471 reactjs developer jobs at 214 companies in Westmont, CA
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Application Solution Architect (.NET, ReactJS)
Irvine, California, United States
$103k-$163k/yr OnsiteFull Time
10+ YOERequires 10+ years in application or solution architecture, expertise in .NET, ReactJS, JavaScript, REST APIs, cloud technologies, security, scalability, integration, governance, and roadmap development.
.NET, ReactJS, JavaScript, REST APIs
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Application Solution Architect (.NET, ReactJS)
Irvine, California, United States
$103k-$163k/yr OnsiteFull Time
10+ YOE10+ years in application or solution architecture; expertise in .NET, ReactJS, JavaScript, REST APIs, cloud technologies, application security, scalability, integration architecture, and technology roadmaps.
.NET, ReactJS, JavaScript, REST APIs
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Application Solution Architect (.NET, ReactJS)
Irvine, California, United States
$103k-$163k/yr OnsiteFull Time
10+ YOE10+ years in application or solution architecture; expertise in .NET, ReactJS, JavaScript, REST APIs, cloud-native design, security, scalability, integration, governance, and technology roadmaps.
.NET, ReactJS, JavaScript, REST APIs
2mo
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Software Engineer
Edinburgh or New York City or Los Angeles or Atlanta or Jersey City or United States or Canada or Puerto Rico or United Kingdom or Ireland or Portugal or Romania or Australia
HybridFull Time
2+ YOE2+ years relevant experience or degree/equivalent; strong Java backend, ReactJS, Terraform, AWS, Docker, Kubernetes; familiarity with databases, messaging, event streaming, testing, and Agile/Kanban; participate in on-call rotation.
Java, ReactJS, Terraform, AWS, Docker, Kubernetes, Kanban
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Staff Software Engineer
Los Angeles, California, United States
$150k-$225k/yr OnsiteFull Time
2+ YOEAdvanced Python and FastAPI, frontend experience with ReactJS, AWS (Cognito/Pinpoint/IoT/MSK), Docker, PyTest, relational and NoSQL databases, security/HIPAA awareness, and 2+ years recent tenure.
Python, FastAPI, NumPy, Pandas, Pydantic, ReactJS, Javascript, C++, MySQL, PostgreSQL, MongoDB, PyTest, Git, Jenkins, CircleCI, Confluence, Markdown, Prometheus, Grafana, Docker, Cognito, Pinpoint, IoT, MSK
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Associate Developer I
Irvine, California, United States
$45-$58/hr HybridTemporary, Full Time
2+ YOE2+ years software development experience, hands-on TypeScript/React/Next.js, experience with AI-assisted development tools (Claude Code, Cursor), Prisma/PostgreSQL, LLM integration, strong communication, bachelor's degree preferred.
TypeScript, Next.js, React, Prisma, PostgreSQL, Tailwind, shadcn/ui, Claude Code, Cursor, Claude Opus, Fable, Sonnet, Anthropic, Google GenAI, AWS S3, AWS Lambda, AWS SES, AWS SQS, TanStack Query, Zod, Vitest, Playwright, SAML, Okta, JWT, Git
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Web Developer
Rancho Cucamonga, California, United States
$65k-$85k/yr OnsiteFull Time
3+ YOERequires 3–5 years of experience and a bachelor's degree in computer science, software development, informatics, or a related field, or equivalent experience. Strong full-stack web development skills required.
HTML5, CSS3, JavaScript, DOM, Web APIs, Git, GitHub, DNS, Let's Encrypt SSL, AWS, Microsoft Azure, NGINX, Apache, WordPress, PHP, MySQL, Linux, React, Node.js, Python, WCAG, ADA
2mo
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Software Developer
Los Angeles, California, United States
$349k-$384k/yr RemoteFull Time
3+ YOEBachelor's in CS/related, 3 years experience, strong skills in JavaScript, React, HTML, CSS, TypeScript, CMS/Matrix, video playback optimization, PWA, API and infrastructure development.
JavaScript, React, HTML, CSS, TypeScript, Matrix, Progressive Web Apps (PWA)
6d
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Developer, Mobile
Los Angeles, California, United States
HybridFull Time
5+ YOERequires 5+ years of mobile development experience, native iOS or Android expertise, cross-platform frameworks, mobile architecture, API integration, prototyping, analytics, security, CI/CD, and a bachelor's degree or equivalent experience.
Swift, SwiftUI, Kotlin, React Native, Flutter, MVVM, MVC, Clean Architecture, Xcode, Android Studio, Firebase, Crashlytics, Core Data, Room, Realm, SQLite, Fastlane, Jenkins, GitHub Actions, AWS, Azure, Google Cloud, ARKit, ARCore
1mo
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Software Engineer - eCommerce
Irvine, California, United States
$100k-$167k/yr HybridFull Time
10+ YOE10+ years software development experience; strong Java, Spring Boot, microservices and AWS skills; experience with NodeJS/JavaScript/TypeScript and ReactJS; RESTful APIs, databases, CI/CD and payment industry knowledge a plus.
Java, Spring Boot, AWS, NodeJS, JavaScript, TypeScript, ReactJS, OpenAPI Specification, MySQL, PostgreSQL, DynamoDB, AWS RDS/Aurora, Bash, TCP/IP, UDP, HTTP, GitLab, AWS CodePipeline, AWS CodeCommit, CDK, QuickSight, Tableau, Grafana
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Software Engineer
Los Alamitos, California, United States
$89k-$111k/yr HybridFull Time
5+ YOEBachelor's degree in CS or related field,5+ years web application development,proficiency with HTML,CSS,JavaScript,SQL/.NET,experience with front-end frameworks and Git,knowledge of APIs and secure development.
HTML, CSS, JavaScript, SQL, MySQL, .NET Framework, REST, JSON, XML, SOAP, Angular, React, Vue.js, Git, Node.js, Python, Symitar SymXchange
2mo
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Senior Salesforce Developer
Jacksonville or Dallas or Cincinnati or Los Angeles or Sacramento or Richmond or Minneapolis or Boston or Kansas City or Chicago or Tampa or Washington or San Antonio or Houston or Colorado Springs or Nashville or San Diego or Pittsburgh or Tacoma or New York or Phoenix or Miami or Fayetteville
HybridFull Time
7+ YOE7+ years designing and implementing Salesforce solutions; 5+ years with Apex, LWC, Visualforce and integrations; Salesforce Platform Developer II required; Bachelor’s in CS/IS/software engineering or equivalent.
Salesforce CRM (Sales and Service Cloud), Force.com, Visualforce, Apex, Lightning Web Components, Cascading Style Sheets (CSS), HTML, Java, .NET, Data Loader, AppExchange, React, React Native, SQL
1mo
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Sr. Software Developer
Orange or Arizona or California or Florida or Maryland or Maine or Michigan or Missouri or North Carolina or Nevada or New York or Ohio or Oklahoma or Oregon or South Carolina or Texas or Utah or Washington or Wyoming
$120k-$145k/yr RemoteFull Time
7+ YOE7+ years professional software development with Microsoft .NET stack, experience with React/TypeScript, RESTful API design, Playwright, cloud deployments (AWS preferred), practical use of Claude or similar LLM agent tools, and demonstrated technical leadership.
ASP.NET WebForms, React, TypeScript, C#, .NET Web API, RESTful API, Claude, Redux Toolkit, Zustand, Playwright, CI/CD, Azure DevOps, AWS, ECS, Lambda, Step Functions, Bedrock, Azure, GCP
4d
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Software Engineer
Los Angeles, California, United States
OnsiteFull Time
Requires programming proficiency, software development experience, problem-solving, communication, and teamwork; a bachelor's degree or equivalent practical experience is preferred.
Java, Python, C#, JavaScript, AWS, Microsoft Azure, Google Cloud, Docker, Kubernetes, React, Angular, Vue.js
3w
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Staff Software Engineer
Beverly Hills, California, United States
$176k-$235k/yr OnsiteFull Time
10+ YOE10+ years software engineering experience, full-stack web development, React/Next.js, API and backend design, cloud (AWS/Azure/GCP), strong product instincts, mentorship and AI-assisted development experience.
React, Next.js, AWS, Azure, GCP
1mo
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Sr. Principal Software Engineer (SW Modeler/Developer)
Redondo Beach, California, United States
$142k-$213k/yr OnsiteFull Time
8+ YOEU.S. Secret clearance required; STEM degree with significant experience (BSc+8/ MSc+6/ PhD+4); expertise in backend (Python) and frontend (React) development, CI/CD, software modeling, and mission‑critical ground systems.
Python, React JS, C, C++, Cameo, FastAPI, MongoDB, Kafka, Docker, AWS Lambda, DynamoDB, API Gateway, Angular, SQS, EFS, S3, CI/CD
1mo
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LoopNet - Lead Software Engineer
Irvine or Orange County
$144k-$222k/yr HybridFull Time
9+ YOEBachelor's degree required; 9+ years production C#/.Net development; experience with TypeScript front-ends (Vue/React/Angular), AWS services (S3, SQS, Dynamo, ElastiCache), Kafka, Datadog, SQL and database development; unit-testable development and mentoring experience.
C#, .Net, .Net Core, TypeScript, Vue, React, Angular, AWS S3, SQS, Dynamo, ElastiCache, Apache Kafka, Datadog, Claude Code, GitHub Copilot, MS SQL, MySQL, Git, SQL
2mo
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Software Engineer
United States or Irvine
$110k-$130k/yr RemoteFull Time
5+ YOE5+ years software development; Bachelor's degree in software engineering or computer science; strong backend and frontend skills; AWS experience; SQL and CI/CD knowledge.
Java, Spring, JSF, Hibernate, Spring JPA, Node.js, ReactJS, Angular, CSS, HTML, AWS, EC2, ECS, AWS Lambda, S3, SQS, SQL, Python
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Marketing Web Developer
Irvine, California, United States
$100k-$110k/yr OnsiteFull Time
3+ YOERequires 3+ years of professional web development experience, WordPress, HTML5, CSS3, JavaScript, responsive design, PHP, Git, debugging, analytics integrations, and strong communication and organizational skills.
HTML5, CSS3, JavaScript, PHP, ASP.NET, WordPress, CMS, Git, WCAG, Google Tag Manager, GA4, Zapier, n8n, Lighthouse, PageSpeed Insights, Advanced Custom Fields (ACF), React, Vue, Sass/SCSS, Linux, Google Ads, Meta, Make, Salesforce, HubSpot
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Software Engineer
Los Angeles or El Segundo
$165k-$231k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
5+ YOEBachelor's degree and 5+ years of software development experience with Java, C#, or Python. Requires architecture leadership, cloud and container experience, algorithms, data structures, and strong communication.
.NET, Java, Python, Angular, React, RESTful web services, AI/ML APIs, AWS, Microsoft C#, LLM, RAG, vector databases, ERP, Finance, Supply Chain, Manufacturing, SQL
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