Frederick Pietschmann
Software Engineer
Aachen, North Rhine-Westphalia, Germany
Summary
🤩
Rockstar🎓
Top SchoolFrederick Pietschmann is a software engineer with a decade of experience, currently at Qualcomm and based in Aachen, Germany. He specializes in iOS/Swift development, automation, and build/release engineering, with notable open-source contributions to widely used tools like SwiftGen and SwiftLint. Frederick focuses on improving tooling and code quality—refining lint integrations, test fixtures, and automation scripts—to make large codebases safer and easier to maintain. His work on SFSafeSymbols and BartyCrouch shows practical expertise in asset generation, localization, and macOS/iOS compatibility. An avid refactorer, he combines hands-on engineering with a strong emphasis on maintainability and testing. He also brings DSP/spatial audio domain experience from earlier roles, giving him a multidisciplinary edge.
10 years of coding experience
RWTH Aachen University
German, English
Stackoverflow
8,764reputation
1.2mreached
71answers
20questions
testing
top-5%
watchkit
top-5%
apple-push-notifications
top-5%
ios-simulator
top-5%
swift
top-1%
swiftui
top-1%
Github Skills (46)
github-ci10
swiftlint10
ios10
translation10
scripting10
testing10
html-template10
software-quality10
python-templates10
xcode10
code-templates10
apptemplates10
localization10
script10
sh10
Programming languages (7)
Github contributions (5)
SFSafeSymbols/SFSafeSymbols
Jun 2019 - Jan 2023
Safely access Apple's SF Symbols using static typing
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:27 releases, 34 reviews, 193 commits in 3 years 7 months
Contributions summary:Frederick primarily focused on creating and maintaining an iOS framework for safely accessing Apple's SF Symbols using Swift. They implemented an icon extraction script and a helper to generate a Swift enum representing the SF Symbols. Additionally, the user addressed macOS compatibility and refactored the codebase by dropping macOS support, adding documentation, writing tests, and fixing build errors, and updating the symbols library.
static-typingsfsymbolssymbolsswiftios
realm/SwiftLint
Mar 2018 - Feb 2021
A tool to enforce Swift style and conventions.
Role in this project:Software Engineer (focused on Swift development and linting)
Software Engineer (focused on Swift development and linting)Contributions:5 reviews, 62 commits, 20 PRs in 3 years
Contributions summary:Frederick primarily contributed to improving the `swiftlint` tool, focusing on code quality and maintainability. Their work involved adjusting the architecture of the "all" keyword for disabling and enabling rules, along with improvements to related code. They implemented and extended tests to validate the "all" keyword's behavior across different scenarios. Furthermore, the user addressed issues and added tests for the `superfluous_disable_command` rule.
linterswift-package-managerbazellintingcode-quality
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