Carlos Nieto
IOS Senior Developer at Capgemini
Madrid, Community of Madrid, Spain
Summary
🤩
Rockstar🎓
Top SchoolCarlos Nieto is an experienced Apple platforms engineer with 25 years writing software and 13 years focused on iOS, shipping production apps for brands like Mango, NH Hotels and Iberdrola. He bridges deep platform expertise in Objective‑C/Swift, SwiftUI and Swift Concurrency with pragmatic architecture (MVVM/VIPER, SPM modularization, CI/CD) and performance-driven delivery. Recently he pivoted into on-device AI engineering—building a bilingual ES/EN semantic+lexical retrieval search with NLContextualEmbedding, sqlite-vec vector store and Foundation Models for private, offline inference. Autodidact by background, he pairs hands‑on system design (MCP protocol, TypeScript/Node tooling) with practical contributions to open-source iOS tooling such as RxSwift examples and UI automation. He prefers shipping reliable, end‑to‑end features over academic perfection and looks for Senior/Staff iOS roles where modern Swift architecture and on‑device AI are on the roadmap.
13 years of coding experience
7 years of employment as a software developer
Máster Especializado en Desarrollo de Aplicaciones para Móviles. (300 hours), iOS Objective-C y Android SDK, Sobresaliente, Máster Especializado en Desarrollo de Aplicaciones para Móviles. (300 hours), iOS Objective-C y Android SDK, Sobresaliente at El Centro de Formación CICE en Madrid (España)
Github Skills (11)
uitest10
swift10
rxswift10
ios10
automation-testing10
ui-testing10
rxcocoa10
functional9
observables9
observable9
reactive9
Programming languages (4)
Github contributions (5)
ReactiveX/RxSwift
Jul 2015 - Nov 2018
Reactive Programming in Swift
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:46 commits, 73 PRs, 25 pushes in 3 years 3 months
Contributions summary:Carlos's commits primarily focus on enhancing the example application within the `RxSwift` repository, specifically related to UI controls and automation testing. Their work involves adding automated tests for various UI elements such as `UIBarButtonItem`, `UISegmentedControl`, `UISwitch`, `UITextField`, `UISlider`, `UIDatePicker`, `UIActionSheet`, and `UIAlertView`. Additionally, the user implemented a calculator UI example with its logic and further improved the automation tests by making them more robust and adaptable. The changes included also some improvement in playground examples and more clear handling for Geolocation service.
observerunidirectionalrxswiftreactive-programmingswift
RxSwiftCommunity/guides.rxswift.org
Nov 2015 - Jan 2016
Contributions:50 commits, 7 PRs, 25 pushes in 2 months
rxswiftswift
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