Senior Full Stack Software Engineer (US)

We are looking for a Senior Full Stack Software Engineer with 4, 12 years of experience to join a small, high-impact engineering team building AI-powered financial infrastructure for senior care. You'll take ownership of product initiatives end-to-end, breaking down ambiguity into shippable work and driving features into production independently. Sunbound is an AI-native fintech company processing $1B+ in payments annually, and this is a ground-floor opportunity to work directly with the CTO and shape both the product and engineering culture. Ideal candidates come from fintech or healthtech backgrounds and thrive in fast-moving, early-stage environments where data integrity and speed both matter.

What will you be doing?

• Own product initiatives end-to-end, scoping ambiguous problems, breaking them into deliverable chunks, and shipping to production

• Make architectural and engineering design decisions that shape the platform's direction

• Build full-stack features across React and Node.js powering payments, claims, and revenue automation for senior living operators

• Collaborate cross-functionally with product and non-technical stakeholders to translate complex business processes into software

• Use AI tooling and automation to build an AI-native product experience