Dawid Cieślak
Software Engineer at Instagram
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolDawid Cieślak is a London- and New York-based software engineer with eight years of experience building high-performance iOS and infrastructure systems at scale. He has shipped mobile features and observability tooling at SoundCloud, contributed to notifications performance and reliability at Meta, and now works on engineering at Instagram. Comfortable across product-facing mobile development and backend efficiency work, he has hands-on experience integrating industry standards like IAB Open Measurement and building experimentation and payments flows. A former co-founder who delivered multiple commercial apps from a tiny team, he combines startup pragmatism with large-company rigor. An Apple WWDC Scholar, Dawid blends deep technical craft in iOS with a focus on measurable developer velocity and system reliability. Despite a stealth-mode GitHub presence, his career shows a knack for surfacing hard-to-measure performance improvements that materially impact user experience.
8 years of coding experience
7 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Polish-Japanese Academy of Information Technology
Polish, English
Github Skills (18)
ios9
objective-c9
macos9
swift9
swiftui8
cocoapods8
api8
xcode8
sdk8
software-quality7
scale7
scalability7
carthage6
maccatalyst5
github4
Programming languages (1)
Github contributions (5)
cieslakdawid/Pulse
Apr 2018 - May 2018
Contributions:1 release, 51 commits, 20 pushes in 24 days
cieslakdawid/vImageExample
Sep 2017 - May 2018
Contributions:6 commits, 4 pushes, 1 branch in 8 months
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