React Developer Jobs in California

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Commodities Application Developer (C#, React, TypeScript) - AVP - Houston (Hybrid)

Citi

Remote or Houston, Texas, USA

Full-time

The role is for a C# developer who will be working within a small team on Commodities Marking and Market Discovery Platform used by traders across the regions. We offer the opportunity to grow professionally, learn new technologies and gain business knowledge. Responsibilities: Develop the Platform using C# with an opportunity to learn React during WPF to React migrationWork directly with quants and traders to specify requirements and own deliveries and 3rd line support to provide daily communi

Web Developer (Javascript/ Reactjs)

Aptino

Mountain View, California, USA

Contract

Key Responsibilities:Develop and maintain responsive, user-friendly front-end components using React.js. Ensure cross-browser compatibility and consistent user experience across modern browsers. Write clean, well-structured, and maintainable HTML5, CSS3, and JavaScript code. Work closely with UX/UI designers and back-end developers to implement interactive features. Optimize front-end performance for speed and scalability. Debug and resolve UI/UX issues and browser inconsistencies. Stay updated

Front End Developer - Node.JS, GraphQL, React

West Coast Consulting LLC

California, USA

Full-time

Job Description REMOTE - PST Contract to hire Things You will do - Research, guide, and execute frontend architecture changes, including but by no means limited to GraphQL, server-side React rendering, and Flow typing. - Build reusable React components with modular CSS, manage data on the client with Redux, use react query, and GraphQL. - Measure and resolve performance bottlenecks, using tools like Chrome DevTools, Lighthouse, WebPagetest, or custom tooling. - Refactor or improve existing code

: Senior Staff Software Engineer

Vaco by Highspring

Remote

Full-time

Job Title:Senior Staff Software Engineer Location:100% Remote Employment Type:Direct Hire Compensation:$140,000 - $175,000 Base + 10%-15% Bonus Benefits:401K Matching, Full Benefits & PTO ImportantNote: No third-party companies - direct applicants only. Sponsorship is not available now or in the future. Job Summary We seek aSenior Staff Software Engineerwith strong AWS cloud engineering expertise to lead and mentor a high-performing software development team. This role is an even split between t

COE - Lead Onshore Full-Stack Developer - C1 (Java + React Js)

QualiTest

Remote

Full-time

Are you interested in working with the Worlds leading AI-powered Quality Engineering Company? Ready to advance your career, team up with global thought leaders across industries and make a difference every day? Join us at Qualitest! We are looking for a Lead Full-Stack Developer to join our growing team in United States! Responsibilities: Lead, Oversee and manage the offshore development team, ensuring seamless collaboration and high-quality code delivery. Assess, Evaluate and Hire new offshore

Python Full Stack Developer (Only CA local) (In-Person Interview and Day 1 Onsite)

Uniglobe Technologies, Inc

San Ramon, California, USA

Third Party, Contract

Role: Python Full Stack Developer Location: San Ramon, CA (In-Person Interview and Day 1 Onsite) Duration: Long Term Contract Must Have Python + ReactJS 6-10 Years of relevant experience and skilled in - Python, RESTful Webservice, NoSQL Database, In Memory Database.Hands-on & In depth knowledge of Python application programming concepts, Django REST framework, FlaskCreate services as part of back-end: message intake and processing pipelines (message flow), REST APIs for front-end, data manipula

Direct Client:: W2 contract:: Need Sr. Fullstack Java Developer with ThymeLeaf & Healthcare experience:: 100% remote

Synergy Technologies, LLC

Remote

Contract

W2 contract to Fulltime position No Sponsorship required = Role: Sr. Fullstack Java Developer Location: 100% remote Job Description: Sr. React Developers are responsible for the development, programming, and coding of Information Technology solutions using ReactJS, Redux, D3 and NodeJS to enable Client Customer Experience applications. Senior IT Developers are responsible for documenting detailed system specifications, participation in unit testing and maintenance of planned and unplanned i

Healthcare Python/ ReactJS Engineer *Remote

Indus River Technologies Inc.

Remote

Contract

HEALTHCARE FULLSTACK - PYTHON/REACT JS12 month initial contract Targeting Rate -55/w2 Work Authorization: GC Remote - working EST HoursClient: GRC/CVS Key techs: Python, ReactJs, Google Cloud Platform, Rest API, FHIR or other healthcare systems Our client is seeking a Full Stack Python/ ReactJS Software Engineer. This resource will support healthcare data initiatives including an application modernization and AI chatbot integration. Key Responsibilities:Develop and enhance modern front-end f

ReactJS Software Engineer - UI

Xoriant Corporation

San Jose, California, USA

Contract

Minimum Qualification Experience working with web and/or client-side technologies.Nice to have experience with full stack and/or backend developmentExcellent problem solving and analytical thinking skillsNice to have some infrastructure experience with AWS, Kubernetes, Java, CI/CDYou have advanced skills developing full-featured client-side applications using modern Javascript/Typescript technologies such as React/Redux.Knowledge of browser internals like Javascript engines, native DOM, Event AP

Senior Software Engineer, React, NodeJS, and Java

Maxonic, Inc.

Newark, California, USA

Third Party, Contract

Maxonic maintains a close and long-term relationship with our direct client. In support of their needs, we are looking for a Senior Software Engineer, React, NodeJS, and Java. Job Description: Job Title: Senior Software Engineer, React, NodeJS, and Java Job Location: Newark, CA Work Schedule: On-site Rate: $79, Based on experience, Open to C2C candidates as well. Responsibilities: Summary: The main function of a Software Engineer is to design, develop, implement, test, and maintain business and

Python Backend Engineer (React) - Remote

FlairTech Solutions

Remote

Contract

Role: Python with React Consultant Location: Remote Duration: Long Term Develop and maintain user interfaces using React.js . Design and build RESTful APIs and server-side logic using Python Experience using CI/CD tools Understanding of cloud platforms (Google Cloud Platform preferred, then Azure, then AWS) Integrate with databases (BigQuery, Spanner, MongoDB, etc)

Sr. FullStack Engineer W/React,Python,Google Cloud Platform - W2 Only

Cinergy Technology Inc

Remote

Contract

Greetings from Cinergy Technology Inc ! Full Stack Engineer - *REMOTE*- 12+ month contract Key skills: Strong Google Cloud Platform experience, expertise in React.js and Python Our client is seeking a Full Stack Software Engineer. Key Responsibilities: Develop and enhance modern front-end features using React.jsDesign and implement scalable, cloud-native RESTful APIs using PythonIntegrate portal features with AI chatbots and backend systemsCollaborate with data teams to access and manipulate da

Onsite- Fremont, CA- Lead Frontend Engineer- (IaaC,React.js,GraphQL)

Encora

Fremont, California, USA

Contract

Strong coding skills, navigating codebases with JavaScript-based frameworks and libraries such as React.js. Building and managing ci/cd pipelines and IaaC supporting services, web and mobile releases.experience in consuming GraphQL, RESTful, and RPPC APIs for data retrieval and manipulation.Experience building large scale scalable responsive and mobile-friendly web designs using CSS frameworks like Bootstrap, Foundation, or Materialize CSS.Experience operating in start-up settings, launching 0 t

Full Stack Architect (React/ Node)

Aptino

Remote

Contract

Role: Full Stack Architect (Frontend & Backend) Location: Remote Duration: 12 months+ Lead the design (architecture) of a desktop app for the client.Create API designs to ensure smooth communication between the frontend (React) and backend (NodeJS). Development using React, HTML5, CSS, TypeScript, and Bootstrap for the user interface, and NodeJS for backend APIs and integrations. 5+ years of experience working with both React and NodeJS. Be the main point of contact in the U.S. for a remote/offs

Onsite-Fremont, CA- Lead fullstack engineer(Golang, react,gRPC)

Encora

Fremont, California, USA

Contract

Backend : Strong coding skills, navigating codebases with different languages and tools (GoLang, gRPC, GraphQL), building and managing ci/cd pipelines and IaaC supporting services, web and mobile releases. Experience building comprehensive understanding of APIs, microservices, databases, integrations and other complex backend systems. Experience building large scale backend systems using AWS ecosystem tools and services. Frontend : Strong coding skills, navigating codebases with JavaScript-based

TWO Software Engineers (JavaScript, React, Python) in San Mateo, CA (Hybrid)

DBA Web Technologies

San Mateo, California, USA

Full-time

TWO Software Engineers (JavaScript, React, Python) in San Mateo, CA (Hybrid) 2+ to 5 years of Experience POSITION: TWO Software Engineers (JavaScript, React, Python) in San Mateo, CA (Hybrid) LOCATION: San Mateo, CA - HYBRID (3 days onsite, 2 days remote) SALARY: Excellent Compensation with benefits DURATION: Full-Time HYBRID (3 days onsite, 2 days remote) SKILLS: MS degree, JavaScript, TypeScript, React, Python, Backend, FrontendDESCRIPTION: POSITION: As a Software Engineer working on Product

Full Stack Engineer / React, Nodejs, AI / Onsite in West LA

Motion Recruitment Partners, LLC

Los Angeles, California, USA

Full-time

Are you passionate about making the world a healthier place through technology and AI? Our client is building a product that helps improve people's health through personalized experiences to create the best version of yourself. They are currently searching for a Full Stack Engineer to join their team full time and fully onsite in their West LA office. The ideal candidate has strong experience with TypeScript, Nodejs, React and must have relevant experience working with different AI tools. Requi

Sr. Full-Stack Developer (React.js, Next.js, MySQL and AWS) AI/ML

iSpace, Inc

Remote

Contract

Sr. Full-Stack Developer (React.js, Next.js, MySQL and AWS) Location : Full remote, but work PST time zone Duration : 6-12 Months Contract Description: Seeking a creative Senior Developer that can architect and develop large scale enterprise applications using React.js for front-end, Next.js, MySQL for backend. Will be working closely with a team of developers to validate and/or test new technologies to progress the efficiencies of the technical landscape. Requirements: 7+ years of experienc

Full Stack Lead (Healthcare App Modernization Node.js, React, TypeScript)

ADDSOURCE

US

Third Party

Job Title: Full Stack Lead Healthcare App Modernization (Node.js, React, TypeScript) Location: Remote (Preference: New York, NY) Experience: 10+ Years Education: BE/ME/BTech/MTech/BSc/MSc in Engineering or related field. Technical certifications are a plus. About the Role We are seeking a Full Stack Lead Developer with a strong backend focus to support a large-scale healthcare application modernization initiative. This role requires hands-on expertise in Node.js (TypeScript), along with experie

Sr. Product Security Engineer (Python/React/Azure)

Software Guidance & Assistance

San Jose, California, USA

Contract

Software Guidance & Assistance, Inc., (SGA), is searching for a Sr. Product Security Engineer for a CONTRACT assignment with one of our premier SaaS clients. This is a hybrid role with 2-3 days onsite per week and can work in any client location including San Jose, CA , Seattle, WA, New York, NY, Atlanta, GA, and Boston, MA Responsibilities : Develop and maintain scalable, performant full-stack applications using Python and React JS Collaborate with cross-functional teams to integrate A