Huascar Oña

Senior Software Engineer with 10+ years of experience building PHP/Laravel SaaS products and full-stack applications with Vue and TypeScript. Strong background in REST APIs, PostgreSQL/MySQL, third-party integrations, Docker, and production systems. Experienced integrating OpenAI-powered features and using AI-assisted engineering workflows while maintaining strong ownership, testing, and code quality.

Senior Software Engineer at Transax (2023-01 – Present)

• Build and maintain SaaS products used by 500+ dealerships across North America using PHP/Laravel, Vue/Nuxt, TypeScript, PostgreSQL, and Docker.
• Design and consume REST APIs and build third-party integrations, including OpenAI-powered functionality and business-critical external services.
• Designed resilient asynchronous workflows with bounded retries, exponential backoff, idempotency, and race-condition safeguards for production integrations.
• Built embedded Vue/TypeScript widgets with dynamic DOM integration, event-driven communication, and safeguards against duplicate initialization.
• Diagnose production incidents across frontend, backend, database, and integration layers, tracing root causes and implementing tested preventive fixes.

Senior Software Engineer at TrailerCentral (2021-01 – 2023-12)

• Developed PHP/Laravel dealership software and embedded JavaScript widgets backed by MySQL for a platform serving hundreds of dealerships.
• Built lead-generation, financing, contact, and inventory-management workflows and integrated external services through REST APIs.
• Investigated production defects across application and integration layers, traced root causes, and delivered reliable fixes without disrupting active dealership workflows.

Senior Full-Stack Software Developer at Freelance (2019-01 – 2023-12)

• Designed and delivered custom web applications, REST APIs, responsive interfaces, and cloud integrations for client projects.
• Worked directly with clients to turn business requirements into technical plans, ship applications to production, and maintain them as requirements evolved.

Software Developer at FanMaker (2017-01 – 2019-12)

• Implemented mobile and web features, Bluetooth beacon integrations, and application performance optimizations.

Web Developer at GolfRivals (2015-01 – 2017-12)

• Built interactive web applications and a digital golf scoring platform using modern web fundamentals.

Bachelor's Degree in Computer Engineering – UNAM (2010)

Bachelor's Degree in Mechatronics Engineering – UADY (2006)