Expert UI/UX Developer

ManTech; Herndon (VA); On-site; USD 170,000 - 210,000; Full time

Job summary

MANTECH is hiring an Expert UI/UX Developer to support the Intelligence Community in Herndon, VA. You will architect responsive front-end apps, shape user workflows, and collaborate with cross-functional teams in an Agile/Scrum environment onsite.

The role emphasizes UI/UX excellence, scalable components, and leadership of technical teams while aligning with security and mission requirements.

Qualifications

• High School Diploma and 11+ years of software development experience.
• 5+ years of experience with UI/UX development.
• Proficiency with Vue.js, JavaScript, HTML5 and CSS3.
• Experience with Python backend or scripting.
• Experience with Linux and Windows.
• Ability to lead technical teams and mentor developers.

Responsibilities

• Architect, design, and implement responsive front-end applications with deep UI/UX expertise.
• Analyze complex user and mission requirements to build robust, scalable software components.
• Create high-fidelity design mockups and wireframes for new features.
• Collaborate with cross-functional teams to assess baseline functionality and plan integration paths.
• Execute unit testing, support automated test suites, and coordinate with IV&V teams.
• Participate in Agile/Scrum ceremonies and maintain clear communications.
• Drive engineering excellence through root-cause troubleshooting and SDLC improvements.

Skills

UI/UX development

Team leadership

Agile methodologies

Front-end architecture

Unit testing

Education

Bachelor’s degree in Computer Science / Software Engineering / Information Systems

Tools

Vue.js

JavaScript

HTML5

CSS3

Python

Linux

Windows

Node.js

GitLab

GitHub

Job description

MANTECH is hiring an Expert UI/UX Developer to support work for the Intelligence Community in Herndon, VA 20171 (onsite). In this role, you will help architect and deliver responsive front-end applications, shape user-focused workflows, and partner with cross-functional teams in an Agile/Scrum environment.

What you’ll be doing

• Architect, design, and implement responsive front-end applications using deep UI/UX expertise to create seamless, intuitive user workflows.
• Analyze complex user and mission requirements to build robust, scalable, and maintainable software components.
• Create high-fidelity design mockups and wireframes for new product features to secure customer and stakeholder buy-in before sprint implementation.
• Collaborate with cross-functional team members to assess existing baseline functionality and plan integration paths.
• Execute unit testing, support automated test suites, and coordinate with IV&V teams prior to production deployments.
• Participate in Agile/Scrum ceremonies, including sprint planning, backlog grooming, daily stand-ups, and retrospectives.
• Maintain clear, transparent communication across development teams, project leadership, and end-user stakeholders.
• Drive engineering excellence through root-cause troubleshooting and continuous process improvements across the SDLC.

Required qualifications

• High School Diploma and 11+ years of experience with software development.
• 5+ years of experience with UI/UX development.
• Experience with Vue.js, modern JavaScript, HTML5, and CSS3.
• Experience with backend development or scripting experience developing in Python.
• Experience with cross-platform development across Linux and Windows.
• Ability to lead technical teams and mentor junior and mid-level developers.

Additional clearance requirement

• Active/current TS/SCI with Polygraph is required.

Tools and technologies

• Vue.js, JavaScript, HTML5, CSS3, Python, Linux, Windows

Preferred qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or a related technical discipline.
• Experience developing scalable server-side applications using Node.js.
• Strong working knowledge of Agile/Scrum methodologies and framework practices.
• Familiarity with software accessibility standards and compliance guidelines (for example, ADA compliance / Section 508).
• Experience with enterprise version control and CI/CD pipelines utilizing GitLab or GitHub.

Physical requirements

• Must be able to remain in a stationary position 50% of the time.