Angular development company
Krapton builds and modernizes Angular applications for teams that need typed, testable front ends: dashboards, portals and internal tools, delivered with standalone components, signals, server-side rendering and an upgrade path you can keep following after launch.
- Senior engineers · IST + EST overlap
- NDA on day 1
- 24-hour reply
- Projects shipped
- 50+
- Code ownership
- 100%
- Client rating
- 4.8/5
- First reply
- 24h
Angular development for long-lived business applications
Krapton is an Angular development company that designs, builds and upgrades large single-page applications where many developers work on one codebase for years. Angular suits that situation because the framework ships its own router, forms, HTTP client, dependency injection and CLI, so teams do not assemble and maintain a stack of third-party choices. Our engineers write new code with standalone components, the built-in control flow (@if, @for, @defer) and signals for local state, and they reach for RxJS where streams genuinely help: websockets, typeahead search, retry logic. Server-side rendering through @angular/ssr with incremental hydration covers public pages that need search visibility. Angular is not always the right call. A small marketing site or a content-heavy blog is usually better served by a lighter framework, and a team already fluent in React gains little by switching. Where Angular fits, we focus on predictable architecture, typed APIs and upgrades that follow the release schedule instead of falling years behind.
Angular development services
New Angular application builds
We set up an Angular workspace with standalone components, strict TypeScript, lazy-loaded routes and a design system on Angular Material or the CDK, then build features against your API contracts.
AngularJS to Angular migration
For AngularJS apps, which lost official support years ago, we plan a route-by-route rewrite or a hybrid ngUpgrade period, keeping the product live while modules move across.
Version upgrades and modernization
We run ng update one major version at a time, apply the schematics, convert NgModules to standalone, move templates to the new control flow and replace deprecated APIs before they are removed.
Signals and state architecture
We decide where signals, NgRx SignalStore, classic NgRx Store or plain services own state, then document the rules so feature teams do not mix four patterns in one module.
SSR and Core Web Vitals
Public pages get server-side rendering, hydration and @defer blocks for below-the-fold widgets, so Largest Contentful Paint and Interaction to Next Paint improve without rewriting the authenticated app.
Monorepos and micro-frontends
For several apps sharing libraries, we structure an Nx workspace with enforced module boundaries; where independent deployment is a hard requirement, we evaluate Native Federation and explain its operational cost.
Why teams choose Krapton for Angular
Senior engineers, fixed scope, and code you own — the things agencies promise and rarely deliver.
Change detection done deliberately
Engineers use OnPush, signals and zoneless change detection where the codebase allows it, and they profile with Angular DevTools before blaming the framework for a slow screen.
RxJS without subscription leaks
Streams are composed with switchMap, takeUntilDestroyed and the async pipe or toSignal, so components clean up after themselves and memory does not climb during long sessions.
Typed contracts with your backend
We generate TypeScript clients from OpenAPI specs and use typed reactive forms, so a renamed field breaks the build instead of breaking production for your users.
Tests that survive upgrades
Component tests use Angular Testing Library and Vitest or Jest, end-to-end flows run in Playwright, and the suite runs on every pull request before an upgrade merges.
How a Angular project runs with Krapton
01
Codebase and API audit
We read the existing workspace, check versions with ng update, map deprecated APIs and list the backend endpoints each screen depends on.
02
Architecture and slices
We agree on folder boundaries, state ownership and routing, then plan delivery as vertical slices that each reach a staging URL.
03
Build and review
Each slice ships with component tests, keyboard and screen-reader checks, and a reviewed pull request, merged behind a feature flag where needed.
04
Release and upkeep
We set budgets in angular.json, wire source maps to your error tracker and schedule each major upgrade soon after its release.
The Angular stack we build with
Angular development: questions answered
What does an Angular development company do for an existing product?
It takes ownership of the front end: architecture, feature delivery, upgrades and performance. For an existing product that usually starts with an audit of the Angular version, state management, test coverage and bundle size, followed by a plan that mixes new features with modernization work. You get pull requests in your repository, a staging environment per release and written notes on every architectural decision so your own developers can follow the reasoning.
When is Angular the wrong choice?
Angular is the wrong choice when the project is small, content-led or needs the fastest possible first load with minimal JavaScript. Static marketing sites, blogs and documentation are better on Astro or Next.js. It is also a poor fit when your hiring pool and existing code are React. Angular earns its weight in large, form-heavy, multi-team applications such as ERP screens, banking portals and admin consoles, where its conventions keep code consistent.
How do you migrate from AngularJS or an old Angular version?
We migrate incrementally rather than in one big rewrite. For AngularJS, the choice is between running both frameworks side by side with ngUpgrade or rebuilding route by route behind a reverse proxy; the second is often simpler for apps with weak test coverage. For old Angular versions, we step through each major with ng update, fix breaking changes, then adopt standalone components and signals once the app is current.
How do you keep a large Angular app fast?
Mostly by controlling what renders and what loads. Routes are lazy-loaded, heavy widgets sit inside @defer blocks, lists use track expressions in @for, and components use OnPush or signals so change detection touches only what changed. We enforce bundle budgets in the build and check Interaction to Next Paint with real user monitoring, because a fast Lighthouse score in the lab can hide slow screens in production.
What decides the cost of Angular development services?
Scope and the state of your current code decide it more than anything else. The main drivers are the number of distinct screens and forms, integrations with backends and identity providers, whether an AngularJS or outdated codebase must be migrated, accessibility or compliance requirements, test coverage expectations and the seniority mix of the team. We scope after a short technical review so the estimate reflects your code, not a template.
Ready to build? Tell us what you have in mind.
Send a short brief and a senior engineer will reply within one business day with next steps — no sales fluff.