Jesse Collis
Senior Engineering Manager - Block Business Platform
Seattle, Washington, United States
Summary
👤
Senior🎓
Top SchoolJesse Collis is a seasoned engineering leader with 14 years of experience building customer-facing mobile products and scalable support platforms, currently managing managers for Block’s Business Platform in Seattle. He blends deep hands-on iOS engineering roots—demonstrated by open-source contributions to notable projects like AFNetworking and TTTAttributedLabel—with product obsessiveness and strong cross-continental team leadership across North America and Australia. Jesse has repeatedly scaled support experiences and internal operational tooling for tens of millions of users, including generative AI chat and dynamic in-app support surfaces for Cash App. A former CTO and co-founder, he brings entrepreneurial instincts and a pragmatic focus on architecture, code quality, and developer growth. Colleagues know him as a customer-focused, technically rigorous leader who still dives into platform-level code and compiler/compatibility issues when it matters.
14 years of coding experience
17 years of employment as a software developer
Bachelor Design (Multimedia Systems), Bachelor Design (Multimedia Systems) at RMIT University
Stackoverflow
12,420reputation
1.2mreached
176answers
7questions
xcode
top-5%
uiviewcontroller
top-1%
error-handling
top-5%
ios
top-1%
php
top-5%
laravel
top-5%
Github Skills (25)
code-optimization10
objective-c10
ios10
uiviewcontroller10
xcode10
optmization10
optimisation10
optimization10
datetime9
ui-design9
laravel9
iphone9
front-end-development9
php9
error-handling9
Programming languages (11)
Github contributions (5)
TTTAttributedLabel/TTTAttributedLabel
Nov 2013 - Apr 2014
A drop-in replacement for UILabel that supports attributes, data detectors, links, and more
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:10 commits in 4 months
Contributions summary:Jesse primarily focused on enhancing the TTTAttributedLabel library for iOS. Their contributions include implementing new methods for `CGFloat` calculations, ensuring proper 64-bit support, fixing warnings related to unused functions, and correcting encoding/decoding issues for `NSCoder`. Additionally, they addressed a bug related to `tintColorDidChange` and improved the overall functionality and robustness of the library.
drop-inuilabeldata-attributesdetectorsswift
AFNetworking/AFNetworking
Dec 2012 - Feb 2014
A delightful networking framework for iOS, macOS, watchOS, and tvOS.
Role in this project:Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:6 commits in 1 year 2 months
Contributions summary:Jesse primarily addressed compiler warnings and potential errors related to type conversions and selector matching within the AFNetworking framework. Their work focused on fixing -Wstrict-selector-match warnings, -Wsign-conversion issues, and -Wconversion warnings when encoding CGFloat. This involved modifying code in several key files, including AFHTTPRequestOperation.m, AFURLResponseSerialization.m, and AFURLConnectionOperation.m, demonstrating a focus on code quality and compatibility with different compiler versions and architectures. Furthermore, the user removed unnecessary imports in UIWebView+AFNetworking and UIImageView+AFNetworking headers.
tvosnetworkingswiftiosmac-catalyst
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