Welcome to my corner of the internet! 🌐 I’m Sheldon Wang – Staff iOS Engineer at Meta (working on Facebook & Instagram), former Snapchat architect (top-20 all-time committer 🏆), and your friendly neighborhood tech enthusiast who believes life’s too short for boring code and bad coffee. ☕️
With 10+ years building iOS apps for 800+ million users, I’ve learned a thing or two about mobile development, system architecture, and what it takes to ship world-class products. But this site isn’t just about tech – it’s about sharing everything I’m learning along the way.
🗺️ What You’ll Find Here
📔 Tech Blog Posts
Deep dives into iOS development, system design, and the art of building apps that millions love. From Swift concurrency patterns to performance optimization tips that actually work. Perfect for when you want to level up your mobile game!
💸 Investment & Finance
My thoughts on markets, money, and making sense of the economic chaos around us. Expect data-driven analysis mixed with just enough skepticism to keep things interesting. Warning: may contain unpopular opinions about crypto. 😏
🎮 Life & Interests
The fun stuff! Productivity hacks that don’t suck, life experiments worth trying, and whatever random rabbit holes I’ve fallen down lately. Think of it as the place where professional meets personal (and occasionally weird).
🛝 Playground
Interactive demos and experiments – because sometimes you need to see code in action rather than just read about it. Come here when you want to break things in a safe environment.
🏷️ Browse Posts by Tags
Explore all content organized by topics and themes. Perfect for finding posts on specific subjects like iOS development, finance strategies, or productivity tips.
🎯 Who Am I?
The Professional Side 💼
Current Role: Staff iOS Engineer at Meta (June 2025 - Present)
- Working on Facebook & Instagram iOS apps
- Focus: Feed Ads, Development Efficiency with AI, Cross-platform initiatives
- Building features used by billions daily
Previous: iOS Lead at Snap Inc. (March 2019 - June 2025)
- Led Memories Team serving 100M daily users
- Managed 10+ engineers, coordinated with 30+ teams
- Won Technical Excellence Award for company-wide impact
- Reduced video latency by 60%, boosted engagement significantly
- Led 200K+ line architecture refactor (Matcha project)
Before That: Senior iOS Engineer at BMW, Citi Mobile, and more
- Built connected car experiences for BMW & MINI
- Developed banking features for millions of Citi customers
- Always pushing boundaries of what mobile can do
The Real Me 🌟
I’m the guy who:
- Gets genuinely excited about elegant code architecture 🏗️
- Spends too much time optimizing workflows (guilty!) ⚡
- Thinks the best conversations happen over good food and bad puns 🍜
- Believes in sharing knowledge – hence this site! 📚
My Superpower 🦸
Taking complex technical concepts and making them actually understandable. Whether that’s explaining iOS memory management, system design patterns, or why your investment portfolio allocation might need rethinking.
I write code that scales to millions, and content that helps people level up. That’s the goal here.
🚀 What I’ve Been Up To
Recent Highlights:
- 🧠 Exploring AI-powered development workflows (Cursor CLI + Xcode integration)
- ⚛️ Following fusion energy breakthroughs (Princeton’s AI solving plasma control!)
- 💰 Analyzing October 2025 market volatility and investment strategies
- ⌚ Deep-diving into wearable health tech (Apple Watch, Oura Ring optimization)
- 🏀 Making bold NBA predictions (Celtics vs Nuggets Finals, anyone?)
Fun Stats:
- 📝 41,000+ words published just this month
- 🎮 7 interactive games built for the playground
- 📊 Top-20 all-time Snapchat iOS contributor
- 🏆 Meta Staff Engineer level achieved
💬 Let’s Connect
Found something useful? Disagree with my investment thesis? Built something cool inspired by a post? I’d love to hear about it!
Where to find me:
- 📧 Email: sheldon.wang7@yahoo.com
- 💼 LinkedIn: linkedin.com/in/sheldonengineering
- 💻 GitHub: github.com/sheldonwangrjt
- 🎥 YouTube: @iOSeTutorials
- 📄 Full Resume/CV or download DOCX
📊 By The Numbers
- 10+ years iOS development experience
- 800M+ users reached through apps I’ve built
- 4+ years leading engineering teams (up to 10 engineers)
- 200K+ lines refactored in major architecture projects
- 60% reduction in video latency (Snapchat Memories)
- 100M daily users served by features I’ve led
Thanks for stopping by – enjoy exploring! 🎉
P.S. If you’re wondering about the emojis everywhere: life’s more fun with a little visual flair. Fight me. 😄