Daniel Marin
Chief Technology Officer at Heavy Duty Builders
Spain
Summary
👤
Senior🎓
Top SchoolDaniel Marin is a pragmatic Web3 CTO and open-source engineer with 11 years of experience building scalable frontend and backend systems, currently leading technical strategy for Spain’s largest Solana community. As a co-founder of Heavy Duty Builders he’s contributed to prominent Solana projects like Anchor and the widely used wallet-adapter, implementing low-level account coders and Angular wallet integrations that power developer tooling. He pairs hands-on engineering—shipping high-throughput platforms and accessibility tooling at enterprise firms—with product-minded architecture work for clients at CompuExpertos Icod. A mentor and community organizer, he’s known for translating blockchain complexity into developer-friendly libraries and for improving civic audit workflows tenfold in prior public-sector work. Based in Spain and grounded in a Computer Science degree from Universidad Simón Bolívar, he blends open-source impact with practical consulting to help teams ship reliable, user-focused blockchain products.
11 years of coding experience
9 years of employment as a software developer
Bachelor of Computer Science, Bachelor of Computer Science at Universidad Simón Bolívar
English, Spanish
Github Skills (14)
wallet10
typescript10
rust10
typescripts10
solana10
anchor10
blockchain10
typescript-types10
angular10
crypto9
cryptocurrency9
account-management9
smart-contracts9
react5
Programming languages (6)
Github contributions (5)
solana-foundation/anchor
Sep 2021 - Jun 2022
⚓ Solana Sealevel Framework
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 reviews, 5 commits, 5 PRs in 8 months
Contributions summary:Daniel primarily contributed to the Anchor framework, focusing on enhancing account handling and program interaction. They implemented static methods for account discriminators and extended filters for account retrieval. Additionally, the user set up a coder for the SystemProgram and implemented coders and IDLs for the Associated Token program, indicating a focus on Solana-based program development and integration.
coralsolanarustblockchainsealevel
anza-xyz/wallet-adapter
Aug 2021 - Jan 2022
Modular TypeScript wallet adapters and components for Solana applications.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:45 reviews, 33 commits, 4 PRs in 4 months
Contributions summary:Daniel primarily focused on building the Angular version of a Solana wallet adapter library. Their contributions involved creating Angular-specific components and services, including a `WalletStore` to manage wallet state and interactions. They added support for `signMessage` and included error handling throughout the Angular implementation. Furthermore, the user refactored and organized the code, and set up publishing configurations.
reactsolanablockchainwalletadapters
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