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Freelance Remote Java Backend Developer Jobs in Ashburn, VA

System One

Java Developer

Mclean, VA · Remote

$52.25 - $67.50/hr

Java Full Stack Developer 100% Remote Sponsorship is not available for this position. Candidates ... Develop responsive user interfaces and scalable backend services that support business processes ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Hybrid -- Reston, VA (20190) (90% remote - 4 to 6 onsite meetings a year) Type: Contract Schedule ... Pure backend candidates won't be a fit: the team needs engineers who can flex across the stack as ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Hybrid -- Reston, VA (20190) (90% remote - 4 to 6 onsite meetings a year) Type: Contract Schedule ... Pure backend candidates won't be a fit: the team needs engineers who can flex across the stack as ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Hybrid -- Reston, VA (20190) (90% remote - 4 to 6 onsite meetings a year) Type: Contract Schedule ... Pure backend candidates won't be a fit: the team needs engineers who can flex across the stack as ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Hybrid -- Reston, VA (20190) (90% remote - 4 to 6 onsite meetings a year) Type: Contract Schedule ... Pure backend candidates won't be a fit: the team needs engineers who can flex across the stack as ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Hybrid -- Reston, VA (20190) (90% remote - 4 to 6 onsite meetings a year) Type: Contract Schedule ... Pure backend candidates won't be a fit: the team needs engineers who can flex across the stack as ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Hybrid -- Reston, VA (20190) (90% remote - 4 to 6 onsite meetings a year) Type: Contract Schedule ... Pure backend candidates won't be a fit: the team needs engineers who can flex across the stack as ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Hybrid -- Reston, VA (20190) (90% remote - 4 to 6 onsite meetings a year) Type: Contract Schedule ... Pure backend candidates won't be a fit: the team needs engineers who can flex across the stack as ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Hybrid -- Reston, VA (20190) (90% remote - 4 to 6 onsite meetings a year) Type: Contract Schedule ... Pure backend candidates won't be a fit: the team needs engineers who can flex across the stack as ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Hybrid -- Reston, VA (20190) (90% remote - 4 to 6 onsite meetings a year) Type: Contract Schedule ... Pure backend candidates won't be a fit: the team needs engineers who can flex across the stack as ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Hybrid -- Reston, VA (20190) (90% remote - 4 to 6 onsite meetings a year) Type: Contract Schedule ... Pure backend candidates won't be a fit: the team needs engineers who can flex across the stack as ...

Data Society

Sr. Backend Engineer

Washington, DC · On-site +1

This role is work-from-home (remote) - though if you are local to the client offices (Falls Church ... Proficiency with Azure DevOps CI/CD pipelines and security-gated build processes (Veracode or ...

Maximus

Senior SW Eng Manager - Java / Spring / Spring Boot

VA · On-site +1

$57.50 - $73.25/hr

... City Remote Country United States Working time Full-time Description & Requirements Maximus is ... Engineer. We are looking for a Development Manager to lead a team supporting enterprise backend ...

System One

Java Developer - 100% REMOTE

Vienna, VA · Remote

$52.25 - $67.50/hr

Java Developer Location: MUST BE LOCAL TO VIENNA, VA or WINCHESTER, VA or PENSACOLA, FL FOR FACE TO FACE INTERVIEW, THEN 100% REMOTE Type: Contract Compensation: Negotiable, W-2 or C2C ...

System One

Java Developer - 100% REMOTE

Vienna, VA · Remote

$52.25 - $67.50/hr

Java Developer Location: MUST BE LOCAL TO VIENNA, VA or WINCHESTER, VA or PENSACOLA, FL FOR FACE TO FACE INTERVIEW, THEN 100% REMOTE Type: Contract Compensation: Negotiable, W-2 or C2C ...

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Freelance Remote Java Backend Developer information

See Ashburn, VA salary details

$10

$55

$74

How much do freelance remote java backend developer jobs pay per hour?

As of Sep 15, 2026, the average hourly pay for freelance remote java backend developer in Ashburn, VA is $55.87, according to ZipRecruiter salary data. Most workers in this role earn between $49.66 and $64.42 per hour, depending on experience, location, and employer.

What does a freelance remote Java backend developer do?

A Freelance Remote Java Backend Developer is a software professional who specializes in building and maintaining the server-side logic, databases, and APIs for web or mobile applications, primarily using the Java programming language. Working remotely, they collaborate with clients or teams from different locations to deliver backend solutions that ensure the application's performance, scalability, and security. Their responsibilities often include designing and implementing RESTful APIs, integrating with third-party services, fixing bugs, and optimizing backend processes. As freelancers, they typically manage their own schedules and work with multiple clients or projects.

What are the key skills and qualifications needed to thrive as a freelance remote Java backend developer?

To thrive as a Freelance Remote Java Backend Developer, you need strong proficiency in Java, backend frameworks (such as Spring Boot), API development, and a solid understanding of databases, often supported by a degree in computer science or equivalent experience. Familiarity with tools like Git, Docker, cloud platforms (AWS, Azure), and CI/CD pipelines is typically required, and relevant certifications can be advantageous. Excellent problem-solving abilities, clear communication, and self-motivation help you deliver high-quality solutions and collaborate effectively with clients or distributed teams. These skills and qualities are crucial for delivering robust, scalable backend systems efficiently and maintaining client satisfaction in a remote freelance environment.

What are some common challenges faced by freelance remote Java backend developers, and how can they be addressed?

Freelance remote Java backend developers often encounter challenges such as managing communication across time zones, maintaining consistent code quality, and integrating smoothly with distributed teams. To address these, it’s important to establish clear communication channels, use collaboration tools like Slack or Jira, and adhere to standardized coding and documentation practices. Regularly syncing with the client and proactively sharing updates can help ensure alignment and reduce misunderstandings.

What are popular job titles related to Freelance Remote Java Backend Developer jobs in Ashburn, VA?

For Freelance Remote Java Backend Developer jobs in Ashburn, VA, the most frequently searched job titles are:

What job categories do people searching Freelance Remote Java Backend Developer jobs in Ashburn, VA look for?

The top searched job categories for Freelance Remote Java Backend Developer jobs in Ashburn, VA are:

What cities near Ashburn, VA are hiring for Freelance Remote Java Backend Developer jobs?

Cities near Ashburn, VA with the most Freelance Remote Java Backend Developer job openings:

Infographic showing various Freelance Remote Java Backend Developer job openings in Ashburn, VA as of September 2026, with employment types broken down into 49% Full Time, and 51% Contract. Highlights an 100% Remote job distribution, with an average salary of $116,200 per year, or $55.9 per hour.

Java Developer

Mclean, VA • Remote

System One
Business Consulting Services • 5 - 10K employees
Learn more about System Oneexternal

$52.25 - $67.50/hr

Other

Medical, Dental, Vision, Life, Retirement

Posted 19 days ago

Job description

Java Full Stack Developer

100% Remote Sponsorship is not available for this position. Candidates must be able to obtain a Public Trust.

What You Will Do

Join an exciting and meaningful program supported by a collaborative team of more than 200 professionals with diverse backgrounds and experiences. As a Java Full Stack Developer, you will contribute to the development of secure, scalable, and user focused enterprise applications using Java, Spring Boot, ReactJS, RESTful APIs, microservices, relational databases, and AWS cloud technologies. You will work closely with architects, developers, DevOps engineers, Product Owners, business analysts, QA engineers, and other stakeholders to deliver mission critical solutions that support application modernization and business operations. This role emphasizes strong software engineering fundamentals, full stack application development, collaboration, continuous learning, and the delivery of high quality solutions in an Agile environment. You will also have opportunities to use AI assisted development tools to improve code quality, testing, troubleshooting, documentation, and engineering productivity while following security, compliance, data privacy, and Responsible AI standards. Key responsibilities include: • Design, develop, test, deploy, and maintain full stack enterprise applications using Java, Spring Boot, ReactJS, REST APIs, and microservices architectures. • Develop responsive user interfaces and scalable backend services that support business processes, system integrations, and mission critical operations. • Collaborate with architects, developers, business analysts, QA engineers, Product Owners, and stakeholders to translate business requirements into secure, scalable, and maintainable technical solutions. • Develop, optimize, and support database schemas, SQL queries, data access layers, and integrations using relational databases such as Oracle and PostgreSQL. • Troubleshoot and resolve application defects, performance bottlenecks, integration issues, and production incidents across the application stack. • Participate in all phases of the Software Development Life Cycle, including analysis, design, development, testing, deployment, and operational support. • Support cloud deployments, application releases, CI/CD pipelines, DevSecOps initiatives, and automated testing practices. • Create and maintain technical documentation, including solution designs, API specifications, deployment procedures, and operational support guides. • Participate in Agile ceremonies, including sprint planning, backlog refinement, daily standups, sprint reviews, and retrospectives. • Use AI assisted development tools and emerging technologies to improve software quality, engineering productivity, testing, troubleshooting, documentation, and delivery outcomes.

What You Will Need

• Bachelor’s degree in Computer Science, Information Systems, Engineering, Mathematics, or a related technical discipline. An equivalent combination of education and professional experience may be considered. • At least two years of professional software development experience involving both frontend and backend application development. • Hands-on experience with Java 8 or newer, Spring Framework, Spring Boot, Hibernate, Maven, REST APIs, JSON, microservices architecture, and object oriented design principles. • Experience designing, developing, testing, deploying, and supporting scalable, secure, and maintainable enterprise applications throughout the Software Development Life Cycle. • Proficiency with ReactJS, including React Hooks, Redux, React Router, component lifecycle management, state management, and modern frontend development practices. • Strong JavaScript skills, including DOM manipulation and asynchronous programming. • Experience working with relational databases such as Oracle, PostgreSQL, MySQL, or SQL Server. • Experience with schema design, data modeling, normalization, SQL development, and query optimization. • Experience developing and consuming RESTful web services and integrating applications with internal and external systems. • Experience with AWS cloud services, cloud native application development, containerized environments, and modern software deployment practices. • Experience using source control, CI/CD, and software lifecycle management tools such as Git, GitHub, GitLab, Bitbucket, Azure DevOps, Jenkins, or similar platforms. • Experience working in Agile or Scrum environments and collaborating with cross functional teams. • Strong analytical, critical thinking, troubleshooting, and problem solving skills. • Ability to obtain and maintain a Public Trust. • Sponsorship is not available for this position.

Preferred Qualifications

• Experience with Docker, Kubernetes, Terraform, or other Infrastructure as Code technologies. • Knowledge of DevSecOps, automated testing frameworks, application performance monitoring, logging, and observability tools. • Hands-on experience using AI powered software engineering tools such as GitHub Copilot, Amazon Q Developer, Cursor, Claude, Gemini, or similar platforms. • Experience using AI assisted tools to improve development productivity, code quality, testing, troubleshooting, or technical documentation. • Experience supporting federal, healthcare, financial services, or other highly regulated environments. • AWS, Java, Spring, Kubernetes, Scrum, or other cloud related certifications. • Experience developing AI enabled applications or integrating large language models, retrieval augmented generation solutions, AI agents, conversational AI, or intelligent automation capabilities. • Understanding of Responsible AI, AI governance, cybersecurity, data privacy, secure coding practices, and the appropriate use of AI technologies in enterprise or government environments.

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.

#M1 #LI-CS1 Ref: #851-Rockville-S1

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About System One

Sourced by ZipRecruiter

System One helps employers get work done more efficiently and economically without compromising quality. Over our 35+ year history, we've helped connect thousands of talented people with innovative companies. The excitement of a perfect fit motivates us every single day.

Industry

Business consulting services and recruiting and staffing services

Company size

5,001 - 10,000 Employees

Headquarters location

Pittsburgh, PA, US

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