Leobel Alvarez
Senior Software Engineering at Crossmint
United States
Summary
👤
Senior🎓
Top SchoolLeobel Alvarez is a Senior Software Engineer with 10 years of experience building scalable, production-grade systems and leading development teams across startups and enterprise projects. As CTO and co-founder of a Web3 SaaS API-first startup, he designed high-availability NFT minting, IPFS gateways, real-time notifications and an on-edge payment gateway that processed thousands of requests per second while protecting over 5M ADA in client value. He combines full-stack expertise—from backend API architecture and serverless migrations to Android apps and SPA frontends—with strong operational focus on latency, availability and security. Past roles include driving performance improvements (40–60% faster response times), implementing CI-driven testing (80% coverage) and deploying ML models with SageMaker Autopilot for customer-facing predictions. Now at Crossmint, he continues to blend entrepreneurial product sense with hands-on engineering to deliver reliable, low-latency platforms. An early researcher in process-mining and search, he brings both academic rigor and a pragmatic, systems-first approach to solving complex engineering problems.
10 years of coding experience
8 years of employment as a software developer
Bachelor's Degree Computer Science, Bachelor's Degree Computer Science at University of Havana
Stackoverflow
1,668reputation
585kreached
66answers
6questions
Github Skills (92)
cardano10
wallet10
plutus10
javascript9
xrp9
api9
cryptocurrency9
blockchain9
ethereum9
locks9
json9
portal9
crypto8
ledger8
redlock8
Programming languages (8)
Github contributions (5)
leobel/WinLine98
Sep 2016 - Jun 2017
Contributions:155 commits, 70 pushes, 2 branches in 8 months
tango-crypto/cardano-wallet-js
Mar 2021 - Mar 2022
cardano-wallet javascript/typescript client
Contributions:127 commits, 1 PR, 71 pushes in 1 year
cardano-walletethereumjavascriptblockchainwallet
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