Senior UX Designer

fastn, Inc. · via Himalayas ·

TypeFull-time job
LocationArgentina
Posted1 hour ago
Senior UX Designer
Location: Remote (Some overlap hours with Central Time US.)
Language : ENGLISH (MUST HAVE)
Type: Full-Time
Reports to: CEO
About Fastn
Fastn is on a mission to revolutionize how SaaS companies connect with their customers environments. Powered by AI, we provide an embedded integration infrastructure that enables SaaS businesses to build, scale, and manage their integration ecosystems effortlessly.
With Fastn, companies can launch strategic integrations, create their own app marketplace, and unlock new revenue streams by offering seamless connectivity with the tools their customers already use. Our platform goes beyond integrationsit accelerates adoption, drives product-led growth, and delivers smarter, more valuable customer experiences.
If youre passionate about crafting world-class user experiences and solving complex UX challenges in a fast-paced startup environment, Fastn is the place to be.
What Youll Do
As a Senior UX Designer, youll be the driving force behind user experience design at Fastn. You will lead UX initiatives across our platform, ensuring that every interaction is seamless, intuitive, and empowering for our users. From onboarding to feature discovery, your designs will directly impact product adoption, satisfaction, and retention.
Your Responsibilities
Lead UX design across the Fastn platformfrom user flows and wireframes to high-fidelity UI and prototypes

Own and evolve Fastns design system to ensure consistency across all touchpoints

Design intuitive workflows for complex technical tasks, including onboarding, integration setup, and feature adoption

Conduct user research, usability testing, and interviews to validate and iterate on design decisions

Build and test design prototypes to gather feedback from internal stakeholders and customers

Collaborate closely with product managers, engineers, and leadership to align designs with product goals

Champion a user-centered design culture and help establish UX best practices within the company

What Were Looking For
Were seeking a seasoned UX designer with a track record of building exceptional SaaS experiences and solving complex problems through elegant design. If you thrive in early-stage environments and enjoy shaping design culture from the ground up, we want to talk to you.
Must-Have Skills & Experience
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

Nice-to-Have Skills
Experience with low-code/no-code platforms or developer-focused tools

Familiarity with APIs, integration platforms, or technical product UX

Understanding of front-end technologies (HTML, CSS, JavaScript)

Experience establishing scalable UX processes in high-growth environments

Why Join Fastn?
Shape the UX vision of a category-defining integration platform

Drive meaningful product improvements in a high-impact role

Work closely with passionate product and engineering teams solving real user problems

Opportunity to grow into a design leadership position as the company scales

Competitive compensation, meaningful equity, and a flexible remote work environment

Originally posted on Himalayas
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