Senior Full Stack & AI Automation Engineer with 10 years of experience building SaaS, travel, and healthcare platforms for high-volume production environments. BSc Computer Science, National University of Singapore. Based in Pagadian City, Zamboanga del Sur.
Results I've delivered:
• Led a SaaS compliance platform serving 18,000+ daily users, automating regulatory reporting for global financial operations
• Improved system throughput by 30% while maintaining 99.9% uptime using microservices, Kafka, and Redis caching
• Reduced dashboard load times by 50% through React/Next.js optimization and PostgreSQL query tuning
• Cut system downtime by 40% with Docker, Kubernetes, Terraform, Jenkins, and automated CI/CD
• Integrated Stripe and PayPal processing 10,000+ monthly transactions, reducing payment errors by 15%
• Automated reporting and data workflows that saved 20+ hours of manual work per week
• Built a travel booking platform handling 8,000+ daily bookings, increasing retention by 28% and booking completion by 22%
• Scaled REST/GraphQL APIs to 100,000+ monthly requests at 99.8% uptime; reduced server response times by 35%
• Raised automated test coverage to 90% and reduced post-release bugs by 25%
• Improved healthcare booking efficiency by 20% for 5,000+ monthly users; cut processing errors by 15%
Tech stack:
Frontend - React, Next.js, Vue.js, Angular, React Native, TypeScript, Redux Toolkit, Tailwind CSS, Material UI
Backend - Python (Django, Flask, FastAPI), Node.js/Express, NestJS, PHP (Laravel, Symfony), REST, GraphQL, microservices
AI & LLM - OpenAI API, Claude API, Gemini API, LangChain, RAG pipelines, prompt engineering, PyTorch, YOLOv5/v8, OpenCV
Automation - n8n (self-hosted), -----------, Zapier, GoHighLevel (HighLevel API v2), webhook ingestion, retries, dead-letter queues, idempotency safeguards
Data & messaging - PostgreSQL, MySQL, MongoDB, Redis, Apache Kafka, RabbitMQ, ETL pipelines
Cloud & DevOps - AWS (EC2, Lambda, S3, RDS), GCP, Azure, Docker, Kubernetes, Terraform, Jenkins, GitHub Actions, Nginx, Ubuntu
Security - OAuth 2.0, JWT, RBAC, rate limiting, PCI-DSS and HIPAA-aligned practices
I work end to end: architecture, implementation, testing, deployment, and production support. Comfortable in Agile/Scrum teams, async communication, and overlapping with US or EU hours. Open to full-time, part-time, or project-based work.
