Senior UI/UX Engineer for Mission-Critical Gov Apps

Piper Companies; Reston (VA); Hybrid; USD 170,000 - 190,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) plan

PTO & federal holidays

Job summary

Zachary Piper Solutions is seeking a Senior UI/UX Software Engineer to modernize mission-critical government applications. The role blends UX design, frontend coding, and information architecture to deliver user-centric interfaces for complex operations.

This is a hybrid role based in Reston, VA, with options for Joint Base Anacostia-Bolling or Annapolis Junction. Candidates must hold TS/SCI clearance with polygraph ability and have 13+ years in UI/UX or frontend work, plus hands-on experience

Qualifications

• Active TS/SCI Clearance with the ability to obtain or maintain a Polygraph.
• 13+ years of relevant experience in UI/UX design, frontend development, or application modernization.
• Strong expertise in UI/UX design principles, usability testing, and human-centered design methodologies.
• Proficiency with HTML, CSS, JavaScript, and Figma.
• Experience developing reusable components, design systems, and frontend architectures.
• Strong communication skills with the ability to engage both technical and non-technical stakeholders.

Responsibilities

• Translate mission and technical requirements into wireframes, user flows, prototypes, and intuitive user experiences.
• Conduct user research, usability testing, and workflow analysis to improve application effectiveness.
• Develop and maintain reusable UI components and design systems.
• Design information architectures, navigation structures, and interfaces that simplify complex workflows and datasets.
• Ensure consistency across applications through standardized design patterns and UX best practices.
• Implement and maintain Section 508 accessibility compliance standards.
• Collaborate within Agile/Scrum teams to support sprint planning, user stories, testing, documentation, and releases.
• Support modernization, sustainment, and enhancement efforts for mission-critical applications.

Skills

UI/UX design principles

Usability testing

Human-centered design

HTML

CSS

JavaScript

Figma

React/Angular/Vue

Tools

HTML

CSS

JavaScript

Figma

Node.js

AWS

React

Angular

Vue

Job description

Zachary Piper Solutions is seeking a Senior UI/UX Software Engineer to modernize mission-critical government applications. The role blends UX design, frontend coding, and information architecture to deliver user-centric interfaces for complex operations.

This is a hybrid role based in Reston, VA, with options for Joint Base Anacostia-Bolling or Annapolis Junction. Candidates must hold TS/SCI clearance with polygraph ability and have 13+ years in UI/UX or frontend work, plus hands-on experience