57 java react developer jobs at 21 companies in Lancaster, CA
3w
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Staff Engineer (Java)
Los Angeles or Broomfield
$155k-$180k/yr HybridFull Time
6+ YOE6+ years production Java experience, expertise in microservices, Spring Boot, Docker, AWS, relational and NoSQL databases, messaging systems, CI/CD, and automated testing.
Java, Spring Boot, Docker, AWS, EC2, ECS, Hibernate, MySQL, Oracle, Postgres, Redis, MongoDB, DynamoDB, RabbitMQ, Kafka, Maven, Git, Jenkins, Puppet, Jira, JavaScript, React, Ant Design, Material UI, React Bootstrap, Model Context Protocol (MCP)
1w
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Software Engineer
Los Angeles, California, United States
OnsiteFull Time
Bachelor's degree or equivalent experience; proven software development with Java, Python, C#, or JavaScript; familiarity with web frameworks (React, Angular, Node.js) and SQL/NoSQL; strong problem-solving and teamwork skills.
Java, Python, C#, JavaScript, React, Angular, Node.js, SQL, NoSQL
1mo
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Sr. Software Engineer, AI Native
Culver City or San Diego
$180k-$205k/yr HybridFull Time
5+ YOE5+ years experience in full-stack development with Java, Go, or Python; REST API and frontend (HTML/CSS/JavaScript/React) proficiency; hands-on experience with AI-native coding tools, prompt engineering, agent development, and participation in on-call rotations.
Java, Go, Python, HTML, CSS, JavaScript, React, Angular, Ember, Jest, Babel, TypeScript, Claude Code, Cursor, GitHub Copilot, RESTful API, AWS, Docker, Kubernetes, Terraform, Ansible, Jenkins, BMad Method, SAFe, Scrum
1mo
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Senior Software Engineer (Full Stack Enterprise)
Hawthorne or El Segundo or Los Angeles
$150k-$225k/yr OnsiteFull Time
5+ YOEBachelor's in CS or related, 5+ years software development experience (Python, Go, Java), experience with Flask/Django, React/Next.js, SQL and non-relational databases; leadership and system architecture experience preferred.
Python, Go, Java, Flask, Django, React, Next.js, SQL
3w
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Software Engineer II
Orlando or Burbank
$112k-$150k/yr HybridFull Time
3+ YOE3+ years building web or enterprise applications; experience with Laravel/WordPress/LAMP, JavaScript/React/Java, REST, EM standards; bachelor's in CS or related field required.
Laravel, WordPress, LAMP, JavaScript, React, Java, REST, XML, HTML, CSS, Jira, Git, GitHub Actions, Jenkins, Confluence, ServiceNow
3mo
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Full Stack Engineer, Senior
Oakland or Seattle or WA or OH or CA or Long Beach or AZ or CO or CT or FL or GA or MD or MN or NV or OR or El Dorado Hills or Lodi or Rancho Cordova or Redding or San Diego or Woodland Hills or AL or IL or VA or WI or TX or NY
$103k-$174k/yr HybridFull Time
5+ YOE5+ years full stack development; BA/BS or equivalent IT experience; React/Vue/Angular; .NET/Java/Node.js/Python APIs; SQL/NoSQL; Azure preferred; Docker; IaC; CI/CD; AI tools; healthcare experience preferred.
React, Vue, Angular, JavaScript, TypeScript, .NET, Java, Node.js, Python, MS SQL Server, Oracle, NoSQL, REST, Azure, AWS, GCP, Docker, Kubernetes, Ansible, Bicep, ARM, Terraform, GitHub, GitLab, Bitbucket, Git
3w
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Software Engineer II
Orlando or Burbank
$112k-$190k/yr HybridFull Time
3+ YOE3+ years software engineering experience for web or enterprise apps; experience with Laravel/WordPress/LAMP, JavaScript/React/Java, REST/XML/HTML/CSS; Agile, testing, and CI/CD familiarity; bachelor's degree or equivalent.
Laravel, WordPress, LAMP, JavaScript, React, Java, REST, XML, HTML, CSS, Jira, Git, GitHub Actions, Jenkins, Confluence, ServiceNow, TOGAF, WCAG, WAI-ARIA
1d
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Software Engineer 4 - Finance and Tax Technology
United States or Los Angeles
$250k-$413k/yr RemoteFull Time
Software engineering experience with Java, Python, object-oriented design, APIs, distributed systems, databases, cloud services, testing, React or similar frameworks, and finance domain knowledge.
gRPC, GraphQL, RESTful API, Java, Python, MySQL, Oracle, PostgreSQL, JavaScript, TypeScript, React
1d
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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
2mo
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Full-Stack Engineer 5 - Ads Decisioning & Optimization
New York or Los Angeles or Los Gatos
$320k-$500k/yr OnsiteFull Time
7+ YOE7+ years of professional software engineering with full-stack experience (UI, API, backend). Proficiency in React, TypeScript/JavaScript, Node.js; backend in Java/Kotlin; strong observability and debugging tooling experience.
React, TypeScript, Java, Kotlin, Node.js, SQL, Observability tooling
1d
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Frontend Engineer Intern (6 month internship)
Los Angeles or Playa Vista
$30/hr HybridInternship
Front-end development knowledge with React, JavaScript/TypeScript, HTML5, CSS/Tailwind, and exposure to Next.js, Node.js, APIs, source control, and debugging; pursuing a relevant degree or recently graduated.
React, Next.js, TypeScript, JavaScript, HTML5, CSS, Tailwind, Node.js, Java, Claude Code, Codex, GCP, AWS, REST APIs, Vercel, Docker, MCP servers
1mo
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Software Engineer, Full Stack, Level 4
Los Angeles or New York City or Bellevue or Seattle or San Francisco or Palo Alto or Santa Monica
$157k-$235k/yr OnsiteFull Time
2+ YOEBachelor's degree or equivalent, 2+ years post-degree software development, proficiency in JavaScript/TypeScript, HTML, CSS and one or more backend languages (Java, Golang, NodeJs, Python), front-end frameworks, unit testing, and full-stack web development.
JavaScript, TypeScript, HTML, CSS, Java, Golang, NodeJs, Python, React, Angular, Vue, WebGL, Canvas, WebAssembly, Service workers, GraphQL, NoSQL, Memcache, Redis, Kubernetes, Google, AWS
21h
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Senior Full-Stack Engineer - TikTok Open Platform
San Jose or Los Angeles or Singapore or New York City or London or Dublin or Paris or Berlin or Dubai or Jakarta or Seoul or Tokyo
$218k-$388k/yr OnsiteFull Time
5+ YOEBachelor's degree in computer science or related field, 5+ years of software engineering experience, strong JavaScript, TypeScript, HTML/CSS, React, backend development, system design, databases, microservices, and AI tooling.
JavaScript, TypeScript, HTML, CSS, React, Golang, Java, Python, Node.js, Cursor, Claude Code, LLM, RAG, Function Calling, Agents, MCP, OAuth
1mo
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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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Senior Engineer - Supply Chain Tech
Seattle or Los Angeles or San Francisco or United States
$142k-$221k/yr OnsiteFull Time
6+ YOE6+ years engineering experience; Bachelor's or Master's in Computer Science/Engineering or equivalent; strong Java and Spring Boot skills; experience with REST, Kafka, cloud (AWS/GCP), Kubernetes, Docker, CI/CD; on-call and mentoring experience.
Java, Spring Boot, Python, React, JavaScript, C#, Kafka, APIs, RESTful services, AWS, GCP, Kubernetes, Docker, CI/CD, Scrum, Kanban, Lean
1mo
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Senior Central Cloud Infrastructure Engineer
Los Angeles or New York or Seattle
OnsiteFull Time
Experience building and operating cloud infrastructure with AWS and related observability, datastore, and development tools (TypeScript, React, Scala, Java, MySQL/PostgreSQL, Snowflake, Git/GitHub, Datadog). On-site presence required (4 days/week).
TypeScript, React, Scala, Java, MySQL, PostgreSQL, Snowflake, AWS, Git, GitHub, Copilot on GitHub, Datadog
2mo
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Ground Software Engineer
Torrance or Los Angeles
$123k-$150k/yr OnsiteFull Time
3+ YOE3+ years software engineering experience or relevant degree; experience with Rust, TypeScript/Vue, backend/frontend development, APIs, SQL, Docker/Kubernetes, networking and data streaming; strong collaboration and mentoring skills.
Rust, TypeScript, Vue, Go, C++, Java, C#, JavaScript, React, Svelte, Docker, Kubernetes, WebSockets, Server-Sent-Events (SSE), HTTP, gRPC, SQL, PostgreSQL, NATS, Pulsar, TCP/IP, UDP, QUIC, SOC2, FedRAMP
1mo
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Software Engineer, Full Stack, Level 4
Los Angeles or New York City or Bellevue or Seattle or San Francisco or Palo Alto or Santa Monica
$133k-$235k/yr OnsiteFull Time
2+ YOEBachelor's in CS or equivalent experience; 2+ years post-bachelor software development; full stack web development experience; proficient in JavaScript/TypeScript, front-end frameworks, backend languages, unit testing, and AI tooling.
JavaScript, TypeScript, HTML, CSS, Java, Golang, NodeJs, Python, React, Angular, Vue, WebGL, Canvas, WebAssembly, Service workers, GraphQL, Memcache, Redis, Kubernetes, Google, AWS
2d
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Senior Backend Engineer - Music Monetization & DRM
Stockholm or London or New York City or Los Angeles or Berlin or Paris or Oslo or Seoul
HybridFull Time
Backend development experience, preferably Go; SQL and large-scale data processing; algorithm evaluation; Google Cloud; microservices; Kubernetes, Helm, and Terraform; strong written and verbal English.
Go, SQL, Google Cloud Platform, Kubernetes, Helm, Terraform, Kotlin, Java, Python, TypeScript, React
2mo
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Ground Software Systems Engineer
El Segundo or Colorado Springs or Aurora
$87k-$198k/yr OnsiteFull Time
7+ YOE7+ years in ground system components and software development (C++/Python), 2+ years in program reviews and software design documentation, agile, secret clearance, STEM degree.
C++, Python, Java, C, C#, JavaScript, React, NodeJS, PHP, Drupal, .NET
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