Lead Software Engineer · Full Stack
8+ years delivering enterprise systems at scale — from a national energy platform serving millions of US customers to a SaaS POS product running at 300+ business locations. I architect frontend systems, own backend APIs, lead engineering teams, and ship production code. I don't just build features — I own outcomes.
Promoted to Lead Engineer within 12 months. Owned technical direction, client relationships, and delivery across 5+ simultaneous enterprise engagements — spanning e-commerce, LMS, compliance, and IoT. Sole frontend architect for a national energy billing and payments platform serving millions of customers across all 50 US states, integrating a complex Microsoft-led backend API with zero downtime on launch.
Delivered compliance-critical internal tooling for enterprise clients in regulated industries where security and audit trails were non-negotiable. Built an end-to-end Node.js/Express workflow engine with role-based access controls, passed security audit on first submission, and achieved zero regression rate on release.
CI/CDBuilt a SaaS POS platform from zero — no template, no playbook. Scaled from 0 to 300+ active business locations by architecting a fault-tolerant platform with real-time reporting and multi-location operational tooling. Led a team of up to 6 engineers across a cross-platform desktop app and React Native mobile experience.
Sole frontend architect for a national energy billing and payments platform serving millions of customers across all 50 US states. Integrated a complex Microsoft-led backend API with zero downtime on launch.
SaaS POS platform built from zero to 300+ active business locations. Fault-tolerant multi-tenant architecture, real-time inventory, cross-platform desktop + mobile with a shared codebase.
Event-driven Azure ingestion pipeline processing thousands of IoT sensor events per second — enabling real-time analytics dashboards for enterprise operations teams.
Available for senior / lead roles. Remote preferred; open to relocation. Especially interested in AI, data, and enterprise-scale product engineering. Bilingual — English & Spanish.
Send Antonio a direct message — he typically responds within 24 hours.
Thanks for reaching out. Antonio will get back to you at your email address shortly.