What level of React.js expertise do I need for building an e-commerce site versus a simple business website?
A simple business website doesn't need React at all - basic HTML/CSS or WordPress is better. For e-commerce, you need intermediate to advanced React skills to handle product catalogs, shopping carts, user authentication, and payment integration. The complexity jumps significantly with features like real-time inventory, personalization, and mobile optimization.
How can I tell if a developer actually knows React.js well versus just putting it on their resume?
Ask them to walk through a recent React project's architecture and explain specific decisions they made. Look for deployed applications in their portfolio, not just code snippets. A skilled developer can explain performance trade-offs, testing strategies, and why they chose certain patterns. They should also understand when NOT to use React.
What can React.js actually do for my business, and what are its limitations?
React excels at building interactive, fast-loading web applications that feel like native apps. It's perfect for dashboards, e-commerce, user portals, and any site where users actively engage with content. However, React adds complexity and cost - it's overkill for simple websites, requires JavaScript expertise to maintain, and needs proper setup for good SEO performance.
How does React.js work with the tools and systems my business already uses?
React integrates well with most modern systems through APIs. It can connect to any database, CRM, payment processor, or business tool that has an API. Common integrations include Stripe for payments, Salesforce for CRM data, Google Analytics for tracking, and various CMSs for content. The key is having a developer who understands both React and API integration.
How long does it typically take to build or migrate to a React.js application?
A simple React application might take 4-8 weeks, while complex e-commerce or SaaS platforms often need 3-6 months. Migration from existing sites depends on complexity - simple conversions take 6-12 weeks, but rebuilding complex functionality can take 6+ months. Factor in testing, performance optimization, and team training time.
What ongoing maintenance and support will I need after my React.js project is completed?
React applications need regular updates for security patches, dependency updates, and new feature development. Budget for 10-20% of initial development cost annually for maintenance. You'll also need someone who can troubleshoot issues, optimize performance as you grow, and adapt the application as your business needs evolve. Many businesses keep a React developer on retainer or hire for ongoing support.