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Freelance Full Stack Developer Jobs in Washington

Leidos

Full Stack Developer

Arlington, VA · On-site

Full stack developers can switch between front-end and back-end development based on requirements and help the team prototype rapidly when needed. This person should be a seasoned, self-motivated ...

Leidos

Full Stack Developer

Arlington, VA · On-site

$107K - $195K/yr

Full stack developers can switch between front-end and back-end development based on requirements and help the team prototype rapidly when needed. This person should be a seasoned, self-motivated ...

Bridge Core (BCore)

Full-stack Developer

Mclean, VA · On-site

Overview Full-stack Developer McLean, VA TS/SCI with Poly At Bcore, our strength comes from how we deliver impact to the mission. Whether it's architecting critical IT solutions, producing actionable ...

Aretec

Full Stack Developer

Camp Springs, MD · On-site

The Full-Stack Developer will join our team providing Insider Threat support in support of our federal client located in Landover, MD. The Full-Stack Developer will be responsible for developing new ...

GRVTY

Full Stack Developer

Chantilly, VA · On-site

$150K - $200K/yr

The Full Stack Software Developer will work with the lead developer to maintain and enhance the existing software application. The Full Stack Developer will help with design and then implement all ...

GRVTY

Full Stack Developer

Chantilly, VA

$150K - $200K/yr

The Full Stack Developer will help with design and then implement all levels of the application: data layer, application code, and user interface. The Full Stack Developer will also work with lead ...

LT Consulting

Full Stack Developer

Chantilly, VA

LT Consulting is seeking a Full Stack Web Developer with an active TS/SCI with polygraph to design and deliver the full scope of web solutions for mission-critical environments. As a Full Stack ...

New

Steampunk

Full Stack Developer

Mclean, VA

$85K - $170K/yr

We are looking for a highly skilled Full-Stack Developer to design, build, and optimize advanced AI solutions across predictive, generative, and autonomous system domains. This role requires strong ...

Steampunk

Full Stack Developer

Mclean, VA · On-site +1

$85K - $170K/yr

The Developer will work across the full stack of AI development, from data ingestion and model experimentation to application integration, orchestration, and deployment, and will collaborate closely ...

M1 Technology LLC

Full Stack Developer

Chantilly, VA · On-site

M1 Technology is seeking a skilled Full Stack Developer to contribute to the design, development, and deployment of cloud-native software solutions. This role requires hands-on experience across the ...

MindSource

Full Stack Developer

Reston, VA · On-site

MindSource is seeking a talented Full Stack Developer with strong hands-on experience in Java, Python, Angular, and AWS cloud. The role involves designing, developing, and maintaining scalable full ...

Steampunk

Full Stack Developer

Mclean, VA · On-site +1

$85K - $170K/yr

The Developer will work across the full stack of AI development, from data ingestion and model experimentation to application integration, orchestration, and deployment, and will collaborate closely ...

inoventures LLC

Senior Full Stack Developer

Mclean, VA · On-site

Role: Senior Full Stack Developer Location: McLean, VA Duration: 18 Months + ROLES: This position supports application development efforts as a Senior Full Stack Developer. As a Senior Full Stack ...

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Freelance Full Stack Developer information

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How much do freelance full stack developer jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for freelance full stack developer in Washington is $67.12, according to ZipRecruiter salary data. Most workers in this role earn between $55.82 and $77.31 per hour, depending on experience, location, and employer.

What is a freelance full stack developer?

A Freelance Full Stack Developer is a self-employed professional who builds both the front-end and back-end of websites or applications. They work with various technologies, including databases, servers, APIs, and client-side interfaces, to create fully functional digital products. Unlike full-time employees, freelancers work on a project basis for multiple clients, offering flexibility in workload and schedule. Their responsibilities often include coding, debugging, deployment, and sometimes design.

What types of projects and clients can freelance full stack developers typically expect to work with?

Freelance Full Stack Developers often engage with a diverse range of projects, including website and web application development, e-commerce platforms, mobile app backends, and API integrations. Clients can range from startups and small businesses to established companies and entrepreneurs seeking bespoke digital solutions. The variety in clients and project scopes allows developers to constantly expand their skills and work experience, but it also means adapting quickly to new industries and client expectations. Freelancers typically manage their own workflow, communicate directly with clients, and are responsible for project timelines, making this role ideal for self-motivated technology professionals.

What are the key skills and qualifications needed to thrive as a freelance full stack developer?

To thrive as a Freelance Full Stack Developer, you need a solid grasp of both front-end and back-end programming languages (such as JavaScript, HTML/CSS, Node.js, Python, or similar) and a strong portfolio showcasing completed projects. Familiarity with frameworks like React or Angular, version control systems like Git, cloud services, and sometimes relevant certifications (such as AWS Certified Developer) are highly valued. Excellent communication, problem-solving abilities, time management, and client relationship skills help set freelancers apart. These competencies are crucial for effectively delivering end-to-end solutions, managing multiple projects, and building a reliable client base.

What are the most commonly searched types of Full Stack Developer jobs in Washington?

The most popular types of Full Stack Developer jobs in Washington are:

What are popular job titles related to Freelance Full Stack Developer jobs in Washington?

For Freelance Full Stack Developer jobs in Washington, the most frequently searched job titles are:

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The top searched job categories for Freelance Full Stack Developer jobs in Washington are:

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Freelance Full Stack Developer jobs near you
Infographic showing various Freelance Full Stack Developer job openings in Washington as of August 2026, with employment types broken down into 55% Full Time, and 45% Contract. Highlights an 85% In-person, and 15% Hybrid job distribution, with an average salary of $139,606 per year, or $67.1 per hour.

Full Stack Developer

Leidos

Arlington, VA • On-site

Full-time

Re-posted 13 days ago

Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 152 frontline employees who took The Breakroom Quiz

79th of 492 rated business services

Job description

Leidos is seeking an experienced Full Stack Developer to support the Compartmented Enterprise Services Office (CESO) program delivering mission-focused software capabilities for DISA. This role develops, tests, and maintains secure, reliable applications across the full technology stack (front-end, APIs/services, and data). Full stack developers can switch between front-end and back-end development based on requirements and help the team prototype rapidly when needed. This person should be a seasoned, self-motivated, and professional with at least 8 years of hands-on engineering and administration experience in virtualized Information Technology environments.
This position is 100% on-site in Arlington, VA. Occasional, situational travel within the DC-Metro area may be required.
PRIMARY RESPONSIBILITIES
  • Design, develop, test, and maintain full-stack applications (UI, service/API layer, and data access layer) in an Agile delivery environment.
  • Participate in software programming initiatives to support innovation and enhancement, using Java, JavaScript, Python, SpringBoot,
  • Implement responsive, user-friendly front-end features and collaborate with UX/design to ensure usable, accessible experiences.
  • Build and maintain back-end services and APIs; implement business logic, integrations, and data access patterns.
  • Develop, maintain, and evolve a modernized database architecture aligned to modernization initiatives, including cloud adoption.
  • Create and optimize database queries and data models; ensure data integrity and performance.
  • Write automated tests and participate in code reviews to improve quality, security, and maintainability.
  • Troubleshoot, debug, and resolve defects across the stack; support production and lower-environment issue resolution as required.
  • Produce technical documentation (design notes, API documentation, and operational runbooks) aligned to program needs.
  • Operate and improve reliability/availability through monitoring, alerting, incident response, and continual service improvement.
  • Produce and maintain technical documentation (build guides, runbooks, diagrams, and operational procedures).
  • Stage new and upgraded services components or services to integration and testing environment.
  • Develop and engineer improvements to the infrastructure and architecture to support continuous development and continuous integration utilizing modern practices and tools.
  • Support and perform deployment orchestration, automation, and security configuration management (i.e., CloudFormation, Terraform, Ansible, GitLab, Bitbucket).
  • Maintain documentation of code developed in support of CESO environments.
  • Support patching, logging, vulnerability scanning, and compliance tracking.
  • Participate in the release management process.
  • Participate in Agile ceremonies (daily stand-ups, sprint planning, retrospectives) and Jira-based task tracking.

BASIC QUALIFICATIONS
  • Candidate must currently have a TS and SCI eligible with the ability to obtain and maintain a CI Poly.
  • BA/BS and 8 years minimum of experience in Information Technology.
  • Demonstrated experience developing and supporting applications across the full stack (front-end + back-end + database).
  • Experience with modern front-end fundamentals (HTML/CSS/JavaScript) and building responsive user experiences.
  • Experience with back-end development concepts such as APIs, server-side logic, and database interaction.
  • Hands-on technical experience in at least three of the following areas: Oracle, SQL Server, Java, engineered systems, cloud technologies, data integration, automated testing and deployments, and DevSecOps.
  • Strong background in automated testing, CI/CD, and modern software delivery practices.
  • Experience with software development languages/environments such as: JavaScript, GitLab, Jenkins, Ansible Automation, Java, PSSQL, YAML, and Terraform.
  • Ability to work effectively with cross-functional teammates and contribute across the full development lifecycle.
  • 4 years' experience with tools to include Ansible, Terraform, JMETER, EC2, ELB, RDS, Lambda, Docker.
  • Experience with deployment orchestration, automation, and security configuration management (i.e., CloudFormation, Terraform, Ansible, GitLab, Bitbucket)

PREFERRED QUALIFICATIONS
  • Prior experience with DISA and DISA's support to mission partners.

ABOUT OUR PROGRAM:
With the CESO effort, the Defense Information System Agency (DISA) is looking to transform the existing Secure Web Services (SWS) environment, used to provide secure information sharing to the community, into a more mature service offering to meet the DoD and IC community. The program will support an automated platform capable of supporting a rapidly expanding customer population.
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:
June 8, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $107,900.00 - $195,050.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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