Francisco Rappazzini

Solana Blockchain Developer | Rust

Experience

Solana Blockchain Developer

Freelance | October 2025 – Present

Design and development of custom Solana programs using Rust and Anchor for different clients and use cases. Worked on DeFi logic, token-based systems, and program integrations, delivering production-ready solutions with a strong focus on security, performance, and best practices. Responsible for testing, auditing, and integrating programs with backend and frontend systems while working directly with clients to deliver on time.

Solana Blockchain Developer

Inside Dark Studio | April 2023 – October 2025

Designed, developed, and deployed production-ready Solana programs using Rust and Anchor for DeFi, RWA, and Web3 gaming projects. Shipped secure and high-performance programs used in real client products, implemented integration and fuzz testing to improve reliability, and collaborated closely with frontend and backend teams. Managed AWS infrastructure and followed best practices to ensure scalability, security, and long-term maintainability.

Full Stack Blockchain Developer

OPIS EcoWallet | October 2022 – April 2023

Built the main web application and integrated it with blockchain smart contracts using Next.js, Node.js, and blockchain libraries. Contributed to full-stack architecture design, managed AWS services, and worked with the team to successfully deliver and launch the project MVP with stable frontend, backend, and blockchain integration.

Full Stack Web Developer

Freelance | August 2021 – August 2022

Designed and developed multiple production web applications for different clients, including landing pages, dynamic platforms, and e-commerce solutions. Managed projects end-to-end using React/Next.js, Node.js, and SQL-based systems, delivering reliable and maintainable solutions that met client needs and deadlines.

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