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Freelance Senior Software Developer Jobs in Silver Spring, MD

Sr. Software Developer

Mclean, VA ยท 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 ...

Senior Software Developer

Bethesda, MD ยท Hybrid

$90K - $130K/yr

Description Spatial Front, Inc. (SFI), a two-time USAToday Top Workplaces awardee and Washington Top Workplaces honoree, is seeking a Senior Software Developer to support our growing team. In this ...

Senior Software Developer

Bethesda, MD ยท On-site

$90K - $130K/yr

Job Type Full-time Description Spatial Front, Inc. (SFI), a two-time USAToday Top Workplaces awardee and Washington Top Workplaces honoree, is seeking a Senior Software Developer to support our ...

Senior Software Developer

Herndon, VA ยท 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 ...

Senior Software Developer

Chantilly, VA ยท 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 ...

Senior Software Developer

Herndon, VA ยท 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 ...

Senior Software Developer

Washington, DC ยท 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 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 ...

Senior Software Developer

Arlington, VA ยท 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 ...

Senior Software Developer

Arlington, VA ยท On-site

$160K - $170K/yr

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 ...

Sr. Software Developer

Gaithersburg, MD ยท 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 ...

Showing results 41-60

Freelance Senior Software Developer information

See Silver Spring, MD salary details

$15

$63

$90

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

As of Aug 8, 2026, the average hourly pay for freelance senior software developer in Silver Spring, MD is $63.82, according to ZipRecruiter salary data. Most workers in this role earn between $54.18 and $71.59 per hour, depending on experience, location, and employer.

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

To thrive as a Freelance Senior Software Developer, you need advanced programming expertise, a robust portfolio, and significant experience with full software development lifecycles. Strong command of frameworks, version control (like Git), cloud platforms, and potentially certifications such as AWS Certified Developer or Microsoft Certified: Azure Developer are highly valuable. Exceptional communication, time management, and problem-solving abilities help you effectively collaborate with clients and manage multiple projects independently. These skills ensure you deliver high-quality, timely solutions while building a strong professional reputation in a competitive freelance market.

How do freelance senior software developers typically manage client expectations and project timelines?

Freelance Senior Software Developers often juggle multiple clients and projects, which requires clear communication and proactive expectation management. They usually begin by setting detailed project scopes, timelines, and deliverables with clients, then provide regular updates and adjust schedules as needed to accommodate changes or unforeseen challenges. Strong time management skills and transparent reporting help ensure that projects stay on track and that clients remain informed and satisfied throughout the development process.

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

AspectFreelance Senior Software DeveloperFreelance Software Engineer
CredentialsTypically requires extensive experience, advanced coding skills, and sometimes certifications like Microsoft or AWSRequires solid coding skills and experience, often with relevant certifications but generally less senior-level expertise
Work EnvironmentWorks independently or with clients directly, often on complex projects requiring leadershipWorks independently or with teams, focusing on software development tasks across various projects
Industry UsageCommonly used in consulting, freelance platforms, and project-based work requiring senior expertiseWidely used in freelance and contract roles across tech industries for development tasks

The main difference lies in experience level and project complexity. Freelance Senior Software Developers typically handle more complex projects and provide technical leadership, while Freelance Software Engineers focus on coding and development tasks across a range of project types.

What does a freelance senior software developer do?

A Freelance Senior Software Developer designs, develops, and maintains complex software systems for clients or companies on a contract basis. They often work independently, managing multiple projects, collaborating with stakeholders, and ensuring the delivery of high-quality code. Their role may include mentoring junior developers, making architectural decisions, and troubleshooting technical issues. Freelancers have the flexibility to choose their clients and projects, and they are responsible for managing their own workload, deadlines, and business operations.

Senior Software Developer

Joint Research and Development, LLC

Arlington, VA โ€ข On-site

$100K - $180K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 3 days ago


Job description

JRAD is seeking candidates for a Senior Software Developer position responsible for leading the design, development, and delivery of complex software solutions. This role involves providing technical guidance, mentoring junior developers, and ensuring the quality and performance of applications. The Senior Developer collaborates with cross-functional teams to implement solutions aligned with organizational goals and compliance standards. The position is a remote/telework position with frequent on-site meetings at the TSA HQs (Springfield, VA).


Roles/Responsibilities:

  • Lead full-stack development across the software lifecycle – from requirements gathering through design, development, testing, and deployment.
  • Architect and implement scalable, secure, and maintainable software applications using modern frameworks and technologies.
  • Write high-quality, efficient, reusable code in languages such as Java, C#, C++, ASP.Net, Python, JavaScript/TypeScript, or equivalent.
  • Experienced with SQL development.
  • Drive code reviews, enforce coding standards, and mentor mid-level and junior developers.
  • Collaborate with DevOps teams to streamline CI/CD pipelines, infrastructure-as-code, and automated testing processes.
  • Interface with stakeholders to translate business requirements into technical solutions.
  • Ensure applications adhere to accessibility (e.g., Section 508), cybersecurity (e.g., OWASP Top 10, NIST), and performance standards.
  • Troubleshoot complex issues in production environments and lead root cause analysis.
  • Evaluate and integrate new tools, frameworks, and technologies to enhance system performance and development efficiency.
  • Provide support and mentoring to junior developers and database administrators.
  • Experienced in Agile Software Development and familiarity with Agile development tools such as GitHub, Jira, and familiarity with Agile SAFe


Required Skills and Education:

  • Bachelor’s degree in Computer Science, Software Engineering, or related field (Master’s preferred).
  • 5–8+ years of professional software development experience, including leadership or technical lead responsibilities.
  • Java/Spring MVC and Spring Boot experience are highly preferred.
  • Single Sign On (SSO) / session management / complex permissions environments.
  • Deep understanding of object-oriented programming, data structures, and algorithms.
  • Scala/Http4s experience desired.
  • Data engineering skills are also desirable. Specifically “ETL” (extract, transform, load) experience.
  • Experience with frontend technologies (e.g., React, Angular, Vue) and backend platforms (e.g., Node.js, .NET, Spring Boot).
  • Strong experience with relational and NoSQL databases (e.g., SQL Server, PostgreSQL, MongoDB).
  • Familiarity with cloud services (e.g., AWS, Azure, or GCP) and container technologies (Docker, Kubernetes).
  • Proficiency in Git and modern development workflows (Agile/Scrum).
  • Excellent problem-solving skills and the ability to make architectural decisions independently.


Preferred Qualifications:

  • Active Security Clearance (Secret or higher) or the ability to obtain one.
  • Experience working in government, defense, or regulated industries.
  • Certifications such as AWS Certified Solutions Architect, Microsoft Certified: Azure Developer Associate, or Certified Kubernetes Application Developer (CKAD).
  • Familiarity with DevSecOps practices and tools like Terraform, Jenkins, GitLab CI/CD, SonarQube.
  • Experience integrating with REST APIs, GraphQL, and/or message brokers (e.g., RabbitMQ, Kafka).
  • Preference for Tier III help desk experience.
  • Preferred experience working with IBM MQ messaging systems, specifically installation, configuration, and knowledge of cluster based messaging.


Security Clearance:

Candidate must:

  • Be able to pass DHS suitability screening or DHS financial responsibility standards.
  • Have or be eligible to receive a DHS Secret security clearance. Existing Secret Clearance is a plus.


When you work for JRAD you will never be just a number. We put people before profits!


JRAD is committed to the health and well-being of its employees. We offer more paid time off than the average company upon hire and the following benefits are available to all full-time employees:

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Life & Accidental Death and Dismemberment Insurance
  • Section 125 Flexible Spending Accounts for unreimbursed medical & dependent day care
  • Disability Insurance
  • 401K Plan
  • Tuition Reimbursement


JRAD is an equal opportunity employer as to all protected groups, including protected veterans and individuals with disabilities.


The JRAD salary range for this position is a general guideline only and not a guarantee of compensation or salary. There are many factors considered when determining the compensation provided in an offer. These factors include, but are not limited to position responsibilities, education, experience, knowledge, skills, and contract terms and conditions.


PLEASE NOTE: Once you apply, to ensure you continue to receive important updates on your application and status, please add JRAD to your approved email list and/or check your spam and junk mail often for updates.