Note: The job is a remote job and is open to candidates in USA. Billtrust is a leader in B2B accounts receivable workflow and payment software, providing AI-powered solutions for finance leaders. The Lead UX Designer will drive product design strategy and execution, focusing on creating high-quality, AI-native product experiences and mentoring junior designers.
Responsibilities
- Drive end-to-end design for complex, multi-step SaaS products — from early-stage problem framing through high-fidelity prototyping and handoff
- Lead the creation of cross-platform user flows, interaction models, and design specifications that translate cleanly to engineering
- Design AI-native product experiences — including conversational UI, predictive features, AI output states, and human-AI interaction patterns — with the same rigor applied to any other product surface
- Leverage AI design tools and agentic workflows to accelerate exploration, generate design variations, and reduce time-to-validation
- Champion design quality across the team, establishing patterns and raising the bar on craft, consistency, and usability
- Plan and execute user research — generative and evaluative — to continuously inform product direction
- Synthesize qualitative and quantitative signals (usability studies, analytics, customer feedback, market analysis) into clear design recommendations
- Work fluently with product analytics tools (e.g., Amplitude, Mixpanel) — pull your own data, form hypotheses, and connect design decisions to measurable outcomes
- Identify friction and opportunity in existing experiences; drive validated improvements backed by evidence, not assumptions
- Frame design problems with clarity — connecting user needs to business outcomes and technical constraints
- Actively contribute to product strategy conversations; push back constructively when proposed solutions don't serve users or undermine long-term product integrity
- Collaborate cross-functionally with product, engineering, and stakeholders throughout the full design-to-delivery cycle
- Contribute to and maintain the team's design system, ensuring consistency and scalability across the product surface
- Mentor and coach junior and mid-level designers; provide structured, actionable feedback on work and process
- Model how to use AI tools thoughtfully in a design workflow — not as a shortcut, but as a multiplier for quality and speed
- Help shape team processes, critique culture, and design standards
Skills
- 8+ years of product design experience, with demonstrated progression into a lead or senior IC role
- Portfolio showing end-to-end ownership of complex B2B or enterprise SaaS product design — design thinking, not just visual execution
- Deep proficiency in Figma, including component libraries, auto-layout, and prototyping
- Hands-on experience with design systems — building, scaling, and governing them
- Strong research chops: usability testing, interviews, synthesis — you know when to do which and how to act on what you find
- Demonstrated data literacy: comfortable pulling and interpreting product analytics to inform and validate design decisions
- Proven ability to influence product direction and navigate stakeholder dynamics with confidence and clarity
- Familiarity with front-end principles (HTML/CSS concepts); enough to design with engineering constraints in mind
- Experience designing AI-powered product features (conversational UI, predictive interfaces, AI error/confidence states)
- Hands-on use of AI design tools — generative UI, AI-assisted prototyping, synthetic user research methods, or similar
- Background designing for fintech, payments, or financial operations workflows
- Experience leading or mentoring other designers in a cross-functional product team
Benefits
- Comprehensive health coverage
- Competitive retirement
- Generous PTO and parental leave
- Flexible work options
- Meaningful investment in your professional development
- Extra incentives like equity, commissions, or other variable performance-related bonuses (if qualified)
Company Overview
Billtrust develops a payment cycle management platform designed to automate every step in the invoice-to-cash process. It was founded in 2001, and is headquartered in Lawrenceville, New Jersey, USA, with a workforce of 501-1000 employees. Its website is https://billtrust.com.