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Dimitri de Jong
Dimitri de Jong Software Engineer · Almere
Open for projects
Hi, I’m Dimitri.

I build the software your business is missing.

Custom software for small businesses: integrations, tools and automation that take over the manual work. You know the cost up front, and the code is yours.

Send an email See my work

Sound familiar?

If one of these sounds like your business, there’s time to win back.

It doesn’t have to be that way. Let me show you how.

  • What I enter here, I have to enter again over there.

    Retyping

  • Putting a quote together takes me an hour.

    Slow quotes

  • Only one person really knows how it all works.

    Knowledge in one head

  • Our software can almost do what we need. Almost.

    Almost fits
Four steps · no surprises

How it works, step by step

At every step you know what happens and what it costs.

  1. Step 1 of 4 · Intro call

    You tell me where it hurts

    A 30-minute conversation, no sales pitch. List beforehand which software you use and which tasks take the most time: that way we get the most out of it.

    What it costs
    Free
    How long
    30 minutes
    What you do
    List your software and time sinks beforehand
  2. Step 2 of 4 · Quickscan

    We work out what could be better

    I map out where you lose time. Within 5 working days you get a report with solutions, how feasible they are and what they cost.

    What it costs
    €250 incl. VAT
    How long
    Report in 5 working days
    What you do
    One conversation of 45 minutes
  3. Step 3 of 4 · Build

    I build, you follow along

    We agree on the price after the Quickscan. Along the way you see working versions, not status reports.

    What it costs
    Fixed price up front
    How long
    Set out in the proposal
    What you do
    Try out the working versions
  4. Step 4 of 4 · Handover

    It’s yours

    Your software runs and you don’t depend on me. Want me to look after it? That’s possible for a fixed monthly fee.

    What it costs
    Included
    How long
    At handover
    What you do
    Nothing — it’s yours

What I build for you

Three kinds of custom work. Which one you need, we work out together.

All services
Integrations From €1,500

Your webshop, accounting and CRM exchange data automatically.

Your webshop, accounting, CRM and planning hold largely the same data. Just not automatically. I connect them, so an order, customer or invoice only has to be entered once.

More about integrations
  • Webshop ↔ accounting Orders and invoices end up in the right place automatically.
  • Extensions for your webshop or website When the standard setup falls short, I build what's missing.
  • Integrations with your CRM, planning or industry software The same data everywhere, without double work.
  • Monitoring You get a message when something goes wrong, instead of finding out weeks later.
Example · webshop extension

Customers put their own product together: pick a size, add packages, and watch the price update live. Every choice carried through neatly into the order.

Read the case
Custom tools From €3,000

A planner, quoting tool or customer overview that works the way your business works.

Plenty of businesses run on a spreadsheet that was handy once. Now five people work in it, things regularly go wrong and only the person who made it still understands how it works. I build a tool that does exactly what you need, and nothing more.

More about custom tools
  • Planning and scheduling tools Everyone sees the same schedule, and changes are right straight away.
  • Quoting and costing tools Prices and margins in one place, and a quote in a few minutes.
  • Dashboards and overviews for your team Every number you need on one screen.
  • Customer portals and online checks on your website that bring in leads Customers sort out what they can themselves, and requests arrive complete.
Example · custom tool

Visitors upload an unpaid invoice and see straight away how likely their claim is to succeed. Every request arrives with the invoice details already filled in and assessed.

Read the case
Automation Fixed price after the Quickscan

Reports, documents and emails that create themselves.

Making the same report every week, sending the same emails, moving the same data across. That work can run by itself, so you and your team have time left for customers.

More about automation
  • Reports and overviews that keep themselves up to date The numbers are ready when you need them, without copying and pasting.
  • Quotes, contracts and reports ready as a PDF automatically Always the right details and the latest version.
  • Automatic emails and reminders Sent at the right moment, without anyone having to remember.
  • AI where it genuinely helps Pulling data out of documents, sorting emails, summarising text.
Example · automation

The claim check pulls invoice details out of a PDF automatically. What staff used to work out themselves now arrives already filled in and assessed.

Read the case

Built for real businesses

See all my work
Custom tool · Website

Claim check for a debt collection agency

Visitors upload an unpaid invoice and see straight away how likely their claim is to succeed. Every request arrives with the invoice details already filled in and assessed.

Type
Custom tool
Part of
The existing website
Year
2026
Read the case
Extension · Webshop

Product configurator for a webshop

Customers put their own product together: pick a size, add packages, and watch the price update live.

Type
Webshop extension
Part of
The existing webshop
Year
2025
Read the case

Frequently asked questions

Short answers, all on the table.

Question not listed? Just ask me.
Price

What does an integration or tool cost?

Smaller integrations start at around €1,500. Custom tools start at around €3,000, depending on what they need to do. After the Quickscan you get a fixed price, so no surprises afterwards.

Time

How long does it take?

An integration is often done within a few weeks, a custom tool within 4 to 8 weeks. The proposal includes a concrete timeline.

Existing software

I already have software. Does it have to go?

Usually not. It’s often smarter to connect or extend the software you already have than to replace everything.

After handover

What happens after handover?

The code is yours, with documentation, so you don’t depend on me. Want me to look after it? That’s possible for a fixed monthly fee.

Ready for step 1?

An intro call is free. Want to know straight away where your time goes? Start with the Quickscan.

— Dimitri, RG Digital

Send an email A reply within 24 hours · NL or EN