365, and application environment. This role serves as ...

CACI

Senior Software Developer

Springfield, VA

$57 - $75.25/hr

Senior Software Developer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel Required: Up to 10% Type of ...

Leidos

Senior Software Developer

Chantilly, VA · On-site

$107K - $195K/yr

Leidos is seeking a Senior Software Developer-SME for a 200+ FTE technical development program supporting the Sponsor's Web-based applications. The Software Developer will work with a large team of ...

Leidos

Senior Software Developer

Chantilly, VA · On-site

$107K - $195K/yr

Leidos is seeking a Senior Software Developer-SME for a 200+ FTE technical development program supporting the Sponsor's Web-based applications. The Software Developer will work with a large team of ...

Markon

Senior Software Developer

Annapolis Junction, MD

$195K - $220K/yr

PLEX Solutions, LLC, Part of Markon, is looking for a Sr. Software Developer to support a customer in the Annapolis Junction, MD area. In this role, you will lead complex software engineering efforts ...

Markon

Senior Software Developer

Annapolis Junction, MD · On-site

$195K - $220K/yr

Description PLEX Solutions, LLC, Part of Markon, is looking for a Sr. Software Developer to support a customer in the Annapolis Junction, MD area. In this role, you will lead complex software ...

Radiance Technologies

Senior Software Developer

Mclean, VA · On-site

$150K - $175K/yr

Radiance is seeking a Senior Software & Systems Engineer to lead the design, development, and deployment of Geospatial evaluation software. This initiative aims to build a scalable, repeatable, and ...

Markon

Senior Software Developer

Annapolis Junction, MD · On-site

$195K - $220K/yr

Description PLEX Solutions, LLC, Part of Markon, is looking for a Sr. Software Developer to support a customer in the Annapolis Junction, MD area. In this role, you will lead complex software ...

VTG

Senior Software Developer

Herndon, VA · On-site

$180K - $230K/yr

Overview Seeking a motivated, career and customer-oriented Senior Software Developer to join our team in Herndon VA. What will you do? • Understand requirements and be able to translate the ...

VT Group (VTG)

Sr. Software Developer

Mclean, VA · On-site

$55.25 - $73/hr

VT Group (VTG) is seeking a Sr. Software Developer with a minimum of 10 years' experience to support the full lifecycle development of innovative web, video, and multimedia training products. The ...

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Senior Software Developer information

See Mount Rainier, MD salary details

$15

$62

$88

How much do senior software developer jobs pay per hour?

As of Sep 5, 2026, the average hourly pay for senior software developer in Mount Rainier, MD is $62.32, according to ZipRecruiter salary data. Most workers in this role earn between $52.88 and $69.90 per hour, depending on experience, location, and employer.

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 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 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 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 Mount Rainier, MD?

The most popular types of Software Developer jobs in Mount Rainier, MD are:

What cities near Mount Rainier, MD are hiring for Senior Software Developer jobs?

Cities near Mount Rainier, MD with the most Senior Software Developer job openings:

Senior Software Developer jobs near you
Infographic showing various Senior Software Developer job openings in Mount Rainier, MD as of August 2026, with employment types broken down into 85% Full Time, 10% Part Time, 1% Temporary, and 4% Contract. Highlights an 84% Physical, 4% Hybrid, and 12% Remote job distribution, with an average salary of $129,632 per year, or $62.3 per hour.

Sr. Software Developer

3B Staffing LLC

Washington, DC • On-site

$61.75 - $81.50/hr

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

Sr. Software Developer

Key Responsibilities

  • Frontend Development: Build intuitive and responsive user interfaces with Next.js and other modern tools.
  • Data-Centric Development: Work on data-driven features and services, collaborating with product and data teams to design performant solutions.
  • Cloud Services: Contribute to backend service development and infrastructure improvements across Google Cloud Platform.
  • Security & Scalability: Help design secure, scalable systems that handle sensitive data and high-throughput operations.
  • Collaboration & Mentorship: Engage in peer reviews, provide technical guidance, and contribute to team growth and documentation.

Minimum Responsibilities

  • 6+ years of professional software development experience.
  • Proficiency in React and JavaScript/TypeScript, including best practices and modern patterns.
  • Experience building and maintaining production-grade web applications using Next.js or other modern JavaScript frameworks.
  • Experience building RESTful APIs
  • Hands-on experience with Google Cloud Platform or similar cloud providers and working with cloud infrastructure (e.g., Terraform, GCP services).
  • Proficiency with Python, particularly for scripting, data manipulation, or backend services.
  • Strong understanding of security best practices.
  • Track record of delivering well-tested, maintainable code.

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