Marleen Huigh

Full Stack Developer - "Aquarism Sports" (Fantasy Sports Platform)

Upwork • Freelance

Feb 2024 - Mar 2024 • 1 mo

The project was about building a fantasy sports platform where users could create teams, join contests, and compete using real player statistics. The founder wanted to launch before the football season but had no technical foundation. I stepped in to deliver a complete, production-ready platform. The Journey: • A fantasy sports founder found my Upwork profile and reached out • They needed a platform live before the football season started • Real-time sports data and complex scoring systems were required • They trusted me to build a scalable, high-performance web application The Experience: • Analyzed requirements and planned database architecture • Designed PostgreSQL database for players, teams, and contests • Built React/Next.js frontend with responsive Tailwind CSS • Developed Node.js/Express backend with REST API endpoints • Integrated sports APIs for fixtures, stats, and live scores • Implemented leaderboard and scoring calculation logic • Tested across devices and optimized performance What I Delivered: • Player selection and fantasy team creation workflows • Contest management with entry fees and prize distribution • Live leaderboard and real-time scoring updates • User authentication with profiles and team history • Admin dashboard for managing contests and content • Fully responsive design for desktop and mobile The Result: • Platform delivered in 8 months • 5,000+ registered users in the first season • 500+ active contests created weekly • Founder secured partnerships with sports leagues • 4.8-star user rating on platform reviews Tech Stack: React.js, Next.js, Node.js, Express.js, PostgreSQL, REST APIs, Tailwind CSS.

Full Stack Developer - "PooinTV" (Live Broadcasting Platform)

People Per Hour • Freelance

Dec 2023 - Feb 2024 • 2 mos

This project was about building a live streaming platform where creators could broadcast in real-time and audiences could interact instantly. The founder wanted to compete with major platforms but needed a scalable, feature-rich app. I stepped in to bring their vision to life. The Journey: • A social streaming founder found my profile on PeoplePerHour • They wanted a live broadcasting app with real-time engagement • Competing with major platforms required a robust, scalable solution • They trusted me to build a production-ready streaming application The Experience: • Planned technical architecture and user workflows • Built Flutter app with responsive interfaces for Android and iOS • Integrated Firebase for authentication and real-time database • Implemented WebSockets for live chat and real-time interactions • Configured cloud infrastructure for reliable video streaming • Tested streaming quality across devices and network conditions • Applied client feedback through iterative development cycles What I Delivered: • Live streaming with real-time video broadcasting • Audience chat and reaction features during streams • Creator dashboard with analytics and stream management • User authentication with profiles and follower system • Push notifications for live stream alerts • Responsive UI optimized for mobile viewing The Result: • Platform delivered in 1 months • 2,000+ downloads within the first two months • 200+ active creators broadcasting weekly • 4.6-star rating on Google Play Store • Founder said it exceeded their growth expectations Tech Stack: Flutter, Firebase, Node.js, REST APIs, WebSockets, cloud infrastructure.

Bubble.io Developer - "OzionHealth" (Healthcare Admin MVP)

LinkedIn • Freelance

Aug 2023 - Sep 2023 • 1 mo

A HealthTech founder connected with me on LinkedIn. They had a vision: streamline patient record management for small clinics. But they had no technical team and limited funding. They needed a functional MVP to validate their idea and attract investors. I stepped in to turn their concept into reality. What I Built: • Patient registration and electronic health records • Appointment scheduling with calendar integration • Secure user authentication with role-based access • Admin dashboard for clinic staff and physicians • Document upload and secure storage functionality • Responsive interface for desktop and mobile devices The Process: • Analyzed their requirements and user workflows • Designed scalable Bubble database with privacy rules • Built reusable UI components and responsive pages • Configured complex workflows for appointments and records • Integrated Twilio for appointment reminders via SMS • Tested thoroughly and applied client feedback iteratively Tech Stack: Bubble.io, API Connector, REST APIs, Twilio, JavaScript, responsive design.