Top 257 Front end developer Jobs in Leesburg Va

UI/UX Developer
System One —McLean, VA
- System design
- Master's degree
- Bachelor's degree
- Health insurance
- Dental insurance
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5d
Entry Level React Developer
Antra, Inc —Sterling, VA
- $65,000 - $70,000 a year
- Full-time
- Computer Science
- Analysis skills
- JavaScript
- Relocation assistance
- Health insurance
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Junior Developer
Marstudio —Rockville, MD
- Entry level
- HTML
Associate Software Engineer, Frontend
Takt —Reston, VA
- $70,000 - $90,000 a year
- Full-time
- Hybrid work
- Computer Science
- Office
- Bachelor's degree
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14d
Junior WordPress Developer
Marstudio —Rockville, MD
- Entry level
ReactJS Developer
Intellibus —Reston, VA
- Computer science
- Computer Science
- Bachelor's degree
Android Software Engineer - AI Trainer
DataAnnotation —Ashburn, VA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
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Senior UI/UX Engineer
Leidos —Gaithersburg, MD
- $107,900 - $195,050 a year
- Full-time
- 6 years
- Computer Science
- Office
Android Developer - AI Trainer
DataAnnotation —McLean, VA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
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Senior UI/UX Engineer
Leidos —Chantilly, VA
- $107,900 - $195,050 a year
- Full-time
- 6 years
- Computer Science
- Office
Front End Software Engineer - TS/SCI with Polygraph
General Dynamics Information Technology —Chantilly, VA
- $162,037 - $219,227 a year
- Computer Science
- Office
- 8 years
- Paid holidays
- 401(k) matching
.NET Developer
Gridiron IT Solutions LLC —Chantilly, VA
- $160,000 - $180,000 a year
- Full-time
- 7 years
- Computer Science
- Research
- Health savings account
- AD&D insurance
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Software Engineer - TS/SCI with Polygraph
General Dynamics Information Technology —Chantilly, VA
- $186,787 - $252,713 a year
- Computer Science
- Office
- Windows
- Paid holidays
- 401(k) matching
SharePoint Developer - TS/SCI with Polygraph
General Dynamics Information Technology —McLean, VA
- $163,200 - $220,800 a year
- Computer Science
- Schematics
- Travel
- Paid holidays
- 401(k) matching
SharePoint Developer - TS/SCI with Polygraph
General Dynamics Information Technology —McLean, VA
- $162,037 - $219,227 a year
- Computer Science
- Office
- Travel
- Paid holidays
- 401(k) matching
Front End Software Engineer - TS/SCI with Polygraph
General Dynamics Information Technology —Chantilly, VA
- $186,542 - $252,379 a year
- Computer Science
- Office
- SQL
- Paid holidays
- 401(k) matching
Mobile Developer
System One —Merrifield, VA
- Contract
- Computer science
- Computer Science
- Analysis skills
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Mid-Level UI/UX Developer
Leidos —Gaithersburg, MD
- $87,100 - $157,450 a year
- Full-time
- Computer Science
- Mid-level
- Master's degree
10d
Web Developer
Marstudio —Rockville, MD
- Mid-level
- HTML
Front-end developer
Electronic Team —Reston, VA
- Mid-level
- Health insurance
- Opportunities for advancement

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front end developer jobs near leesburg va

UI/UX Developer

System One -
McLean, VA

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Job Details

Temp-to-hire
5 days ago

Benefits

Health insurance
Dental insurance
401(k)
Vision insurance
Life insurance

Qualifications

AI models
Responsive design
Software engineering
Tooling
Front-end state management
Generative models
Application deployment
Public Cloud
AI platforms (beyond public GPTs)
Machine intelligence
Bachelor's degree
Model deployment
WCAG
Web applications
System deployment
UI implementation
Front-end component implementation
Back-end integration
Accessibility in interaction design
AI-driven automation
TypeScript
Developer tools
Python

Full Job Description

Job Title: UI/UX Developer
Location: McLean, VA – can work Offsite
Type: Contract To Hire
Compensation: Not specified
Work Model: REMOTE

Critical Competencies

A critical competency for this role is the ability to leverage agentic AI development tools (such as Claude Code, Antigravity, Kiro, or similar platforms) to accelerate coding workflows, debug complex issues, and streamline the software development lifecycle.
Candidates must possess foundational AI knowledge and practical experience integrating AI/ML capabilities into applications.
Experience with AWS services is required to effectively connect intelligent backend models with user-friendly frontend experiences that enhance operational effectiveness.

Responsibilities

Design, develop, and deploy scalable, highly responsive user interfaces using ReactJS, JavaScript, and TypeScript.
Implement modern, accessible, and maintainable UI components and styling using Tailwind CSS, shadcn, Radix UI, or similar component libraries.
Utilize Vite for frontend tooling, application builds, and optimized bundling.
Collaborate with backend developers to integrate Python-based RESTful APIs and machine learning models into frontend applications.
Leverage agentic AI development tools to improve development velocity, code quality, testing, debugging, and deployment processes.
Deploy and manage frontend applications using AWS services including S3, CloudFront, API Gateway, and related technologies.
Partner with cross-functional teams to integrate AI capabilities, including chatbots, Retrieval-Augmented Generation (RAG) interfaces, intelligent search, and conversational experiences.
Contribute to software architecture and technical design decisions to ensure applications are scalable, secure, reliable, and performant.
Rapidly prototype UI/UX concepts and iterate on solutions supporting mission-critical challenges such as data triage, operational decision-making, and automated discovery.

Required Qualifications

Bachelor's degree required.
Minimum of five (5) years of hands-on software engineering experience with a focus on frontend development. A Master's degree or applicable industry certification may substitute for up to two years of experience.
Demonstrated experience developing Section 508-compliant and accessible user interfaces, including strong knowledge of WCAG 2.1/2.2 guidelines and ARIA standards.
Expert-level proficiency in JavaScript and TypeScript, with significant experience building complex ReactJS applications.
Hands-on experience with modern frontend technologies including Vite, Tailwind CSS, shadcn/Radix UI, or comparable component libraries.
Working knowledge of Python for interfacing with backend APIs, machine learning models, and systems integrations.
Experience leveraging agentic AI development tools such as Claude Code, Antigravity, Kiro, GitHub Copilot, or similar technologies within the software development lifecycle.
Foundational knowledge of Artificial Intelligence concepts and hands-on experience integrating AI/ML APIs, Large Language Models (LLMs), conversational agents, or RAG-based solutions into web applications.
Proven experience deploying and managing frontend web applications using AWS services such as S3, CloudFront, API Gateway, and related technologies.
Strong understanding of RESTful APIs, application state management, and modern UI/UX best practices.
Excellent analytical, problem-solving, and communication skills with the ability to translate complex mission requirements into intuitive software solutions.

Preferred Qualifications

Experience supporting federal or mission-focused environments.
Experience building applications that support operational decision-making, data analysis, intelligence workflows, or automated discovery capabilities.
Experience working with modern AI orchestration frameworks, prompt engineering methodologies, or AI-powered user experiences.

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.

#M-2 #LI-CB5
Ref: #851-Rockville-S1

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Refine Your Search

front end developer jobs in leesburg va

UI/UX Developer

Entry Level React Developer

Junior Developer

Associate Software Engineer, Frontend

Junior WordPress Developer

ReactJS Developer

Android Software Engineer - AI Trainer

Senior UI/UX Engineer

Android Developer - AI Trainer

Senior UI/UX Engineer

Front End Software Engineer - TS/SCI with Polygraph

.NET Developer

Software Engineer - TS/SCI with Polygraph

SharePoint Developer - TS/SCI with Polygraph

SharePoint Developer - TS/SCI with Polygraph

Front End Software Engineer - TS/SCI with Polygraph

Mobile Developer

Mid-Level UI/UX Developer

Web Developer

Front-end developer

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