Joseph Miana

  • AI & Workflow Automation Specialist
  • Data Engineer
  • Software Developer
  • Web Developer

I build web applications, connect business systems, and automate the manual work in between, from the interface to the database to the AI workflow.

Based in
Taguig, Philippines
Education
BS Information Technology, STI College Global City
Cloud training
Google Cloud Platform, GCPinas Season 2

About

I'm a software developer based in Taguig, Philippines. I studied Information Technology at STI College Global City, and I work across web development, business software, AI automation, and data.

Most recently I led the ERPNext migration at Hightower Inc., customizing modules to fit internal processes and integrating them with the company's other systems. On my own time I build AI workflows, including a RAG-based purchase order automation that I built and deployed in three working days and a voice assistant that handles appointments around the clock.

I'm comfortable owning a project end to end: understanding the business need, building the application, connecting the systems around it, and keeping the data clean.

What I do

  • Software development

    Business software, APIs, and system integrations. At Hightower Inc. I customized ERPNext modules and connected them to external systems to cut manual data handling.

    Node.js, Express.js, Python, C#, Java, REST APIs, ERPNext, SAP Business One

  • Web development

    Responsive full-stack web apps with authentication, admin dashboards, and clear interfaces, like a MERN e-commerce platform that is live on Vercel.

    React.js, Next.js, Tailwind CSS, HTML5, CSS, Bootstrap, MongoDB, WordPress, Figma

  • AI & workflow automation

    Automations that replace manual handoffs: document intake, data extraction, AI assistants, and multi-app workflows built with Claude, Gemini, and OpenAI alongside n8n, Zapier, Make, and GoHighLevel.

    n8n, Zapier, Make, GoHighLevel, Airtable, Claude AI, Gemini, OpenAI, Vapi, RAG pipelines, OCR

  • Data engineering

    Pipelines and storage that feed reporting and automation: ETL workflows, SQL databases, and BigQuery on Google Cloud.

    BigQuery, SQL, PostgreSQL, MySQL, MariaDB, MongoDB, ETL workflows, Google Cloud Platform

Projects

Showing 5 of 5 projects

Purchase order to sales order automation

Independent project, AI and automation

An AI platform that takes purchase orders arriving by email, chat, or voice, extracts the data with OCR and RAG, validates it, and turns it into a sales order. Built and deployed in three working days.

Cut document processing time from hours to minutes.

  • Claude AI
  • RAG
  • n8n
  • Vapi
  • OCR
  • API integrations

AI voice appointment assistant

Independent project, AI and automation

A voice assistant that books, reschedules, and answers customer questions about appointments, connected to scheduling tools through automated workflows.

Handles routine appointment requests 24/7, reducing administrative workload.

  • Vapi
  • Gemini
  • n8n
  • JavaScript
  • API integrations

ERPNext migration and customization

Hightower Inc., May 2025 to May 2026

Led the move to ERPNext, customizing modules to fit internal business processes and building integrations with other systems across departments.

Replaced manual workflows with software-based processes, reducing errors and manual data handling.

  • ERPNext
  • React.js
  • Express.js
  • Node.js
  • MariaDB

E-commerce platform with admin dashboard

DICT MERN Stack Training, December 2024 to January 2025

A full-stack store with secure JWT authentication, complete CRUD for products, users, and orders, a persistent shopping cart, and a fully responsive interface. The admin dashboard manages inventory, accounts, and order processing. Frontend and backend are both deployed.

  • MongoDB
  • Express.js
  • React.js
  • Node.js
  • JWT
View live demo (opens in a new tab)

Employee information and payroll system

STI College Global City capstone, December 2023

A web-based system for WB Majesty that organizes employee data and payroll for both administrators and employees. It aims to improve efficiency, reduce errors, and streamline HR processes, with success measured through testing and user feedback.

  • Web application
  • HR
  • Payroll
  • Capstone

Tech stack

Languages
  • JavaScript
  • Python
  • Java
  • C#
  • SQL
Front end
  • React.js
  • Next.js
  • HTML5
  • CSS
  • Tailwind CSS
  • Bootstrap
  • WordPress
  • Figma
Back end
  • Node.js
  • Express.js
  • REST APIs
  • JSON
  • .NET Framework
  • MERN stack
  • JWT authentication
Databases and data
  • MongoDB
  • PostgreSQL
  • MySQL
  • MariaDB
  • MSSQL
  • BigQuery
  • ETL workflows
AI and automation
  • n8n
  • Zapier
  • Make
  • GoHighLevel
  • Airtable
  • Asana
  • Apollo
  • Claude AI
  • Gemini
  • OpenAI
  • Vapi
  • RAG pipelines
  • OCR and data extraction
Cloud and DevOps
  • Google Cloud Platform
  • Huawei Cloud
  • Docker
  • Git
  • Cloud APIs
ERP and business systems
  • ERPNext
  • SAP Business One
  • ERP implementations
  • Inventory management
  • E-commerce

Certifications

Associate Data Engineer, DataCamp. Hover or focus to flip and view the credential link.

Experience

  1. Software Developer

    Hightower Inc.

    • Led the migration and customization of ERPNext, turning business requirements into technical solutions that streamlined critical workflows.
    • Built and integrated software that connects multiple business systems, reducing manual data handling and improving data flow between departments.
    • Identified process inefficiencies and replaced manual workflows with automated, software-based processes to reduce errors and increase productivity.
    • Worked across the full stack with React.js, Express.js, Node.js, and MariaDB.
  2. MERN Stack Training

    Department of Information and Communications Technology (DICT)

    Completed the program by building a full-stack e-commerce platform with JWT authentication, an admin dashboard, and a deployed frontend and backend.

  3. BS Information Technology

    STI College Global City

    Graduated June 2024. Capstone: a web-based employee information and payroll system for WB Majesty.

  4. Google Cloud Platform, GCPinas Season 2

    Cloud training and credential

    Contributed to implementing Google Cloud Platform solutions, building skills in cloud architecture and collaborative problem-solving.

    View verified credential (opens in a new tab)

Get in touch

I'd like to hear from you!

Have a project, a role, or a process you want automated? Send me a message with the form.