Lead iOS Engineer with team lead experience based in Istanbul, building high-quality mobile products and SDKs.

Over the past 14+ years I've worked on fintech, payments, sports betting, crypto wallets and consumer apps used by millions of users. I enjoy designing scalable architectures, leading engineering teams, mentoring developers, and turning complex product ideas into polished mobile experiences.

• 📱 iOS — Swift, SwiftUI, UIKit, Combine, Swift Concurrency
• 🤖 Android — Kotlin, Jetpack Compose
• 🏗️ Architecture — MVVM, TCA, Redux, Modular SDKs, SOLID
• ⚙️ DevOps — Fastlane, CI/CD, Firebase, App Store Connect
• 🤖 AI-Assisted Development — Claude Code, OpenAI Codex, Cursor

• 🚀 Mobile Engineering Manager & iOS Tech Lead @ OBSS
• 💳 Building payment SDKs and merchant integrations
• 👥 Leading cross-functional mobile teams
• 🧩 Building developer tools, reusable architectures and open-source projects

• Mobile Architecture
• SDK Development
• Agentic AI & Developer Tooling
• Crypto & Web3
• Performance Optimization

🌐 LinkedIn: https://linkedin.com/in/ulassancak

📫 Email: ulas.sancak@hotmail.com.tr