Ertem Biyik

Hi, I’m Ertem. I make apps for Apple platforms. Sometimes poke at what’s underneath them. In my free time I build consumer + AI side projects with friends, skate, play tennis, and nerd out on X

Now founding engineer at Pool — the fastest way to save anything with a screenshot. Before that, three years at VK shipping a superapp to 100M+ people

Experience

  1. Founding engineer at PoolThe fastest way to save anything with a screenshot2026 – now
  2. Founder at Bluerage SoftwarePersonal software from prompts, pivoted to declarative agents2025 – 2026
  3. Senior iOS engineer at VKSuperapp for 100M+ people. Mini Apps platform, navigation, infra, performance, AI tooling2022 – 2025
  4. iOS lecturer at ITMO UniversityTaught iOS development to the most-winning ICPC students2023 – 2024
  5. iOS engineer at SparrowcodeBuilt a comprehensive Ethereum library in Swift2022
  6. iOS engineer at Kultura Records StoreScan a record in the shop and listen to what is on it2021 – 2022

Side projects

  1. Swift AgentationPoint at an iOS view and tell a coding agent what to change2026
  2. iOS ResolutionEvery Apple display spec, one Raycast command away2026
  3. PuntoFixes text typed in the wrong keyboard layout, Latin ↔ Cyrillic2025
  4. HapticsReal-time touch between friends. Featured by Spotted in Prod2024
  5. RealityA persistent AR layer over the real world, anchored with geospatial tech2023 – 2024

Writing & talks

  1. I built a tool that lets you point at iOS views and tell AI what to change2026
  2. A modern iOS project setup in 15 steps2025
  3. CoreImagetalk2023
  4. Create a beautiful network layer with Swift2022

Connect