Invoicing software
For freelancers, agencies and service providers
From quote to invoice in one click: correct VAT, a PDF in your branding, emailed from your own address, a Mollie payment link and automatic reminders.
Lunar Code Tech builds web applications, backends, cloud and AI solutions for Dutch businesses — with the same rigor large organizations bring to their production systems.
Services
From a simple website to a webshop with iDEAL, a customer portal or an AI assistant — plus the marketing to win customers with it. Always fast, secure and GDPR-compliant.
Practical AI applications for business processes — from chatbots and internal assistants to LLM-driven automation, integrated into existing systems rather than a standalone experiment.
Example
Which invoices are still open?
Two — both due this week. Shall I draft a reminder?
From a sharp online business card to a complete company website that turns visitors into enquiries — fast, findable and easy to manage.
Sell online with iDEAL, credit card and more through Mollie — with stock, invoices with the right VAT and a clear admin panel.
Customer portals, booking systems and internal tools built to order — software around your process instead of Excel and manual work.
Google Ads, SEO and local visibility, set up with real marketing experience and measured with GDPR-compliant analytics.
Webshop, bookkeeping, email and CRM connected, and invoices or reports that create themselves.
Hosting, updates, backups and monitoring — plus security checks and speed optimisation for existing sites.
Solutions
No technical jargon — just what you get. A selection of the software we build, from invoicing tools to your own SaaS product. All tailor-made, all yours.
Your idea not listed?
This is only a selection. If it can run in a browser or on a phone, we can build it — tell us what you want to achieve and we'll help find the smartest approach.
Why Lunar Code Tech
Good software engineering shouldn't be exclusive to organizations with their own IT department. Lunar Code Tech brings that same discipline — considered, tested, maintainable — to Dutch SMEs and startups who take their digital product seriously. No advice without execution: we build it, from architecture to launch.
Stack · Next.js + PostgreSQL
Approach
No surprises, no vague scope. Five clear steps from first conversation to launch.
01
We map out goals, users, and constraints so it's clear what success actually looks like.
02
We define the technical approach — architecture, stack, and timeline — fitted to your situation, not the other way around.
03
Clean architecture, tested code, and weekly visible progress — never a black box until the deadline.
04
We ship to production — measured, monitored, and polished, not just 'turned on'.
05
We stay involved, iterate on real data, and keep the product healthy.
Expertise
7+ years of hands-on engineering, proven in production environments — not fabricated case studies, but the real capabilities every Lunar Code Tech project is built on.
Python (FastAPI) and Node.js (Express) services, React + TypeScript front-ends, object-level authorization, and cloud-native deployment on Azure with CI/CD and automated tests — the same rigor we bring to every client project.
Experience supporting telecom billing and an Online Charging System (OCS) across an international rollout — the kind of depth that makes complex system integrations feel routine.
Python-based data gathering, analysis, and visualization — building the pipelines that turn raw business data into something you can actually act on.
Time-series analysis and reporting dashboards, grounded in a real statistics background — numbers you can trust, not vanity metrics.
Lunar Code Tech accepts a limited number of new clients per quarter, so every project gets the attention it deserves.
In practice
A real, running client project: from the first line of code to today's campaigns.

Featured project
Webshop for custom glass sliding walls
From the first line of code to today's campaigns: a complete webshop where customers configure their own glass sliding wall — glass colour, frame colour and dimensions — and instantly see the result. Lunar Code Tech built the platform and runs both the technology and the Google Ads campaigns.
Our role
How we work
01
Details are the product. No half-finished implementations, no loose ends.
02
We treat your product like our own — from architecture to launch.
03
Clear scope, clear timelines, no jargon. You always know where things stand.
04
Tested, maintainable code — built to last for years, not to break tomorrow.
Investment
Every project is different — that's why we work with clear, per-project quotes instead of fixed price tags.
A clearly defined scope, fixed price, and delivery date. Ideal for an MVP, new website, or specific feature.
Request a quoteA monthly engagement for teams that want to keep building continuously — with dedicated availability and priority.
Request a quoteInsights
Practical pieces on our approach and the tech choices we make — for anyone who'd rather see how we think than read a portfolio.
iDEAL is gradually merging into the European Wero. What has already changed, what happens at the end of 2026 and in 2027, and what you should arrange now.
Since 28 June 2025, many webshops and apps must be digitally accessible, and the Dutch ACM checks it. Who it applies to and what you concretely need to do.
The Dutch government is making e-invoicing between businesses mandatory from 1 July 2030. What an e-invoice is, what changes, and why a PDF will no longer be enough.
Under the hood
You don't need to know any of this — but if you want to: we build with widely adopted tools that will still be maintained five years from now. No hype stack.
Frontend
Backend
Data
Cloud & DevOps
AI
FAQ
We design and build web applications, backends, and cloud infrastructure for Dutch businesses — from first idea to production, with the same discipline used on large enterprise systems.
Contact
Looking for a project quote, or just want to bounce around an idea? Fill in the form — we reply quickly.