Phil Niedertscheider

Phil Niedertscheider

Senior Software Engineer

Phil's focus at Sentry is on Apple platforms, maintaining the Apple SDK, building mobile apps and crafting tools to make developers' lives easier. His passion is building software to solve problems and surprise with innovation.

Blogs Published by Phil Niedertscheider

Monitor your CI performance using Sentry

Monitor your CI performance using Sentry

We use GitHub workflows to keep our products at the quality we expect. By tracing those workflows with Sentry, we improved CI run time by 71%. Here's how you can too.

Phil Niedertscheider, Ricardo Oliveira, Armen Zambrano G. - November 10, 2026 · 4 min read

Building Type-Safe Metrics API in Swift: Part II

Building Type-Safe Metrics API in Swift: Part II

Replace Any with type-safe protocols, handle array conformance limitations, and future-proof your Swift enums.

Phil Niedertscheider - February 9, 2026 · 10 min read

Building Type-Safe Metrics API in Swift: Part I

Building Type-Safe Metrics API in Swift: Part I

Explore protocol extensions, enums with associated values, and ExpressibleByStringLiteral to build type-safe Swift APIs.

Phil Niedertscheider - February 9, 2026 · 6 min read

Reverse Engineering iOS to Fix SDK Crashes

Reverse Engineering iOS to Fix SDK Crashes

We reverse-engineered a private iOS framework to uncover why iPadOS 26 broke type casting in our SDK.

Phil Niedertscheider - December 3, 2025 · 6 min read

Boosting Session Replay performance on iOS with View Renderer V2

Product Updates

Boosting Session Replay performance on iOS with View Renderer V2

Boosting Session Replay speed on older iOS devices. See how Sentry’s custom renderer reduced frame drops and improved performance.

Phil Niedertscheider - August 6, 2025 · 14 min read