Senior Software Engineer · Product Builder
I build things people actually use.
My name is Viraj Puri, I'm a senior engineer at Meta building consumer products used by tens of millions. I lead teams, ship fast, and care about getting the details right.
5+
years in industry
50M+
users reached
5+
product areas led
01. About
About Me
I'm a Senior Software Engineer at Meta who builds at the intersection of product and AI. Five years shipping consumer products used by tens of millions — Threads, Messenger, Meta AI — owning everything from technical design to launch.
On the AI side, I work across the full stack: LLM fine-tuning, RAG pipelines, computer vision, NLP, MLOps, and model deployment in production environments. Python, PyTorch, TensorFlow, vector databases. On the product side, I bring the same rigor to iOS engineering and system architecture.
I lead teams, work closely with designers and PMs, and don't believe in shipping something I'm not proud of.
Carnegie Mellon University grad in CS + Statistics/ML. Always building, always thinking about what's next.
Technologies
- ◆Swift
- ◆SwiftUI
- ◆Objective-C
- ◆Python
- ◆JavaScript
- ◆React
- ◆Java
- ◆SQL
- ◆Claude API
- ◆Gemini API
- ◆LangChain
- ◆RAG
- ◆Core ML
- ◆Firebase
- ◆MongoDB
- ◆System Design
- ◆Product Strategy
02. Experience
Where I've Worked
Senior Software Engineer @ Meta
Jan 2025 — Present
Led end-to-end delivery of Creator Insights on Threads — an analytics feature used by millions of monthly active users — coordinating across engineering, design, and product. Shipped two other highly visible features that each reached 1M+ views on the Threads platform and earned recognition from senior leadership. Led the iOS codebase migration from Swift to SwiftUI to improve performance and accessibility.
03. Projects
Things I've Built
AI Studio
Lead iOS engineer for Meta's platform that lets anyone create and chat with AI characters. Grew to millions of monthly active users. Led a team of 4, owned the full iOS experience from concept to launch.
Creator Insights — Threads
Analytics dashboard for creators on Threads, giving them visibility into how their content performs. Shipped to >50M monthly active users and became the foundation for several follow-on product investments.
Reorder Media & Edit Message
Two quality-of-life features on Threads — reordering photos in a post and editing sent messages. Together they reached >2M+ views and were highlighted by Threads leadership as standout examples of craft.
GroomZoom
Mobile app built during COVID-19 to connect people with barbers for at-home haircuts. Full end-to-end build: location-based search, booking flow, camera integration, and a real-time backend.
04. Contact
Get In Touch
Open to interesting problems, collaborations, and conversations. Reach out however feels natural.