Javascript

Looking react developer to design and development of a modern, responsive, and high-performance web application using React.js The work will involve UI development, API integration, and performance optimization... (Budget: $10 - $30 AUD, Jobs: API Development, Frontend Development, JavaScript, PHP, React Native, React.js, RESTful API, Web Application, Web Development, Website Design)

I’m looking for a dependable script or lightweight application that can collect sports betting odds from a web-based platform I have access to and export them into a structured Excel (XLSX) file. The... (Budget: €100 - €150 EUR, Jobs: Automation, Data Extraction, Data Processing, Excel, JavaScript, Python, Selenium, Software Architecture, Web Scraping)

I run a service-based website that already processes card payments, but I now want to add crypto support through the official NowPayments API. The sole purpose of this integration is to let customers pay one-time invoices for my services; I do not need recurring billing or donation flows... (Budget: $30 - $250 USD, Jobs: API Integration, Cryptocurrency, JavaScript, MySQL, Payment Gateway Integration, PHP, Web Development)

I’m putting together a single Google Sheet that our 10-person team can use daily to stay on top of every assignment. The sheet has to do more than just list tasks—it must actively help us manage the work... (Budget: ₹1500 - ₹12500 INR, Jobs: Automation, Data Visualization, Excel, Google Sheets, JavaScript, PHP, Project Management, Software Architecture)

Project: Swiss Services Marketplace Platform Tech Stack: ∙ Frontend: React 18, TypeScript, Vite, Tailwind CSS ∙ Backend: Supabase (PostgreSQL, Auth, Storage, Edge Functions) ∙ Deployment: Vercel (planned) Current Status: ~80% complete, built with Lovable (AI development tool) Scope of Work: 1... (Budget: $250 - $750 USD, Jobs: API Development, Backend Development, Database Management, Frontend Development, HTML, JavaScript, PHP, PostgreSQL, Tailwind CSS, Website Design)

1. OBJETO DA CONTRATAÇÃO Contratação de profissional qualificado para execução completa das otimizações técnicas remanescentes após a troca do tema, com o objetivo de: atender às métricas exigidas pelo... (Budget: $400 - $1000 USD, Jobs: CSS, Elementor, HTML5, JavaScript, Performance Tuning, SEO Auditing, Software Performance Testing, UX / User Experience, White Hat SEO, WordPress)

My offline product-selling app needs a dedicated admin panel focused on inventory control. Within the panel I have to be able to add new products, update existing items, and delete products quickly, all without touching the database directly... (Budget: ₹12500 - ₹37500 INR, Jobs: AngularJS, API Development, Database Management, Django, HTML, JavaScript, Laravel, MySQL, Node.js, Web Development)

Role: Full Stack Software Engineer (Frontend) Key Responsibilities • Develop, deploy, and maintain user interfaces using React (Native) and Typescript • Implement designs for web apps and embeddable... (Budget: ₹400 - ₹750 INR, Jobs: AngularJS, CI/CD, Full Stack Development, HTML, JavaScript, Python, REST API, Typescript)

I need a simple, reliable search form built directly inside Google Sheets that lets me type any number (or partial number) and have the matching rows appear instantly. The sheet will hold only numeric... (Budget: $10 - $30 USD, Jobs: Data Analysis, Data Management, Excel, Google Chrome, Google Sheets, JavaScript, PHP, Software Architecture)

I'm seeking an experienced backend developer to audit my existing Node.js backend. The audit should cover the following areas: - Security: Identify vulnerabilities and suggest improvements. - Performance: Analyze and recommend enhancements for speed and efficiency... (Budget: ₹600 - ₹1500 INR, Jobs: AngularJS, Backend Development, Documentation, JavaScript, Node.js, NoSQL Couch & Mongo, Security, Software Testing)