Hi, I'm

Jerwin Teñajura.

Full Stack Software Engineer with 5+ years of experience designing and developing web and mobile applications for businesses, organizations, and educational institutions. Founder of NetLynk PH and JSoft Solutions, with 40+ custom websites and management systems delivered as a solo developer.

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About

Passionate about creating reliable, user-friendly applications that solve real-world problems.

My Journey

Building software that works

I'm Jerwin Teñajura, a Full Stack Software Engineer with 5+ years of experience designing and developing web and mobile applications for businesses, organizations, and educational institutions.

Founder of NetLynk PH and JSoft Solutions, I've built 40+ custom websites and management systems as a solo developer—handling everything from planning and UI/UX design to development, testing, deployment, and ongoing maintenance.

I'm passionate about creating reliable, user-friendly applications that solve real-world problems and improve business operations. I graduated from Saint Columban College with a degree in BS Information Technology.

Education

Academic Background

2021–2025 Bachelor of Science in Information Technology Saint Columban College GPA 1.50 · Dean's Lister
2018–2021 Senior High School (STEM) Sibugay Technical Institute Inc. GPA 1.75 · With Honors · Best in Research

Expertise

Web Development Custom Systems Database Design API Integration Mobile Apps Maintenance & Support

Technologies I use

Tech Stack

Frontend, backend, databases, CMS, networking, tools, and hosting I use to ship complete solutions.

Frontend

React.js

Next.js

React Native

Flutter

HTML5

CSS3

JavaScript

TypeScript

Dart

Tailwind CSS

Bootstrap

Backend

Node.js

Express.js

Laravel

PHP

REST APIs

Database

MySQL

MongoDB

Firebase

CMS & Platforms

WordPress

Webflow

Wix

Networking

MikroTik RouterOS

Tools

Git

GitHub

VS Code

Cursor AI

Figma

Postman

XAMPP

Composer

npm

Vite

Hosting & Deployment

Linux

Hostinger

Cloudflare

Vercel

Netlify

Selected Work

Projects

42+ web apps and systems I've built—9 live and 33 private.

Live ISP Platform

NetLynk PH

Web platform for Filipino ISPs—customer management, billing, MikroTik integration, and network operations.

Laravel

React

MySQL

Mobile App Mobile App

NetLynk PH Mobile App

Native iOS & Android app for ISP owners and NOC teams—MikroTik provisioning, Xendit collections, Semaphore SMS, and field operations on the go.

Flutter

Dart

Firebase

Live Hospitality

Lei's Resort

Resort booking for Pagadian City—rooms, cottages, function halls, online reservations, payments, and guest feedback.

MNHS Attendance Monitoring System

QR-based check-in, automated reports, and DepEd-ready records for Midsalip National High School.

CUATAS Ilimitado Corporation

ISP management system: customer management, billing, and network monitoring.

Philippine People's Press

News platform with CMS, auth, and responsive design.

Severs Construction

Company site with portfolio, client management, and inquiry system.

DPWH E-Logbook

Digital logbook for attendance and activities with Firebase.

SSFO Admin System

Administrative portal for SSFO with document management.

React

Firebase

Tailwind

Private Management

Hotel Management System

Full hotel operations: reservations, check-in/out, billing, and room management.

Laravel

React

MySQL

Private Government

DENR Tree Certification and Registration

Tree certification and registration system for DENR compliance and tracking.

Next.js

Express

MySQL

Private Government

Tambulig Blotter Management System

Blotter and incident management for Tambulig LGU.

Laravel

React

MySQL

Private Healthcare

Dental Management System

Patient records, appointments, and dental clinic operations.

Next.js

Tailwind

Firebase

Private Events

Event Attendance Management System

Event registration, check-in, and attendance tracking.

Flutter

Dart

Firebase

Private Retail

Point of Sale System

Sales, inventory, receipts, and reporting for retail operations.

React

Express

MySQL

Private Business

Inventory System

Stock tracking, reorder alerts, and inventory reporting.

Laravel

React

MySQL

Private Government

DPWH PCMA

Project and contract management for DPWH.

Next.js

Laravel

MySQL

Private Business

Employee Management System

Employee records, attendance, leave, and payroll management for organizations.

React

Express

MongoDB

Private Government

Barangay Records Management System

Resident profiling, certificates, blotter logs, and barangay document requests.

Laravel

MySQL

Tailwind

Private Healthcare

Clinic Queue Management System

Patient queueing, triage, appointment slots, and clinic daily operations.

React

Express

MySQL

Private Education

School Library Management System

Book catalog, borrowing, returns, fines, and student library history.

Next.js

MySQL

Tailwind

Private Education

Scholarship Application Portal

Online scholarship forms, document uploads, screening, and award tracking.

Laravel

React

MySQL

Private Finance

Cooperative Membership System

Member registration, share capital, loans, dividends, and cooperative reports.

Laravel

MySQL

Tailwind

Private Healthcare

Pharmacy Inventory System

Medicine stock, expiry alerts, prescriptions, and sales for pharmacies.

React

Express

MySQL

Private Utilities

Water District Billing System

Meter reading, billing cycles, payments, and customer account management.

Laravel

React

MySQL

Private Government

Market Vendor Registration System

Stall assignments, vendor permits, fees, and public market administration.

Next.js

Express

MySQL

Private Logistics

Vehicle Fleet Management System

Vehicle records, maintenance logs, trip assignments, and fuel monitoring.

Laravel

MySQL

React

Private Healthcare

Barangay Health Center System

Patient visits, immunization records, maternal care, and health programs.

Next.js

MySQL

Tailwind

Private Hospitality

Catering Order Management System

Event menus, order intake, kitchen prep lists, and delivery scheduling.

React

Express

MongoDB

Private Business

Laundry Service Tracker

Pickup requests, wash status, pricing, and customer order notifications.

Flutter

Dart

Firebase

Private Government

Document Request Portal

Online LGU document requests, status tracking, and release scheduling.

Laravel

MySQL

Tailwind

Private Education

Student Grading System

Grade entry, report cards, subject averages, and parent access portal.

Next.js

Express

MySQL

Private Logistics

Warehouse Management System

Inbound/outbound tracking, bin locations, picking lists, and stock audits.

Laravel

React

MySQL

Private Hospitality

Restaurant Ordering System

Table orders, kitchen display, menu management, and daily sales reports.

React

Express

MongoDB

Private Real Estate

Property Rental Management System

Unit listings, tenant contracts, rent billing, and maintenance requests.

Laravel

MySQL

Tailwind

Private Business

Payroll Processing System

Salary computation, deductions, payslips, and monthly payroll exports.

Laravel

React

MySQL

Private Business

Asset Tracking System

Office asset registry, assignments, depreciation, and audit trails.

React

Express

MySQL

Private Education

Online Exam Platform

Timed quizzes, question banks, auto-grading, and student performance analytics.

Next.js

Firebase

Tailwind

Private Business

Complaint Ticketing System

Issue intake, assignment, SLA tracking, and resolution workflows.

Laravel

React

MySQL

Private Retail

E-Commerce Store Platform

Product catalog, cart checkout, order management, and seller dashboard.

React

Express

MongoDB

Private Business

Appointment Booking System

Service scheduling, calendar slots, reminders, and client booking history.

Next.js

MySQL

Tailwind

Private Security

Visitor Management System

Guest check-in, ID badges, host notifications, and visit logs.

Flutter

Firebase

Express

Career

Experience

Professional roles delivering complete software solutions from planning to maintenance.

2025 – Present

Founder & Lead Software Engineer

Cuatas Ilimitado Corporation

Founded NetLynk PH, an all-in-one platform that helps internet service providers manage their business.
Built and maintained the company's web and mobile applications as the sole software developer.
Worked directly with clients to understand their needs and turned their ideas into easy-to-use software.
Managed the entire development process, from planning and design to testing, deployment, and ongoing improvements.
Added new features, fixed bugs, and improved system performance based on client feedback.
Provided technical support, system maintenance, and regular updates to keep applications secure, reliable, and running smoothly.

2021 – Present

Founder & Lead Software Engineer

JSoft Solutions

Founded JSoft Solutions, providing custom websites and business systems for companies, organizations, and students.
Built 40+ websites and management systems as a solo developer, handling everything from planning to deployment.
Developed capstone and thesis systems for college students and custom software for businesses to improve their daily operations.
Worked closely with clients to understand their needs and turn their ideas into simple, reliable software.
Provided system updates, fixed issues, and offered ongoing technical support after project delivery.

2024 – 2025

Administrative Assistant

Social Services Facilitators Office (SSFO)

Managed office files, reports, and documents while keeping records accurate and organized.
Helped coordinate scholarship programs, office activities, and communication with staff and partner organizations.
Prepared reports, updated records, and provided administrative support to keep daily office work running smoothly.

Recognition

Achievements

Awards, certifications, and academic honors.

System Developer

Saint Columban College

2024

Recognized as System Developer for outstanding contribution as lead developer on the capstone project.

Web Developer

Department of Trade & Industry

2024

Recognized for outstanding participation as a Web Developer in partnership with DTI, Saint Columban College, and industry partners.

BYTE President

College of Computing Studies

2024

Served as President of the BYTE Organization, demonstrating leadership and commitment to the computing studies community.

Dean's Lister

Saint Columban College

2021–2025

Academic excellence with a GPA of 1.50 while completing Bachelor of Science in Information Technology.

Certificate of Recognition

Sibugay Technical Institute Inc.

2021

Graduated With Honors and Best in Research from the STEM senior high school program (GPA 1.75).

Computer Literacy

Department of Education | ALS

2017

Completed a basic computer literacy program under the Department of Education Alternative Learning System.

Credentials

Certificates

Gallery of certifications in IT and non-IT fields.

View all credentials on Google Drive

IT Field

Non-IT Field

What I offer

Services

Complete software solutions—from planning and UI/UX design to development, testing, deployment, and ongoing maintenance.

Web Development

Responsive websites and web apps with modern frontend and backend. Clean, maintainable code.

Custom Systems

Business and office systems: billing, inventory, CRM, and internal tools tailored to your workflow.

Database Design

Schema design, queries, and integration with MySQL, Firebase, or your preferred stack.

API Integration

REST APIs, third-party integrations, and backend services for your app or system.

Mobile Development

Cross-platform mobile apps with Flutter and React Native for iOS and Android.

Maintenance & Support

Updates, bug fixes, and ongoing support so your project stays secure and running smoothly.

How I work

Process

From planning and design to testing, deployment, and ongoing improvements.

Planning & Design

Understand your needs, plan the solution, and design a clear UI/UX before development begins.

Development

Build web and mobile applications with clean code, modern stacks, and regular progress updates.

Testing & Deployment

Test thoroughly, fix issues, and deploy so your system is secure, reliable, and ready for users.

Maintenance & Support

Ongoing updates, bug fixes, new features, and technical support to keep everything running smoothly.

Kind words

Testimonials

What clients say about working with me.

“The system he built for us exceeded expectations. Clean, fast, and easy for the team to use. We’re very satisfied.”

Client Private sector

“Professional from start to finish. Delivered on time and was responsive to feedback. Would hire again.”

Client Startup

“Our office needed a custom solution. He understood our workflow and delivered a system we use every day.”

Client Government office

Get in touch

Let’s Build Something

Have a project in mind? Tell me about your idea and timeline—I’ll get back within 24 hours.

Direct contact

Reach out

Prefer email or call? Use the details below—I typically reply within 24 hours.

Email jerwin.tenajura02@gmail.com
Phone +63 975 248 9509
GitHub github.com/WinDevPH
Location Pagadian City, Zamboanga del Sur