Demo

Developer-UX User Interface Professional

Apex Systems
Mc Lean, VA Contractor
POSTED ON 1/8/2026
AVAILABLE BEFORE 2/6/2026
Job#: 3016634

Job Description:

Front-End Developer (Angular) – Onsite in McLean, VA

Assignment Type: Contract Only

Work Location: Fully Onsite – McLean, VA

We are seeking a highly skilled Front-End Developer with strong Angular expertise to join our team onsite in McLean, VA. This role focuses on building and maintaining a shared UI component library used across multiple applications. The ideal candidate is collaborative, detail‑oriented, and passionate about delivering high‑quality, accessible, and scalable UI solutions.

Key Responsibilities

  • Develop and maintain complex, reusable Angular components within a shared component library.
  • Collaborate closely with UX/UI designers to implement sophisticated design specifications.
  • Apply advanced CSS techniques (Flexbox, Grid, theming) to create responsive, polished user experiences.
  • Ensure all components meet WCAG accessibility standards.
  • Document component usage, integration guidelines, and best practices.
  • Package, test, and publish the component library to Artifactory, ensuring proper versioning and dependency management.
  • Use Bitbucket for source control and participate in code reviews following established branching strategies.
  • Work with CI/CD pipelines to automate build, test, and deployment processes.
  • Validate cross‑browser compatibility and responsive behavior across devices.
  • Troubleshoot UI and styling issues in collaboration with designers and developers.
  • Support internal users of the component library, assisting with integration, debugging, and code fixes.
  • Participate in working sessions to resolve technical challenges in real time.
  • Write and maintain unit, integration, and end‑to‑end tests for Angular components.
  • Refactor and optimize components for performance and scalability.
  • Maintain up‑to‑date technical documentation.
  • Stay current with Angular, CSS methodologies, and evolving UX/UI best practices.
  • Research and recommend new tools, libraries, and frameworks to improve workflows.
  • Collaborate with backend developers to ensure seamless integration with APIs.
  • Adhere to code quality standards and participate in regular code reviews.
  • Mentor team members on Angular best practices, accessibility, and component development.
  • Incorporate user feedback to improve component functionality and usability.
  • Integrate third‑party libraries and APIs as needed.
  • Monitor and address security vulnerabilities within the component library.
  • Manage version control, upgrades, and migrations.
  • Create and maintain demo applications showcasing component usage.
  • Optimize components for performance and resource efficiency.
  • Participate in Agile ceremonies including sprint planning and daily stand‑ups.
  • Track and report issues and enhancements using Jira.
  • Ensure compliance with organizational and industry software development standards.

Required Qualifications

  • 5 years of experience in J2EE, Java, Web Development, and SQL.
  • Strong interpersonal and relationship‑building skills.
  • Proficiency in:
    • JavaScript
    • Angular (versions 16 )
    • HTML/CSS
  • Experience with:
    • Spring Boot
    • Java
    • SQL
  • Front‑end focused with some back‑end support capabilities.
  • Experience building UI frameworks or component libraries.
  • Strong understanding of front‑end design and UI development principles.
  • Excellent verbal and written communication skills.
  • Strong analytical and problem‑solving abilities.
  • Ability to work independently, manage multiple priorities, and meet deadlines.
  • Experience with Agile or Waterfall methodologies.

Preferred Skills

  • Experience with React (nice to have).
  • Ability to communicate ideas clearly and resolve issues collaboratively.
  • Organized, self‑starter, and proactive problem‑solver.
  • Demonstrated ability to mentor others and share knowledge effectively.

EEO Employer

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at [email protected] or 844-463-6178.

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click here for more details.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6 months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Apex team member can provide.

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click here for more details.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6 months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Apex team member can provide.

Apex Systems is part of the Commercial Segment of ASGN Incorporated.

NYSE: ASGN

4400 Cox Road

Suite 200

Glen Allen, Virginia 23060

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. (Do not submit resumes or solicit consultants to this email address). UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Apex Systems.

Hourly Wage Estimation for Developer-UX User Interface Professional in Mc Lean, VA
$50.00 to $61.00
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