Damian Kołakowski

Warsaw, Masovian Voivodeship, Poland

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Summary

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Rockstar

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Top School

Damian Kołakowski is a mobile-focused software engineer with 14 years of experience building commercial iOS and Android products ranging from mPOS/NFC payment SDKs and mobile wallets to social clients, radio streaming apps, and data-sync tools. He has a strong track record of improving code quality and architecture at scale—owning legacy app modernization, reducing technical debt, and moving core screens to SwiftUI. Damian blends deep platform knowledge (battery and resource optimization, HCE, system-level Android) with a designer’s eye for polished UX and maintainable code. He’s an active open-source contributor (notably to a Swift HTTP server and an iOS hierarchy viewer) and has implemented innovative tooling like an SDK that snapshots native view hierarchies into HTML for rrweb. Based in Warsaw with an MSc in image processing, he thrives on pragmatic engineering trade-offs that keep apps fast, simple, and production-ready.

13 years of coding experience

18 years of employment as a software developer

MSc, Theory of steering, Image processing, MSc, Theory of steering, Image processing at Warsaw University of Technology

Github Skills (15)

mobile-application10

objective-c10

http10

uid10

swift10

ios10

websocket10

mobile-development10

front-end-development10

ui-design10

networking10

server-side9

coredata9

javascript4

html4

Programming languages (7)

C#ShellC++CVueObjective-CSwift

Github contributions (5)

httpswift/swifter

Jun 2014 - Oct 2018

Tiny http server engine written in Swift programming language.

Role in this project:

Back-end Developer

Contributions:375 commits, 114 PRs, 332 pushes in 4 years 5 months

Contributions summary:Damian made several commits focused on improving the core functionality of an HTTP server written in Swift. Their contributions included updates to the `HttpServer.swift`, `Socket.swift`, and `HttpParser.swift` files to enhance server stopping behavior, extend the request object with the client's IP address, and upgrade the server to support Swift 2 and Xcode 7. They also contributed to the implementation of the WebSocket protocol.

swift-programming-languagetinyswift-programmingswiftserver

damian-kolakowski/iOS-Hierarchy-Viewer

Jun 2012 - Aug 2014

iOS Hierarchy viewer - View and Coredata debugging made easy

Role in this project:

iOS Mobile Developer

Contributions:1 release, 71 commits, 2 PRs in 2 years 2 months

Contributions summary:Damian's commits primarily revolve around the development and maintenance of an iOS application, specifically an iOS hierarchy viewer. Their contributions include fixing crashes related to UI elements like `UITextView`, addressing issues with UI thread access, and rectifying KVC compliance problems. They added a feature to display the version number and port for the iOS Hierarchy Viewer, which indicates involvement in the project's overall setup. The user also added a web app display version of the iOS Hierarchy Viewer and made improvements to the Core Data viewer.

objective-ccoredatahierarchy-viewerloggingdebugging

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