Hi, I'm Carlo Jay
Full Stack Web & Mobile Developer
I build scalable web and mobile experiences with React, Next.js, Flutter, Node.js, Laravel, NestJS, Python, and Django—from real-time MERN apps to Laravel and Nest microservices backed by MongoDB, PostgreSQL, and DynamoDB.
About Me
Full-stack engineer shipping web and mobile products with modern stacks and cloud data stores
I'm a dedicated full stack developer with over four years of experience building scalable web and mobile applications. I contract with Digigov.ai on Flutter, Laravel, NestJS, Next.js, and DynamoDB, and work full-time at Rohring Results on the MERN stack—both remote, shipping features across the stack with distributed teams.
My journey started with Python and Django at Geopro Global Solutions, where I focused on backends, API integration, and real-time systems. Since then I've deepened my work in React, TypeScript, and Next.js, and added mobile delivery with Flutter, PHP with Laravel, microservices with NestJS, and cloud-native persistence with DynamoDB.
Based in San Carlos City, Pangasinan, Philippines, I'm passionate about creating efficient, user-friendly applications that solve real-world problems. I enjoy collaborating with international teams and working across different time zones to deliver high-quality solutions on schedule.
Work Experience
My professional journey in full-stack development
Full Stack Developer
- •Ship cross-platform mobile applications using Flutter
- •Build and maintain Laravel backends and NestJS microservices
- •Develop the public web experience with Next.js
- •Work with DynamoDB for scalable, cloud-native data storage and access patterns
- •Collaborate with product and engineering to deliver end-to-end features across mobile, web, and APIs
Full Stack Web Developer (MERN Stack)
- •Develop and maintain full-stack web applications using MongoDB, Express, React, and Node.js
- •Design and implement scalable RESTful APIs to support dynamic web features
- •Build responsive and user-friendly UIs with React, TypeScript, and Ant Design
- •Enhance application performance by optimizing database queries and backend logic in MongoDB
- •Collaborate with international teams across different time zones to deliver high-quality features on schedule
- •Implement real-time features such as notifications and chat functionality using Socket.IO
- •Integrate third-party APIs (e.g., payment gateways, geolocation services) to extend product functionality
Python Full Stack Developer
- •Developed and maintained web applications using Django (backend) and React/Next.js (frontend)
- •Built RESTful and GraphQL APIs to support mobile and web applications, ensuring seamless integration
- •Implemented payment solutions (Paymaya, Paymongo, AnyonePay, AUB), currency converters, and Firebase services
- •Designed and deployed real-time communication features with WebSockets for system monitoring and notifications
- •Collaborated with QA and frontend teams to resolve bugs and ensure application stability
- •Proposed and implemented system improvements to enhance performance and maintainability
Python Developer Intern
- •Assisted in developing and testing Django applications under senior developer supervision
- •Wrote automation scripts and handled debugging tasks
- •Tested critical use cases and security-sensitive code components
- •Contributed to team discussions on improving code reliability and performance
Technical Skills
Core technologies I use across web, mobile, APIs, real-time systems, and data layers
Frontend
Backend
Databases
Real-Time & APIs
Tools & Others
What I Bring to the Table
Development Expertise
- • Web and mobile application delivery (React, Next.js, Flutter)
- • REST, GraphQL, and microservice-style backends (Node, Laravel, NestJS, Django)
- • Real-time systems (WebSockets, Socket.IO)
- • Relational, document, and cloud-native data (PostgreSQL, MongoDB, DynamoDB)
Collaboration & Process
- • International team collaboration
- • Agile development methodologies
- • Code review and quality assurance
- • Performance optimization
Featured Projects
A showcase of my recent work and side projects
Featured Project
E-Commerce Platform
Full-stack commerce platform with checkout, catalog, and admin analytics.
Key Features:
- •Real-time inventory updates
- •Payment gateway integrations
Featured Project
Real-Time Chat Feature
Modern chat with real-time messaging, file sharing, and groups.
Key Features:
- •Real-time messaging
- •File and image sharing
Featured Project
Stock Inventory Management System
Stock inventory management system with real-time updates and analytics.
Key Features:
- •Real-time updates
- •Analytics
Featured Project
Payment Gateway Integration
Multi-gateway payments with cards, wallets, and bank transfers.
Key Features:
- •Multiple payment methods
- •Secure transaction processing
Featured Project
Geolocation Services Integration
Location services with tracking, geofencing, and analytics.
Key Features:
- •Real-time location tracking
- •Geofencing capabilities
Featured Project
Social Media Platform
Social media platform with auth, account management, and real-time messaging.
Key Features:
- •Social media features
- •Token-based authentication
Interested in working together?
I'm always excited to work on new projects and collaborate with amazing people.
Let's Connect