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Freelance Senior Software Developer Jobs in Silver Spring, MD

ECS

Senior Software Developer

Washington, DC · On-site

$60.25 - $79.50/hr

Everforth ECS Federal is seeking a Senior Software Developer to support a mission-focused federal IT program in Washington DC . Please Note: This position is contingent upon contract award. Join ...

VivSoft Technologies

Senior Software Developer

Herndon, VA · Remote

$55.75 - $73.75/hr

Senior Software Developer Location: Remote, USA Position Type: Full-Time About the company: At VivSoft, we aim to solve complex federal problems using emerging and open technologies in a ...

WITS, LLC

Senior Software Developer

Fort George G Meade, MD · On-site

$60.75 - $80.25/hr

Salary: 200-220k WITS is seeking a Senior Software Developer with mid-tier, backend, and some frontend experience. The candidate must be able to work with a small team of developers with similar ...

WITS, LLC

Senior Software Developer

Fort George G Meade, MD

$60.75 - $80.25/hr

Salary: 200-220k WITS is seeking a Senior Software Developer with mid-tier, backend, and some frontend experience. The candidate must be able to work with a small team of developers with similar ...

Hirekeyz Inc

Senior Software Developer

Fairfax, VA · On-site

$55.75 - $73.50/hr

Role: Senior Software Developer Location: Onsite- Fairfax, VA 3 Days and in Washington, DC 2 Days per Week. Duration: Long Term Contract Position Require a Secret Clearance The Senior Software ...

Beyond SOF

Senior Software Developer

Linthicum Heights, MD · On-site

$53.50 - $70.50/hr

The Senior Software Developer will join a multi-disciplinary team of subject matter experts supporting the U.S. Air Force Cyber Capabilities Support Office and U.S. Cyber Command Cyber Mission Forces.

Beyond SOF

Senior Software Developer

Linthicum, MD · On-site

$53.50 - $70.50/hr

The Senior Software Developer will join a multi-disciplinary team of subject matter experts supporting the U.S. Air Force Cyber Capabilities Support Office and U.S. Cyber Command Cyber Mission Forces.

ELEVI Associates

Sr Software Developer

Annapolis Junction, MD · On-site

$55.75 - $73.50/hr

ELEVI Associates is seeking a Sr Software Developer with extensive experience in software engineering. The role involves supporting the modernization of malware analysis, developing techniques for ...

VTG

Senior Software Developer

Hanover, MD · On-site

$54.25 - $71.75/hr

Overview Triaplex, Inc. (A wholly owned subsidiary of VTG) is looking for an Senior Software Developer to join our team. This position will support a mission-focused customer developing, deploying ...

ELEVI Associates

Sr Software Developer

Annapolis Junction, MD · On-site

$55.75 - $73.50/hr

ELEVI Associates is seeking a Senior Software Developer to join their Software Development & Engineering team. The role involves supporting the modernization of malware analysis and developing ...

Black Canyon Consulting

Senior Software Developer

Bethesda, MD · On-site +1

$58.25 - $77/hr

Overview Black Canyon Consulting (BCC) is searching for a Senior Software Developer to support the National Center for Biotechnology Information (NCBI) . This opportunity is full time and onsite at ...

VTG

Senior Software Developer

Hanover, MD

$54.25 - $71.75/hr

Overview Triaplex, Inc. (A wholly owned subsidiary of VTG) is looking for an Senior Software Developer to join our team. This position will support a mission-focused customer developing, deploying ...

Black Canyon Consulting

Senior Software Developer

Bethesda, MD · On-site

$58.25 - $77/hr

Overview Black Canyon Consulting (BCC) is searching for a Senior Software Developer to support the National Center for Biotechnology Information (NCBI) . This opportunity is full time and onsite at ...

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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 Jun 27, 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, and why are they important?

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.
Freelance Senior Software Developer jobs near you
Senior Software Developer

Senior Software Developer

ECS

Washington, DC • On-site

$60.25 - $79.50/hr

Full-time

Posted 16 days ago

Job description

Everforth ECS Federal is seeking a Senior Software Developer to support a mission-focused federal IT program in Washington DC.
Please Note: This position is contingent upon contract award.
Join Everforth ECS Federal to build and modernize applications that support key federal law enforcement and national security missions. You will work in a collaborative environment where secure software delivery has direct mission impact and where modern development practices help strengthen mission performance, usability, and operational effectiveness.
The Senior Software Developer will develop, test, secure, integrate, and maintain enterprise applications using modern programming languages, frameworks, APIs, and CI/CD practices. This role provides senior-level application development support for mission systems operating in secure federal environments.
The Senior Software Developer will design, code, test, debug, integrate APIs, support CI/CD pipelines, perform code reviews, resolve production issues, and apply secure coding practices throughout the software development lifecycle. This position will work closely with product owners, business analysts, QA engineers, cybersecurity teams, DevSecOps personnel, and customer stakeholders to deliver reliable, secure, and mission-aligned software solutions.
This role requires a hands-on senior technical professional with experience developing enterprise applications, supporting Agile or DevSecOps delivery, troubleshooting application issues, and maintaining secure, high-quality code. The ideal candidate will bring strong problem-solving skills, technical judgment, documentation discipline, and the ability to collaborate across technical and mission teams in a classified or sensitive federal IT environment.
  • Minimum 7 years software development experience
  • Java, .NET, Python, JavaScript, or similar experience
  • Experience with source control and software lifecycle practices.

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