Services / Full-Stack Web Development

Full‑stack React and TypeScript development for agencies

A small team that builds custom web applications, headless CMS sites and commerce with React, TypeScript and Node.js. Agencies and brands hire us as their development team.

Discuss a project

Why this approach

Built from your designs

We build agency designs as designed, inside your repository and your tools. You keep the client relationship, and we stay on after launch.

One team, full stack

We use React and Next.js for the website and Node.js for APIs and integrations, all in TypeScript. One team builds the frontend, the server code and the connections between them.

Custom web applications

Internal tools, dashboards and customer portals with sign-in and user roles. We connect them to the systems you already run.

Content and commerce

Sanity as a headless CMS, and commerce on MedusaJS or Shopify. We model content and product data so your team manages it day to day. We handle changes to the code.

Stack

React: Interfaces built from small, testable components
Next.js: Server rendering, routing and caching
TypeScript: One type system from browser to server
Node.js: APIs, services and integrations
Sanity: Headless CMS with custom content models
MedusaJS: Open-source commerce engine
Shopify: Hosted commerce platform
Azure: Cloud hosting and services

Process

01
Tell us what you need
Tell us about the project, your current systems, the role you need and your timing. We reply with questions or a time to talk.
02
Agree the scope
We agree what we build, who owns each part and how the handover works. You get a written scope before work starts.
03
Build in your tools
We work in your repository, your project board and your chat. Each week ends with a short demo of software that runs.
04
Hand over or stay on
Documentation, access and a walkthrough are part of the plan. Most clients keep working with us on new features and upkeep.

Questions

How do we hire you as a full-stack React and TypeScript team?

Send a short brief through the contact page or write to hi@adeptive.se. Tell us what you are building and the role you need: consultants, your development team, or a development lead inside a larger team. We reply with questions or a time to talk, then agree a written scope.

Can you build from our agency’s designs?

Yes. Most agency work starts from finished designs, and we raise questions early where a design and the platform disagree. For Forge, we were the frontend development partner and built the site from their designs.

What do you build beyond the frontend?

We write APIs and services in Node.js and connect the frontend to your CMS, commerce platform, PIM or ERP. For content-heavy sites we integrate Sanity. For shops we build headless commerce on MedusaJS or Shopify.

Can you join an existing codebase?

Yes. We work in repositories that other teams started, and we keep to the conventions that are already there. If you need advice or a development lead rather than a complete build, see our web development consultancy.

Do you work with agencies and brands in Sweden?

Yes. Adeptive Digital is a company registered in Sweden, and we work in English and Swedish. Agencies come first for us, and e-commerce brands hire us directly as well.

What happens after launch?

Most clients keep working with us on new features and upkeep. Our long-term partnership with IONA is on our work page. If you prefer to take the work in-house, the handover covers that.