Hello, I'm

Ralph Jenrey

Full-Stack Developer

Crafting beautiful digital experiences through code.
Mobile apps, web platforms, and everything in between.

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ABOUT

Full-Stack Engineer & Technical Leader

I'm a full-stack engineer with 3+ years of experience building and scaling web and mobile applications in remote-first, cross-functional teams. Based in Cebu City, Philippines and open to remote opportunities worldwide.

Expert in Flutter, Next.js, TypeScript, and API-driven architectures. I specialize in integrating AI tools to accelerate development, testing, and documentation workflows. Proven leader with strong ownership mindset, delivering secure, scalable, and well-documented systems.

I've built everything from party booking platforms with real-time chat to AI-powered recipe tools with cloud functions, always focusing on performance, security, and exceptional user experiences.

Mobile Development

Flutter iOS & Android apps for enterprise and consumer platforms

Web Applications

Modern web apps with Next.js, React, and Angular architectures

Backend Systems

Scalable APIs with Node.js, Express, Fastify, Flask, and Laravel

AI Integration

OpenAI, Google Gemini, AWS Rekognition, and AI-assisted workflows

Admin Dashboards

Comprehensive management systems with real-time data sync

Technical Leadership

Mentoring developers, AGILE/Scrum, cross-functional collaboration

CAREER

Professional Experience

Lead Full-Stack Engineer

EZ Party PH

August 2025 – December 2025

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Remote

•Led distributed engineering team to deliver production-ready mobile platform
•Architected Flutter iOS/Android apps supporting merchant and consumer workflows
•Designed serverless microservices using Next.js for scalable backend operations
•Integrated PayMongo payment processing with secure transaction handling
•Implemented real-time chat and notifications using Fastify and WebSockets
•Deployed cloud infrastructure using AWS (S3, Beanstalk, Lightsail)
•Applied TDD methodologies and mentored junior developers

Full-Stack Developer

W3Systems

February 2025 – Present

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Remote

•Built and maintained scalable mobile applications using Flutter
•Migrated legacy systems from Phalcon PHP to Laravel and React.js microservices
•Designed and deployed CI/CD pipelines using GitHub Actions
•Integrated Google Gemini AI for automated product volume calculations
•Migrated MySQL databases to MongoDB for improved performance
•Implemented Redis for caching, Pub/Sub messaging, and real-time events
•Built scalable WebSocket notification systems using Fastify

Software Developer

Calcmenu Philippines

June 2024 – February 2025

•

Remote

•Developed secure RESTful APIs using Flask with JWT authentication
•Integrated OpenAI APIs for AI-driven technical support chatbots
•Designed and deployed Angular admin dashboards for chatbot management
•Implemented Azure Functions for automated AI-powered PDF generation
•Developed facial recognition attendance system using AWS Rekognition
•Optimized database performance using T-SQL, triggers, and stored procedures

Full-Stack Developer (Freelance)

FluxFusionDev

December 2023 – Present

•

Remote

•Designed and deployed microservice-based systems for education, retail, and SaaS
•Built real-time chat applications using Firebase, Node.js, Flutter, and WebSockets
•Developed facial recognition attendance systems with AWS Rekognition
•Migrated legacy Java mobile applications to Flutter
•Led small teams in delivering SaaS products under tight deadlines