Staff Fullstack Engineer

ABOUT THE ROLE We're a Series A/B AI-native financial planning & analysis (FP&A) SaaS company — a lean, high-output team of ~40 — looking for a Staff Fullstack Engineer to help lead platform development from the ground up. You'll work directly with the CEO, CTO, and engineering team to shape architecture, drive the product roadmap, and build software that has an outsized impact on finance teams at scale. This is an early, high-leverage opportunity for an engineer who wants to be a true technical pillar: setting direction, raising the bar on engineering culture, and shipping product that matters. WHAT YOU'LL DO - Partner closely with leadership and teammates to prioritize and execute on the product roadmap. - Design, develop, and own complex features and software components end-to-end. - Deliver robust, scalable, and well-tested code across the full stack. - Help establish engineering best practices and lay the foundation for a high-performing, healthy team culture. - Collaborate with D