Mark John Ustares
Flutter-Focused Full-Stack Developer
Flutter for Mobile, Nest.js for APIs, Next.js for Web
Startup-Minded Builder of Scalable Mobile & Web Apps
Get in TouchAbout Me
A passionate Full-Stack Developer with a strong focus on Flutter and modern web technologies. With 3+ years of hands-on experience, I specialize in crafting high-performance mobile applications and scalable web solutions that deliver exceptional user experiences.
My expertise spans the entire development stack — from building intuitive mobile interfaces with Flutter and BLoC, to developing dynamic web applications using Next.js and robust backend systems with NestJS. I have a proven track record of successfully delivering projects for startups and established companies, always focusing on clean, maintainable code and optimal performance.
While expanding my expertise in other development technologies, I maintain and strengthen my core foundation in Flutter development. I'm passionate about staying current with emerging technologies and best practices, ensuring that I can deliver cutting-edge solutions that meet modern business needs.
Experience
DNA Micro Software Inc.
Software Mobile Developer | May 2024 - May 2025
Technologies and Tools:
Frontend & Mobile Development: Flutter, React Native, Next.js, Swift
Responsibilities:
- Maintain and improve the performance of an existing mobile application
- Identify, troubleshoot, and resolve software bugs
- Develop and integrate new features to enhance user experience and app functionality
- Act as the point person for mobile development initiatives
Key Accomplishments:
- Developed a mobile diagnostic app for a client demonstration
- Implemented push notifications for both a web application and a mobile application
- Implemented CI/CD for the projects I maintained and developed
- Implemented app access security features: pincode, fingerprint, and facial authentication
Love Lighting (Utah, USA)
Fullstack Developer | Year 2023
Technologies and Tools:
Flutter, Firebase, ESP32, Arduino, Dart
Responsibilities:
- Collaborated directly with CEO on product requirements and updates
- Led end-to-end development of IoT lighting control solution
- Designed and implemented mobile and web interfaces
- Integrated ESP32 microcontroller with Firebase for real-time control
Key Accomplishments:
- Successfully delivered a complete IoT lighting control system
- Implemented robust real-time communication between devices
- Optimized system performance and user experience
Casual Carpool Mobile App
UI/UX Enhancement Project | Year 2022
Technologies and Tools:
Flutter, Material Design, Custom Animations
Responsibilities:
- Redesigned and enhanced the user interface for improved user experience
- Implemented modern UI components and custom animations
- Optimized app performance and responsiveness
Key Accomplishments:
- Improved user engagement metrics by 40%
- Reduced user interface response time by 30%
- Implemented intuitive navigation patterns and micro-interactions
Skills
Mobile
Flutter
Advanced
React Native
IntermediateLanguages
JavaScript
Advanced
Dart
Advanced
TypeScript
IntermediateFrontend
React
Intermediate
Next.js
IntermediateAPI Development
Nest.js
Intermediate
REST APIs
AdvancedDatabases
Firebase
Advanced
Supabase
IntermediateTools & Technologies
Git
Advanced
GitHub
Intermediate
GitLab
Intermediate
Jira
Intermediate
Vercel
IntermediateFeatured Projects
Pintch Point
A comprehensive platform for listing and managing rental properties, featuring role-based access control and secure authentication with Supabase.
FlutterNext.jsNest.jsSupabaseVercel
Online Palawan (OPAL)
An innovative online directory and marketplace that connects local businesses and services across Palawan.
Next.jsNest.jsSupabaseVercel
Palawan Buy and Sell
A province-wide e-commerce platform with responsive design and efficient database structure for product listings and transactions.
FlutterFirebaseFirestore