Billtrust
Website:
billtrust.com
Job details:
Who We Are
Finance leaders choose Billtrust to get paid faster, control costs, and maximize customer satisfaction. As the leader in B2B accounts receivable workflow and payment software, we provide the world's leading brands with AI-powered solutions across the full AR lifecycle—from invoice presentment and payment processing to cash application and collections. With over 2,600 global customers, more than $1 trillion in invoice dollars processed, and a proprietary network of 13 million buyers, Billtrust delivers business value through deep industry expertise and a culture relentlessly focused on meaningful customer outcomes.
We're an AI-first company, not just in what we build for our customers, but in how we work. Across every function, our teams use AI tools daily to work faster, make better decisions, and deliver higher-quality outcomes. We hire exceptional people, give them cutting-edge AI capabilities, and measure success by the impact they create. If you want to do the best work of your career at the frontier of AI and fintech, Billtrust is the place to do it.
Our Values
Customers
We relentlessly increase value for customer and do the right thing for them.
Action
We make 'thoughtfully fast' decisions, act quickly, cut through red tape, deliver progress not perfection, take ownership and accountability.
Team Spirit
We put the team ahead of ourselves, foster trust and respect, collaborate with passion, despise toxic politics, value our differences, and celebrate together.
Innovation
We challenge the status quo, experiment thoughtfully, and are novel and brilliant in what we create.
Excellence
We love to win, but we hate losing even more. We aspire to be the best and take pride in our work. When we fall short, we own it and come back stronger.
Senior Product Designer
The Senior Product Designer is a high-impact individual contributor responsible for owning design work end-to-end — from early problem framing through research, prototyping, and delivery. This role brings both craft and strategic thinking to complex SaaS product challenges, producing work that is well-reasoned, user-validated, and ready to build.
The Senior Product Designer has a strong grasp of the team's vision and product objectives, and consistently delivers designs that connect user needs to business outcomes. They understand how to design products that incorporate AI features — not just use AI tools to speed up their own process — and bring curiosity about emerging methods to how they work.
As a senior voice on the team, they actively contribute to design culture through mentorship and critique.
What You'll Do
Design & Craft
- Own the design of complex, multi-step, cross-platform user flows from concept through high-fidelity prototype.
- Produce well-structured wireframes, interaction models, mockups, and production-ready specs that engineering teams can act on confidently.
- Design AI-native product experiences where required — conversational interfaces, predictive UI patterns, AI output and error states — with appropriate rigor and user validation.
- Apply AI design tools — generative UI exploration, AI-assisted prototyping, rapid iteration — to improve the quality and velocity of your work.
- Contribute meaningfully to the team's design system: consuming components correctly, flagging gaps, and proposing additions where patterns are missing.
Research & Validation
- Plan and run usability testing and user research sessions; synthesize findings into actionable design recommendations.
- Collect and use qualitative and quantitative data to validate design decisions and clearly articulate how research shaped the outcome.
- Work comfortably with product analytics tools (e.g., Amplitude, Mixpanel) to pull relevant data, identify user behavior patterns, and ground design rationale in evidence.
- Identify friction points and usability gaps in existing product experiences; propose and drive validated solutions.
Collaboration & Communication
- Communicate design decisions clearly and confidently to stakeholders, product managers, and engineers at all stages of the design process.
- Participate actively in design reviews and critique; give and receive feedback with clarity and purpose.
- Partner closely with engineering to ensure design intent is preserved through implementation.
- Stay current on competitive products, design trends, and emerging AI tools; bring relevant insights back to the team.
Mentorship
- Provide structured, thoughtful feedback to junior and mid-level designers on their work and process.
- Model strong design habits: rigorous problem framing, research-grounded decision-making, and clear documentation.
Experience & Technical Background: Required
- 5+ years of product design experience in B2B or enterprise SaaS environments.
- Portfolio demonstrating end-to-end ownership of product design work — strong problem framing, research integration, and polished execution.
- Deep proficiency in Figma, including components, prototyping, and design system workflows.
- Solid experience with usability testing and user research methods — you know how to plan a study, run it, and translate findings into design action.
- Demonstrated data literacy: comfortable working with product analytics to inform and validate design decisions.
- Strong communication skills; comfortable presenting and defending design decisions to cross-functional partners.
- Familiarity with front-end fundamentals (HTML/CSS concepts) sufficient to design within engineering constraints.
Preferred
- Experience designing AI-powered product features (conversational UI, predictive interfaces, AI error and confidence states).
- Hands-on use of AI tools in a design context — generative exploration, AI-assisted research synthesis, or prompt engineering for design workflows.
- Experience contributing to or maintaining a shared design system at scale.
- Background in fintech, payments, or financial operations products.
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