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Byte Harbor Inc.

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Based in Calgary, ABWorking with clients across Canada and the US

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Home/Services/Next.js & React Development

Next.js & React Development · Canada and the US

Next.js and React development from a Calgary team

Fast, maintainable Next.js and React builds, from marketing sites to customer portals and dashboards, led by a senior frontend and web platform engineer in Calgary.

Discuss Your Project See related work

Who it’s for

  • Businesses rebuilding a slow website or web app on a modern stack
  • Startups and product teams that need senior Next.js and React help
  • Teams with an existing Next.js app that needs performance or architecture work
  • Companies moving from a monolithic CMS to a headless setup

Problems we solve

What usually brings people to us

  • Slow pages

    Large bundles and client-side rendering make pages slow to load and hurt search visibility.

  • Hard-to-change code

    Untyped, untested code makes every change risky and slow.

  • Outdated patterns

    Older React or Next.js versions block new features and security updates.

  • No clear architecture

    Data fetching, state and components grew without a plan.

What we deliver

Everything needed to launch with confidence

Scope is agreed in writing before work starts, so you know exactly what’s included.

For technical readers: stack & approach

Next.js, React and TypeScript with Tailwind CSS. Data comes from Supabase, PostgreSQL or headless platforms such as Sitecore XM Cloud and commercetools. Vitest and Playwright for testing, deployed on Vercel.

  • Next.js App Router builds with server components and static generation
  • React and TypeScript front ends with a reusable component library
  • Headless CMS and commerce front ends
  • Performance work: Core Web Vitals, image and font optimisation, caching
  • Upgrades and migrations to current Next.js and React versions
  • Automated tests with Vitest and Playwright
  • Deployment on Vercel with preview environments
  • Code reviews, documentation and handover

Relevant experience

Related work

  • Illustration for Enterprise content platform delivery
    Website

    Enterprise content platform delivery

    Enterprise-scale content sites on Sitecore XM Cloud.

    Standout features

    • Headless Next.js front ends on Sitecore XM Cloud
    • A reusable component library content teams assemble in the editor
    • Static generation and caching for fast, content-heavy sites

    Everyday impact

    Large, content-heavy sites that stay fast and manageable as they grow.

    Built with

    • Sitecore XM Cloud
    • Next.js
    • React
    View project : Enterprise content platform delivery
  • Illustration for Meeting intelligence workboard
    AI & automation

    Meeting intelligence workboard

    900+ calls, organized and linked to the work they created.

    Standout features

    • Bulk import of call transcripts, organized by month
    • A summary for every call
    • Every task links back to the calls that mention it

    Everyday impact

    Anyone can trace a decision back to the conversation where it was made.

    Built with

    • Next.js 16
    • React 19
    • Tailwind 4
    • Drizzle
    • SQLite
    View project : Meeting intelligence workboard
  • Illustration for Customer portal & onboarding app
    Web app

    Customer portal & onboarding app

    A complete self-service journey, from sign-up to subscription to smart devices.

    Standout features

    • Guided onboarding, appointments, goals and messaging in one portal
    • Stripe subscriptions plus single sign-on straight into the online store
    • Accessibility audited with axe and pa11y, backed by Section 508 documentation

    Everyday impact

    Customers handle onboarding, bookings and orders themselves, and staff manage it all from one admin.

    Built with

    • React
    • Supabase
    • Stripe
    • Shopify SSO
    • Zoom
    View project : Customer portal & onboarding app

Our approach

How a project runs

  1. 01

    Discovery & requirements

    We learn how your business works today, what’s getting in the way, and what a good result looks like for you.

  2. 02

    Scope & proposed approach

    You receive a written scope that explains what we recommend building, why, and what’s out of scope.

  3. 03

    Design & development

    We design and build in stages and share working versions so you can review real progress, not just mock-ups.

  4. 04

    Testing & launch

    We test on real devices and browsers, check performance and accessibility, and plan a careful launch.

Questions

Next.js & React Development FAQs

Don’t see your question? Ask us directly.

Why choose Next.js for a business website or app?

Next.js combines fast static pages with server-rendered and interactive features in one framework, which suits sites that need both strong search visibility and app-like functionality.

Can you work on our existing Next.js or React app?

Yes. We start with a short review of the codebase, then recommend fixes, upgrades or new features in priority order.

Can you upgrade us to the latest Next.js version?

Yes. We plan upgrades in stages, test as we go, and document what changed.

Do you only work with Calgary companies?

No. We’re based in Calgary and work remotely with clients across Canada and the US.

How much does a Next.js project cost?

It depends on scope. After a discovery conversation we provide a written estimate for your specific project.

Related services

  • ServiceWebsite Development
  • ServiceCustom Software & Web Applications

Start a conversation

Planning a next.js & react development project?

Tell us about your business and what you need. We’ll follow up to discuss scope and next steps.

Discuss Your Project