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Cristino Mario
Cristino Mario

Smart Contract Engineer

Open to offers · Member since 14 Oct 2026
Location
United States
Desired salary
Unspecified
Work preference
Remote Only / Contract, Freelance
Experience level
Mid

About

Professional summary

I am a Smart Contract Engineer specializing in EVM-compatible environments, with a particular focus on FEVM and the Filecoin Virtual Machine.

I build and port on-chain identity, wallet, registry, and escrow systems for AI agent tooling and agent-to-agent payment flows.

I write production Solidity contracts using Foundry for development, testing, deployment, and verification. I prioritize maintainable architecture, clear ownership controls, limits, and reliable release mechanisms.

I develop JavaScript and TypeScript SDKs that make smart contract functionality accessible to builders without requiring deep contract expertise.

I also create public dashboards that improve visibility and interaction with deployed contracts, registries, wallets, and escrow systems.

I work effectively in milestone-based grant environments, delivering clearly scoped work with tests, documentation, and transparent technical progress.

Skills

9 capabilities
Blockchain DevelopmentDashboard DevelopmentEVMJavaScriptSDK DevelopmentSolidityTechnical DocumentationTest Driven DevelopmentTypeScript

Experience

Career history

Smart Contract Engineer / Protocol Porting Independent / Project-based

I port and implement agent identity, wallet, and escrow contracts on FEVM using Solidity and Foundry. My work includes designing and testing registry, factory, and escrow flows for AI agent tooling and payment use cases.

I build JavaScript and TypeScript SDKs for contract interaction, alongside public dashboards that improve protocol visibility. I deliver work against grant milestones with tests, documentation, maintainable architecture, and collaboration on scope and technical decisions for the Filecoin ecosystem.

Solidity, EVM Tooling & Blockchain Development Earlier project experience

I gained hands-on experience with Solidity, Foundry, EVM-compatible deployments, and developer-facing blockchain tooling.

I developed strong practices around test-driven smart contract development, clear technical documentation, and milestone-oriented delivery.

Education

Learning history
No education data available.

This professional hasn’t added portfolio projects yet.

This professional hasn’t listed any services yet.

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