Senior Fullstack Developer, Data Foundations

The Hercules team builds the backbone of Fullscript’s data ecosystem; everything from the services, models, and tooling that make sure the right data reaches the right systems in the right shape. We’re the group that keeps the platform upright: reliable, efficient, and able to scale as the business grows. We’re hiring a Senior Fullstack Developer to join this team. You’ll work in our profile and audience lane, where customer, product, and marketing data come together to power personalization and insight across the platform. This role is a fit for someone who loves creating well-designed systems, building reusable tooling, and partnering closely with technical and non-technical teams to ship solutions that last. You’ll write production-grade backend and fullstack code, shape foundational architecture, and build the packages and SDKs other engineers rely on. You’ll operate with autonomy, collaborate across domains, and bring clarity, curiosity, and good judgment to a space that grows more important every quarter. This is a hands-on engineering role, not a pure data role. You’ll work deeply across backend services, developer tooling, event-driven systems, and the infrastructure that moves and shapes data at scale.