UI/UX Usability & Testing Intern

Location: Remote / Miami, FL

Company: Nebulai Corporation

Website: https://nebulai.com

Type: Internship

Duration: 3–6 months

Nebulai is building the world’s first Humans AI Agents Marketplace, where people and intelligent agents collaborate to deliver innovation, productivity, and value creation at scale. Our platform connects enterprises, AI developers, and human experts through a trusted digital marketplace that enables co-creation, deployment, and orchestration of AI-powered solutions.

We’re entering a new era of hybrid intelligence — what we call Superminds — and we’re looking for a creative and analytical UI/UX Usability & Testing Intern to help us design intuitive, human-centered experiences for this next generation of interaction between humans and AI agents.

As a UI/UX Usability & Testing Intern, you will collaborate closely with Nebulai’s product, design, and engineering teams to ensure that our marketplace and agentic platform deliver an exceptional user experience. You’ll be responsible for conducting usability tests, gathering user feedback, designing interaction flows, and supporting continuous UI/UX improvements for both the web interface and agentic design system.

• Conduct usability studies, heuristic evaluations, and user interviews to identify friction points in the user journey.
• Create and maintain wireframes, prototypes, and user flows in collaboration with designers and developers.
• Test the platform’s interface and interaction with AI agents to ensure intuitive and seamless user experiences.
• Analyze usability metrics and propose actionable insights for improvement.
• Support A/B testing, accessibility reviews, and mobile responsiveness validation.
• Document usability findings and recommend design enhancements to improve onboarding, engagement, and conversion.
• Collaborate with cross-functional teams to define and maintain UI/UX design standards and testing frameworks.

• Currently pursuing or recently completed a degree in Human-Computer Interaction (HCI), UX Design, Psychology, Computer Science, or a related field.
• Familiarity with design tools such as Figma, Adobe XD, or Sketch.
• Knowledge of usability testing methods, user research, and UX metrics.
• Understanding of responsive design, web accessibility (WCAG), and UI testing frameworks (e.g., Playwright, Cypress, or similar).
• Strong curiosity about AI, agentic design, and human-AI collaboration.
• Excellent communication and analytical skills with a passion for user-centered design.

• Hands-on experience designing and testing interfaces for a cutting-edge AI marketplace.
• Mentorship from product designers and AI engineers shaping the future of human-agent collaboration.
• Exposure to usability testing methodologies and AI-driven design principles.
• Opportunity to impact the design of Nebulai’s core marketplace and shape the user experience of the world’s first hybrid Human AI platform.