Principal CX/UX Designer – API Developer Platform

Locations: Coppell, TX | Chicago, IL | Harrisburg, PA | Plantation, FL | Austin, TX
Work Arrangement: Hybrid – 8 days per month onsite
Employment Type: Full-Time

Work Authorization: Must be legally authorized to work in the United States without employer sponsorship, now or in the future.

Job Summary

We are seeking a Principal CX/UX Designer to lead user experience strategy and design for an API Developer Platform. The ideal candidate will have extensive experience designing complex B2B, enterprise, or developer-focused products, with strong expertise in API experiences, developer portals, SDKs, technical documentation, prototyping, and user research.

Key Responsibilities

• Lead UX strategy and design for APIs, developer portals, SDKs, documentation, and AI-powered developer tools.
• Design end-to-end developer journeys, including API discovery, authentication, integration, debugging, and monitoring.
• Partner with product managers and engineers to shape API contracts and platform roadmaps.
• Conduct developer interviews, usability testing, and research to validate design decisions.
• Create user flows, information architecture, high-fidelity prototypes, and interactive demonstrations.
• Establish scalable design patterns and standards across multiple teams.
• Improve developer adoption, time to first successful API call, and developer satisfaction.
• Collaborate with engineering teams throughout implementation and continuously improve experiences using user feedback.
• Mentor designers and influence senior stakeholders across product and technology organizations.

Required Qualifications

• 10+ years of UX or product design experience involving complex B2B, enterprise, or developer platform products.
• A portfolio demonstrating measurable design impact.
• Proven experience designing APIs, developer portals, SDKs, or technical documentation.
• Working knowledge of REST APIs, authentication, and error handling.
• Expertise in interaction design, information architecture, user flows, and high-fidelity prototyping.
• Experience using modern prototyping, coding, and AI tools.
• Strong user research skills, including developer interviews, usability testing, and data analysis.
• Experience establishing design systems and scalable design standards.
• Proven ability to influence engineering leaders, executives, and cross-functional teams.
• Strong communication, collaboration, and mentoring skills.

Mandatory: Candidates must meet the stated U.S. work authorization requirements and be available for the hybrid work arrangement.