Node.js + React Developer – AI-First Platform Development (Claude Code CLI)

Posted 2 weeks ago

Worldwide

Summary

Overview We're looking for a developer to join ongoing work on a multi-app SaaS platform built on Node.js/Express/MySQL (backend) and React/Vite (frontend). The role is fully remote and async. This is not a traditional dev role. All development is done exclusively through Claude Code (Anthropic's AI CLI tool) — you write prompts, review AI-generated code, catch mistakes, guide the AI through complex tasks, and verify the output. You do NOT write code manually from scratch. If you're not already using Claude Code or a similar AI dev tool daily, this role isn't for you. --- What you'll work on - New features across 3 apps (fintech data, digital marketing, sports) - Backend entity creation and database migrations - REST API endpoints (Express) - Frontend pages and components (React, functional + hooks) - Bug fixes, refactors, test coverage (Node.js built-in test runner + Playwright E2E) - Cron jobs, integrations with external APIs --- Your actual day-to-day 1. Pick a task from the backlog 2. Open the terminal, launch claude in the project root 3. Prompt Claude through the implementation — reading existing code, understanding patterns, making decisions 4. Review every file Claude touches before accepting 5. Run tests, verify behavior, confirm nothing broke 6. Commit and report done You are the senior judgment layer on top of Claude. The AI does the typing; you do the thinking. --- Required - 3+ years experience with Node.js and React (you need to recognize good vs bad code) - Actively uses Claude Code, Cursor, Copilot, or similar AI dev tools in real work - Comfortable reading and understanding code you didn't write - Solid grasp of REST APIs, SQL schemas, React hooks - Can work async and independently — no hand-holding - Fluent written English Nice to have - Experience with Keycloak (auth), Vault (secrets), Docker - MySQL / relational DB schema design - Playwright or any E2E testing experience --- Engagement - Type: Hourly, long-term - Hours: Flexible, 10–30h/week depending on backlog - Communication: Async (written updates, no mandatory calls) - Rate: Open to proposals — looking for value, not cheapest --- How to apply In your cover letter, answer these two questions: 1. Which AI coding tool do you use daily, and give one concrete example of a non-trivial feature you shipped using it (what the task was, how you prompted your way through it). 2. What's something an AI dev tool consistently gets wrong, and how do you catch it? Applications without answers to both questions will not be reviewed.

  • More than 30 hrs/week
    Hourly
  • 6+ months
    Duration
  • Entry level
    Experience Level
  • $3.00

    -

    $8.00

    Hourly
  • Remote Job
  • Ongoing project
    Project Type
Skills and Expertise
Mandatory skills
Node.js
React
API
Activity on this job
  • Proposals:20 to 50
  • Last viewed by client:last week
  • Interviewing:
    0
  • Invites sent:
    0
  • Unanswered invites:
    0
About the client
Member since Feb 27, 2025
  • Slovenia
    11:56 AM

Explore similar jobs on Upwork

Software DeveloperHourly‐ Posted 7 months ago
ASP.NET MVC
Django
Python
AngularJS
JavaScript
jQuery
WordPress
Google Chrome Extension
React
CRM Development
Microsoft Dynamics 365
Microsoft Dynamics CRM
Microsoft Dynamics Development
Microsoft PowerApps
Single Sign-On
Full-Stack Development
Database Architecture
SaaS
Kotlin
Realm Database
NGINX
Rust
Solidity
Node.js
PostgreSQL

How it works

  • Post a job icon
    Create your free profile
    Highlight your skills and experience, show your portfolio, and set your ideal pay rate.
  • Talent comes to you icon
    Work the way you want
    Apply for jobs, create easy-to-by projects, or access exclusive opportunities that come to you.
  • Payment simplified icon
    Get paid securely
    From contract to payment, we help you work safely and get paid securely.
Want to get started? Create a profile

About Upwork

  • Rating is 4.9 out of 5.
    4.9/5
    (Average rating of clients by professionals)
  • G2 2021
    #1 freelance platform
  • 49,000+
    Signed contract every week
  • $2.3B
    Freelancers earned on Upwork in 2020

Find the best freelance jobs

Growing your career is as easy as creating a free profile and finding work like this that fits your skills.

Trusted by

  • Microsoft Logo
  • Airbnb Logo
  • Bissell Logo
  • GoDaddy Logo