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Freelance Java Backend Developer Jobs in Ashburn, VA

Chenega MIOS

Mid Backend Developer

Vienna, VA · On-site

Req ID: 40539 Summary Mid Backend Developer Vienna, VA Are you ready to enhance your skills and ... Python * JavaScript / Node.js * Java (for enterprise integrations and services) * Experience ...

Chenega Corporation

Mid Backend Developer

Vienna, VA · On-site

Python * JavaScript / Node.js * Java (for enterprise integrations and services) * Experience ... backend software engineer or equivalent practical experience * Hands-on experience developing ...

Chenega MIOS

Jr. Backend Developer

Vienna, VA · On-site

Req ID: 40540 Summary Jr. Backend Developer Vienna, VA Are you ready to enhance your skills and ... Python * JavaScript / Node.js * Java (for enterprise integrations and services) * Experience ...

Chenega Corporation

Jr. Backend Developer

Vienna, VA · On-site

Python * JavaScript / Node.js * Java (for enterprise integrations and services) * Experience ... backend software engineer or equivalent practical experience * Hands-on experience developing ...

Cliff Services Inc

Java Developer

Mclean, VA · On-site

$52.25 - $67.75/hr

The ideal candidate is a hands-on backend developer with 8+ years of strong Java development experience and a proven track record of delivering scalable, enterprise-grade applications in a fast-paced ...

search-tactics

Backend Java Developer

Ashburn, VA · On-site

$51.75 - $67/hr

Backend Java Developer * Location: Ashburn, VA (Hybrid - 2 Days Onsite per Week) * Employment Type: Full-Time, W2 Company: Ailum Technologies Work Authorization: * U.S. Citizenship required * Must be ...

Jobsbridge

Senior Java Developer

Washington, DC · On-site

$64.75 - $82.75/hr

Ability to work closely with business users, other developers and QA. Capable of multi-tasking and ... Qualifications RAPTOR (WPF/C# UI & Java backend),SQL,QA. Additional Information Multiple Openings ...

BTree Solutions, Inc.

FULLSTACK JAVA DEVELOPER

Mclean, VA · On-site

$53.50 - $69/hr

JAVA FULLSTACK DEVELOPER Location: Mclean,VA Duration: 12+ Months Visa: USC, GC, H1B and EAD ... Angular front end. Java backend springboot. Testing focus important for some of the work, automated ...

Booz Allen Hamilton, Inc.

Back End Developer

Mclean, VA · On-site

$86K - $198K/yr

As a software engineer, you know that good software is more than just a nice-looking interface and ... Experience using Java to build enterprise products and applications * Experience with back-end ...

Macro Solutions

Java Kafka Developer (Hybrid)

Ashburn, VA · Hybrid

$52.25 - $67.50/hr

Java Kafka Developer - Full-Time Ashburn, VA (Hybrid - 1 to 2 days onsite / 3 to 4 days remote ... This role focuses on backend development within an event-driven, microservices architecture ...

Booz Allen Hamilton, Inc.

Back End Developer

Mclean, VA · On-site

$86K - $198K/yr

Back End Developer The Opportunity: As a software engineer, you know that good software is more ... Experience using Java to build enterprise products and applications * Experience with back-end ...

Booz Allen Hamilton

Back End Developer

Mclean, VA · On-site

$86K - $198K/yr

As a software engineer, you know that good software is more than just a nice-looking interface and ... Experience using Java to build enterprise products and applications * Experience with back-end ...

Booz Allen Hamilton

Back End Developer

Mclean, VA · On-site

$86K - $198K/yr

Back End Developer The Opportunity: As a software engineer, you know that good software is more ... Experience using Java to build enterprise products and applications * Experience with back-end ...

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

As of Jul 13, 2026, the average hourly pay for freelance 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 are the most commonly searched types of Java Backend Developer jobs in Ashburn, VA? The most popular types of Java Backend Developer jobs in Ashburn, VA are:
Freelance Java Backend Developer jobs near you
Mid Backend Developer

Mid Backend Developer

Chenega MIOS

Vienna, VA • On-site

Other

Posted yesterday

Job description

Req ID: 40539
Summary
Mid Backend Developer
Vienna, VA
Are you ready to enhance your skills and build your career in a rapidly evolving business climate? Are you looking for a career where professional development is embedded in your employers core culture? If so, Chenega Military, Intelligence & Operations Support (MIOS) could be the place for you! Join our team of professionals who support large-scale government operations by leveraging cutting-edge technology and take your career to the next level!
Chenega Agile Real-Time Solutions (CARS) was created with the purpose of providing integrated enterprise IT support to Federal customers both CONUS and OCONUS. CARS employs Subject Matter Experts (SMEs) with decades of experience working in the Federal marketplace.
As a Mid Backend Developer on our team, you will build software leveraging Esris products and APIs to build core backend services that solve complex problems at a global scale. From building intuitive AI web interfaces to writing Python for geoprocessing tools and AI agents, youll be exposed to the full development lifecycle and cutting-edge GIS solutions.
Responsibilities
  • Build backend services that power geospatial processing, automation, and user-facing capabilities
  • Develop APIs, proxies, and integration services using Node.js and Python
  • Create and maintain backend tooling that extends ArcGIS Enterprise in containerized environments
  • Develop and maintain geoprocessing services, automation scripts, and operational workflows
  • Build connectors and ingestion pipelines across diverse enterprise data sources
  • Support deployments across cloud-native and on-prem environments
  • Improve reliability and performance through API design, testing, monitoring, and observability
  • Collaborate with the platform, DevOps, and GIS teams to translate requirements into
  • production solutions
  • Other duties as assigned

Qualifications
  • Bachelors degree in computer science, engineering, GIS, or related technical field (or equivalent practical experience)
  • 3+ years of industry experience as a backend software engineer or equivalent practical experience
  • Hands-on experience developing backend services using:
  • Python
  • JavaScript / Node.js
  • Java (for enterprise integrations and services)
  • Experience designing and building REST APIs and service-based architectures
  • Experience extending or integrating with ArcGIS Enterprise or similar enterprise geospatial platforms
  • Experience working in containerized environments (Docker, Kubernetes, or similar)
  • Active or Current (within two years of active) Top Secret Security Clearance with SCI eligibility

Preferred Qualifications:
  • Masters in computer science, Mathematics, Geographic Information Systems (GIS), or STEM-related field
  • Esri certification
  • CompTIA Security + certification
  • Experience with containerization technologies such as Docker and Kubernetes
  • Familiarity with cloud platforms (Azure, AWS, or Google Cloud Platform)
  • Experience with monitoring, logging, and observability tools
  • Exposure to DevSecOps practices and secure development pipelines
  • Experience with ArcGIS Enterprise SDKs, automation frameworks, or platform extensions
  • Experience building services for geospatial analysis, data pipelines, or map services
  • Familiarity with enterprise authentication, proxies, and secure service architectures
  • Experience with relational and spatial databases (PostgreSQL/PostGIS, SQL Server, etc.)
  • Exposure to event-driven architectures, batch processing, or distributed data workflows

Knowledge, Skills, and Abilities:
  • Ability to work independently and yet be effective within a team setting
  • Must be capable of managing multiple efforts with time-related constraints in a fast-paced contracting environment
  • Demonstrated ability to effectively communicate and collaborate with diverse internal and external stakeholder groups and individuals
  • Friendly presence, helpful attitude, good interpersonal skills, and ability to work well with others.
  • Excellent skills in Microsoft Word, Excel, and other Office applications
  • Proficient with Microsoft Office Applications, and experience working in a home office setting, as well as the ability to train end users on frequently asked technical issues.
  • Ability to provide technical assistance and support over the phone; good phone skills, professional demeanor, and previous customer service experience strongly desired.
  • Good problem-solving skills; ability to visualize a problem/situation and think abstractly to solve it
  • Familiarity with:
  • Geoprocessing workflows
  • Proxies and middleware services
  • Automation of GIS or data processing tasks
  • Solid fundamentals in:
  • API design
  • Software/system design
  • Testing and debugging distributed services
  • Strong problem-solving, communication, and collaboration skills

How youll grow
At Chenega MIOS, our professional development plan focuses on helping our team members at every level of their careers to identify and use their strengths to do their best work every day. From entry-level employees to senior leaders, we believe theres always room to learn.
We offer opportunities to help sharpen skills in addition to hands-on experience in the global, fast-changing business world. From on-the-job learning experiences to formal development programs, our professionals have a variety of opportunities to continue to grow throughout their careers.
Benefits
At Chenega MIOS, we know that great people make a great organization. We value our team members and offer them a broad range of benefits.
Learn more about what working at Chenega MIOS can mean for you.
Chenega MIOSs culture
Our positive and supportive culture encourages our team members to do their best work every day. We celebrate individuals by recognizing their uniqueness and offering them the flexibility to make daily choices that can help them be healthy, centered, confident, and aware. We offer well-being programs and continuously look for new ways to maintain a culture where we excel and lead healthy, happy lives.
Corporate citizenship
Chenega MIOS is led by a purpose to make an impact that matters. This purpose defines who we are and extends to relationships with our clients, our team members, and our communities. We believe that business has the power to inspire and transform. We focus on education, giving, skill-based volunteerism, and leadership to help drive positive social impact in our communities.
Learn more about Chenegas impact on the world.
Chenega MIOS News- ;br>
Tips from your Talent Acquisition Team
We want job seekers exploring opportunities at Chenega MIOS to feel prepared and confident. To help you with your research, we suggest you review the following links:
Chenega MIOS web site - ;br>
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LinkedIn - ;br>
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#Chenega Agile Real Time Solutions, LLC
Estimated Salary/Wage
USD $144,800.00/Yr. Up to USD $175,000.00/Yr.
Chenega Corporation and family of companies is an EOE.
Equal Opportunity Employer/Veterans/Disabled
Native preference under PL 93-638.
We participate in the E-Verify Employment Verification Program

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