Full-Stack Software Engineer • React • React Native • Node.js • TypeScript • AI & Automation

I design and build production-ready software end-to-end, from clean UI/UX to scalable backend systems. I also specialize in automation and AI-powered workflows that reduce complexity and make technology more intuitive for real users. My background in Computing Science, Health Science, and Psychology strengthens how I design systems, solve problems, understand users, and ship reliable, human-centered products.

21k-line TypeScript system with multilingual UI, QR workflows, CSV ingestion, and 31 REST API endpoints. Designed for multi-location use and 130+ check-ins/day.

Tech: React · Node · Express · Supabase
🔗 Repo: https://github.com/lindseystead/foodbank-checkin-portfolio
🔗 Demo: https://foodbank-checkin-tan.vercel.app/

12k-line PHP/MySQL platform for adoption & rehoming with authentication, messaging, admin tools, MVC architecture, and 6+ security protections (CSRF/SQLi/XSS).

Tech: PHP · MySQL · MVC
🔗 Repo: https://github.com/lindseystead/pawsitive-placements-portfolio

17k-line full-stack automation system syncing leads to Google Sheets, Slack, and Gmail with AI enrichment, scoring, duplicate detection, and secure REST APIs.

Tech: React · Node · Express · Google APIs
🔗 Repo: https://github.com/lindseystead/SmartSheetConnect

25k+ LOC React Native wellness app with journaling, mood tracking, animations, biometric lock, and AI chatbot.

Tech: React Native · TypeScript · Firebase
🔗 Repo: https://github.com/lindseystead/ResilientHQ

LinkedIn: https://www.linkedin.com/in/lindseystead
GitHub: https://github.com/lindseystead
Open to: Full-stack, implementation, support engineering, and AI/automation roles.

Building production-ready solutions that make a difference.