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Freelance Integration Software Engineer Jobs in Virginia

The Junior Software Engineer contributes to WDP Core Integration software development by implementing assigned features, fixes, and configuration updates across development, test, integration, and ...

Software Integration Engineer

Tysons, VA ยท On-site

$104K - $140K/yr

Software Integration Engineer LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly motivated and detail ...

Software Integration Engineer

Reston, VA ยท On-site

$108K - $145K/yr

Software Integration Engineer LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly motivated and detail ...

Software Integration Engineer

Tysons, VA

$104K - $140K/yr

Software Integration Engineer LOCATIONTysons, VA 22182 CLEARANCETS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARYWe are seeking a highly motivated and detail ...

Software Integration Engineer

Chantilly, VA ยท On-site

$107K - $144K/yr

Software Integration Engineer LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly motivated and ...

Software Integration Engineer

Reston, VA ยท On-site

$108K - $145K/yr

Software Integration Engineer LOCATIONReston, VA 20190 CLEARANCETS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARYWe are seeking a highly motivated and detail ...

Software Integration Engineer

Chantilly, VA ยท On-site

$107K - $144K/yr

Software Integration Engineer LOCATIONChantilly, VA 20151 CLEARANCETS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARYWe are seeking a highly motivated and detail ...

Software Integration Engineer 3

Ashburn, VA ยท On-site

$106K - $143K/yr

TS/SCI w/ Polygraph Software Integration Engineer Level 3 LCAT Description : Provides expertise in integrating, installing, configuring, upgrading, compiling and supporting COTS/GOTS software in a ...

Software Integration Engineer 3

Ashburn, VA ยท On-site

$106K - $143K/yr

TS/SCI w/ Polygraph Software Integration Engineer Level 3 LCAT Description : Provides expertise in integrating, installing, configuring, upgrading, compiling and supporting COTS/GOTS software in a ...

Integration Engineer

Chesapeake, VA ยท On-site

$101K - $136K/yr

Bachelor's degree in Computer Science, Information Technology, Software Engineering, or equivalent practical experience. * Experience: 3-5+ years in systems integration, software development, or ...

Integration Engineer

Chesapeake, VA ยท On-site

$101K - $136K/yr

Experience: 3-5+ years in systems integration, software development, or cloud-native application engineering, ideally supporting retail or consumer-goods environments. * 3+ years' experience in ...

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Freelance Integration Software Engineer information

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

AspectFreelance Integration Software EngineerFreelance Software Developer
Primary FocusDesigning and implementing system integrations and APIsDeveloping standalone applications or features
Required SkillsAPI development, system architecture, integration toolsProgramming languages, application development, UI/UX
Work EnvironmentClient sites, remote, collaborative with IT teamsRemote, independent, project-based
Common CertificationsAPI certifications, cloud platform credentialsProgramming language certifications, software development courses

Freelance Integration Software Engineers focus on connecting different systems and APIs, often working closely with IT teams. Freelance Software Developers create standalone applications or features. While both roles require programming skills, integration engineers emphasize system interoperability, whereas developers focus on application creation.

What are some common challenges a Freelance Integration Software Engineer might face when working with multiple clients?

Freelance Integration Software Engineers often encounter challenges such as managing different client expectations, working with diverse technology stacks, and aligning integration standards across various systems. Since each client may use unique tools and workflows, adaptability and strong communication skills are essential to ensure seamless integration. Additionally, coordinating with remote development teams and adhering to project timelines can be demanding, but these experiences also help build a versatile skill set and professional reputation.

What is a Freelance Integration Software Engineer?

A Freelance Integration Software Engineer is an independent professional who specializes in connecting and combining different software systems so they can work together seamlessly. They are typically hired on a project basis to develop, implement, and maintain integrations between applications, databases, APIs, and other digital services. These engineers ensure data flows smoothly across platforms, streamline business processes, and resolve compatibility issues. Freelancers in this role often work remotely and serve multiple clients across industries.

What are the key skills and qualifications needed to thrive as a Freelance Integration Software Engineer, and why are they important?

To thrive as a Freelance Integration Software Engineer, you need strong programming skills (often in languages like Java, Python, or JavaScript), experience with APIs, and a solid understanding of system integration concepts, typically backed by a degree in computer science or related field. Familiarity with integration platforms (such as MuleSoft, Dell Boomi, or Zapier), cloud services, and relevant certifications (like MuleSoft Certified Developer or AWS Certified Solutions Architect) is highly valuable. Excellent problem-solving, communication, and time-management skills help you collaborate with clients and efficiently deliver solutions in a freelance environment. These capabilities are essential to ensure seamless connectivity between systems, deliver high-quality client solutions, and manage projects independently.
What are the most commonly searched types of Integration Software Engineer jobs in Virginia? The most popular types of Integration Software Engineer jobs in Virginia are:
What are popular job titles related to Freelance Integration Software Engineer jobs in Virginia? For Freelance Integration Software Engineer jobs in Virginia, the most frequently searched job titles are:
What job categories do people searching Freelance Integration Software Engineer jobs in Virginia look for? The top searched job categories for Freelance Integration Software Engineer jobs in Virginia are:
What cities in Virginia are hiring for Freelance Integration Software Engineer jobs? Cities in Virginia with the most Freelance Integration Software Engineer job openings:
Junior Software Engineer

Junior Software Engineer

ECS

Fairfax, VA โ€ข On-site

Full-time

Posted 17 days ago


Job description

Everforth ECS is seeking a Junior Software Engineer to work in the National Capital Region covering the Pentagon, Falls Church, and Fairfax. Please Note: This position is contingent upon contract award.
The War Data Platform (WDP) is a key initiative within the U.S. Department of War's (DoW) AI-First strategy introduced in early 2026. The WDP separates business and financial data from operational warfighting data, aiming to accelerate the deployment of artificial intelligence (AI) on the battlefield. The WDP extends to Unclassified, Secret, and Top Secret environments, and supports collaboration between Combatant Commands, Joint Staff directorates, Senior Executive Service leaders, and operational analysts.
The Junior Software Engineer contributes to WDP Core Integration software development by implementing assigned features, fixes, and configuration updates across development, test, integration, and staging environments spanning NIPRNet, SIPRNet, and JWICS under the guidance of senior software engineers. This is an entry-level role offering meaningful hands-on exposure to full-lifecycle, mission-critical government software engineering within a high-tempo DevSecOps delivery environment where code quality and security compliance directly impact warfighter outcomes.
โ€ข Supports War Data Platform (WDP) Core Integration software development by creating application features, scripts, and configuration updates across development, test, integration, and staging environments operating on NIPRNet, SIPRNet, and JWICS.
โ€ข Writes foundational code using Python, JavaScript, Java, Terraform, Docker, and GitLab workflows to contribute to analytic tools, user interfaces, and automation services.
โ€ข Leads bug-fix activities and minor feature implementation while reviewing requirements, creating simple design sketches, and seeking clarification to validate technical direction.
โ€ข Implements assigned code components, runs existing Infrastructure-as-Code scripts, and applies baseline hardening standards while learning Department of War Security Technical Implementation Guide requirements.
โ€ข Updates Infrastructure-as-Code and Configuration-as-Code modules by modifying templates, variables, and resource definitions used to maintain consistent provisioning.
โ€ข Assists with virtual-machine and container-application hardening by validating configuration baselines, removing prohibited services, and updating image parameters aligned to DoW container-hardening standards.
โ€ข Supports security-scanning workflows by preparing code for static analysis, dependency checks, vulnerability assessments, and compliance validation performed within continuous integration and continuous deployment pipelines.
โ€ข Triggers builds, adds basic unit tests, addresses linting errors under guidance, and executes existing scanning scripts while applying minor corrective changes.
โ€ข Diagnoses coding errors, configuration discrepancies, and pipeline issues through log inspection, debugging tools, and environment consoles.
โ€ข Monitors dashboards, follows runbooks to resolve alerts, and contributes brief documentation such as README updates and code comments.
โ€ข Participates in Agile ceremonies, collaborates with senior engineers, follows story definitions, and delivers well-scoped tasks aligned to mission priorities.
โ€ข Produces structured notes, code revisions, documentation updates, and configuration artifacts that support traceability and maintain alignment with War Data Platform (WDP) Core Integration software-engineering objectives.
โ€ข Performs other duties as assigned.
โ€ข Current Secret security clearance with the ability to obtain and maintain a Top Secret (TS) security clearance with Sensitive Compartmented Information (SCI).
โ€ข 0-3 years of experience in software engineering, application development, or a closely related technical discipline, including relevant academic, internship, capstone project, or personal portfolio experience demonstrating practical coding ability.
โ€ข Foundational proficiency in one or more of the following languages or technologies: Python, JavaScript, or Java, with a basic working awareness of containerization concepts using Docker, version control workflows using Git or GitLab, and Infrastructure-as-Code principles using Terraform or equivalent tooling.