Full Stack Web Developer | Generative AI Engineer | IoT Developer
Bulacan
I am a Full-Stack Web Developer, Generative AI Engineer, and IoT Developer with over 7+ years of experience and a track record of delivering 100+ end-to-end projects. I specialize in taking systems from raw hardware signals and sensors, through secure cloud infrastructure, all the way to intuitive user interfaces. Recently, my focus has centered on building production-ready Generative AI solutions. I develop vision-language pipelines using GPT-4/5 vision, YOLO/Ultralytics, and OpenCV to automate visual inspection and real-time decision-making. My goal is to build tools that directly solve operational bottlenecks rather than just checking off feature requests. My core technical capabilities include: - Generative & Applied AI: LLM vision pipelines, prompt/cost tuning, OpenAI Platform, OpenCV, and YOLO/Ultralytics. - Full-Stack Web & Mobile: React, Node.js, PHP APIs, Flutter, PostgreSQL/MySQL, and AWS S3. - Embedded Systems & IoT: ESP32, Arduino, Raspberry Pi, and integrations via GSM, GPS, LoRa, and Zigbee. - Infrastructure & Security: Linux administration, Nginx, self-hosted deployment, and biometric access control systems As a Licensed Electronics Engineer, I do not just hand off isolated code blocks. Whether you need an industrial IoT deployment, a scalable React application, or an automated AI vision pipeline, I own the full lifecycle from firmware to the final UI. I am looking to partner on ethical, high-impact projects where correctness, security, and auditability are critical to success.
CRV Group of Ventures, full_time
Jan 2025 to Sep 2026
• Generative AI / Computer Vision solutions: designed and shipped detection pipelines combining OpenCV, YOLO/Ultralytics, and GPT-4/5 vision to automate tasks previously done by manual visual inspection — the client's actual bottleneck, not just the stated feature request. • End-to-end IoT deployments: delivered 50+ embedded systems (Raspberry Pi, ESP32, Arduino) wired into cloud backends and web/mobile interfaces for industrial field operations — owning firmware through UI, not handed-off in pieces. • Full-stack platforms: built React web/mobile front ends on PHP/Node.js APIs, backed by SQL databases and AWS S3 for cloud storage and media handling. • Security-sensitive systems: built biometric identity management for access control and attendance/identity tracking, where correctness and auditability matter as much as the feature working.
Erjem, freelance
May 2024 to Oct 2024
• Sole/lead developer on a survey-operations SaaS (React/SCSS, Node.js/Express, MySQL), owning the product from architecture through production support. • Infrastructure ownership: migrated the platform from Render.com to a self-hosted Linux setup (Surfer Cloud), configuring Nginx reverse proxy, TLS/SSL, and DNS — a deliberate trade of PaaS convenience for cost control and configuration ownership.
FabLAB Manila, full_time
Jan 2019 to Jan 2024
• Delivered 100+ embedded systems end-to-end — design, firmware, and deployment — across a 5-year tenure spanning prototyping through client-facing production support. • IoT monitoring & control: built sensor/actuator integrations on Raspberry Pi and Arduino for industrial automation, paired with desktop, web, and mobile interfaces for monitoring and remote control.