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Janier Treto
Open to opportunitiesSenior Full Stack Developer
Senior full-stack developer and software architect delivering secure, high-performance web platforms.
United Arab EmiratesSenior Full Stack Developer at First Due
About
I’m a results-driven Full Stack Developer and Software Architect with 10+ years of experience designing and delivering secure, high-performance web applications across banking, e-commerce, and emergency services (Fire/EMS). In my work, I focus on measurable impact—improving query performance, strengthening reliability, and raising user satisfaction.
Most recently at First Due, I reduced database query execution time by 35% (35–40% faster critical report load times) and rebuilt emergency team UIs with Vue.js, delivering a 25% increase in user satisfaction and a 50% reduction in front-end errors. Earlier, at XETID, I designed security architecture using AlienVault USM and OWASP best practices, achieving zero data breaches over multiple years, and I eliminated production bugs by 60% by mentoring a team of 5 through code reviews and pair programming.
Experience
Senior Full Stack Developer
Improved critical report load times by reducing database query execution 35–40% through index tuning and N+1 query elimination in the fire/EMS records system. Redesigned emergency team UIs with Vue.js, increasing user satisfaction by 25% and cutting front-end errors by 50%.
Vue.JsQuery OptimizationIndexingN+1 Query EliminationAgile ScrumSaaS Development
Full Stack Developer
Designed security architecture for banking and e-commerce platforms using AlienVault USM and OWASP practices, maintaining zero data breaches over multiple years. Refactored Laravel components and optimized database indexes to improve key API response times by 30% and reduce production bugs by 60% through mentoring, code reviews, and pair programming.
AlienVaultOWASP Top 10LaravelAPI PerformanceSecurity Architecture
Education
AlienVault
Completed AlienVault USM for Security Engineers training in October 2016.
Completed AlienVault USM for Security Engineers training in October 2016.
Universidad de las Ciencias Informáticas (UCI)
Earned a B.Sc. in Computer Science Engineering from Universidad de las Ciencias Informáticas (UCI) in Havana, Cuba.