What does Nexis Build do?

Nexis Build designs and develops custom websites, web applications, mobile apps and ecommerce stores for businesses. One senior team handles strategy, design, development, launch and ongoing support.

How do I start a project with Nexis Build?

Send a project inquiry through the contact page with your goals, budget and timeline. A senior team member personally replies with clear next steps.

Which technologies does Nexis Build use?

Next.js, React and TypeScript for websites; NestJS for backends; Shopify and WordPress for stores and content sites; React Native for mobile apps; PostgreSQL and MongoDB for data; deployed on Vercel and AWS.

Does Nexis Build support websites after launch?

Yes. Ongoing maintenance, monitoring, security updates and improvement work are offered so your website stays fast, secure and current after launch.

Next.js Development · Nexis Build

Service 03 / 11

Production-grade Next.js with the App Router, React Server Components and edge rendering — engineered for top Core Web Vitals and search visibility.

Start a project See how we work

Next.js 15React 19App Router

Overview

What you get.

Blazing fast
SEO ready
Edge optimized

Next.js gives you the best of static and dynamic: pages that are pre-rendered for speed and SEO, with server-side logic, streaming and incremental updates where they matter.

We architect around the App Router — server components by default, client components only where interactivity demands it — so the JavaScript your visitors download stays small and your pages stay quick.

Next.js is not just a faster React. Routing, caching, image handling, metadata and data fetching are first-class, which removes entire categories of glue code and configuration your team would otherwise maintain.

We pay particular attention to caching strategy. Choosing what is static, what is cached and revalidated, and what must be dynamic is the difference between a site that feels instant at 10 visitors and one that still feels instant at 10,000.

Why it matters

The problem we solve.

Speed is a ranking and revenue factor

Faster first paint and better Core Web Vitals improve both search visibility and the share of visitors who stay and convert.

One codebase, front to back

Pages, API routes and server actions live together in TypeScript, which shortens delivery and reduces integration bugs.

SEO without workarounds

Server-rendered HTML is immediately readable by crawlers and social previews — no prerender hacks.

A large, stable ecosystem

Backed by Vercel and widely adopted, so hiring, libraries and long-term support are low risk.

Scope of work

What’s included.

App Router architecture

Nested layouts, route groups, parallel and intercepting routes.

Rendering strategy

SSG, SSR, ISR and streaming chosen per route for the best speed/freshness trade-off.

Server Actions & Route Handlers

Type-safe mutations and REST/webhook endpoints without a separate server.

Authentication & authorisation

Session handling, OAuth/SSO, role-based access and middleware guards.

Image, font & script optimisation

next/image, next/font and script strategies tuned for LCP and CLS.

SEO & i18n

Metadata API, dynamic sitemaps, OG images and localised routing.

Ideal clients

Who this is for.

Content-heavy sites

Publishers, marketplaces and directories with thousands of pages that need to be fast and indexable.

SaaS products

Marketing site plus authenticated app in one framework with shared components.

Ecommerce brands

Custom storefronts where speed and SEO directly drive revenue.

Teams migrating from CRA or Pages Router

Projects held back by slow builds, poor SEO or an aging architecture.

How the project runs

Our process.

Transparent milestones, weekly demos and one point of contact from kickoff to launch.

01
Architecture review
Data sources, caching layers, rendering modes and hosting model are decided up front.
02
Foundation
Monorepo/TypeScript strict config, linting, testing and CI with preview deployments.
03
Feature build
Vertical slices — UI, data fetching and API — delivered in weekly demoable increments.
04
Data & caching
Fetch caching, revalidation tags and edge caching tuned against real traffic patterns.
05
Testing
Unit (Vitest), integration and end-to-end (Playwright) coverage on critical flows.
06
Deploy & observe
Zero-downtime release, Web Vitals RUM, error tracking and alerts.

Quality bar

Standards we hold.

Server-first by default

Client components only where interactivity requires, keeping bundles lean.

Strict TypeScript

End-to-end types from database to component, with no `any` leaking through.

Preview on every PR

Each change gets its own deployed URL so design and product review real software.

Observability built in

Real-user Web Vitals, error tracking and structured logs from the first deploy.

Tooling

Technology stack.

Framework

Next.jsReact 19TypeScript

Data

PostgreSQLPrisma / DrizzleRedis

Platform

VercelAWSDocker

Quality

PlaywrightVitestESLint

Glossary

Terms we use.

RSC (Server Components): React components that render on the server and ship no client JavaScript.
ISR: Incremental static regeneration — static pages refreshed in the background on a schedule or on demand.
Streaming / Suspense: Sending HTML in chunks so users see content before the whole page is ready.
Edge runtime: Code executed on servers geographically close to the user for low latency.
Hydration: Attaching React's interactivity to server-rendered HTML.
Core Web Vitals: Google's LCP, INP and CLS metrics for loading, responsiveness and visual stability.
Route Handler: A server endpoint defined inside the App Router, used for APIs and webhooks.
Middleware: Code that runs before a request completes — used for auth, redirects and localisation.

FAQ

Common questions.

Can you migrate our existing site to Next.js?

Yes. We migrate incrementally — preserving URLs, redirects and rankings — so there's no big-bang risk.

Next.js or a plain React SPA?

If SEO, first-load speed or content matters, Next.js. For logged-in internal tools, a SPA can be enough; we'll tell you honestly.

Where will it be hosted?

Typically Vercel, but we also deploy to AWS, Docker/Kubernetes or your own infrastructure.

Do you use the App Router or Pages Router?

App Router for all new work. For existing Pages Router projects we migrate route by route, since both can coexist.

How do you handle SEO on dynamic content?

Per-page metadata via the Metadata API, dynamic sitemaps, canonical URLs, structured data and Open Graph images generated at build or request time.

Can you integrate our existing backend or CMS?

Yes. Next.js sits comfortably in front of REST, GraphQL, headless CMS and legacy APIs, with caching layered in so slow upstreams don't slow your pages.

Working together