Principal Full-Stack Engineer - AI-Driven SaaS, Remote

Sleek is seeking a Principal Full Stack Engineer to lead architecture and end-to-end delivery of complex SaaS applications. You will champion AI workflows, mentor engineers, and raise the bar for code quality and system design across Sleek.

You will own the full stack—from UI to backend services—and drive production-ready AI features, observability, and scalable cloud-native solutions in a fast-growing fintech environment. Remote work is supported.