React.js Jobs in California

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Full Stack Developer / Web Developer

Technogen, Inc.

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US

Contract

TECHNOGEN, Inc. is a Proven Leader in providing full IT Services, Software Development and Solutions for 15 years. TECHNOGEN is a Small & Woman Owned Minority Business with GSA Advantage Certification. We have offices in VA; MD & Offshore development centers in India. We have successfully executed 100+ projects for clients ranging from small business and non-profits to Fortune 50 companies and federal, state and local agencies. Full Stack Developer (Python, React, Typescript, AWS) REMOTE (Pref
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Posted 10 days ago | Updated 12 hours ago

Frontend Developer

Caspex Corporation

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Sunnyvale, California, USA

Contract

Job Description: Senior Engineer with strong Front end experience and a proven track record of building high-quality scalable web applications, and solid leadership abilities. Responsible for implementing pixel-perfect designs that balance challenging customer needs with application performance. Requirements: - BS in Computer Science or related technical field required. - Qualified Full Stack Engineer with a strong emphasis on Front End Experience with proven experience with React JS or equival
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Posted 41 days ago | Updated 30 days ago

Android Developer with kotlin UI

Info Way Solutions

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San Francisco, California, USA

Contract

Job role- Kotlin Developer with React Location: Hybrid for SF, CA Duration - 6+ months Key Responsibilities: Design, develop, test, and deploy Kotlin-based applications. Write clean, maintainable, and efficient code. Collaborate with cross-functional teams to define, design, and ship new features. Ensure the performance, quality, and responsiveness of applications. Identify and correct bottlenecks and fix bugs. Continuously discover, evaluate, and implement new technologies to maximize developm
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Posted 11 days ago | Updated 5 days ago

Sr. Software Engineering - Design System

Horizontal Talent

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Remote

Contract

We are seeking a talented Frontend Software Engineer to join our dynamic design system development team. This role offers the opportunity to work on innovative projects that revolutionize the real estate industry through cutting-edge technology. Responsibilities Assist in the development and maintenance of a comprehensive design system, including UI components and documentation. Collaborate with product managers, designers, and engineers to create scalable design solutions. Implement and optimiz
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Posted 17 days ago | Updated 14 hours ago

Front End Developer

Velocity Tech Inc

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Remote or Dallas, Texas, USA

Contract

Full Stack (React/Node/GraphQL with some Java) RemoteLocation: Dallas, TX, Plano, TX, Houston, TX, Austin, TX Skills Overview: What are the top five skills and number of years of experience required to perform this job? 7+ years of Full Stack Front End / Backend Development Experience.Solid technical communication skills with business partners, product partners and other engineer teams.3+ years of experience with modern javascript front-end frameworks & libraries such as React, Redux, Node, Expr
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Posted 35 days ago | Updated 8 hours ago

Java Lead developer

Techsunsoft

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Remote

Contract

TSS -Java Lead Developer Location: Remote Duration: 1 Year Rate: $50/hr. Work Type: W2 Job Description: TechSun Soft is seeking a strong Java Lead Developer to support various IT initiatives, including web applications, backend services, and system integrations. The Lead Developer will contribute to all phases of development and may mentor a team of developers, driving creativity, scalability, and best practices across projects. Responsibilities: Collaborate with Business Analysts, Project Manag
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Posted 14 days ago | Updated 14 days ago

FullStack Java Developer ::: NYC ::: Hybrid role

REDLEO SOFTWARE INC.

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Remote

Full-time

FullStack Java Developer 100% Remote Full Time 12+ Years of experience required. Java Spring Boot Microservices React JS Node JS
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Posted 26 days ago

Senior Full Stack Software Engineer

Stand Together Chamber of Commerce

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Remote

Full-time

Stand Together is a mission-driven organization committed to driving positive social change and empowering individuals to overcome barriers. Our community is growing and so is the impact of our work to move toward a society where everyone has the opportunity to succeed by benefitingothers. We're looking for a Senior Full Stack Software Engineer to support Stand Together Foundation and a pipeline of new and innovative technology products. As a Software Engineer, you will utilize your technical an
Posted 11 days ago | Updated 11 days ago

W2-Remote-New York, NY :: Mobile (iOS & Android) Apps Developer using ReactNative

Bitsoft International, Inc.

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Remote

Full-time

Mobile (iOS & Android) Apps Developer using ReactNative 6+Months New York, NY 10006 (Remote) Requirements: - Proficiency in frontend development with at least 3 years dedicated to mobile application projects for both iOS and Android platforms, utilizing React Native. - Preferably skilled in React and NextJS frameworks. - A minimum total of 5 years of experience in software development. - Mandatory experience in version control using GitHub. - Knowledge and experience with DevOps practices, inclu
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Posted 13 days ago | Updated 7 hours ago

Lead Java Developer - Hybrid

The Dignify Solutions, LLC

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San Francisco, California, USA

Third Party, Contract

We're looking for a Lead Developer with 10+ years of experience in Java, React, and enterprise application development to drive innovation in our Supply Chain tech stack. * Leading the development of high-impact, scalable applications * Mentoring developers and fostering best practices in architecture & design * Working across the stack with Java, React, MongoDB, Python, and Kafka * Building RESTful APIs and event-driven systems * Optimizing for performance, concurrency, and cloud deployment (AW
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Posted 12 days ago | Updated 3 hours ago

GraphQL Developer

Coretek Labs

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San Jose, California, USA

Contract, Third Party

Job Title: GraphQL Developer Location: San Jose, CA (Onsite) (Local candidates only) Duration: Long Term Contract Mode of Interview: Face to Face Interview Job Details: Demonstrated experience as a GraphQL Developer or in a similar role. Deep understanding of GraphQL and its ecosystem. Server-Side Languages: Proficiency in languages such as Node.js, Python, or Ruby. Front-End Technologies: Familiarity with frameworks like React, Angular, or Vue.js. API Expertise: Solid understanding of RESTful
Posted 5 days ago | Updated 2 hours ago

Director of Technology

Oscar Technology

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Remote

Full-time

10+ years of software engineering experience, with 5+ years in a leadership or management role. Strong expertise in PHP (ideally PHP 8.x) and modern frameworks like Laravel or Symfony. Proven experience leading engineering teams in high-growth environments. Deep understanding of software architecture, design patterns, and system scalability. Experience with cloud platforms (AWS, Google Cloud Platform, or Azure), RESTful APIs, microservices, and DevOps principles. Solid understanding of Agile/Scr
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Posted 26 days ago | Updated 1 hour ago

Full Stack Developer (Gaming Industry Required)

Brilliant Infotech Inc.

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Remote

Contract

Job Title: Full Stack Developer Location: Remote but MUST be on the East coast Duration: 12+ Months Note: Prior Gaming experience is MUST Tope Skills: Python, React, Typescript, AWS, PostgreSQL, Opensearch/Elasticsearch Required Skills & Technologies: Python Development Proficiency in Django Experience with React and TypeScript Strong knowledge of AWS services: SQS, DynamoDB, S3, CloudFront PostgreSQL OpenSearch (ElasticSearch experience is also acceptable) Preferred Skills & Technologies: Exper
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Posted 14 days ago | Updated 17 hours ago

Java Develoepr with ServiceNow

Invovia Inc

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San Diego, California, USA

Third Party, Contract

Position Highlights: Title: Java DeveloperLocation: Hybrid Santa Clara or San Diego, CADuration: 12 monthsYou ll Work On: Designing and developing scalable, distributed web-based applicationsBuilding backend components that support chatbot integrationsDeveloping with Java, JavaScript, React, and SQLCollaborating with product managers and UX teams in an Agile environmentExtending ServiceNow platform capabilities using modern programming practicesWe re Looking For: Strong experience in Java and se
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Posted 15 hours ago

Application Maintenance Developer

Virtutem

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Remote

Full-time

SummaryWe are seeking a hands-on, technically strong C# developer to support and expand an existing full-stack enterprise application for a high-profile client. The application is already built and in active use. This role focuses on maintaining the platform while working closely with the client to enhance and grow its capabilities over time LogisticsFull-time availability required during standard California business hours. 100% remote; must be comfortable and effective working via screen share
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Posted 4 days ago | Updated 4 days ago

Rubyon Rails Architect - Remote

Mudrasys

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Remote

Third Party, Contract

Position: Ruby on Rails Architect Location: Remote Duration: 6-12months Job Description: Key Responsibilities: Develop and maintain robust, scalable, and secure applications using Ruby on Rails for backend and React for frontend.Design and implement RESTful APIs and integrate third-party services.Optimize application performance and troubleshoot/debug production issues.Collaborate with product managers, designers, and other developers to enhance user experience.Follow best practices in CI/C
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Posted 14 hours ago

Sr Node.js, Typescript Fullstack Developer

People Force Consulting Inc

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Remote

Contract, Third Party

Full Stack Developer (Healthcare App Modernization Node.js, React, TypeScript) Experience:7+ Years Location: New York, NY (Fully Remote) Contract: 6 months Educational Qualifications: - Engineering Degree BE/ME/BTech/MTech/BSc/MSc.Technical certification in multiple technologies is desirable.Job Description Were seeking a Full Stack Developer with expertise in Node.js (TypeScript)and Reactto work closely with our lead for application modernization efforts.Youll modernize legacy systems by inc
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Posted 27 days ago | Updated 2 hours ago

Full Stack Developer

Madison-Davis, LLC

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Remote

Contract

Role: Design, develop, and maintain sophisticated web applications using Java, Angular, Ruby on Rails, React, and AWS services.Contribute to solution design by collaborating with product owners, UX designers, and engineering peers throughout the development lifecycle.Produce clean, maintainable, and well-documented code aligned with software development best practices.Implement automated testing and perform comprehensive validation to deliver production-ready software in an Agile sprint cycle.En
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Posted 13 days ago

Software Engineer - API Development

Xylo Technologies, Inc.

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Remote

Contract

Candidates need work only on W2 for this job Title: Software Engineer Duration: Until 12/31/2025 Client: Mayo Clinic Req ID: 36014839 RemoteRequirements: 5+ years experience building distributed software systems with n-tier architectures.Should have an expert level of experience in one of the following and be proficient in all: API development with Python, Node, Java, or .Net.Frontend development with ReactJS, JavaScript, HTML/CSS.Operations integration with reporting and performance tools.Expe
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Posted 5 days ago

Senior C# Software Engineer

Service Station Computer Systems (SSCS)

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Remote

Full-time

Job description Are you interested in working remotely as a full-time developer in the United States for a company with four decades of software expertise, now embracing cutting-edge technologies? We re seeking a remote C# back-end web developer to join our team as we rebuild our software products from the ground up. In this role, you ll be part of a team tasked with developing the complete application stack. Collaboration with team members will be key to solving challenges and designing systems
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Posted 28 days ago