How a TikTok Intern Saved $300K by Switching from Go to Rust 🚀💰

Nov 6, 2025 · 6 min read · In the fast-paced tech world, even small code changes can have massive impacts. ⚙️ This is the incredible story of how a TikTok intern took on a performance challenge, rewrote a critical part of TikTok’s payment system from Go to Rust, and ended up s...