Michael Candido
Verified Expert in Engineering
Blockchain Developer
Seattle, WA, United States
Toptal member since July 9, 2024
Michael is a former principal engineer at Microsoft Azure and lead engineer at Crossmint, a top-tier blockchain startup. He has proven world-class expertise in Web3, cloud computing, and distributed systems and extensive experience building and scaling services from the ground up that serve 100+ million requests per day. Michael is comfortable taking on the toughest technical challenges and building scalable Web3 apps, back ends, APIs, and web applications on par with top-tier tech companies.
Portfolio
Experience
- TypeScript - 7 years
- Node.js - 7 years
- Web3 - 5 years
- Solidity - 5 years
- Ethereum Virtual Machine (EVM) - 5 years
- Amazon Web Services (AWS) - 5 years
- Non-fungible Tokens (NFT) - 4 years
- Solana - 3 years
Preferred Environment
TypeScript, Node.js, Python, Solidity, React, JavaScript, Ethereum Virtual Machine (EVM), Web3, Solana, C#
The most amazing...
...systems I've built are the globally scalable back end for Azure Functions and the distributed EVM transaction service that powers Crossmint.
Work Experience
Lead Engineer
Crossmint
- Headed an engineering team of five people for Crossmint's flagship non-fungible token (NFT) checkout product.
- Built Crossmint's minting infrastructure, a horizontally scalable transaction service, to handle all Crossmint Ethereum Virtual Machine (EVM) blockchain, resulting in 10 times throughput and 95% fewer on-call incidents.
- Collaborated with top marketplaces and launchpads, including Magic Eden, Manifold, and Tensor, to integrate Crossmint's product across Ethereum, Polygon, Arbitrum, Optimism, Solana, BSC, Cardano, and Sui.
- Migrated Crossmint's back end from Vercel to Azure, cutting site load times by 75%, ending cold starts, and reducing compute costs tenfold.
- Established a private localnet infrastructure for development environments, quintupling test run speed in CI and eliminating recurrent monthly CI disruptions.
Principal Software Engineering Manager
Microsoft
- Built and launched an enterprise business platform, App Service Environment, and swiftly iterated and grew the customer base, making it a major growth and revenue driver for Azure App Service.
- Managed spot scheduling, minimizing the cost of serverless executions without a loss of availability by distributing functions over spot compute in multi-cluster arrangements.
- Shipped a regional disaster recovery system for Azure App Service, replicating data cross-region for over one million apps. We used it later that year to recover data in production during a prominent Washington, DC, outage.
Experience
Crossmint NFT Minting API
https://www.crossmint.com/products/nft-minting-apiAzure Functions
https://azure.microsoft.com/en-us/products/functions/Azure App Service Environment
https://learn.microsoft.com/en-us/azure/app-service/environment/overviewEducation
Bachelor's Degree in Computer Science
University of Illinois Urbana-Champaign - Champaign, IL, USA
Skills
Libraries/APIs
Vue, React, Node.js
Languages
TypeScript, C#, Solidity, JavaScript, Python
Frameworks
Next.js, NestJS
Platforms
Azure, Amazon Web Services (AWS), Linux
Storage
PostgreSQL, MySQL, MongoDB
Other
Ethers.js, Cloud Computing, Ethereum Virtual Machine (EVM), Web3, Non-fungible Tokens (NFT), Solana, Polygon
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