33 app developer jobs at 23 companies in Crestline, CA
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Web and Mobile App Developer
Irvine, California, United States
$106k-$118k/yr HybridFull Time
2+ YOE2+ years web/mobile development experience with Next.js, React, React Native, Node.js, TypeScript, PostgreSQL; knowledge of APIs, headless CMS, performance, accessibility, and SEO. Bachelor’s preferred.
Next.js, React, TypeScript, React Native, Node.js, WordPress, PostgreSQL, SQL
2mo
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App Software & AI Engineer, Advisor
Rosemead, California, United States
$162k-$243k/yr HybridFull Time
7+ YOE3+ MgmtBachelor's in CS or related,7+ years full‑stack enterprise experience,1+ year building AI solutions,3+ years leading technical teams,experience with cloud and modern engineering practices.
React, Angular, Node.js, Python, Express, Azure, GCP, iOS Swift, React Native, Power Platform, Azure OpenAI, Copilot Studio, Retrieval Augmented Generation (RAG), GitHub, CI/CD, Copilot, VS Code, GitHub Copilot
1w
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Lead Software Engineer – CoCounsel Legal Desktop App
Eagan or Frisco or New York City or San Francisco or Los Angeles or Irvine or McLean or Washington
$118k-$253k/yr HybridFull Time
7+ YOE7+ years software engineering with desktop app experience on Windows and/or macOS, framework experience (Electron/Tauri/native), cloud API integration, mentoring skills, strong communication and architecture expertise.
Electron, Tauri, Win32, OAuth, SSO, MSI, PKG
1mo
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Senior iOS Engineer
Irvine or New York City or San Francisco or Seattle
$168k-$262k/yr OnsiteFull Time
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
1mo
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Mobile / Front-End Developer — Mortgage Broker & Retail Experience
Irvine or United States
$135k/yr RemoteFull Time
4+ YOE4+ years front-end or mobile development; shipped mobile app; strong JavaScript/TypeScript and React Native/Flutter or Swift/Kotlin; experience with REST/GraphQL, auth and secure storage; daily use of AI coding tools; U.S. work authorization required.
React Native, Flutter, Swift, Kotlin, JavaScript, TypeScript, REST, GraphQL, Claude Code, GitHub Copilot, Cursor, Blue Sage, LOS, App Store, Google Play
2mo
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Loopnet - Senior iOS Engineer
Irvine, California, United States
$130k-$204k/yr HybridFull Time
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
1mo
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Senior iOS Engineer, Twitch
Seattle or New York or Irvine or San Francisco
$193k-$262k/yr OnsiteFull Time
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
2w
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Application Developer
Rancho Santa Margarita, California, United States
$80k-$120k/yr OnsiteFull Time
3+ YOEBachelor's in CS/IT/Software Engineering or equivalent experience; proficiency in C#/.NET Core, React, TypeScript; 3+ years experience; knowledge of SQL Server/PostgreSQL/Azure Cosmos DB, Azure deployments, CI/CD, automated testing, and strong communication.
C#, .NET Core, React, TypeScript, SASS, SCSS, Flexbox, CSS Grid, Webpack, Vite, npm, yarn, SQL Server, PostgreSQL, Azure Cosmos DB, RESTful, GraphQL, Azure, App Services, Azure Functions, Docker, Kubernetes, Figma, xUnit, NUnit, Cypress, Playwright, React Testing Library, Azure Active Directory (Azure AD), Auth0, Azure DevOps, GitHub Actions, GitHub Copilot, Git, Azure Service Bus, RabbitMQ
1mo
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Homes.com - Senior iOS Engineer (SwiftUI)
Irvine, California, United States
$130k-$204k/yr HybridFull Time
5+ YOEBachelor's degree, 5+ years iOS development, expert in Objective-C, Swift/SwiftUI, Cocoa and Xcode, strong UI and scalable app experience, knowledge of MVC/MVVM/Dependency Injection, proven commitment to prior employers.
Objective-C, SwiftUI, Swift, Cocoa, Xcode, Interface Builder
2mo
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Sr AI/Agentic Engineer
Los Angeles or Santa Clara or Tustin or Dallas or United States
$111k-$185k/yr HybridFull Time
5+ YOE5+ years software engineering with 3+ years building and shipping LLM-powered apps; expert Python; production-grade LLM and RAG systems; strong platform and collaboration skills.
LangChain, LangGraph, LlamaIndex, DSPy, HuggingFace, AWS Bedrock, OpenAI, Anthropic Claude, Google Gemini
3w
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Full Stack Engineer
Irvine, California, United States
$45-$200/yr OnsiteFull Time
Strong React and Golang or Node.js, experience with Postgres/SQLite, API design, backend architecture, portfolio of shipped apps; Swift/Kotlin and DevOps/CI/CD are a plus.
React, Golang, Node.js, Postgres, SQLite, Swift, Kotlin, CI/CD
1mo
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Sr. Software Engineer
Irvine, California, United States
$112k-$191k/yr RemoteFull Time
5+ YOE5+ years enterprise software engineering with C#, .NET, SQL Server, Angular, and Azure; experience stabilizing production systems, building microservices/APIs, and mentoring teams.
C#, .NET, SQL Server, Angular, Azure, App Services, Functions, SQL Database, Kubernetes, Docker, DevOps pipelines
1mo
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AI Full-Stack Developer
Irvine, California, United States
$120k-$140k/yr OnsiteFull Time
3+ YOE3+ years full‑stack experience; strong React/Next.js, Node.js, Python skills; RESTful APIs and microservices; experience with Azure or GCP; ability to integrate AI/ML models into production and build secure, scalable web apps.
React, Next.js, Node.js, Python, RESTful APIs, Microservices, Azure, GCP, OpenTelemetry, LangSmith, Langfuse, AI/ML
1mo
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Staff Software Engineer, Full-Stack
Santa Ana or California or New Jersey or Texas or Florida or Shanghai or Japan or Hong Kong or Canada or Mexico or Germany or France or United States
$166k-$269k/yr HybridFull Time
7+ YOE7+ years building web apps, APIs, and distributed systems; 3+ years AWS; proficiency in Python, C#, or Java; experience with React/Next.js; use of AI tools (Claude Cowork, Codex); staff-level technical leadership.
AWS, Claude Cowork, Codex, Python, C#, Java, React, Next.js, e-Verify
2mo
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Staff Software Engineer - Cloud Platform and Azure
Irvine, California, United States
$140k-$170k/yr OnsiteFull Time
9+ YOE9+ years software engineering experience, expert Microsoft Azure and IaC (Terraform, Bicep, ARM), CI/CD (GitHub Actions/Azure DevOps), REST API design, relational databases (PostgreSQL/SQL Server), strong communication and systems modernization experience.
Microsoft Azure, .NET, TypeScript, PostgreSQL, SQL Server, Terraform, Bicep, ARM, GitHub Actions, Azure DevOps, GitHub, Azure Functions, App Services, API Management, Entra ID, Key Vault, Storage Accounts, Azure Monitoring, React, C#
4w
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Project Engineer II
Brea, California, United States
$137k/yr HybridFull Time
3+ YOEBachelor's in engineering with 5 years experience (or Master's with 3 years), experience specifying process equipment, piping, pumps, valves, instrumentation, Google apps and 3-D model review.
Gmail, Docs, Sheets, 3-D design software
1mo
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Platform Engineer II (Remote)
Santa Ana or Los Angeles County
$98k-$130k/yr RemoteFull Time
Hands-on Oracle Apps DBA experience with E-Business Suite R12.2.x, Oracle Database 19c RAC, WebLogic, Linux administration, security patching, cloud (OCI/AWS/Azure), automation, monitoring, and AI tool literacy.
Oracle E-Business Suite R12.2.x, Oracle Database 19c RAC, Oracle Fusion Middleware, WebLogic, Oracle Cloud Infrastructure (OCI), AWS, Azure, Linux, RMAN, Data Guard, Cursor, Claude Code, Codex
1mo
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Structural Engineer - Seismic Focus - PT
Riverside or San Bernardino or United States
FieldPart Time, Contract
3+ YOEBachelor's in Civil/Structural Engineering, 3+ years seismic engineering experience, PE preferred, valid driver's license, proficiency with Microsoft Office, inspection tools and smartphone apps, ability to perform on-site assessments and produce technical reports.
Microsoft Office Suite, ASCE-41
3d
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Outcome Customer Engineer, Telco, Media, Entertainment and Gaming, Google Cloud
New York or Atlanta or Austin or Irvine or Miami or San Francisco
$152k-$221k/yr OnsiteFull Time
10+ YOEBachelor's degree or equivalent,10 years cloud-native architecture experience in customer-facing/support roles; experience with infrastructure/app modernization, migrations, security, networking, and cloud engineering.
Google Cloud Platform, SAP
3mo
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Medical Imaging Field Engineer - Orange County, CA
Los Angeles or Orange County
$64k-$88k/yr RemoteFull Time
3+ YOEExperience servicing CT/MR/MI/PET imaging systems; high school diploma; 3-5 years field service; valid driver’s license; strong customer service; travel within CA; proficient with tools and network apps.
eVO, mButler, MS Office, Concur, NAM Customer Service website, Engineer Tools
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