Gitaek L.
Founding SWE | AI Coding Agent 7K+ & iOS Performance Engineer | Built LLM Fintech Platform to 6K+ Users | AR/ML Patent Holder
- Role
- Full Stack Software Engineering Fellow at Formation
- Location
- San Jose, CA, US
- LinkedIn followers
- 500 followers
About Gitaek L.
I build AI coding agents and iOS apps that ship faster, run cheaper, and feel magical to use.I’m Gitaek, a Full Stack & iOS Software Engineer and founding engineer at Snailer/FelixAI. I love turning messy, real-world problems into scalable, measurable systems especially in developer tools, fintech, and AR/ML. What I’m building now • Snailer / FelixAI – AI coding agents and developer tools used by 3K+ developers. • Architecting Rust-based CLI and iOS/Swift agents that orchestrate LLMs (Claude, GPT, etc.) to understand large codebases, automate build/test loops, and boost developer productivity. What I’ve shipped before • Built an LLM-powered financial services platform (Python/Django, Kafka, Kubernetes) that reached 6K+ users with 70% DAU growth and sub-200ms API latency. • Led development of the “GetStock” iOS app, improving performance monitoring by 40% and cutting deployment time by 30% through a modern CI/CD pipeline. • Developed AR-based food analysis technology, earning a US patent for an AR/ML algorithm that detects food position, weight, and size on-device. • Drove SDK and app performance across multiple products (Swift, RxSwift, Combine, gRPC, Redis, ElasticSearch), consistently reducing costs and improving reliability. What I’m excited about • Senior roles building AI developer tools, high-performance mobile apps, or LLM-powered platforms. • Collaborating with teams that care about performance, product polish, and real business impact — not just model hype. • Helping more engineers level up through system design content, mentoring, and hands-on tools like Snailer.If you’re working on AI devtools, fintech infra, or high-performance iOS products, I’d love to connect.
Experience
Full Stack Software Engineering Fellow
Aug 2023 — Present · San Francisco, CA, US
Accepted into Fellowship focused on professional development through personalized coaching fromseasoned top-tier software engineers from Apple, Google, Meta, Airbnb, OpenAI, etc.• Completing intensive training to master computer science through coding exercises through independent study, pair programming, and small mentor-led groups.• Studying system design fundamentals led by senior engineers from top companies, comparing and contrasting concepts in modern web-based applications.
Education
Sejong University
Bachelor's degree, Computer Engineering and Business Management
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