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Quantum Code.
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info@quantumcode.hr
HREN
Local time in Split: Split,

Websites, marketing, infrastructure.Engineered, not improvised.

Quantum Code is a studio in Split, Croatia. We build websites and apps, run performance marketing and set up IT infrastructure for companies that cannot afford to stop.

  • Split, HR
  • Available for new projects
  • Local time in Split:
  • Adria Shipping Management
  • International Folklore Festival Split
  • Tessera Food & Wine
  • Golden Area
  • Rafting Centar Cetina
  • Božićno Selo
  • Izletište Lučić
  • Jadrogas
  • Atlas Vela Luka
  • Pictas Residence
  • Cliff Van Delort
  • Damor Rent a Car
  • Mateus & Martins
  • Digital Tours

Technology and platforms we work with

  • Microsoft
  • Nvidia
  • Starlink
  • Cisco Meraki
  • Proxmox
  • Supabase
  • Vercel
  • Twilio

01 / Services

Two fields. One discipline.

The team that keeps a vessel's infrastructure running also builds your website. So both get a plan, an inventory and a check before going live.

A / Web & Growth

Web & Growth

Websites, apps and marketing for businesses that live on guests, enquiries and bookings.

  • 01Websites that load in about a second
  • 02Custom web apps and PWAs
  • 03Instagram, Facebook and Google Business Profile
  • 04SEO, paid ads and a monthly report
Web and marketing

B / Infrastructure & Security

Infrastructure & Security

IT and OT environments for companies where an hour of downtime costs more than the project.

  • 01Network segmentation between IT and OT
  • 02NIS2 readiness and asset inventory
  • 03Monitoring, alerts and Power BI reporting
  • 04Servers, domain and day-to-day IT support
Infrastructure and security

03 / Why

Why Quantum Code

  1. 01

    Direct contact with the people doing the work.

    No account managers, no handoffs. You ask the people who know the answer because they built it.

  2. 02

    Experience from maritime and industrial infrastructure, where downtime is not an option.

    On a vessel nothing goes live without a rollback plan. The same rule applies to your site, your network and your ads.

  3. 03

    Local in Split, on site when it matters.

    You cannot fix a network cabinet over a video call. When it takes being there, we are there.

04 / Process

Five steps, no surprises

Every step ends with something you can read, open or try.

  1. Step 01 / 05

    Discovery

    A conversation of about thirty minutes, in person in Split or on a call. You describe the problem, we ask questions. If we are not the right fit for the job, we say so straight away.

    You receive

    • A written summary of the conversation
    • A list of open questions
    • A rough price and timeline range
  2. Step 02 / 05

    Proposal and quote

    You receive a document with scope, phases, deadlines and a fixed price per phase. Everything out of scope is listed clearly, so there are no surprises later.

    You receive

    • Scope of work by phase
    • A fixed price and payment schedule
    • A list of what we need from you
  3. Step 03 / 05

    Design and build

    We work in short cycles. Every week you see the real state on a staging address, not a slide deck. Infrastructure work happens in agreed maintenance windows.

    You receive

    • A staging address or test environment
    • A weekly written progress update
    • The chance to change course before it gets expensive
  4. Step 04 / 05

    Launch

    Launch follows a checklist: speed, accessibility, security headers, backups, redirects. There is also a rollback plan in case something is not right.

    You receive

    • The system in production
    • Credentials and the source code
    • Documentation and a short training session
  5. Step 05 / 05

    Support and growth

    We do not disappear after launch. Maintenance, monitoring and a monthly report are agreed as needed, with no contract that locks you in for years.

    You receive

    • Regular updates and security patches
    • A monthly status review
    • A direct number and address for emergencies

05 / Numbers

Numbers you can check

point of contact from the first call to handover
1
audio tours in the in-house product Digital Tours
4

06 / Tools

Tools we actually use

Not a list of everything that exists. These are the technologies behind the projects on this site.

Web and products

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS
  • Node.js
  • PostgreSQL
  • Supabase
  • Mapbox
  • PWA
  • Vercel

Infrastructure and automation

  • Proxmox
  • Windows Server
  • Active Directory
  • Cisco Meraki
  • Starlink
  • Tailscale
  • Microsoft 365
  • SharePoint
  • Power Automate
  • Power BI
  • Twilio

07 / Feedback

Quantum Code transformed our vision into reality with exceptional speed and quality. Their technical expertise and design sensibility are unmatched.
Fanita JurisicDirector, Adria Shipping Management d.o.o.

08 / Pricing

Indicative pricing

Starting prices for a typical scope. The final quote follows a conversation, in writing, with a fixed price per phase.

Website

A marketing site that loads fast, ranks properly and is easy to maintain.

from €2,200

Includes

  • Custom design, no templates
  • Up to 8 pages, Croatian and English
  • Technical SEO and structured data
  • Contact form and cookieless analytics
  • Code handover and editing guide
Request a quote

Web application

A custom system: bookings, internal tools, PWAs, client portals.

from €5,000

Includes

  • Specification and prototype before development
  • Database, authentication, roles
  • PWA: behaves like an app on a phone
  • Staging environment and automated checks
  • Documentation and code handover
Request a quote

Marketing retainer

Monthly channel management with a plan, execution and a report you can verify.

On request

Includes

  • Marketing plan and content calendar
  • Instagram and Facebook
  • SEO and Google Business Profile
  • Paid ads within an agreed budget
  • Monthly report across all channels
Request a quote

Infrastructure and security

On request

The price depends on the number of sites, the equipment and the state we find, so it is on request. The first step is an assessment, followed by a phased quote.

Prices are in euros. Final quote after a conversation.

09 / Questions

Common questions

If yours is not here, the fastest route is to send it directly.

How much does a project cost?

It depends on scope, so we do not guess. After the first conversation you receive a written quote with a fixed price per phase. Infrastructure work is priced from an estimate after an on-site assessment.

How long does it take?

A website is usually measured in weeks, an application in months. The deadline depends mostly on how fast content and decisions arrive. An exact phase plan is part of the quote.

Who owns the code afterwards?

You do. Once paid, you receive the source code, repository access and every account in your name. We keep nothing that would tie you to us.

Where is the site or app hosted?

Web projects usually go on Vercel, with databases on Supabase in an EU region. The account is opened in your name and you pay the provider directly, with no markup from us.

What about maintenance after launch?

You can arrange it monthly or call when needed. Maintenance covers updates, security patches, monitoring and small changes. It is not a condition of working together.

Do you work in English?

Yes. Communication, documentation and the product itself can all be in English. In shipping that is the default anyway.

What exactly do you cover for NIS2?

Gap analysis, a remediation plan and the technical implementation: asset inventory, network segmentation, access control, backups, monitoring and incident procedures. We do not issue certificates or give legal advice. For legal interpretation we work alongside your lawyer or adviser.

We already have IT. Can you work with them?

Yes, and that is the most common case. We take on a specific project, for example segmentation or monitoring, work alongside your team and leave documentation they can carry on from.

Have a project? Get in touch.

Describe what you need in a few sentences. We reply directly, no automated messages.

or write to

info@quantumcode.hr