ZENKEI
We design and build custom web applications, portals, internal tools and marketplaces, fast, accessible interfaces on data models that will not fall over, on a stack you own.
Rated 4.9 out of 5 by clients across AI, software and quantitative projects.
Web application development is building software that runs in the browser and does real work: customer portals, internal tools, dashboards and marketplaces, not a brochure site. ZenkeiX designs the interface and the data model together, so the app is fast, accessible and reliable as it grows, on a stack you own.
Whether you are replacing a tangle of spreadsheets, giving customers a portal, or launching a marketplace, we ship the core workflow first, then extend it. Many web apps grow into full SaaS products, and we can add AI features where they earn their place.
Not a brochure site. Software that does the work.
Secure areas where your customers see their data, manage their account and self-serve, cutting the load on your team.
The admin panels, dashboards and workflow tools your team actually uses, replacing spreadsheets and manual steps.
Multi-sided products connecting buyers and sellers, with listings, search, payments and trust built in.
Clean APIs and connections to the systems you already run, so the app fits your stack instead of fighting it.
One session on your users and process. We leave with the core workflow to build first, not a forty-page spec.
We build the UI and the data model as one, in your repositories and cloud, with performance, accessibility and security from the start.
We ship the core, watch how people actually use it, and add features and scale as the app earns them.
Web application development is building interactive software that runs in a browser and does real work, such as customer portals, internal tools, dashboards and marketplaces. It covers the user interface, the data model and the backend behind it, not a static marketing site.
A website mostly shows information; a web application lets people do work: log in, enter and manage data, run workflows and see results. Web apps have accounts, permissions and a database behind them, so they are engineered more like software than like a page.
A focused web app built around one core workflow usually ships in a few weeks to a couple of months. We build the essential workflow first, launch it, then extend, rather than trying to ship every feature at once.
We build on TypeScript with React and Next.js on the front end, Node or Python on the back end, and PostgreSQL for data, deployed with Docker on AWS, Google Cloud, Cloudflare or Vercel. We choose per project and keep it standard so it is easy to hire for.
Yes. We connect web apps to your CRM, ERP, payment providers and internal APIs, so the app reads and writes your real data instead of becoming another silo. Clean APIs and webhooks keep everything in sync.
You do. The code lives in your repositories and the app runs in your own cloud accounts, with no lock-in to us. We set it up, document it, and can hand it over or keep maintaining it as you prefer.
Thirty minutes on your workflow. No slides, no fluff.