Pablo Fernández is a core Nostr developer and the founder of Sovereign Engineering, focused on building open, censorship-resistant technologies. He is widely recognized for his contributions to the Nostr ecosystem, including the creation of Wikifreedia, Nutzaps, TENEX, and the Nostr Development Kit (NDK), a foundational toolkit used by developers building on the Nostr protocol.

His work centers on decentralized infrastructure, open-source development, and the advancement of permissionless communication systems. Through both independent projects and community-driven initiatives, Pablo has played a key role in expanding Nostr’s developer tooling and practical applications, helping accelerate adoption across the ecosystem.

Pablo is known for combining strong engineering discipline with a principled commitment to digital sovereignty, privacy, and user-controlled networks, contributing to the broader movement toward decentralized and resilient internet architecture.