Senior UX Designer

OnRamp•Boston, MA

3d•Hybrid

About The Position

This is OnRamp's first dedicated UX design hire. You'll own the end-to-end design function across the full product — the internal application used by our customers' teams and the external portal experienced by their end customers. A major focus of this role is shaping how AI-powered experiences come to life in the product,as well as owning the end to end user experience. You'll work directly with the Head of Product and a small, high-output engineering team. There is no existing design team or established design system to inherit — you'll be building the foundation. This is a high-autonomy role for someone who thrives in ambiguity, moves fast, and cares deeply about craft.

Requirements

7+ years of product design experience in B2B SaaS, with a portfolio that demonstrates strong interaction design and systems thinking.
Experience designing AI-powered or intelligent features — you understand the unique UX challenges of non-deterministic systems, progressive disclosure of automation, and building user trust in AI.
Comfort operating as a solo designer embedded in a product and engineering organization. You don't need a design manager or a mature design ops function to do great work.
Strong opinions on craft, loosely held. You care about details but adapt quickly when context changes.
Ability to work across the full design stack — research, strategy, interaction design, visual design, and light prototyping or front-end contribution.
Excellent communication skills. You can articulate design rationale to engineers, product leaders, and executives clearly and concisely.
Experience with Figma (or equivalent) and familiarity with component-based UI frameworks (Vue, React, etc.) is a strong plus.

Nice To Haves

Experience in customer onboarding, implementation, customer success, or adjacent post-sale workflows.
Background designing multi-persona products (internal users + external end customers).
Familiarity with design systems built on top of libraries like PrimeVue, Vuetify, or similar.
Prior experience at a Series A–C stage startup where you helped define the design culture from scratch.

Responsibilities

Own UX across the full OnRamp product — internal app, customer portal, AI features, and integrations.
Design AI-native experiences: agent interfaces, human-in-the-loop patterns, & key AI interaction points.
Establish OnRamp's design foundation — patterns, components, interaction standards.
Partner closely with Product and Engineering to go from problem framing through shipped work, often in compressed timelines.
Conduct user research to inform design decisions and validate direction.
Create flows, wireframes, prototypes, and high-fidelity mocks. Contribute to front-end implementation when it accelerates delivery.
Champion usability and coherence across a product that spans complex B2B workflows, configuration surfaces, and a consumer-grade portal experience.