mijoo
WorkServicesAboutProcessContact
Let's talk
Back to services
Software service / web productsWeb productsPortalsNext.js

Good frontend work is not decoration. It is operational clarity expressed through interface.

Web Engineering

Web engineering for teams that need a product-grade interface they can keep extending with confidence.

Senior web engineering for product interfaces, portals, and business-critical web applications.

We design and build product websites, client portals, and internal web tools where clarity, speed, and maintainability all matter to the business.

Where this usually starts to hurt

We step in when the web layer carries acquisition, self-service, or internal operations and the team needs stronger UX, cleaner frontend structure, and tighter system integration.

Where we can take responsibility

  • Interface architecture: Information hierarchy, page templates, reusable components, state handling, and interaction quality.
  • Frontend to backend integration: API contracts, auth flows, business rules in the UI, and the places where the frontend meets the system.
Share project brief
View projects

In brief

We usually start with the core screens, the frontend structure behind them, and the system contracts the web layer depends on. Then we build and stabilise what has to carry future change.

3 axes

clarity, speed, and change cost improved together

1 web layer

UX and frontend engineering handled as one technical system

real content

designed against real states, real copy, and real user paths

Direct answer

Senior web engineering for product interfaces, portals, and business-critical web applications.

Key takeaways

  • Direct answer: Senior web engineering for product interfaces, portals, and business-critical web applications.
  • Typical output: Core web interface: A web app or portal built around real states, real content, and a structure the team can keep shipping on.
  • Best fit: The frontend is already business-critical and needs to keep evolving without rewrites.
  • First weeks outcome: The primary interface becomes easier to scan, easier to trust, and easier to change.
  • How Mijoo starts: Mijoo usually opens this kind of work with Define the core screens and journeys: We align on the key screens, user journeys, priorities, and technical boundaries before the frontend grows further.

How we usually open the work

Define the core screens and journeys

We align on the key screens, user journeys, priorities, and technical boundaries before the frontend grows further.

What the work typically leaves behind

  • Core web interface: A web app or portal built around real states, real content, and a structure the team can keep shipping on.
  • Reusable frontend system: Shared page patterns and components that reduce future delivery cost instead of creating a one-off redesign.

Where we step in

Where we step in

Senior web engineering for product interfaces, portals, and business-critical web applications.

We step in when the web layer carries acquisition, self-service, or internal operations and the team needs stronger UX, cleaner frontend structure, and tighter system integration.

Why this matters now

When the customer-facing surface starts carrying real business weight, interface debt quickly becomes delivery debt. Clarity, speed, and change cost all start living in the same place.

What the work typically leaves behind

Core web interface

A web app or portal built around real states, real content, and a structure the team can keep shipping on.

Reusable frontend system

Shared page patterns and components that reduce future delivery cost instead of creating a one-off redesign.

Performance and measurement baseline

Performance, accessibility, analytics, and SEO support where the product or acquisition flow depends on it.

Typical situations

01

A new portal or product surface

You are launching a web product, portal, or internal tool that has to feel solid from the first version.

02

A frontend that slows change

The current frontend is hard to extend, brittle under real content, or expensive to change every cycle.

03

A web layer central to the business

The interface drives conversion, client work, or internal operations and needs stronger structure behind it.

Best fit

  • The frontend is already business-critical and needs to keep evolving without rewrites.
  • UX quality matters together with speed, SEO, and maintainability.
  • You need a senior pass on both product surface and implementation discipline.

Not a fit

  • You only need a brochure facelift with no meaningful content or flow changes.
  • The team wants novelty and motion more than clarity and long-term maintainability.
  • Nobody is ready to simplify the interface even when the current structure is confusing users.

First weeks outcome

  • The primary interface becomes easier to scan, easier to trust, and easier to change.
  • Design and engineering start sharing reusable patterns instead of negotiating each screen from scratch.
  • Performance and readability stop being treated as nice-to-have polish after the main work is done.

How the work unfolds

How the work unfolds

We usually start with the core screens, the frontend structure behind them, and the system contracts the web layer depends on. Then we build and stabilise what has to carry future change.

01

Define the core screens and journeys

We align on the key screens, user journeys, priorities, and technical boundaries before the frontend grows further.

02

Lock the UI system and contracts

We agree on the reusable layout patterns, component rules, and API boundaries the frontend can scale on top of.

03

Build the frontend foundation

We implement the frontend, supporting integrations, and the reusable structure the product needs for long-term change.

04

Stabilise and launch

We tune the experience, fix launch-critical issues, and leave the team with a stable base for the next phase.

What we can own technically

What we can own technically

We design and build product websites, client portals, and internal web tools where clarity, speed, and maintainability all matter to the business.

Interface architecture

Information hierarchy, page templates, reusable components, state handling, and interaction quality.

Frontend to backend integration

API contracts, auth flows, business rules in the UI, and the places where the frontend meets the system.

Performance and measurement

Loading behaviour, accessibility, SEO support, analytics hooks, and conversion path quality.

Technologies

The stack we most often use to get this kind of work into production cleanly

01

Frontend foundation

  • Next.js
  • React
  • TypeScript
  • D3.js
  • deck.gl
  • Three.js
  • Tailwind CSS

02

UI system

  • Tailwind CSS
  • Framer Motion
  • Material UI
  • shadcn/ui

03

Integration edge

  • REST APIs
  • GraphQL
  • Node.js
  • PostgreSQL

Relevant work

Relevant work

We step in when the web layer carries acquisition, self-service, or internal operations and the team needs stronger UX, cleaner frontend structure, and tighter system integration.

Greentouch: web architecture and conversion hierarchy for a service-heavy website.

LinkaDeti: a public-facing experience where clarity, accessibility, and content structure had to hold up under real use.

Service website with a clearer conversion structure.

Greentouch

Greentouch is a client-facing marketing website presenting web development, design, SEO, and e-commerce services in one coherent product narrative. The site was built to convert service interest into qualified inquiries with clear next steps.

View projects

Content-heavy public experience with careful UX.

LinkaDeti

LinkaDeti is a support platform focused on children and young people who need immediate access to safe communication channels. The solution combines a public web chat entry point with an internal operator workspace that includes queue routing, conversation tagging, internal notes, and real-time response handling.

View projects

Questions before kickoff

Questions before kickoff

Open the contact form with the web project type preselected.

No. The work can cover conversion-focused websites, portals, and product frontends where UX quality and implementation quality both matter.

Working through something similar?

Show us where we should step in

Send a short note about the product, its current stage, and the pressure that is slowing the next release down. We open the contact flow in the right context and keep the first step practical.

Open the contact form with the web project type preselected.

Share project brief
View projects
mijoo

© 2026 Mijoo s. r. o. All rights reserved.

WorkServicesAboutContact

Made with coffee in Bratislava

PrivacyGDPRTerms