Preparing experience

The language underneath our core stack

JavaScript Development

JavaScript is the runtime our core stack builds on—TypeScript compiles to it, Node.js runs on it, and React renders with it. For plain JavaScript projects without TypeScript, WLC applies the same engineering discipline through our core team.

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Capabilities included

What this type of engagement typically covers.

  • JavaScript
  • Web apps
  • Full-stack delivery
  • Browser APIs
Why WLC

Built for buyers who need clarity, speed and accountability.

Three principles that shape how we scope, build and deliver every engagement.

01

Get full-stack delivery from a team that works in JavaScript and TypeScript daily across frontend and backend.

02

Modernise an existing vanilla JavaScript codebase with structure, testing and (optionally) a gradual TypeScript migration.

03

Build browser-native features—canvas, WebSockets, service workers—without unnecessary framework overhead where it's not needed.

04

Maintain legacy JavaScript applications while planning a realistic path to a modern framework.

05

Optimise bundle size and runtime performance for JavaScript-heavy pages.

06

Apply consistent linting and code style so a JavaScript codebase stays approachable as it grows.

Engineering team delivering software products
Delivery model

A clean path from idea to launch.

Talk to delivery team
Step 1

Discovery

Step 2

Architecture

Step 3

Sprint build

Step 4

QA

Step 5

Launch support

Questions buyers ask

Common questions before starting a project.

TypeScript, in almost all cases—it's part of our core stack and catches a meaningful class of bugs before they reach production, with minimal added overhead once a project has any real size.

Yes—we can maintain it as-is, or migrate it to TypeScript incrementally, depending on the codebase's size and how much active development is planned.

Yes, via TypeScript—our React/Next.js frontends and Node.js/NestJS backends are both JavaScript-family, which is one reason we standardised on this stack.

Yes—target browser support is agreed during discovery, and build tooling is configured accordingly rather than assuming every user is on the latest browser version.

Related pages

Continue exploring WLC capabilities.

Read insights
React.js Development
Core stack — interactive frontend applications

React.js Development

React and Next.js are part of WLC's core engineering stack. We use them to build interactive UIs, dashboards, portals and customer-facing products with reusable, typed components rather than one-off page templates.

  • React.js & Next.js
  • TypeScript
  • Component systems
Explore page
Node.js Development
Core stack — scalable backend applications

Node.js Development

Node.js, typically with the NestJS framework, is part of WLC's core backend stack. We use it to build APIs, microservices, real-time systems and integration-heavy platforms that need to handle high I/O concurrency reliably.

  • Node.js & NestJS
  • Microservices
  • Real-time apps
Explore page
Python Development
Core stack — backend, automation and AI systems

Python Development

Python, typically served through FastAPI, is part of WLC's core stack for backend systems, automation workflows, data pipelines and AI-enabled applications—including our production work on Claude and OpenAI.

  • Python & FastAPI
  • AI/LLM integrations
  • Automation
Explore page
Ready to move

Tell us what you are building — we will map a practical route.

Share the outcome, timeline and constraints you are working with. We will respond with useful next questions and a clear way to start.