There is no question about the growing need for highly efficient websites today. Every business wants to be able to provide a website that is fast, scalable, and optimized for search engines, and Next.js is the perfect solution for doing just that. This is why many companies are now in need of skilled Next.js developers capable of creating powerful applications based on React. However, with so many candidates offering their services, how do you distinguish the professionals from the amateurs? It’s all about knowing what skills you should look for before hiring any developer.
Here are some important skills you should assess when hiring Next.js developers.
Strong Foundation in React.js
Next.js is a framework based on React. Therefore, before hiring any candidate for your Next.js project, you need to be sure that he or she has a good understanding of the basics of React:
- Hooks (useState, useEffect, useContext, useMemo, useCallback)
- Lifecycle of a component and its re-rendering
- Passing props, managing state, and using the Context API
- Functional components and JSX syntax
- Code splitting with React.Suspense
Otherwise, there is no point in discussing Next.js features.
In-depth Knowledge about Next.js Core Features
In case you decide to hire Next.js developers, then you should expect them to have practical experience with Next.js core features. These include:
Rendering Techniques
- Server-Side Rendering (SSR) through getServerSideProps
- Static Site Generation (SSG) through getStaticProps and getStaticPaths
- Incremental Static Regeneration (ISR) for mixed workflows
- Client-Side Rendering (CSR) for dynamic web pages
Pages Router and App Router
The introduction of the App Router in Next.js 13+ makes it essential that the developer has knowledge of both Pages Router and the new App Router framework, including layout, nesting, server-side components, and client-side components.
API Routes
Developers can build API routes using Next.js. Competent developers will be able to develop and secure API routes and connect them with databases and external APIs.
Proficiency in TypeScript
TypeScript has become the industry standard when working with JavaScript on large projects. If you hire Next.js developers to develop production-ready apps, it is crucial to check whether the candidates have good TypeScript skills. Check out whether they can:
- Work with strong typing in props, API calls, and state management
- Define interfaces and type aliases
- Work with generics and utility types
- Develop type-safe API route handlers in Next.js
TypeScript helps developers create more bug-free and maintainable apps.
|Also read: Why Hire Next.js Developers for SEO-Optimized Web Applications
Performance Optimization Knowledge
One of the main reasons companies choose Next.js is its great performance. A professional developer will be able to leverage the framework's capabilities. Before you hire Next.js developers, make sure they know how to:
- Optimize images with next/image
- Optimize fonts with next/font
- Perform code splitting, tree-shaking, and bundle size optimization
- Implement caching strategies for SSR, ISR, and API routes
- Measure and optimize Core Web Vitals (LCP, FID, CLS)
- Apply lazy loading to components and third-party scripts
Professional developers will help you avoid costly mistakes later on.
SEO and Meta Tags Management
Next.js is very popular due to its amazing SEO abilities. In addition to being able to develop on Next.js, an experienced developer should know how to:
- Manage meta tags with the help of the Metadata API (available in Next.js 13 and higher) or next/head
- Use Open Graph and Twitter Card meta tags
- Make dynamic sitemaps and robots.txt
- Create search engine-friendly pages
- Render pages server-side that need to appear on search engines
It goes without saying that if your product requires good SEO performance, you should pay particular attention to this skill set when you hire Next.js developers.
State Management Skills
State management can become quite complex for large projects. Thus, competent Next.js developers will be able to work with:
- React Context API for simple state management
- Redux Toolkit/Zustand for scalable state management
- React Query/SWR for server state management/data fetching
- Jotai or Recoil for atomic state patterns
The ability to choose the right tool for the right use case demonstrates seniority and architectural thinking.
Deployment & DevOps Knowledge
Deploying your app is more than writing the code. You should be looking for candidates that know how to deploy their Next.js apps:
- on platforms such as Vercel, AWS, or Docker
- manage environment variables for various deployment phases
- use CI/CD with tools like GitHub Actions
- monitor and track errors with services like Sentry or Datadog
- create edge functions and middleware
Soft Skills to Look For
Next.js developers have to be good at programming, but what else? You can expect the most successful candidates to have:
- excellent communication skills and ability to document their reasoning
- collaborative attitude to work within cross-functional teams
- problem-solving mindset based on knowledge of business needs
- willingness to keep up with changes in Next.js
- code review experience
| Also read: RAG, Chatbots, or Workflow Automation? Choosing the Right AI Approach
Final Thoughts
The choice to hire Next.js developers must come hand in hand with having a clear idea of what the best one is. With a combination of React expertise, knowledge about how to render components, and even experience with TypeScript, optimization techniques, and deployment methods, a great developer will be well-rounded in everything he does.
With this checklist at your disposal, finding the best Next.js developers will become a whole lot easier. And this way, you will have your high-quality projects ready in no time!
No matter if it's your very first time hiring Next.js developers or if you already have some people working in your company, the choice to do it right from the start is always the best one for your products' future.