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Flex Remote React Js Jobs in California (NOW HIRING)

Vercel

Forward-Deployed Engineer

San Francisco, CA · On-site +1

Lead complex frontend migrations - modernizing legacy React, Vue, or other frameworks to Next.js ... Remote Friendly - Work with teammates from different time zones across the globe. * We will provide ...

De Circle

UI/UX Engineer - Semiotic.ai

San Francisco, CA · On-site +1

$110K - $137K/yr

Fully remote and flexible work environment. * Opportunity to shape the UI and UX of products that ... Proficiency in React, Typescript, and Next.js. * Strong design skills with experience in Figma ...

TIKAJ

HTML5/CSS3 and good understanding of JS/TypeScript in NodeJS and ReactJS. * Experience in REST ... Hands-on experience in UI development using Vue/React. * Understanding of microservices and ...

TX Labs

Frontend Engineer

San Francisco, CA · On-site +1

Develop and maintain responsive and performant web applications using React (Next.js or similar ... A flexible work environment with remote work options. * Opportunity to work with a passionate and ...

TX Labs

Develop and maintain responsive and performant web applications using React (Next.js or similar ... A flexible work environment with remote work options. * Opportunity to work with a passionate and ...

Hired Recruiters

Senior Software Engineer

San Diego, CA · Remote

$120K - $180K/yr

Location: 100% US/Canada remote * In Office Locations: San Francisco, San Diego, Toronto * ~60 ... Knowledge of multiple back-end languages (Node JS, Python) and JavaScript frameworks (React)

New

Fuser

Sr. Full Stack Engineer

Los Angeles, CA · On-site +1

$80K - $180K/yr

React 19, React Router 7, Zustand, React Flow, Three.js Backend: Cloudflare Workers, tRPC, Drizzle ... Remote-friendly - we welcome candidates anywhere in the U.S. * LA-based core team - the team works ...

Everglade Works

Software Engineer

San Francisco, CA · Remote

$60 - $80/hr

Remote Software Engineer (USA Only) | $60 - $80 per hour Are you a software engineer who thrives in ... Experience with front-end frameworks (React, Angular, or Vue.js) is a plus. * Strong understanding ...

Sparks Wiz Limited

Full Stack Developer

San Francisco, CA · On-site +1

$55 - $60/hr

... React, Angular, Vue.js). * Build and maintain server-side applications using languages and ... Excellent communication skills with the ability to work effectively in a remote or collaborative ...

Rainier Recruiting

Software Engineer

San Francisco, CA · Remote

Location: 100% remote, anywhere in the US, but observing 10am-3pm PST working hours Compensation ... Contribute to new initiatives built in Next.js with React and TypeScript * Ensure seamless data ...

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All JobsReact Js JobsFlex Remote React Js JobsFlex Remote React Js Jobs in California

Flex Remote React Js information

What is the difference between Flex Remote React Js vs Flex Remote Front End Developer?

AspectFlex Remote React JsFlex Remote Front End Developer
Required SkillsReact.js, JavaScript, HTML, CSSJavaScript, HTML, CSS, React.js (often)
Work EnvironmentRemote, collaborative teams, tech companiesRemote or hybrid, tech and digital agencies
Industry UsageWeb development, startups, tech firmsWeb development, digital agencies, corporate IT
CertificationsReact certifications, JavaScript coursesJavaScript, front-end frameworks, UI/UX courses

Flex Remote React Js and Flex Remote Front End Developer roles share many skills like JavaScript, HTML, and CSS. However, React Js specialists focus specifically on React.js library expertise, while Front End Developers may work with multiple frameworks and broader UI/UX skills. Both roles are remote, often in tech industries, but React Js roles are more specialized in React.js projects.

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Flex Remote React Js jobs near you

Forward-Deployed Engineer

Vercel

San Francisco, CA • On-site, Remote

Full-time

Medical, PTO

Re-posted 27 days ago

Job description

About Vercel:
Vercel is the agentic infrastructure company. We free people and agents to ship what's next.
For more than a decade, Vercel has shaped how the web is built. As the team behind Next.js, v0, and AI SDK, we create products that help builders move from idea to production with speed, security, and exceptional developer experience.
Now, software is entering a new era, and the next generation of products will not just be used by people. They will be built, extended, and operated by agents.
We are building the platform for that future, trusted by companies like OpenAI, PayPal, Ramp, Supreme, and millions of developers worldwide. Whether you're building our products, supporting our customers, growing our community, or shaping our story, you'll help define what comes next.
About the role:
We are looking for a Senior Forward-Deployed Engineer to join our Professional Services team. This role is focused on working directly alongside developer teams in our most strategic enterprise customers to drive transformational outcomes across frontend modernization, platform migrations, and AI adoption.
In this role, you will lead complex Next.js migrations, architect high-performance applications, and build production AI solutions - all within customer environments. You'll work hands-on-keyboard alongside customer teams, whether you're migrating a legacy React application to App Router, conducting a deep-dive code audit, or deploying production agents using Vercel's eve framework and AI SDK.
Our Forward-Deployed Engineers operate with high agency and autonomy. You'll navigate ambiguous enterprise environments, assess technical debt, design migration strategies, and deliver measurable business value - all while building long-term relationships that expand our partnership with each customer.
There are two main profiles for this role: Next.js experts, and AI builders. Next.js experts work on deep customer code optimization, performance audits, AEO and SEO, and teaching customers how to build Next.js apps with AI instrumentation - such as Claude Code, Codex, Cursor, etc with Next.js and Vercel agent skills. The AI builder profile is less focused on deep Next.js experience, and more on identifying, evangelizing, and building AI applications and agentic workflows. Your job in this role will be to understand customers' businesses, scope, design, and build AI agents, and prove their value. The two profiles are not mutually exclusive and we appreciate expertise in both.
You will report to the Global Manager of Forward Deployed Engineering. This role is remote-first with travel to customer sites expected occasionally. Travel requirements vary, but most of our engineers travel no more than 3-4 days every other month.
What you will do:
  1. Build production AI solutions using Vercel's eve framework, AI SDK, and AI Cloud infrastructure, including conversational interfaces, production agents, MCP servers, and agentic workflows that transform customer operations.
  2. Lead complex frontend migrations - modernizing legacy React, Vue, or other frameworks to Next.js, including Pages to App Router transitions, incremental adoption strategies, and large-scale codebase transformations. Automation of migrations is key to engineering efficiency.
  3. Conduct code audits and help analyze and improve website performance, analyzing customer codebases for performance bottlenecks, architectural anti-patterns, and optimization opportunities - delivering actionable roadmaps that drive measurable improvements.
  4. Architect and implement high-performance Next.js applications, leveraging App Router, Server Components, streaming, ISR, and advanced rendering strategies to meet enterprise scale and performance requirements.
  5. Embed with strategic customers to build production applications - working within their systems, understanding their constraints, and shipping TypeScript code that goes live.
  6. Drive enablement and knowledge transfer through workshops, pair programming, and documentation - ensuring customer teams can extend and maintain solutions independently.
  7. Navigate complex enterprise environments by building relationships with stakeholders across engineering, product, and executive teams - translating technical capabilities into business outcomes.
  8. Contribute to our service evolution by identifying repeatable patterns, building reusable components, and sharing implementation insights back to Product and Engineering teams.
About you:
  • 6+ years of experience in software engineering with at least 2 years in a customer-facing technical role (consulting, solutions architecture, forward deployed engineering, or technical founder experience).
  • Experience using AI instrumentation such as harnesses, skills, and MCPs ****to build and deploy web applications, backend systems, and/or agentic workflows.
  • High agency with comfort in ambiguity - you thrive when given a problem to solve rather than a task to complete, and you can navigate complex organizations to create a plan and drive a project.
  • Exceptional communication skills with the ability to conduct technical discovery, present to executives, mentor engineers, and build lasting customer relationships - all with a low-ego, collaborative approach.
  • Business acumen to understand customer objectives, translate technical capabilities into ROI, and identify expansion opportunities throughout engagement lifecycles.
  • Willingness to travel occasionally to customer sites for embedded work and relationship building.

Next.js-focused Candidates:
  • Expert-level TypeScript skills - You are fluent in TypeScript and have strong opinions on type safety, patterns, and tooling.
  • Deep expertise in Next.js, with a proven track record of architecting and delivering complex applications using App Router, Server Components, server-side rendering (SSR), static generation (SSG), and incremental static regeneration (ISR), and personalization.
  • Demonstrated experience leading frontend migrations - you've converted legacy applications to Next.js, navigated incremental adoption strategies, and understand the challenges of migrating large codebases in production environments.
  • Mastery of React and its ecosystem, including advanced state management, performance optimization, and modern patterns like streaming, suspense, and concurrent features.

AI-focused Candidates:
  • Production experience with LLMs and AI applications, including agent development, cloud sandbox & filesystem agent patterns, human-in-the-loop patterns, and value optimization. Familiarity with Vercel's eve framework and AI SDK is strongly preferred.
  • Ability to identify business cases for AI agents - many customers need guidance not only on how to build AI agents, but where and why to use AI. You'll need to listen and understand a day-in-the-life of customers' teams to build proposals.
Bonus if you:
  • Have led enterprise AI transformation initiatives, including building production agents that automated manual processes or replaced legacy systems.
  • Have taught others how to develop software using AI, best practices for building agents, harnesses, skills, and MCPs.
  • Have led large-scale migrations from legacy frameworks (Create React App, Gatsby, custom webpack setups) to Next.js in enterprise environments.
  • Have expertise in performance optimization and Core Web Vitals, with experience diagnosing and fixing LCP, CLS, and INP issues at scale.
  • Have contributed to the Next.js, React, or AI SDK open-source projects, or maintain popular related libraries.
  • Have experience with enterprise deployment patterns including security reviews, compliance requirements, and multi-region architectures.
  • Have a background in financial services, healthcare, retail/e-commerce, or media - industries with complex frontend ecosystems and growing AI adoption.
  • Have spoken at conferences or published thought leadership on frontend architecture, migrations, or AI applications.
Benefits:
  • Great compensation package and stock options.
  • Inclusive Healthcare Package.
  • Learn and Grow - we provide mentorship and send you to events that help you build your network and skills.
  • Flexible Time Off - Flexible vacation policy with a recommended 4-weeks per year, and paid holidays.
  • Remote Friendly - Work with teammates from different time zones across the globe.
  • We will provide you the gear you need to do your role, and a WFH budget for you to outfit your space as needed.

The San Francisco, CA base pay range for this role is $137,000.00 - $207,000.00. This salary range is an estimate. Actual salary will be based on job related skills, experience and location. Pay ranges outside San Francisco may be adjusted based on employee location. The total compensation package also includes benefits and equity-based compensation. Your recruiter can share more about the specific pay range for your location during the hiring process.
Vercel is committed to fostering and empowering an inclusive community within our organization. We do not discriminate on the basis of race, religion, color, gender expression or identity, sexual orientation, national origin, citizenship, age, marital status, veteran status, disability status, or any other characteristic protected by law. Vercel encourages everyone to apply for our available positions, even if they don't necessarily check every box on the job description.

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