Billie P Heidelberg
Available for New Opportunities
Full Stack Developer • Mobile Engineer
Full stack developer specialized in React, TypeScript, and Node.js with 7+ years of experience building scalable web and mobile applications. Expert in React Native, iOS/Android development, and cross-platform solutions.
Featured Projects
Innovative solutions built with modern technologies
Client
App Store
That Aisle Platform
Complete platform solution with React Native mobile app and React admin portal for hair product discovery and community engagement.
React Native
React
Firebase
Admin Portal
Featured
Smart Trader
AI-powered trading journal with analytics and performance insights for professional traders.
Next.js
TypeScript
Supabase
AI
Privacy-First
Baby Tracker
Privacy-first baby tracking app for parents with secure data storage and offline functionality.
React Native
TypeScript
Secure Storage
Offline
Social Platform
Simmr
Privacy-first social discovery platform for non-monogamous and polyamorous communities with real-time features.
React
TypeScript
Next.js
GraphQL
Venture
TOLO
Content discovery platform helping underground artists get discovered through fair algorithm-based ranking.
React Native
TypeScript
Supabase
Segment
E-commerce
AMIR BLAQ
Luxury fashion e-commerce platform with Next.js frontend and Django admin portal for content management.
Next.js
Django
PostgreSQL
AWS
Nonprofit
Love & Service 1st
Professional nonprofit landing page with community resources and mission-driven content sections.
Next.js
Tailwind CSS
Responsive
Skills & Expertise
Technologies and tools I work with to build exceptional digital experiences
Mobile Development
React Native5/5
iOS (Swift)4/5
Android (Kotlin)4/5
Flutter3/5
Frontend
React5/5
TypeScript5/5
Next.js5/5
Tailwind CSS4/5
Backend
Node.js5/5
Python4/5
PostgreSQL4/5
MongoDB3/5
Cloud & DevOps
AWS4/5
Docker4/5
Vercel5/5
CI/CD4/5
Other Skills
Git5/5
Agile4/5
Testing4/5
UI/UX3/5
Technical Achievements & Impact
Building great products and contributing to team success
11+
Technical Articles
Sharing knowledge with the developer community
7+
Years Building
Production applications people use daily
50K+
Lines of Code
Clean, tested, production-ready code
100%
Mobile-First
Cross-platform development expertise
Technical Contributions
- Built scalable systems serving 100K+ daily users
- Improved application performance by 60%
- Set up CI/CD pipelines, cut deployment time by 80%
Team Collaboration
- Collaborated in cross-functional teams of 5+ developers
- Helped mentor 15+ developers grow their skills
- Contributed to coding standards and best practices