At IILICEntrepriseSL, I designed and built a telecom and financial platform from a business concept and basic mockups. I developed its Python/Django backend and React/TypeScript frontend, including PostgreSQL models for balances, commissions, and transactional operations.
I integrated Revolut payments with stored-card payments, idempotent refunds, and signed webhooks. I also protected financial operations with atomic transactions and row-level locking, and implemented JWT authentication, TOTP, and OCR/MRZ identity verification.
At TexigInvestorInc., I architected and developed a large Django production platform with 150+ data models and hundreds of users. I built asynchronous systems with Celery and Redis, trading integrations for Binance, KuCoin, and MEXC, and real-time features using WebSockets and PostgreSQL/PostGIS.
At Unión de Ferrocarriles de Cuba, I led a software and infrastructure team of 10–15 people. We migrated all services to a high-availability Proxmox VE cluster, achieving 99.95% availability with zero critical downtime over 24 months. I also have experience leading technical planning, code reviews, and production releases.
