Open to opportunities

Enrique Souza

@enriquesouza

Senior software engineer focused on Rust blockchain infrastructure and privacy-first AI systems, delivering production-grade distributed systems.

Brazil

Message

What I'm looking for

I’m looking for a role where I can build privacy-first, production-grade systems—Rust-heavy backend and distributed blockchain infrastructure—while shipping real AI assistants with strong engineering execution.

I’m a senior software engineer with more than 20 years of experience in software development and more than 8 years focused on blockchain systems since 2017. My background is rooted in backend engineering and distributed systems, with deep work across non-custodial wallet infrastructure, TSS/MPC signing flows, and cross-chain transaction handling for DeFi-related architectures. I’m actively improving in Rust every day and applying it in production-grade wallet and infrastructure contexts.

I co-founded Aizzy.ai, helping design and build AI systems used by 300K+ users, with a strong emphasis on privacy-first architecture, developer tooling, contextual workflows, and practical LLM applications. I build AI assistants and document-based workflows that prioritize real-world delivery—content ingestion, website extraction, and contextual pipelines—while balancing privacy and architecture. Beyond AI, I’ve contributed to secure wallet infrastructure at Vultisig, built DEX and swap systems and led a 16-engineer team at BetVerse, and led distributed engineering and enterprise architecture work at Finstro, always with hands-on systems thinking and strong debugging.

Experience

Work history, roles, and key accomplishments

Core Developer - Wallet Infra

Vultisig

Feb 2024 - Mar 2026 (2 years 1 month)

Developed non-custodial wallet infrastructure, implementing TSS/MPC signing flows and integrating Wallet Core APIs. Contributed Rust components for multi-chain transaction creation, signing, broadcasting, and debugging of cross-chain transaction failures.

Rust Security Engineering

Co-Founder, AI Systems

Aizzy.ai

Jan 2023 - Oct 2025 (2 years 9 months)

Co-founded Aizzy.ai and architected an AI platform used by 300K+ users with a privacy-first approach. Built backend services and contextual assistant/document workflows using Rust, Go, and Node.js.

Rust Go Node Privacy First Backend Workflows API Development

Blockchain Developer - NFT Backend

Myami Studio

Mar 2023 - Feb 2024 (11 months)

Built backend services for an NFT platform, including an NFT Bundle Builder and Ethereum NFT integration APIs. Delivered Web3 product features by implementing blockchain logic and supporting platform integrations.

Blockchain Development Ethereum Blockchain Integrations Backend API Integration XLabel

CTO & DEX Swap Engineer

BetVerse

Jan 2022 - Dec 2022 (11 months)

Built DEX and swap systems, developing Solidity smart contracts and defining end-to-end blockchain execution architecture. Led a remote team of 16 engineers and delivered full-stack blockchain product capabilities using Node.js and React.

Solidity Dex Swap Architecture Node React Team Leadership

Senior Consultant & Tech Lead

Finstro

Apr 2020 - Dec 2022 (2 years 8 months)

Led a distributed engineering team and architected the RTGL system. Integrated a C# API with Salesforce and supported enterprise architecture work using Node.js and AWS QLDB.

Distributed Systems System Architecture Node AWS QLDB Salesforce Integration Enterprise Architecture Technical Leadership