Principal Software Engineer

About Us

CEF is pioneering the future of AI-driven data infrastructure by enabling real-time, privacy-first computation directly on users’ own data. We blend decentralized edge clusters and agentic AI to deliver secure, sovereign, and agile AI workflows. By orchestrating multi‑agent compute at the edge, we empower individuals and organizations to retain full control over their data—without relying on centralized tech giants.

As a company, we value speed, ownership, and clarity. We work lean, move fast, and focus on execution.

About the Role

We’re hiring a full-stack-minded software engineer to build the backbone of our AI-first platform. You’ll work across the stack—owning backend services, SDKs, and developer tools—and play a foundational role in turning concepts into production systems. This role combines strategic thinking, hands-on engineering, and cross-functional collaboration.

What You’ll Do

Design and implement backend systems and developer-facing APIs Rapidly prototype new features with tools like Cursor and React Build and maintain SDKs, CLIs, and self-serve dev platforms Lead projects end-to-end with focus on quality, performance, and scale Collaborate closely with design, product, and founding teams Mentor other engineers and contribute to our engineering culture

What You Bring

4+ years in software development Deep CS fundamentals and experience across languages (Go, Rust, Kotlin, TS, etc.) Strong testing and software quality discipline (TDD preferred) Clear communicator with solid technical writing skills Bonus: experience with distributed systems, Web3, GraphQL, or ML/AI apps Bonus: past leadership or entrepreneurial experience

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