About

Engineer first, developer always.

Portrait of Dave Mariano
Name
Dave Mariano
Role
Full-Stack Developer
Base
Philippines
Email
mrdavepmariano@gmail.com

Connect

I'm a self-taught developer based in the Philippines with three-plus years of shipping production web apps. I specialize in both frontend and backend — React, TanStack, and Next.js on the UI side, paired with Node, Express, and MongoDB on the server. TypeScript and Tailwind CSS are my daily tools, and I care deeply about performance, accessibility, and the kind of polish that makes users trust the product.

Before code I was a Registered Mechanical Engineer and Service Engineer at Koppel, Inc., running after-sales for HVAC systems for 1 year and 9 months. That job taught me to think in systems: parts, dependencies, failure modes, repeatable processes. I now apply the same discipline to component architecture, API design, state management, and deploys.

I work across the whole stack — interfaces, APIs, data models, and the infrastructure underneath. I self-host my own servers with Docker and Linux, and I'm building PHCloud, a small Docker-based PaaS, so I can ship client projects without ever leaving the stack I control.

Certifications

Skills

Tools I reach for.

Frontend
  • React
  • TypeScript
  • TanStack Start
  • Next.js
  • Tailwind CSS
Backend
  • Node.js
  • Express
  • MongoDB
  • PostgreSQL
  • REST APIs
Infra / DevOps
  • Docker
  • Traefik
  • Linux
  • Nginx
  • Self-hosting
Tools
  • Git
  • Vite
  • Figma
  • Zod
  • Playwright

Experience

Where I've worked.

Freelance Full-Stack Developer

Freelance · 2022 – Present · 4 yrs 5 mos · Remote

  • Built end-to-end web applications using React, TanStack, and Next.js on the frontend with Node, Express, and MongoDB on the backend.
  • Developed real-time dashboards, NFT games, and blockchain integrations — owning UI, APIs, and data models.
  • Collaborated with clients to deliver optimized, responsive, and scalable applications across the full stack.

Fuel Analyst

VICENTE T. LAO CONSTRUCTION · Nov 2024 – Feb 2025 · 4 mos · On-site

  • Monitored and analyzed fuel consumption across multiple project sites, ensuring efficient usage and addressing fuel-related issues.
  • Conducted testing for bunker and diesel fuel quality, and oversaw fuel usage for asphalt plant operations.
  • Prepared daily, weekly, and monthly fuel consumption reports and provided recommendations to optimize fuel efficiency and reduce overall consumption.

Service Engineer

Koppel Inc. · Feb 2023 – Oct 2024 · 1 yr 9 mos · On-site

  • Specialized in air conditioning and refrigeration systems across Mindanao.
  • Provided technical expertise, diagnosed and resolved issues, and ensured top-notch service delivery.
  • Supported installations, warranty claims, and service center training.

BS Mechanical Engineering

Ateneo de Davao University · Davao City, Philippines

  • Studied mechanical engineering and graduated as a Registered Mechanical Engineer (Philippines, 2022).
  • Built the analytical and systems-thinking foundation I now apply to architecting full-stack web applications.

Right now: shipping full-stack projects across React, TanStack, Next.js, and Node — looking for one more long-term client, and open to full-time roles.

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