Corey R.

I build web and mobile apps, connect business systems, and improve existing software. If you need a React or Next.js application, a React Native app, or a Python/API integration, I can help turn the requirements into working software with a clear handoff.

I'm a senior full-stack developer with 15+ years of experience and the founder of Rosecraft Studios. My work spans product interfaces, backend services, databases, automation, and technical assessments.

RECENT WORK
• Built a React Native leadership assessment app with Supabase, results dashboards, companion chat, subscription screens, and TestFlight delivery.
• Connected Procore construction data with Microsoft 365 workflows, including SharePoint, Outlook, reporting, and file routing.
• Modernized a Python platform with PostgreSQL integration, structured logging, redaction, rotation, and deployment validation.
• Independently assessed an AI/computer-vision platform's code, Docker/AWS deployment, reproducibility, and technical debt.
• Built a Python/FFmpeg pipeline for personalized event reels with CSV batch processing, photo layouts, transitions, and MP4 output.

WHAT YOU CAN HIRE ME FOR
New web and mobile features; API and database integrations; business-process automation; debugging and modernization; AI feature integration; and independent technical reviews. The portfolio below shows the scope and visuals from selected projects.

TECHNOLOGIES
React, Next.js, React Native, JavaScript, TypeScript, Node.js, Python, PHP, HTML5, and CSS; MySQL, PostgreSQL, Supabase, REST APIs, GraphQL, Docker, and AWS. I also work with Unity and Unreal Engine.

HOW I WORK
I clarify the scope and acceptance criteria, explain tradeoffs, share progress, test the implementation, and document the handoff. I can own a focused deliverable or collaborate with your existing team.

Send me your project goal, current stack, and the issue you want to solve through Upwork. I'll help you define a practical next step.