We are an embedded finance
architecture firm.

Sean is a fintech executive with 25+ years of payments, banking, product, and technology delivery experience — including 15+ years of payments product leadership. Deep expertise across the full payments lifecycle: treasury, liquidity management, B2B settlement, cross-border, and modern payment rails including Virtual Card, Debit, Credit, ACH, RTP/FedNow, Wires, and stored value.

Specializes in the critical intersection of Finance, Operations, and Product Strategy — with a track record that includes achieving 42% payments monetization (vs. an industry average of 5–15%), AI-driven payment delivery, and building a digital bank from zero to $1B in under 12 months and $4B in 5 years. Launched 20+ payments and lending products. Converted 4 million checks to epayments with a 12-point improvement in electronic adoption.

Bronwyn is a strategic operator and systems leader with 15+ years of experience transforming complex, cross-functional organizations into high-performing, scalable operations. Specializes in translating strategy into execution — designing operating models, workflows, and decision structures that teams can actually run.

Has led organizations of up to 300 people, delivered 40%+ improvements in automation and throughput, and unlocked $10M+ in annualized efficiency gains. At ExpandUp, she brings the execution lens — engineering the operating models that turn architecture into measurable results.

Justin is a fintech founder, product executive, and investor with 25+ years of experience building and scaling B2B software, payments, and integration-led platforms. He brings first-hand experience co-founding, scaling, and exiting Strongroom Solutions, an AP automation and B2B payments company, where a monetizable payments strategy helped grow the business from roughly $3M to $30M in ARR in less than two years.

Deep expertise across payment monetization, ERP and partner integrations, product strategy, product design, business development, customer research, and go-to-market execution. At AvidXchange, Justin led integration and platform initiatives that included launching 30+ partner integrations and delivering AvidConnect, a platform investment that reduced integration build time and cost by approximately 70%.

ExpandUp works with a network of specialized fintech engineering teams assembled around client program requirements. When a program needs capabilities beyond strategy and architecture — we bring the right builders to the engagement.

Our engineering partners are specialists in payments infrastructure, AI systems, and lending platforms — with the depth to design and build custom payment capabilities that fit the architecture, not the other way around.