Next.js Development Company
Senior Next.js engineers building high-performance web applications, SaaS platforms, and marketing sites with sub-1-second load times and strong Core Web Vitals.
Next.js has become the default framework for production web development for good reasons — server-side rendering, the App Router, built-in optimisation, and an ecosystem that matches the way modern web products are built. When it is used well, applications are fast, SEO-friendly, and maintainable. When it is used poorly, the same features that make Next.js powerful become sources of complexity that slow development and introduce production issues.
Wolk Inc is a Next.js development company that has built on Next.js since the App Router was introduced. We use TypeScript throughout, server components where they help, client components where interactivity requires it, and a testing and CI setup that catches regressions before they reach production.
What we build with Next.js
Marketing websites and landing pages with CMS integration (Sanity, Contentful, or Notion-backed), server-side rendering for strong Core Web Vitals, and structured data for SEO performance. SaaS application frontends with authenticated routes, role-based access, dashboard pages, and real-time data requirements. Full-stack applications using Next.js API routes or tRPC for the backend layer alongside PostgreSQL and Prisma. Headless commerce fronts on top of Shopify Storefront API or custom product catalogues.
We bring the same engineering standards to every category: TypeScript throughout, tested components, documented architecture decisions, and deployment configurations that support continuous delivery.
Performance and Core Web Vitals in Next.js
Performance is not a post-launch checklist item — it is built into the architecture from the start. Wolk Inc configures image optimisation through next/image, implements dynamic imports for component code splitting, uses the Next.js font subsetting system, and configures CDN caching at the edge so Time to First Byte is under 200ms globally.
Core Web Vitals — Largest Contentful Paint, Cumulative Layout Shift, and Interaction to Next Paint — are measured and optimised as part of every delivery. Applications we build consistently score 90+ on Lighthouse for performance, accessibility, and SEO. These scores are not achieved by gaming the benchmark; they reflect genuine optimisation decisions made throughout the development process.
Next.js Development Company — FAQ
Common questions about Next.js development company.
Do you use the Next.js App Router or Pages Router?▾
Wolk Inc defaults to the App Router for new projects — it enables React Server Components, better data fetching patterns, and more granular caching control. For existing projects on the Pages Router, we either continue with Pages Router or manage a migration to App Router depending on the scope and risk profile.
Can you integrate Next.js with our existing backend or API?▾
Yes. Next.js works as a frontend layer that calls an existing REST or GraphQL API, as a full-stack framework with its own API routes, or as a hybrid. Wolk Inc assesses your existing architecture and designs the integration pattern that best fits what you already have.
Do you provide Next.js performance audits for existing applications?▾
Yes. Wolk Inc conducts Next.js performance audits covering bundle size analysis, rendering strategy review, image and font optimisation, caching configuration, and Core Web Vitals measurement. Audit findings include specific recommendations with implementation priority ranked by impact.
Need a Next.js development partner?
Wolk Inc builds production-grade Next.js applications for startups and SMBs. Senior engineers, written architecture plan in 48 hours.