Web
SaaS dashboard rebuild for a faster product experience
A slow dashboard experience was rebuilt with React 19 and server rendering to improve product responsiveness and trial conversion.
Faster dashboards and a cleaner trial flow
/ JavaScript Development
JavaScript development for modern web and Node backends.
We ship JavaScript — and TypeScript — across the stack: browser, Node, edge, workers. Clean modules, strict types, real tests, measurable performance.
Shipped in USA · Europe · Middle East · Pakistan
SaaSHealthcareFintechEcommerceDeveloper toolsInternal platforms
/ In short
JavaScript development is the engineering of web applications using the JavaScript language (and its strict superset TypeScript) across browsers, Node servers and edge runtimes — powering frontends, APIs and tooling with a single language.
/ What this service includes
What we deliver with JavaScript Development Services.
01
Node.js APIs
Fastify, NestJS, tRPC — type-safe contracts and tested domain logic.
02
Full-stack TypeScript
Next.js, Remix or SvelteKit with shared types end-to-end.
03
Browser SDKs & widgets
Embeddable JS SDKs with small bundles and clean APIs.
04
Edge & workers
Cloudflare Workers, Vercel Edge, low-latency APIs worldwide.
05
Legacy JS modernization
jQuery, Backbone, AngularJS migrations to React or Svelte.
/ Is this right for you?
Honest fit check.
A plain answer up front. We'd rather not sell you something you don't need.
✓ Yes if
- You want a single language (TypeScript) across frontend and backend
- You're modernising legacy jQuery, Backbone or AngularJS
- You need Node.js APIs, edge workers or full-stack JavaScript
× Not a fit if
- You need a WordPress CMS — use our WordPress services instead
- Your team exclusively runs Python or Go backends
- You need only a design or branding project
/ Best fit
Who this service is for.
- Product teams building full-stack TypeScript applications
- Companies modernising legacy jQuery, Backbone or AngularJS codebases
- Teams building Node.js APIs and backend microservices
- Startups needing fast full-stack JavaScript MVPs
/ Technologies
Our stack, battle-tested.
TypeScriptNode.jsReactNext.jsFastifyNestJStRPCBunVite
/ Pricing & timeline
Typical range
Custom quote after scoping
Timeline
6 – 20 weeks
Team shape
1 lead + 1–3 TypeScript engineers
Pricing is quoted after discovery based on scope, team shape and delivery timeline.
/ Why us
What makes us different.
01
Senior engineers stay on the work
The people you meet in discovery stay involved through architecture, delivery and launch.
02
Search, performance and accessibility are built in
Metadata, schema, page performance and semantic markup are part of delivery, not a post-launch add-on.
03
Architecture is explained in writing
Tradeoffs, integrations and scope changes are documented so your team can audit decisions later.
04
Your team owns the output
Repos, infra, analytics and documentation live in your accounts from the beginning.
/ Relevant proof
Related case studies for this page.
Real delivery examples tied to this service area, so buyers can move from claims to shipped work.
Web
Realtime operations dashboard for high-volume event streams
A live geospatial operations dashboard was rebuilt to stay responsive under heavy event volume using Kafka, ClickHouse and React.
Responsive dashboards under heavy event load
Web
Developer-tool MVP from concept to launch
A developer-tool team went from concept to a launch-ready MVP with product, docs, auth and billing delivered in one stream.
Launch-ready MVP with docs, billing and onboarding
/ Client signals
What clients noticed about this kind of work.
EU
“Cuibit stepped into a messy SaaS rebuild, reset the architecture quickly and shipped without the usual agency handoff drama. The team felt embedded, not outsourced.”
MR
Mason Reed
VP Product · B2B SaaS platform
USA
“Cuibit brought order to a backend that had become risky to change. Better contracts, better visibility and fewer release surprises mattered more than any single framework choice.”
DM
Daniel Mercer
VP Engineering · Workflow SaaS platform
/ Further reading
Related insights and buying guides.
Supporting articles that help buyers understand the tradeoffs, architecture choices and implementation details behind this service area.
Technical SEO
Next.js 16 SEO Recovery Guide: Fix Indexing and Rendering Issues in React Websites
React websites can rank well when rendering, metadata, schema, internal links, and Core Web Vitals are engineered correctly. This Next.js 16 SEO recovery guide explains how businesses can fix indexing and rendering issues in 2026.
Read insight →
AI Development
How to Choose an AI Development Agency in 2026: RAG, LLM Integration, Web and Mobile Delivery
Choosing an AI development agency in 2026 is no longer just about prompt engineering. The right partner should be able to design retrieval pipelines, tool integrations, context-aware agents, and the web or mobile product layer that makes AI usable in the real world. This guide explains what to evaluate, which architecture patterns matter, and how to tell whether an agency can deliver production-grade RAG development and LLM integration.
Read insight →
AI / Guide
AI Development in 2026: Why RAG and LLM Integration Are Now the Core of Scalable Digital Products
AI in 2026 has shifted from standalone models to full systems built on RAG and LLM integration. Learn how modern businesses are building scalable, accurate, and production-ready AI applications.
Read insight →
/ FAQ
Frequently asked questions
TypeScript by default for any non-trivial codebase. The type safety pays for itself within weeks in refactor speed and bug reduction.
Yes where it's the right choice. Bun is excellent for scripts, tests and some APIs; Node remains our default for most production systems.
Pricing is quoted after discovery based on scope, team shape and delivery timeline. A Node API, full-stack TypeScript product and legacy jQuery modernisation are each scoped differently, so we share a written proposal after discovery.
Building both the frontend (React, Next.js) and backend (Node.js, Fastify, NestJS) in TypeScript — sharing types, models and validation logic across the entire stack for faster development and fewer bugs.
Node.js for production systems where ecosystem maturity and stability matter. Bun where raw performance, built-in testing and bundling are priorities — typically scripts, tooling and specific microservices.
Phased migration: extract components from jQuery into React, progressively replace page-by-page, and set up build tooling so old and new code coexist during the transition.
/ Explore more
Related services.
/ Next step
Ready to start?
Tell us about your project. A senior strategist replies within one business day — with a written first take.
Accepting projects
Book a call →