Chart.js Jobs

BI Report Builder — React/FastAPI (Tableau-experienced only) We're building a visual, drag-and-drop report builder inside our enterprise HRMS SaaS — think simplified Tableau embedded in a web app. If you've only done basic dashboards, this isn't the role. What we're building: A canvas where users drag data entities (employees, invoices, timesheets, etc.), connect them visually, pick columns, configure chart types, and generate cross-entity reports — all in-browser without SQL knowledge. What's already done: Backend already supports multi-source SQL JOINs with full injection protection and tenant isolation 22 pre-aggregated data entities with 17 predefined valid join relationships Chart rendering components already built (bar, line, pie, area, ...

We have a binary trading website with a working graph, but we want to improve its performance and fix some issues. The goal is to make the graph smoother, more responsive, and professional like top trading platforms. Tasks: 1. Optimize Graph Smoothness: • Make real-time updates smooth without jumps or lag. • Use incremental updates instead of full re-rendering. • Improve animations using requestAnimationFrame or similar methods. 2. Improve Performance: • Limit the number of candles loaded for efficiency. • Compress or aggregate older data for smoother scrolling. • Ensure fast rendering even with live data updates. 3. Bug Fixes: • Fix price jumps or candle overlaps. • Resolve any WebSocket or data feed issues. • Sync server and clien...

---------------------- Notice: Automatic proposals using AI are immediately rejected. ---------------------- We are building a retirement savings calculator web application that helps users determine how long their savings will last in retirement. Users will enter basic financial inputs (age, savings, spending, etc.), and the application will run a projection model and display the results visually. The app will also offer a paid downloadable PDF report summarizing the results. This is an MVP project with well-defined requirements. Core Features The application will include: 1. Retirement calculator Users enter: • current age • retirement age • life expectancy • current savings • monthly spending • expected investment return • inflation rate The system w...

I’m building a Python-powered Lead Management CRM and now need a React specialist to bring the user side to life. You’ll craft a vibrant, colorful interface from scratch (no wireframes exist yet) and wire it up to my already-developed REST APIs. is my go-to for the basic analytics, so experience there is important. What I need you to deliver: • Responsive login, dashboard and lead list pages • Forms to add, edit and update leads, including status changes (new, contacted, converted, etc.) • At-a-glance statistics and visualizations inside the dashboard • Clean component structure, sensible state management and clear API integration hooks The project moves fast—ideally finished in about two to three weeks—so regular check-ins and a shar...