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59 io engineer jobs at 35 companies in Ontario, CA

1w
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Automation Engineer Manager
City of Industry, California, United States
$130k-$160k/yr OnsiteFull Time
Danone
DanoneEuronext Paris: BN: Global food and beverage producing dairy and nutrition.
5+ YOE5+ years automation and controls engineering/project management in manufacturing, experience with PLCs, SCADA, industrial networks, MSSQL, AutoCAD/Visio, strong electrical controls design and project leadership.
Inductive Automation Ignition Platform, Wonderware System Platform, Factory Talk View SE, MSSQL, Allen Bradley, Rockwell PLC, RS Logix 500, Studio 5000, Ethernet/IP, Modbus TCP, IO Link, AS-I, DeviceNet, Factory Talk Historian, Wonderware Historian, Microsoft Office, Windows, AutoCAD, Microsoft Visio, SAP
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1mo
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Senior Network Engineer, Airborne Systems
Irvine, California, United States
$125k-$190k/yr OnsiteFull Time
DZYNE Technologies
DZYNE Technologies: Developer and manufacturer of autonomous airborne defense systems.
7+ YOE7+ years network engineering experience designing, deploying, and sustaining secure, low-latency communications for UAS/airborne systems; Cisco IOS/IOS‑XE expertise; RF radios, datalinks, SATCOM, IP networking, and DoD cybersecurity (RMF/STIG) knowledge; active Secret clearance required.
Cisco IOS, Cisco IOS-XE, Splunk, SolarWinds, Cisco ISE, HAIPE, TACLANE, Cisco Unified Communications, VoIP, VTC, OSPF, EIGRP, RIPv2, BGP, IPv4, IPv6, NTP, SNMP, SSH, Syslog, RADIUS, TACACS+
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3w
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Design Engineer, Core Snapchat
Los Angeles or Santa Monica
$209k-$313k/yr OnsiteFull Time
Snap
SnapNYSE: SNAP: Provides visual messaging software and augmented reality wearable devices.
6+ YOE6+ years post-degree software development experience, iOS development (Objective-C/Swift), rapid functional prototyping, product strategy experience, BS/BA in technical field or equivalent, strong communication and problem-solving.
iOS, Objective-C, Swift, Figma, Sketch, Framer, Origami, Principle, AI
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2mo
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iOS Engineer
Venice, California, United States
HybridFull Time
Intro
Intro: Connects people to experts for 1:1 video call advice.
5+ YOE5+ years iOS development; Swift and SwiftUI; UIKit/Core Data; REST APIs; CI/CD; strong problem solving and collaboration.
Swift, SwiftUI, UIKit, Core Data, Core Animation, RESTful APIs
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Senior iOS Engineer, Twitch
Seattle or New York or Irvine or San Francisco
$193k-$262k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
6+ YOE6+ years professional software and iOS development experience, strong Swift proficiency, experience leading architecture and mentoring engineers, production App Store shipping, and familiarity with hybrid WebView/React integrations and AI dev tools.
Swift, React, React Native, WebView, Claude Code, GitHub Copilot, Cursor
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3mo
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Loopnet - Senior iOS Engineer
Irvine, California, United States
$130k-$204k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Provides global real estate information, analytics, and online marketplaces.
5+ YOE5+ years of iOS app development; expert in Objective-C, SwiftUI/Swift, Cocoa, Xcode; MVC/MVVM; Bachelor’s degree.
Objective-C, Swift, SwiftUI, Cocoa Framework, Xcode, Interface Builder
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Senior iOS Engineer
Irvine or New York City or San Francisco or Seattle
$168k-$262k/yr OnsiteFull Time
Twitch
TwitchNASDAQ: AMZN: Operates a global live streaming platform for interactive content.
6+ YOE6+ years professional iOS development with Swift, experience shipping App Store apps, strong architecture and performance skills, mentoring experience, familiarity with hybrid WebView/React integration.
Swift, React, React Native, WebView, Claude Code, GitHub Copilot, Cursor
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1w
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Automation Engineer Manager
City of Industry, California, United States
$130k-$160k/yr OnsiteFull Time
Danone
DanoneEuronext Paris: BN: Global food and beverage producing dairy and plant-based goods.
5+ YOEBachelor's in engineering preferred, 5+ years automation and controls project management in CPG, strong PLC/networking/MES experience, Ignition/Wonderware/FactoryTalk/MSSQL proficiency, AutoCAD/Visio and project management skills.
Inductive Automation Ignition, Wonderware System Platform, FactoryTalk View SE, MSSQL, RSLogix 500, Studio 5000, FactoryTalk Historian, Wonderware Historian, Microsoft Office, AutoCAD, Microsoft Visio, SAP, Allen-Bradley PLC, Ethernet/IP, Modbus TCP, IO Link, AS-I, DeviceNet
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3mo
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Loopnet - Senior iOS Engineer
Irvine, California, United States
$130k-$204k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Global provider of commercial and residential real estate data.
5+ YOEBachelor's degree required, 5+ years iOS development experience, expert in Objective-C, Swift/SwiftUI, Cocoa, Xcode and Interface Builder, knowledge of OOP and design patterns.
Objective-C, Swift, SwiftUI, Cocoa, Xcode, Interface Builder
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3mo
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Mobile Engineer 5 - Commerce Design System
Los Gatos or Los Angeles or Seattle
$388k-$558k/yr OnsiteFull Time
Netflix
NetflixNASDAQ: NFLX: Global video streaming and media production service.
Mobile UI engineer with Kotlin/Jetpack Compose focus; Android and iOS experience; design system development; cross‑platform familiarity; AI tooling.
Kotlin, Jetpack Compose, Dagger/Hilt, Circuit, Swift, SwiftUI, UIKit, GraphQL
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4w
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iOS Engineer, App Platform
New York City or San Francisco or Los Angeles or Seattle
$170k-$290k/yr RemoteFull Time
Whatnot
Whatnot: Social marketplace for buying and selling via live streams
Proficiency in Swift and SwiftUI, strong iOS fundamentals, product instincts, experience shipping user-facing features, bachelor’s degree or equivalent, ability to work near NY/SF/LA/SEA hubs.
Swift, SwiftUI
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2d
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Engineering Manager, Mobile Developer Experience
San Francisco or Sunnyvale or Seattle or Los Angeles or New York City
$194k-$285k/yr OnsiteFull Time
DoorDash
DoorDashNASDAQ: DASH: On-demand delivery platform connecting consumers with local merchants.
7+ YOE3+ MgmtRequires 7+ years of software development, expert Android or iOS proficiency, 3+ years leading engineering teams, technical expertise, pragmatic problem-solving, and cross-functional leadership experience.
Android, iOS
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1d
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Lead Software Engineer Mobile App
Eagan or Frisco or New York City or San Francisco or Los Angeles or Irvine or McLean or Washington
$118k-$220k/yr HybridFull Time
Thomson Reuters
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
7+ YOERequires 7+ years of software engineering experience, deep iOS or Android development, mobile architecture leadership, production app delivery, cloud API integration, mentoring, and strong technical communication.
Swift, SwiftUI, Kotlin, Jetpack Compose, React Native, Flutter, OAuth, SSO, MDM, CI/CD
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2d
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Software Engineer, iOS, Level 5
Los Angeles or Seattle or San Francisco or Palo Alto or New York City or Bellevue
$209k-$313k/yr OnsiteFull Time
Snap
SnapNYSE: SNAP: Develops social media applications and augmented reality technology.
6+ YOEBachelor's degree or equivalent experience and 6+ years of post-bachelor's software development experience, or equivalent advanced-degree pathways. Requires iOS development and Objective-C expertise.
Objective-C, Objective-C Runtime, iOS, Swift, C, C++, OpenGL, Metal
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2mo
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iOS Software Engineer, AI Engineering
Santa Monica or New York City
$190k-$200k/yr OnsiteFull Time
TWG Global
TWG Global: Investment holding scaling AI across finance and sports.
5+ YOE5+ years iOS development with Swift; strong SwiftUI/UIKit; APNs and App Store lifecycle; REST/Networking; on-device ML; unit/UI testing; CS or equivalent experience.
Swift, SwiftUI, UIKit, APNs, URLSession, REST, CoreML, NLContextualEmbedding, Whisper, TTS, Instruments, XCTest
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2w
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Senior iOS Engineer (Instant Rips)
Los Angeles or New York
$145k-$217k/yr OnsiteFull Time
Fanatics
Fanatics: A global digital sports platform for merchandise and collectibles.
5+ YOE5+ years building consumer iOS apps; expertise in SwiftUI, Swift Concurrency, TCA, Apollo GraphQL, SPM, Tuist, CI/CD, static analysis and AI-assisted tooling; strong testing and communication skills.
SwiftUI, The Composable Architecture (TCA), Swift Concurrency, Swift Macros, Apollo GraphQL, SPM, Tuist, Bitrise, Fastlane, SwiftLint, Periphery, Xcode
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1w
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Senior Product Software Engineer (Swift)
Glendale or Seattle or New York City
$142k-$190k/yr OnsiteFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces media content and operates global theme parks.
5+ YOE5+ years iOS development (3+ with Swift), strong UIKit/SwiftUI experience, iOS/tvOS lifecycle, Objective-C/Swift proficiency, unit testing and CI exposure, Bachelor's in Computer Science or equivalent.
Swift, Objective-C, UIKit, SwiftUI, AVKit, StoreKit, AVFoundation, HLS, MPEG-DASH, CMAF, iOS, tvOS
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Mobile Engineer
Los Angeles, California, United States
$149k-$214k/yr HybridFull Time
Green Dot
Green DotNYSE: GDOT: Provides mobile banking and payment solutions to consumers and businesses.
10+ YOE10+ years mobile development with iOS expertise, 3+ years technical leadership, Swift/SwiftUI/Combine/ UIKit, Kotlin knowledge, cloud-connected mobile architecture, CI/CD, analytics, and strong communication.
Swift, SwiftUI, Combine, UIKit, Kotlin, Azure DevOps, Git, Fastlane, Firebase, TestFlight, Datadog, Google Analytics, Adobe Analytics, Xcode, Android Studio, GitHub, Jira, Confluence, Figma, GitHub Copilot, Xcode Instruments, Azure, AWS
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1mo
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Senior Software Engineer, iOS
Playa Vista or Los Angeles or United States
$175k-$190k/yr HybridFull Time
Thrive Market
Thrive Market: Membership-based online grocery store selling natural and organic products.
7+ YOE7+ years iOS experience, strong Swift proficiency, SwiftUI/UIKit, reactive frameworks (Combine/RxSwift/ReactiveObjC), MVVM, SPM modular architecture, unit testing, Git, experience migrating Objective-C/legacy code, familiarity with LLM coding assistants.
Swift, Objective-C, SwiftUI, UIKit, Combine, RxSwift, ReactiveObjC, Swift Package Manager (SPM), Git, LLM coding assistants, Amplitude, Optimizely, LaunchDarkly, Kotlin, Kotlin Multi-Platform
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1mo
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AVP iOS Software Development Engineer III - MySynchrony
Stamford or Chicago or West Chester or Dallas or New York City or Costa Mesa or Charlotte or Alpharetta
$100k-$170k/yr HybridFull Time
Synchrony
SynchronyNYSE: SYF: Provides consumer credit products and private label retail cards.
4+ YOE4+ years software engineering experience (or HS +6 yrs), strong iOS expertise (Swift/SwiftUI/UIKit), mobile SDK experience, leadership of Agile teams, unit/integration testing, CI/CD familiarity, JSON/REST/XML, mentoring and production support.
SwiftUI, Swift, UIKit, JSON, REST, XML
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