Hire Next.js experts for your next project
We help teams scale and maintain complex web apps using Next.js—from migrations and architectural reviews to hands-on engineering.
Why you should use Next.js to build your application
Next.js gives product teams the rendering control, full-stack features, and performance capabilities needed to build fast, scalable applications—backed by React and proven in production.
Modern React architecture
Next.js supports Server Components, allowing you to move logic to the server for faster loads and leaner client bundles—without losing interactivity.
Modern React architecture
Next.js supports Server Components, allowing you to move logic to the server for faster loads and leaner client bundles—without losing interactivity.
Flexible rendering strategies
Choose the right approach per route—SSG, SSR, ISR, or Partial Prerendering—depending on your use case.
Flexible rendering strategies
Choose the right approach per route—SSG, SSR, ISR, or Partial Prerendering—depending on your use case.
Full-stack
Build frontend and backend logic in one place with API Routes, Server Actions, and edge functions—all colocated with UI components.
Full-stack
Build frontend and backend logic in one place with API Routes, Server Actions, and edge functions—all colocated with UI components.
We migrated AutoZone online platform to Next.js
AutoZone sought to boost their web app’s performance and SEO. We migrated their custom server-side rendering setup to Next.js, improving performance metrics and simplifying development.
200%
Better application performance
5x
Faster refresh time in development
What should you watch for when scaling with Next.js?
Next.js gives you a powerful set of tools, but at scale, product teams often struggle with architectural complexity, performance tuning, and delivery bottlenecks. These are the challenges we help teams solve.
Keeping up with new features
The ecosystem evolves fast—App Router, RSC, Server Actions, Turbopack. Staying current while shipping reliably takes experience and focus.
Hosting on your own cloud
Next.js is Vercel-optimized, but many teams need AWS or custom infrastructure. Matching the developer experience requires careful setup of routing, headers, and image/CDN layers.
Performance bottlenecks
Overusing client components, misusing middleware, or ignoring caching can lead to slow TTFB, layout shifts, or bloated JS.
Rendering model confusion
Without clear rules for when to use SSR, SSG, or ISR, teams often apply the wrong model—hurting performance or causing revalidation issues.
Hydration mismatches
RSC, suspense, and nested layouts can lead to subtle mismatches between server-rendered HTML and the client bundle—breaking UI or interactivity.
Incorrect use of cache
Next.js provides several caching mechanisms. Without clarity on how fetch, headers, and revalidation interact, teams risk stale data and unpredictable behavior.
Learn what’s new in Next 15
Next.js 15 brings refinements across App Router, Server Actions, and Turbopack—improving routing flexibility, data fetching ergonomics, and build performance. This podcast episode covers what’s changed and how to adopt it with confidence.
- Upgrade your app with new async request handling and cache behavior
- Integrate React 19 features like Compiler and Enhanced Forms support
- Improve observability and security with stable instrumentation
Hire experts to build, scale, and deploy your Next.js app
Build highly-optimized Next.js application
From routing and streaming to fine-tuned data fetching, we help teams architect and ship advanced Next.js applications with confidence.
Migrate Next.js application to App Router
We guide teams through restructuring routes, layouts, and data logic using the new App Router—ensuring a clean transition without regressions or routing bugs.
Deploy Next.js on your own infrastructure
From Vercel to AWS, Kubernetes, or edge functions, we support custom Next.js deployments and CI/CD flows, including dynamic image optimization and SSR caching layers.
Turn Next.js into native mobile application
Extend existing Next.js application to mobile with React Native, enabling cross-platform development.
Why leading companies work with Callstack
Meta Official Partners
We are official Meta partner for React Native, co-organizers of React Conf and hosts of React Universe Conf.
Working at scale
We know how to make React Native work at enterprise scale, both technically and organizationally.
React Native Core Contributors
We don’t just use React Native to build cross-platform apps, we help shape it for millions of developers.
Team at scale
We’re a team of 200+ engineers ready to start fast and scale with your needs.
Enterprise-friendly
We hold ISO certifications and follow strict security standards to make onboarding smooth and compliant.
Wide range of services
As a partner for your full application lifecycle, we offer a full range of services around React and React Native.
FAQs
Engineering teams working with Next.js often run into important technical questions—around architecture, performance, infrastructure, and scaling practices. Here’s how we typically help product teams stay fast and future-proof.
Yes—we regularly join teams to accelerate delivery, support migrations, or help implement new architectural patterns.
Absolutely. We’ve handled this migration at scale and know how to avoid common mistakes.
Yes. We’ve deployed Next.js to multiple leading providers, such as AWS—supporting both static and dynamic infrastructure.
Yes. We identify slow bundling patterns, simplify pipelines, and help adopt Turbopack or better asset strategies.
We help teams balance fetch caching, ISR, headers, and edge/CDN strategies—ensuring fast loads without stale data.
Yes. We audit dynamic imports, third-party libraries, and data-fetching logic to minimize JS and improve performance metrics.
Integrating Next.js into your mobile strategy?
We help teams build high-impact Next.js applications—from global-scale ecommerce platforms to content-rich sites.
