Senior UX Designer
FastnWarsaw, Masovian Voivodeship, Poland • United States
Posted December 12, 2025
Full Time
About the Company
Fastn empowers SaaS companies to seamlessly embed integrations into their products using AI-driven infrastructure. The platform offers a scalable, managed ecosystem that enables rapid deployment of strategic integrations, a proprietary app marketplace, and new revenue channels through partner‑sourced offerings. By simplifying integration complexity, Fastn accelerates market penetration, enhances partner ecosystems, and delivers richer, more connected customer experiences. Its unique blend of AI, embedded integration, and marketplace capabilities sets it apart in the integration-as-a-service space.
Job Description
Senior UX Designer at Fastn. Lead UX initiatives, design intuitive workflows, conduct user research, and champion a user-centered design culture.
Requirements
- 8 - 10+ years of UX design experience, preferably in SaaS or complex web applications
- Early-stage startup experience in the B2B space
- Strong portfolio showcasing end-to-end design work with a focus on user-centered problem-solving
- Expertise in Figma and modern design/prototyping tools
- Proven ability to translate technical requirements into intuitive interfaces
- Experience conducting user research and usability testing
- Excellent communication skills with the ability to clearly articulate design decisions
- Experience with component-based design systems
- Comfortable working cross-functionally with product and engineering teams
Benefits
- Competitive compensation
- Meaningful equity
- Flexible remote work environment