UI / UX Designer Developer, Senior

LCG is seeking a UI/UX Designer 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.

Key Responsibilities

UI/UX Design and User Experience * 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

Front-End Development * 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

AI-Driven Application Integration * 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

Collaboration and Agile Development * 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

Testing, Documentation, and Training * Conduct usability testing and support User Acceptance Testing (UAT) activities

* Develop and maintain UI/UX documentation, including design systems and style guides

Bachelor’s degree from an accredited institution in related fields (Computer Science, Human-Computer Interaction, UX Design, Information Technology, Data Science, or similar)

Experience

Required: * 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

Preferred: * 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

Certifications (Preferred) * 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.)

Required Skills and Competencies * 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

The projected compensation range for this position is $90,000 to $140,000 per year benchmarked in the Washington, D.C. metropolitan area. The salary range provided is a good faith estimate representative of all experience levels. Salary at LCG is determined by various factors, including but not limited to role, location, education/training, knowledge, skills, competencies, certifications, and experience.

LCG offers a competitive, comprehensive benefits package which includes health insurance options (medical, dental, vision), life and disability insurance, retirement plan contributions, paid leave, federal holidays, professional development, and lifestyle benefits.