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Full-stack Developer / security engineer needed to finalize Claude Code Web App
About the project We've built a two-sided marketplace platform connecting interim professionals with clients (it's done in Claude Code). The app handles user authentication, role-based access (...
Client: Netherlands · ⭐ 4.87 · 4 days ago
🌎 AI Vibe Coder for Multi-Tenant Marketing Distribution & Analytics Platform
Greetings Upworkers! Do you speak verbal English? Live to provide solutions? Seeking Laravel Full-Stack Developer to build a production-ready multi-project marketing distribution and analytics plat...
Client: United Kingdom · ⭐ 4.90 · 4 days ago
Front-end Developer with React and Vite
We are seeking a skilled front-end developer to enhance our web application using React and Vite. The ideal candidate will have experience in modern web development, focusing on performance and user e...
Client: Ethiopia · ⭐ 0.00 · 4 days ago
Senior Backend Engineer. WhatsApp Business API + AI Message Routing System
We operate a SaaS business and are looking to build a lightweight internal operations tool that helps route incoming WhatsApp customer messages to the correct team members. This is NOT a chatbot proj...
Client: ARE · ⭐ 4.91 · 4 days ago
React/Next.js & Supabase Developer Needed for Educational Platform
We are looking for an experienced React/Next.js developer to build a modern, responsive, and user-friendly Admin Dashboard. The frontend should be developed using React.js or Next.js, while the backen...
Client: United Kingdom · ⭐ 4.98 · 4 days ago
Senior Full Stack Developer for Web & Mobile App — Next.js / React Native / MongoDB
We are looking for an experienced senior full stack developer to help build, improve, and deploy our web and mobile application. The project includes a web platform, iOS/Android mobile apps, backend A...
Client: South Korea · ⭐ 0.00 · 4 days ago
AI Consultant
We are looking for an experienced AI Consultant with strong expertise in Natural Language Processing (NLP) and Generative AI to help design, implement, and optimize AI-driven solutions. The ideal cand...
Client: PAK · ⭐ 5.00 · 4 days ago
AI Engineer for AI Feature Integration
We are seeking an AI Engineer to help us build and integrate intelligent, AI-powered features into our web, mobile, and cloud-based applications. The ideal candidate has hands-on experience with LLMs,...
Client: United States · ⭐ 4.99 · 4 days ago
Backend Development (NO WORDPRESS)
I am creating a lead-generating website. So far, I have created 4 pages: Admin, Homepage, Contractor dashboard, and Homeowner dashboard using mainly html. I have the scripts for each. However, as is,...
Client: USA · ⭐ 5.00 · 4 days ago
Python Script for Real-Time Smart Contract Event Listener
We are looking for a backend developer to build a lightweight, asynchronous Python script using Web3.py to listen to live state changes on a specific smart contract address. The script should trigger...
Client: United Kingdom · ⭐ 5.00 · 4 days ago
Senior Backend Engineer for Real Estate Data Sync
We operate a real estate listings platform that ingests data from MLS/IDX feeds, and we're experiencing two critical backend issues that are actively affecting our operations. We need an experienced s...
Client: United States · ⭐ 0.00 · 4 days ago
Senior TypeScript / Next.js Engineer for Payments Integration & Go-Live (Existing Codebase)
Overview I'm looking for a senior developer to help take an existing payments web app to launch. The codebase is TypeScript / Next.js (App Router) / Node.js / Prisma / PostgreSQL, built to a high stan...
Client: United Kingdom · ⭐ 0.00 · 4 days ago
WordPress Support for Small Association
Wir sind ein kleiner Verein und suchen nach Unterstützung bei der Bedienung von WordPress. Deutschsprachige Kommunikation ist erforderlich. Wir möchten von einem Freelancer angeleitet werden, um unser...
Client: Switzerland · ⭐ 5.00 · 4 days ago
Full Stack SaaS Developer - Node.js, React, Laravel, Stripe, Kafka & RabbitMQ
We are looking for a Lead Full Stack SaaS Developer to take ownership of key platform initiatives and help scale our SaaS product. Tech Stack: - Node.js - React.js - Laravel (PHP) - Stripe - Kafka -...
Client: India · ⭐ 5.00 · 4 days ago
Typescript and Node.js Engineer
We are seeking a skilled Typescript and Node.js engineer with 4-5 years of experience, located in Latin America. The ideal candidate will have experience in startups and be proficient in other program...
Client: United States · ⭐ 0.00 · 4 days ago
Wallex Wallpapers: Add Home Delivery as Order Line Item and Update Order Emails
We're looking for a developer to make a couple of server-side changes to how home delivery appears in our orders and order emails for our wallpapers business. Fixed price of $50 USD, paid as one miles...
Client: Israel · ⭐ 4.96 · 4 days ago
Senior Full-Stack Developer Needed – Artwork Catalog & Automated Product Mockup System
We are looking for an experienced Full-Stack Developer to build an automated artwork and product management platform connected to Shopify. The system will: - Import artwork from external providers -...
Client: Norway · ⭐ 5.00 · 4 days ago
React/Vite + Supabase Performance Optimization
We are seeking an expert developer to enhance our React/Vite + Supabase web app's performance under heavy traffic. Responsibilities include implementing caching, optimizing database queries, and ensur...
Client: United States · ⭐ 0.00 · 4 days ago
OpenClaw Integration for AI Model Improvement(Urgent)
We are looking for an experienced OpenClaw specialist to help improve and optimize our custom AI model. This is an urgent fixed-price task that needs to be completed within a couple of days, but the w...
Client: BRA · ⭐ 0.00 · 4 days ago
Wallex Wallpapers: Business Invoice Option at Checkout (Frontend, Email and CRM)
We're looking for a full-stack developer to add a business-invoice option to the checkout flow on our wallpapers e-commerce website. Fixed price of $50 USD, paid as one milestone on completion. At a...
Client: Israel · ⭐ 4.96 · 4 days ago