PDF Toolkit
Developer ToolA free, privacy-first PDF toolkit for merging, splitting, and managing documents — files are processed securely without leaving them scattered across sketchy converter sites.
Full Stack Developer
Thirdy Gayares
I am a software engineer and full-stack developer based in the Philippines. I design and build backend systems, APIs, and developer tools — Python and FastAPI on the server, TypeScript with React and Next.js on the web — and I write tutorials about what I learn along the way.
01Tech Stack
Tools I build with
A deliberately small set of technologies I know deeply — Python, FastAPI, and PostgreSQL on the backend, TypeScript, React, and Next.js on the frontend, from API design to deployment.
Python
Primary backend language
Services, automation scripts, and data processing pipelines.
FastAPI
API framework
Production REST APIs with JWT auth, Alembic migrations, and PostgreSQL.
TypeScript
Typed JavaScript everywhere
Shared types across frontend and tooling for safer refactors.
React
UI library
Component-driven interfaces, hooks, and state management patterns.
Next.js
Web framework
App Router, server components, and SEO-focused content sites like this one.
PostgreSQL
Primary database
Schema design, views, functions, and triggers behind my APIs and tools.
Also working with
Supporting tools
AWS, Firebase, Java, Android, and Git/GitHub.
02Featured Projects
Products I run in production
Live tools with real users — designed, built, shipped, and maintained end to end.
ERD Toolkit
Developer ToolA tool for designing entity-relationship diagrams and planning database schemas — built for developers and students who want to model data before writing a single migration.
Batas PH
Civic PlatformA platform that makes Philippine laws easier to browse, search, and understand — bringing legislation closer to the people it governs.
03All Projects
Earlier work and collaborations
Hackathon builds, college projects, and client apps — where the production tools above started.
Thirdy Coffee Shop
My portfolio showcasing my coffee shop business, highlighting cozy atmosphere, fresh coffee, and excellent service.
Nexus App
The Nexus app is a mobile application we developed during the 5th CCIS Hackathon, held at the University of Makati (UMak). The app aims all coding projects, from individual to group submissions, are archived in a dedicated GitHub Organization.
Hwork App
HWork aims to simplify the process of finding and hiring freelancers, offering a user-friendly platform for both clients and service providers
Aistilo
Developed as a college thesis project, Aistilo reflects a commitment to cultural preservation and the promotion of Filipino artistry.
Herons Library App
Herons Library App, was our project during 3rd-year college for the Application Development and Software Engineering subject.
Adroit
The Adroit App was a project we developed during our second year in college,It aims to enable small businesses to efficiently manage sales, stocks, and customer interactions
JavaCinno
The Javacinno Project was a group effort created during the Joysis Batch 6 2023 (TESDA JAVA NCII), specifically aimed at building a Point of Sale (POS) system for coffee shops. It served as a learning opportunity to gain practical experience with Angular and Java Spring frameworks.
04Writing
Articles and tutorials
Step-by-step guides on FastAPI, PostgreSQL, React, and backend development.
React
Mar 31, 2025
How to Install and Set Up React with Vite and TypeScript (Step by Step)
This guide is perfect for beginners who want to start using React with TypeScript in a fast and efficient way. By the end, you will have a working project that is ready for development.
8 min read
Python
Apr 2, 2025
How to Build Your First FastAPI App – Step-by-Step
This guide is perfect for beginners who want to start using FastAPI to build modern Python APIs quickly and efficiently.
12 min read
PDF Toolkit
Jul 23, 2025
How to Merge PDF Free and Secure with Online Tools
This guide will show you how to merge PDFs quickly, securely, and completely free using our online PDF toolkit.
5 min read
Android
Jul 24, 2025
Bottom Navigation Bar Java Android Studio with Fragments
How to Make a Bottom Navigation Bar in Android Studio Using Java: A Simple Guide and Step by Step
15 min read
Android
Jul 5, 2025
Custom Recycler View in Android Java
This guide is designed to be simple and easy to follow, helping you step by step in understanding and implementing a custom Recycler View in your Android projects using Android Studio.
10 min read
Python
Nov 12, 2025
Why Python FastAPI Stands Out Over Other Frameworks
In the world of web development with Python, there are many popular frameworks: Django, Flask, FastAPI, Tornado, and more. Among these, FastAPI has become very popular in a short time. Many developers choose it for modern APIs, microservices, and high-performance systems
10 min read
05Contact
Let's work together
I take on backend systems, APIs, and full web platforms — from planning to deployment. If you have a project in mind or a question about one of my tools or articles, send a message and I will get back to you.
Send a Message