Booking 2 new projects this month

Full Stack Developer building SaaS platforms, business systems & IoT solutions.

I help businesses ship websites, internal systems and SaaS products that actually move the numbers — fixed price, clear timeline, no agency overhead. 10+ platforms already live.

Fixed price · Clear timeline · You own the code
Mark Anthony Samson Donadillo — Web Systems & SaaS Developer
10+ live platforms
SaaS · Systems · IoT · Sites
5+
Years IT Experience
10+
Live Platforms
2
SaaS Products
6+
Business Websites
About

Practical systems that make businesses run better.

I'm a full-stack Information Technology graduate with nearly five years of IT support experience and practical experience building web-based systems, SaaS products, inventory management platforms, booking solutions, IoT projects with mobile and Arduino integration, games, business directories, operational dashboards, and commercial websites.

Core focus

I build practical digital systems that help businesses operate more efficiently, improve visibility, automate processes, manage information online, and connect hardware with software through IoT and mobile solutions.

What I build

Systems, platforms and the work that connects them.

SaaS Platforms

Web-based software products that solve real business problems.

Business Management Systems

Operational tools that organize how a business runs day to day.

Inventory & Sales Systems

Track stock, expenses, sales and profitability in one place.

Booking & Reservation Systems

Streamlined booking workflows and calendar management.

Business Directory Platforms

Help businesses become discoverable online.

Automation Solutions

Remove repetitive work through practical automation.

Commercial Websites

Brand-led websites for resorts, restaurants and local businesses.

IoT & Mobile Systems

Connected hardware and mobile applications for smart control.

Game Development

Interactive game projects with engaging mechanics and design.

Operational Dashboards

Clear views into the numbers that drive decisions.

Featured projects

Selected platforms, systems and client websites.

A mix of SaaS products I founded and developed, internal business systems, and commercial websites built for real clients.

Dating App
Loviq
Dating AppActive

Loviq

A trust-first dating app for people looking for something serious — verified profiles, smart compatibility-based matching, and real conversations instead of swiping.

SaaSWebMatching
SaaS Platform
HanapBiz
SaaS PlatformActive

HanapBiz

A Philippine business directory platform helping local businesses improve online visibility and become easier to discover online.

WebDatabaseSearch

Project demo available upon request

IoT SystemCompleted

IoT Smart Control System

An Internet of Things project connecting a mobile application to Arduino hardware, with a Firebase-backed website for remote monitoring and control. Built with MIT App Inventor for the mobile interface.

IoTArduinoFirebaseMIT App InventorMobile
Public Information
Bantay Lindol
Public InformationActive Development

Bantay Lindol

Earthquake awareness and information platform presenting Philippine seismic information in a simple, accessible format.

Public APIRealtime
Experience

Five years across IT support, operations & systems.

January 2024 – Present
Administrative Officer
GBU Corporation
  • Manage administrative operations for two commercial buildings
  • Maintain operational records and documentation
  • Support reporting and business processes
  • Improve workflow organization and efficiency
  • Assist in digital record management
2021 – Present
Operations Administrator
Resort Operations (Part-Time)
  • Manage guest inquiries from first contact to checkout
  • Coordinate reservations and booking schedules
  • Maintain booking calendars and resort operations
  • Develop websites and digital systems for resort businesses
  • Improve customer communication workflows
June 2019 – January 2024
IT Support Level II → Level I → IT Staff
Alorica Clark
  • Technical, hardware and software support
  • User account and network support
  • IT operations and incident resolution
  • Technical documentation
June 2018 – September 2018
Programmer Intern
Greecos IT Solutions
  • Software development and programming
  • Database support
  • Web development
Technical skills

The stack behind the systems.

Web & Full Stack Development
HTMLCSSJavaScriptPHPWordPressResponsive DesignFull Stack DevelopmentREST APIs
Database Technologies
MySQLFirebaseSQL Server
Systems Development
SaaS PlatformsInventory SystemsBooking SystemsAdmin DashboardsBusiness ManagementAutomation
Mobile & IoT
MIT App InventorArduinoIoT SystemsMobile App IntegrationHardware Control
IT Support
Hardware TroubleshootingSoftware SupportNetwork FundamentalsTechnical DocumentationUser Support
Game Development
Game DesignInteractive DevelopmentLogic ProgrammingUI/UX for Games
Modern Tools
LovableAI-Assisted DevelopmentGitHubWebsite DeploymentBusiness Automation
Education

Bachelor of Science in Information Technology

Mabalacat City College
Achievements
  • Outstanding I.T.E. Student Awardee
  • Most Innovative Capstone Project
  • Champion Best Presenter
  • President's Lister
  • Dean's Lister
  • Chairman's Lister
How we'll work together

A simple, honest process — no agency runaround.

From the first message to launch, you'll always know exactly where the project stands and what's coming next.

1. Discovery call

We talk about your business, the problem you're solving, and what success looks like — free, no pressure.

2. Scope & proposal

I send a clear plan: features, timeline, and a fixed price so you know exactly what you're getting.

3. Build & launch

I build in short cycles with previews you can click. We launch when it actually works — not when it's just done.

4. Support & grow

Optional ongoing support: updates, new features, fixes — so the system keeps making your business money.

Start a project

Pick the package that fits — I'll handle the rest.

Transparent starting prices, fixed scope per project, and zero pressure. If you're not sure what you need, just send a message and we'll figure it out together.

Most requested
Business Website
From ₱15,000

A professional website that turns visitors into customers — perfect for resorts, restaurants, auto, retail, and local brands.

  • Up to 6 pages
  • Mobile-first design
  • Contact & inquiry forms
  • Basic SEO setup
  • 1 month free support
Start my website
Most popular
Best ROI
Business System
From ₱35,000

Inventory, booking, sales, or admin systems that replace messy spreadsheets and save hours every week.

  • Custom workflow built around your business
  • Admin dashboard
  • Reports & exports
  • User accounts & roles
  • Training session included
Start my system
Founders & startups
SaaS / Custom Build
Custom quote

Launch your own SaaS product or a fully custom platform — from idea to live MVP, built to actually scale.

  • Product scoping & UX
  • Full-stack development
  • Database & auth
  • Payments integration
  • Launch & iteration
Pitch my idea

Not sure which one? Book a free 15-minute call and I'll recommend the right fit.

Services

How I can help your business.

01
Business Website Development

Professional websites for businesses, resorts, restaurants, automotive companies, and local brands.

02
Business Systems Development

Inventory systems, booking systems, dashboards, operational platforms, and administrative solutions.

03
SaaS Development

Web-based software products that solve business problems and improve efficiency.

04
Automation Solutions

Reduce repetitive work and improve workflows through technology and automation.

05
Website Maintenance

Updates, enhancements, troubleshooting, and ongoing support.

FAQ

The questions clients ask before saying yes.

Still have a question? Ask me directly
Most websites ship in 1–2 weeks. Business systems typically take 3–6 weeks depending on scope. SaaS MVPs run 6–12 weeks. You'll get a realistic timeline in the proposal — and I hit it.
Limited slots — 2 projects this month

Have an idea? Let's make it real this month.

Tell me what you're trying to build. I'll reply within 24 hours with honest feedback and a plan — even if we don't end up working together.

Contact

Let's build something useful.

Whether you need a website, business system, inventory platform, booking solution, or SaaS product — I'd be happy to discuss your project.

Philippines · Available worldwide
Resume
Start a project