Justin Ruiz

• Led end-to-end development of Sanamate, building AI-driven mental wellness web platform. • Architected scalable backend with multi-agent AI chat and long-term memory systems. • Implemented secure cloud infrastructure supporting global remote users with high availability. • Managed fully remote engineering team using async workflows, sprint planning, and continuous delivery. • Drove product strategy, feature roadmap, and performance optimization from MVP to growth stage.

• Led development of scalable payroll infrastructure at Deel supporting thousands of distributed companies worldwide. • Architected microservices handling cross-border compliance, tax calculations, and contractor payments across 100+ countries. • Optimized frontend React dashboards for HR teams, improving performance and user onboarding conversion. • Collaborated asynchronously with fully remote engineering teams across multiple time zones using Agile workflows. • Mentored engineers, conducted code reviews, and improved CI/CD pipelines for reliable global deployments.

• Built scalable React and PHP web features serving millions of users on Meta platforms. • Optimized frontend performance, reducing load times by 35% across high-traffic web applications. • Collaborated remotely with cross-functional teams using Agile methodologies and code reviews. • Designed internal web tools improving engineering productivity and deployment efficiency. • Led end-to-end feature delivery, ensuring reliability, security, and global scalability.