[Remote] Lead UX Designer

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.ResponsibilitiesDrive end-to-end design for complex, multi-step SaaS products — from early-stage problem framing through high-fidelity prototyping and handoffLead the creation of cross-platform user flows, interaction models, and design specifications that translate cleanly to engineeringDesign 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 surfaceLeverage AI design tools and agentic workflows to accelerate exploration, generate design variations, and reduce time-to-validationChampion design quality across the team, establishing patterns and raising the bar on craft, consistency, and usabilityPlan and execute user research — generative and evaluative — to continuously inform product directionSynthesize qualitative and quantitative signals (usability studies, analytics, customer feedback, market analysis) into clear design recommendationsWork fluently with product analytics tools (e.g., Amplitude, Mixpanel) — pull your own data, form hypotheses, and connect design decisions to measurable outcomesIdentify friction and opportunity in existing experiences; drive validated improvements backed by evidence, not assumptionsFrame design problems with clarity — connecting user needs to business outcomes and technical constraintsActively contribute to product strategy conversations; push back constructively when proposed solutions don't serve users or undermine long-term product integrityCollaborate cross-functionally with product, engineering, and stakeholders throughout the full design-to-delivery cycleContribute to and maintain the team's design system, ensuring consistency and scalability across the product surfaceMentor and coach junior and mid-level designers; provide structured, actionable feedback on work and processModel how to use AI tools thoughtfully in a design workflow — not as a shortcut, but as a multiplier for quality and speedHelp shape team processes, critique culture, and design standardsSkills8+ years of product design experience, with demonstrated progression into a lead or senior IC rolePortfolio showing end-to-end ownership of complex B2B or enterprise SaaS product design — design thinking, not just visual executionDeep proficiency in Figma, including component libraries, auto-layout, and prototypingHands-on experience with design systems — building, scaling, and governing themStrong research chops: usability testing, interviews, synthesis — you know when to do which and how to act on what you findDemonstrated data literacy: comfortable pulling and interpreting product analytics to inform and validate design decisionsProven ability to influence product direction and navigate stakeholder dynamics with confidence and clarityFamiliarity with front-end principles (HTML/CSS concepts); enough to design with engineering constraints in mindExperience 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 similarBackground designing for fintech, payments, or financial operations workflowsExperience leading or mentoring other designers in a cross-functional product teamBenefitsComprehensive health coverageCompetitive retirementGenerous PTO and parental leaveFlexible work optionsMeaningful investment in your professional developmentExtra incentives like equity, commissions, or other variable performance-related bonuses (if qualified)Company OverviewBilltrust 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.