Web App Engineering

The hard part isn't building AI.
It's shipping it.

Most AI features never leave the demo. We design, build and run the ones that do: inside real products, with real users, on infrastructure that holds up.

Start a project See what we do

support/assistant grounded · 4 sources

Can I change the delivery address after ordering?

Yes, until the order enters picking. On the order page, choose Edit address. Once picking starts the address is locked and support has to reroute the parcel.

Answered from

help/orders/changing-an-order.md 0.94
policies/fulfilment-v3.pdf 0.88
support/macros/address-change 0.71

Every claim links to the document it came from.

automations last 24 hours

Task	Status	Duration
Classify and route 142 inbound emails	Handled automatically	1m 12s
Extract line items from 38 supplier invoices	Handled automatically	3m 40s
Draft weekly client report	Waiting for approval	18s
Reconcile 1,204 payment records	Handled automatically	9s
Refund above threshold	Escalated to a human	—

Approval steps sit exactly where the stakes justify them.

app/Actions/PublishArticle.php +4 −1

 public function handle(Article $article): void {-    $article->update(['published' => true]);+    DB::transaction(function () use ($article) {+        $article->publish();+        SearchIndex::dispatch($article);+    }); }

Tests

3 passed · 0.15s

it publishes an article 0.04s
it reindexes after publishing 0.06s
it rolls back when indexing fails 0.05s

Every change ships with the test that proves it.

lighthouse · mobile vuewer.com

100 Performance

Largest Contentful Paint 0.8s
Interaction to Next Paint 38ms
Cumulative Layout Shift 0.00
Total Blocking Time 0ms

Typical rebuild Before 4.2s After 0.8s

Measured on a throttled mobile connection, not a laptop.

The gap

The demo is the easy part.

Anyone can wire up a prompt. The work that actually costs time is everything after: grounding the model in your data, handling the answers it gets wrong, keeping latency and cost sane, and shipping it into a product that already has users.

Effort to ship an AI feature

A demo ships the first cell. Production fills the rest.

The demo Production

Prompt

This is all a demo ships. The rest is what makes it a product.

01 AI features

AI that lives inside your product.

Not a chatbot bolted onto the corner of your site. Features that use your own data and do real work.

support/assistant grounded · 4 sources

Can I change the delivery address after ordering?

Yes, until the order enters picking. On the order page, choose Edit address. Once picking starts the address is locked and support has to reroute the parcel.

Answered from

help/orders/changing-an-order.md 0.94
policies/fulfilment-v3.pdf 0.88
support/macros/address-change 0.71

Every claim links to the document it came from.

Grounded in your own content

Retrieval over your documents, products and history, so answers cite something real.
Inside existing workflows

Generation and summarisation where your users already are, not in a separate tab.
Structured extraction

Documents, email and forms turned into data your systems can act on.
Evals and guardrails

A test set from day one, so you know when the model is wrong before your customers do.
Budgets set up front

Cost per request and response time agreed before we build, not discovered after.

AI development

02 Agents & automation

Put the busywork on autopilot.

The repetitive work your team does by hand, handed to something that does not get bored.

automations last 24 hours

Task	Status	Duration
Classify and route 142 inbound emails	Handled automatically	1m 12s
Extract line items from 38 supplier invoices	Handled automatically	3m 40s
Draft weekly client report	Waiting for approval	18s
Reconcile 1,204 payment records	Handled automatically	9s
Refund above threshold	Escalated to a human	—

Approval steps sit exactly where the stakes justify them.

Multi-step agents

Real tasks completed end to end, with a human approval step where the stakes justify it.
Connected to your tools

The systems you already pay for, wired together properly instead of by copy and paste.
Scheduled and event-driven

Work that starts because something happened, not because someone remembered.
Fully auditable

Every action logged, so you can answer what happened and why.
MCP servers

Your team's own AI tools given safe, scoped access to your systems.

AI development

03 Web applications

Production-grade Laravel, start to finish.

Ten years of building the boring, reliable substrate that the interesting parts run on.

app/Actions/PublishArticle.php +4 −1

 public function handle(Article $article): void {-    $article->update(['published' => true]);+    DB::transaction(function () use ($article) {+        $article->publish();+        SearchIndex::dispatch($article);+    }); }

Tests

3 passed · 0.15s

it publishes an article 0.04s
it reindexes after publishing 0.06s
it rolls back when indexing fails 0.05s

Every change ships with the test that proves it.

Applications and APIs

Laravel back ends built to be read and changed by whoever comes next.
Integrations

Stripe, Mollie, Shopify, WooCommerce, and whatever else your business already runs on.
Design, not just implementation

Interface and interaction design in-house, so nothing is lost in a handover.
Hosting and monitoring

Deployment, backups and alerts set up once, properly.
Maintenance that happens

Dependencies and security patches applied on a schedule, not on an incident.

Web app development

04 Performance & SEO

Fast pages rank. Fast apps convert.

Measured, not asserted. This site scores 100.

lighthouse · mobile vuewer.com

100 Performance

Largest Contentful Paint 0.8s
Interaction to Next Paint 38ms
Cumulative Layout Shift 0.00
Total Blocking Time 0ms

Typical rebuild Before 4.2s After 0.8s

Measured on a throttled mobile connection, not a laptop.

Core Web Vitals in the green

Largest Contentful Paint, interaction latency and layout shift, all measured on real devices.
Technical SEO

Structure, schema and internationalisation done once and done correctly.
AEO and GEO

Written to be the answer, and structured to be cited by AI search.
Query and database work

The slow page is usually one query. We find it.
Security hardening

Headers, dependencies, access control and the boring checks that prevent bad weeks.

Web app development

How we work

One engineer. No handoffs.

The person you talk to on the first call is the person writing the code. That is the whole advantage, and everything below follows from it.

01
Discover

A call, then a written scope with a fixed price. If AI is the wrong answer, we say so here.
02
Design

Interface and architecture decided before code, so the expensive decisions are made cheaply.
03
Build

Shipped in weekly slices on a staging URL. You see progress, not status reports.
04
Ship

Deployed, monitored, documented and handed over. No dependency on us by design.
05
Maintain

Optional retainer for updates, improvements and reserved capacity when you need it.

Stack

Proven tools, chosen on purpose.

A short list we know deeply beats a long list we know slightly.

The numbers

Raise the quality bar. Lower the overhead.

Lighthouse performance: 100; On this site, on mobile. Verify it yourself.
Building since: 2015; Ten years of production work for European clients.
To a live AI feature: 3 weeks; Typical time from first call to something your users can touch.
Person in your way: 1; No account managers. No delivery leads. No handovers.

Pricing

Published figures. Fixed prices.

Hourly for small work, a fixed price for projects, a retainer when you need reserved capacity.

See all pricing

FAQ

Questions worth asking.

All questions

Who is behind Vuewer?

Vuewer is a boutique engineering studio run by Alexander (Sander) van Hooff, its founder, designer and web engineer. You work with him directly, from the first call through to handover. Our clients are predominantly other development companies, marketing agencies, and businesses that need help with their digital projects.

What kind of AI features can you actually build?

Retrieval-augmented search over your own content, document and email extraction, generation and summarisation inside existing workflows, and multi-step agents that complete real tasks. In practice that means a support assistant that answers from your documentation, a pipeline that turns incoming invoices into structured data, or an agent that drafts work and hands it to a human to approve.

How long does an AI feature take to build?

Three to six weeks from first call to a feature your users can use, for a well-scoped first feature. Week one is discovery and building the eval set, week two is the build, week three is hardening and shipping. Larger or more integrated work takes longer, and we will say so before you commit.

What does it cost?

Hourly work is €95 per hour. Websites start at €1.499, custom web applications at €4.999, and a three-week AI feature sprint at €7.500. Ongoing retainers start at €1.950 per month. Every project gets a fixed price in writing before it starts.

What if I'm not satisfied?

Then we keep working until you are. We have a one hundred percent satisfaction guarantee, and in ten years we have never needed to argue about it. Weekly delivery is what makes that possible: problems surface in week one, not at the end.

Which languages do you work in?

English, Dutch and Spanish. Projects, documentation and code review can be run in any of the three.

Get in touch

We'd love to hear from you.

Do you have a question or need help with a website or web application? Whether you are starting from scratch, refining what you already have, or stuck on something complex.

Fill in the form and we'll get back to you as soon as possible.

Start a project Or email us directly: [email protected]

The hard part isn't building AI. It's shipping it.

The demo is the easy part.

AI that lives inside your product.

Grounded in your own content

Inside existing workflows

Structured extraction

Evals and guardrails

Budgets set up front

Put the busywork on autopilot.

Multi-step agents

Connected to your tools

Scheduled and event-driven

Fully auditable

MCP servers

Production-grade Laravel, start to finish.

Applications and APIs

Integrations

Design, not just implementation

Hosting and monitoring

Maintenance that happens

Fast pages rank. Fast apps convert.

Core Web Vitals in the green

Technical SEO

AEO and GEO

Query and database work

Security hardening