UI / UX Developer, Senior

LCG, Inc.

19h•Hybrid

About The Position

LCG is seeking a UI/UX Developer, Senior to support our NIH client in designing intuitive, user-centered digital experiences for AI-powered applications. This role combines modern UI/UX design and front-end development with emerging Generative AI technologies, including Azure OpenAI, Large Language Models (LLMs), and intelligent automation tools. This role will support an NIH client focused on building AI-driven applications that enhance internal business processes and improve user engagement. The developer will design and implement user interfaces for AI applications such as chatbots, knowledge retrieval tools, and workflow automation platforms, ensuring a seamless and efficient user experience. The successful candidate will collaborate with product owners, developers, and stakeholders to translate complex AI capabilities into intuitive, accessible, and user-friendly interfaces. The role involves building modern front-end applications using React (or similar frameworks), designing user journeys, and integrating AI-powered backend services into responsive UI experiences. This position offers an opportunity to contribute to cutting-edge AI modernization initiatives at NIH, improving usability, accessibility, and adoption of Generative AI tools across federal programs.

Requirements

Bachelor’s degree from an accredited institution in related fields (Computer Science, Human-Computer Interaction, UX Design, Information Technology, Data Science, or similar)
Minimum 5 years of experience in UI/UX design and front-end development
Experience designing and developing responsive web applications using React (or similar frameworks)
Experience creating wireframes, prototypes, and user interface designs using tools such as Figma, Adobe XD, or Sketch
Experience integrating front-end applications with APIs and backend services
Exposure to AI/ML or Generative AI technologies (LLMs, chatbots, or automation tools)
Strong understanding of user-centered design principles and usability best practices
Experience working with HTML, CSS, JavaScript/TypeScript
Experience using GitHub for version control and collaborative development
Strong user-centered design mindset and attention to detail
Ability to simplify complex AI-driven functionality into intuitive user experiences
Strong problem-solving and analytical thinking skills
Excellent communication and collaboration abilities
Ability to work in a fast-paced, Agile development environment
Self-motivated, proactive, and highly organized
Ability to Obtain Public Trust clearance

Nice To Haves

Experience designing UI for AI-powered applications (chatbots, AI assistants, or search tools)
Experience working with Azure OpenAI, LLMs, or AI-driven platforms
Experience supporting federal IT environments (NIH or HHS preferred)
Experience implementing Section 508 accessibility standards
Experience with design systems and component libraries
Familiarity with RAG pipelines and AI-driven search interfaces
Certified UX Professional (UX Certification)
Microsoft Azure Fundamentals (AZ-900)
Microsoft Azure AI Fundamentals (AI-900)
Front-End or UI/UX certifications (Google UX, etc.)

Responsibilities

Design user-centered interfaces for AI-powered applications, ensuring intuitive workflows and seamless user interactions
Develop wireframes, prototypes, and high-fidelity UI designs for web-based applications
Conduct user research, usability testing, and iterative design improvements based on feedback
Translate complex AI functionality (LLMs, chatbots, automation tools) into simple, accessible user experiences
Ensure compliance with federal accessibility standards (e.g., Section 508) and usability best practices
Collaborate with stakeholders to define user journeys, personas, and interaction models
Develop responsive, modern web applications using React, JavaScript/TypeScript, HTML, and CSS
Build reusable UI components and design systems to support scalable application development
Integrate front-end interfaces with backend AI services via RESTful APIs
Optimize application performance, responsiveness, and cross-browser compatibility
Collaborate with backend developers to ensure seamless integration of UI with AI-driven services
Design and enhance user interfaces for AI-powered tools such as chatbots, knowledge assistants, and automation platforms
Integrate LLM-based features (e.g., conversational interfaces, summarization tools, search experiences) into front-end applications
Support development of user experiences for Retrieval-Augmented Generation (RAG) workflows and semantic search systems
Work with AI engineers to improve usability, explainability, and trust in AI-generated outputs
Contribute to enhancing the client AI Chat Tool with improved UX, accessibility, and interaction design
Work closely with product owners, developers, AI engineers, and stakeholders to deliver user-focused solutions
Participate in Agile ceremonies including sprint planning, stand-ups, and retrospectives
Translate business requirements into design and technical implementation plans
Support rapid prototyping and iterative development of AI-enabled user experiences
Conduct usability testing and support User Acceptance Testing (UAT) activities
Develop and maintain UI/UX documentation, including design systems and style guides
Create user guides, training materials, and visual documentation for applications
Support knowledge transfer and training sessions for end users and stakeholders