Thomas De Leon
Staff IOS Developer at Sysco
Seattle, Washington, United States
Summary
👤
Senior🎓
Top SchoolThomas De Leon is a Staff iOS Developer based in Seattle with a decade of hands-on experience building production mobile apps and SDKs for enterprises like Sysco, T-Mobile, LivePerson, and AT&T. He blends modern Swift tooling (SwiftUI, TCA, GRDB, Combine/RxSwift) with a deep legacy background in Objective-C and cross-platform build systems, enabling reliable delivery across consumer apps, internal tooling, and analytics SDKs. As a former co-owner of a small app studio, he understands productization end-to-end—shipping App Store apps such as CoinData and Seattle Bike Parking while also architecting reusable Swift Packages and on-device ML proofs of concept. He’s comfortable as both sole implementer and team lead, having driven projects from single-developer builds to coordinating launches and interviewing hires for mobile teams. Thomas pairs systems-level thinking (automated builds, CI, SDK design) with pragmatic UI work, often producing tooling to speed development and content authoring. His mix of consulting breadth and long-term product ownership makes him effective at bridging product, engineering, and operational concerns in mobile programs.
9 years of coding experience
13 years of employment as a software developer
BA E-Commerce & Information Systems, BA E-Commerce & Information Systems at Seattle University
Stackoverflow
1reputation
0reached
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0questions
Github Skills (27)
combine10
protocol-oriented9
networking9
rest9
rest-client9
tvos9
watchos9
swift9
swift-package8
server-side8
server-side-swift8
linux8
http8
windows8
vapor8
Programming languages (1)
Github contributions (5)
tdeleon/Relax
May 2020 - Feb 2023
Declaratively build and send client requests for REST APIs in Swift.
Contributions:17 releases, 116 commits, 48 PRs in 2 years 9 months
swift-librarynetworkingcombinerest-clientswift
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