System Developer in Tayug, Pangasinan

Justin AngeloVillacorta

I build systems from end to end — mobile, web, and the API in between.

I take software projects from requirements and system design through development, deployment, and production support. I’m comfortable owning the full development lifecycle and staying involved after launch to improve, maintain, and scale the solution. Currently a Software Developer at Ridgeline Exteriors Inc., building CRM and ERP systems on a microservices architecture. Open to contract work and full-time opportunities.

View the work Download resume

projects built: 14
personal products: 3
live to visit: 2
certificates: 6

Fourteen projects, two of them open to visit

From a Wordle clone in 2023 to a freelance marketplace running today. One is client work and three are products built for potential clients; open any tile for the full write-up, including who built what.

live2026

FreelanceXchain

Capstone project · Project manager, built with one teammate

A freelance marketplace where the escrow is a smart contract.

Next.jsTypeScriptExpressNode.jsAppwriteSolidityHardhatethers.jsPolygonQwen3Stripe

Read it, then open the site

live2026

A Solidity 0.8.26 escrow deployed per contract, paying out on chain when a milestone is approved
AI skill matching and proposal drafting on Qwen3, offered as a Stripe-billed Pro tier
Skill-gap analysis against a freelancer’s verified portfolio
Didit KYC identity verification for both sides of a contract
On-chain reputation that stays with the freelancer, not the platform

Next.jsTypeScriptExpressNode.jsAppwriteSolidityHardhatethers.jsPolygonQwen3Stripe

Read it, then open the site

eApproveBa

2026

Resident feedback on local government projects, signed in with the eGovPH ID.

eGovPH single sign-on with a two-step token exchange that syncs the resident profile
LGU project listings with budget, timeline, category, status, and location

FlutterDartRiverpodDjangoPythonPostgreSQLJWTeGovPH APIs

Read the case study

Payroll PH

2026

Philippine payroll, computed and filed without a spreadsheet.

SSS, PhilHealth, Pag-IBIG, and withholding tax computed per cutoff
Multi-company management for accounting firms handling several payrolls

FlutterDartRiverpodSupabasePostgreSQL

Read the case study

Field Inspection Pro

2026

Inspections assigned by location, signed off on site.

Five-role access model enforced in Firestore security rules
Multi-stage inspection pipeline with location-based smart assignment

FlutterRiverpodNext.jsTypeScriptFirebaseFirestore

Read the case study

Learner Tracker

2026

Attendance, conduct, and commendations in one student record.

Daily attendance tracking across classes and year levels
Violation monitoring with severity classification

ReactTypeScriptNode.jsExpressSupabase

Read the case study

Quotio

live2025

Pricing and quotes for accounting practices, with the scope built in.

Reusable pricing templates with a minimum price per engagement
Up to four service levels presented side by side for comparison

ReactTypeScriptNode.jsExpressMongoDBStripeQuickBooks

Read it, then open the site

Cryphoria

2025

Accountancy where the ledger currency is crypto.

FlutterRiverpodReact+4

Read the case study

Boardmate

2025

Boarding house management both sides can see.

ReactTypeScriptNode.js+2

Read the case study

RaceConnect

2025

A social network built for motorsports fans.

KotlinJetpack ComposePHP+1

Read the case study

TechInfo

2024

PC building guidance with the troubleshooting attached.

KotlinLaravelPHP+1

Read the case study

Typeroo

2024

Guess the obscured word before the clock runs out.

Java

Read the case study

Legendary Motorsport

2024

A showroom for luxury supercars and sports bikes.

HTMLCSSJavaScript

Read the case study

Tic-Tac-Toe

2024

Tic-tac-toe, drawn and played in pygame.

PythonPygame

Read the case study

Wordle Clone

2023

A Wordle clone, and the first thing I ever built.

FlutterDart

Read the case study

Certificates and recognition

6 certificates from 2026 — cloud and AI courses, hands-on workshops, hackathons, and community events. Open any of them to see the original document.

eGovPH Hackathon 2026
Department of Information and Communications Technology (DICT)
July 22, 2026

AWS AI Practitioner Challenge
Udacity, part of Accenture
June 26, 2026

AWS Fundamentals
Zuitt Learning Institute
May 21, 2026

IBM Bob Hackathon
lablab.ai, part of NativelyAI
May 15–17, 2026

Build with AI 2026
Google Developer Groups Baguio
May 9, 2026

Meet At: AI Con X
AWS User Group Pangasinan
April 11, 2026

What I build with

Grouped by the job each tool does rather than by how well I know it — everything listed has shipped in one of the systems above.

Languages8: TypeScriptJavaScriptPythonDartJavaKotlinHTMLCSS
Frameworks8: Next.jsReactNode.jsExpressFastAPIDjangoFlutterRiverpod
Databases and backend platforms7: PostgreSQLMySQLMongoDBDynamoDBSupabaseFirebaseAppwrite
Cloud, deployment, and version control10: AWSDockerVercelRenderCloudflareHerokuPostmanSwagger/OpenAPIGitGitHub
Software architecture3: MicroservicesREST APIsClean Architecture
AI and LLMs8: RAGCAGLLM IntegrationIBM BobClaude CodeOpenAI CodexCursorOllama

How it went

From a Wordle clone in 2023 to client work and a developer role, with the workshops and hackathons that pushed each step.

working
shipped
completed
attended

2026

working
Software Developer
Ridgeline Exteriors Inc. · 7968-A Venture Place, Chilliwack, BC, Canada · August 2026 – present
Creating and building the company’s internal software, including CRM and ERP systems, on a microservices architecture.
shipped
FreelanceXchain
Capstone project · Project manager, built with one teammate — live at freelancexchain.works
A freelance marketplace where the escrow is a smart contract.
shipped
eApproveBa
Team build · eGovPH Hackathon 2026
Resident feedback on local government projects, signed in with the eGovPH ID.
shipped
Payroll PH
Personal project · built for potential clients
Philippine payroll, computed and filed without a spreadsheet.
shipped
Field Inspection Pro
Personal project · built for potential clients
Inspections assigned by location, signed off on site.
shipped
Learner Tracker
Personal project · built for potential clients
Attendance, conduct, and commendations in one student record.
completed
AWS AI Practitioner Challenge
Udacity, part of Accenture
Verified certificate awarded June 26.
completed
AWS Fundamentals, 27-hour elective
Zuitt Learning Institute
EC2, DynamoDB, S3, Lambda, API Gateway, and serverless deployment.
attended
Code & Conquer: Understanding Blockchain
System Developer Alliance Workshop, PHINMA UPang
The Sui ecosystem, the Move language, and smart contract development.
attended
Advancing the New Era of Agentic Coding
PHINMA UPang CITE Tech Summit
Agentic development workflows using Google Antigravity.
attended
IBM Bob Hackathon
lablab.ai
Built and submitted an AI/ML solution over a three-day build.
attended
Build with AI: multi-agent systems
GDG Baguio, University of the Cordilleras
Deploying multi-agent systems with ADK and Agent Engine.
attended
eGovPH Hackathon 2026
DICT · SMX Convention Center Aura, Taguig City
Participated July 21–22 and received a certificate of appreciation for contribution and active engagement.
attended
Meet At: AI Con X
AWS User Group Pangasinan
Community conference on applied AI and cloud architecture.

2025

shipped
Quotio
Client engagement — live at quotio.app
Pricing and quotes for accounting practices, with the scope built in.
shipped
Cryphoria
Team project · I built the Flutter mobile app
Accountancy where the ledger currency is crypto.
shipped
Boardmate
PHINMA University of Pangasinan
Boarding house management both sides can see.
shipped
RaceConnect
PHINMA University of Pangasinan
A social network built for motorsports fans.

2024

shipped
TechInfo
PHINMA University of Pangasinan
PC building guidance with the troubleshooting attached.
shipped
Typeroo
PHINMA University of Pangasinan
Guess the obscured word before the clock runs out.
shipped
Legendary Motorsport
PHINMA University of Pangasinan
A showroom for luxury supercars and sports bikes.
shipped
Tic-Tac-Toe
PHINMA University of Pangasinan
Tic-tac-toe, drawn and played in pygame.

2023

shipped
Wordle Clone
PHINMA University of Pangasinan
A Wordle clone, and the first thing I ever built.

Let’s build something

Tell me what you need and I’ll tell you honestly whether I’m the right person to build it.

email: justinangelovillacorta.dev@gmail.com
github: JustinVillacorta
linkedin: justinvillacorta
phone: +63 939 530 8249
based in: Tayug, Pangasinan, Philippines

Download resume

Fourteen projects, two of them open to visit

FreelanceXchain

eApproveBa

Payroll PH

Field Inspection Pro

Learner Tracker

Quotio

Cryphoria

Boardmate

RaceConnect

TechInfo

Typeroo

Legendary Motorsport

Tic-Tac-Toe

Wordle Clone

Certificates and recognition

eGovPH Hackathon 2026

AWS AI Practitioner Challenge

AWS Fundamentals

IBM Bob Hackathon

Build with AI 2026

Meet At: AI Con X

What I build with

How it went

Software Developer

FreelanceXchain

eApproveBa

Payroll PH

Field Inspection Pro

Learner Tracker

AWS AI Practitioner Challenge

AWS Fundamentals, 27-hour elective

Code & Conquer: Understanding Blockchain

Advancing the New Era of Agentic Coding

IBM Bob Hackathon

Build with AI: multi-agent systems

eGovPH Hackathon 2026

Meet At: AI Con X

Quotio

Cryphoria

Boardmate

RaceConnect

TechInfo

Typeroo

Legendary Motorsport

Tic-Tac-Toe

Wordle Clone

Let’s build something