Custom websites and web applications, built by one engineer
Codavo is the software studio of one senior engineer in Rotterdam. I build custom websites and web applications that bring in customers, with a client portal underneath that keeps your site growing. Straight from the builder, AI-accelerated, live in weeks.
Recent clients
Results that matter
Live in 2-8 weeks
Direct contact with the developer
7 years building critical systems at Eneco
AI-accelerated development
Your website brings the customer in. The rest runs itself.
Codavo connects customer acquisition, self-service and business processes in one maintainable solution: from first enquiry to completion, with as little manual work as possible.
- A website that brings in relevant enquiriesClear positioning, convincing cases and smart intakes help serious buyers take the right step faster.
- A web application that reduces manual workPortals, dashboards and workflows give customers and employees one reliable place to do their work.
- API and AI as part of the processExisting systems share data and AI supports language- and document-heavy tasks where it demonstrably adds value.
MacBook Air
Connects with the tools you already use
Mollie
Stripe
Exact
Moneybird
WhatsApp
Gmail
Google Calendar
Outlook
HubSpot
Slack
Microsoft Teams
Google Sheets
Excel
Shopify
WooCommerce
Calendly
DocuSign
Zapier
Different system? If it has an API, it can be connected.
Custom web software for growing businesses
From acquisition website to business-critical portal. Every solution starts with a concrete customer or process problem.
Workflow automation
Recurring manual work disappears: enquiries, planning, documents and follow-up run automatically, with checks where needed.
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Web applications
Secure software for unique workflows, user accounts, payments and processes that don't fit an off-the-shelf package.
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Client portals
One secure environment for documents, status, planning, requests and communication with clients or partners.
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API integrations
Connect CRM, ERP, planning, payments and other systems so data no longer needs to be copied by hand.
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Recent results
No mock-ups, but real products that bring in customers.
yourivankoppengolf.nl
Youri van Koppen Golf Performance
Live- Problem
- Bookings ran through phone and WhatsApp. Leads got lost in chats.
- Solution
- Premium website with a free Swing Check client tool and online booking via iDEAL.
- Result
- Students now book themselves 24/7 and warm leads come in without extra marketing.
golfly.nl
Golfly
Live- Problem
- Golf pros work with a patchwork of disconnected tools.
- Solution
- One platform with website, online booking, iDEAL payments, and the Swing Check.
- Result
- Coaches go live within a week. Grew into its own SaaS product.
opairly.nl
Opairly
Live- Problem
- Host families coordinate their au pair through WhatsApp chaos and loose notes.
- Solution
- Own SaaS with dashboard, tasks, house rules, weekly schedules, and hour tracking.
- Result
- Everything in one central place. Grew into a real, paying SaaS product.
Available for new projects
Who builds your project?
You work directly with me. No layers in between.
I'm Sjoerd. No account manager, no junior who 'picks it up'. You talk to the developer who builds your product, from first sketch to launch.
- No account managers, you always deal directly with me
- Ideas picked up fast, feedback acted on the same day
- 7 years engineer at Eneco, now fully focused on your project
- AI-accelerated building: live in weeks, without agency overhead
Sjoerd Ligtvoet, founder of Codavo
How we work together
From first conversation to working software. In three steps, with a working preview before I build anything final.
- 01Introduction & StrategyWe discuss your goal, your customer and your process. You get a clear proposal with approach, timeline and investment.
- 02Design & BuildI build iteratively, accelerated by AI tooling. You always see a working preview and steer directly.
- 03Launch & GrowYour software goes live in a controlled way. I stay available for maintenance and further development.
Fair pricing
Transparent and without surprises. Every project is custom, but this gives you an idea of the investment. All prices are excluding 21% VAT.
Website
A professional website that attracts customers.
From €2,500
one-time
- Fast track: from a few days
- Responsive on every device
- SEO: findable on Google
- Easy to update
- Custom client tool included
- Access to your client portal
- Hosting: from €0/month
- 30 days support after delivery
Web Application
RecommendedA complete growth engine for your business.
From €5,000
- Delivered in 4-8 weeks
- Everything from Website, plus
- User accounts and authentication
- Dashboard and admin panel
- Automatic follow-up
- Payment integration (Mollie/Stripe)
- Ongoing: from €175/month (see below)
Custom Platform
A large-scale platform or long-term partnership.
Custom
project-based
- Timeline by agreement
- Everything from Web Application, plus
- Complex integrations and connections
- Scalable architecture
- Ongoing development partnership
- Hosting and maintenance included
- Monthly progress and roadmap
Working preview before I build 50% upfront, 50% on delivery Live only when you are happy
After launchYour website goes live. And that is when it starts.
Most sites go stale the day after launch. Yours will not. Every client gets their own portal to keep their site growing.
Point at what you want to change
Click on your own live site to show what should change, or record it. It becomes a task automatically, and an AI assistant sharpens your request in your own language. No back-and-forth emails.
See what your site brings in
Visitors, enquiries, your Google positions and your site uptime, every month, in a clear report that ties the numbers to the work that was shipped.
Transparent, by the quarter hour
Changes are billed per 15 minutes at a fixed hourly rate. You see the estimate up front and exactly where the hours went afterward. No surprises.
This is not a story. I run my own business on exactly this software. You are using what I would build for you.
OngoingAnd after that?
Every website comes with access to your own client portal. Expecting few changes? Then you do not need a subscription, you simply pay per change. Want me to actively look after your site and help it grow? Then pick a plan. All amounts exclude 21% VAT.
Pay as you go
For when you expect few changes.
€0 - €20
per month hosting
- Access to your client portal included
- Changes on request, €125/hr billed per quarter hour
- You only pay when something needs doing
- Fast, secure hosting on European infra
- SSL, backups and updates included
Maintenance
I keep your site actively looked after, so you do not have to.
€175
per month
- Everything from Pay as you go, plus
- Your changes included within fair use
- Larger jobs quoted in advance, no surprises
- Uptime monitoring with alerts
- Proactive security and updates
- Priority on your requests
Growth
RecommendedGrow your site and see what it brings in.
€400
per month
- Everything from Maintenance, plus
- Insights dashboard (visitors, enquiries, positions)
- Monthly performance report
- Keyword tracking via Google Search Console
- Priority on your requests
Ready to lead your market?
On Growth you see your growth. On Growth Pro we do it for you. Weekly SEO and AI-visibility work (does ChatGPT mention you?), found, written and shipped on your own site by us. From €1,500 per month, excl. VAT. Need more? Custom quotes above that.
Built on trust
Feedback from entrepreneurs I work with.
Absolutely delighted! From the start, my wishes and vision were really taken on board. He responds quickly and keeps to what's agreed. Everything I had in mind, he managed to translate perfectly into a professional, stylish website that fits my business completely. What I value most is that things aren't just executed, but actively thought through with you. The sense that "anything is possible" gives a lot of confidence. I'm quite a perfectionist and had many specific wishes, but nothing was too much to ask.
The Skin Club
Cosmetic clinic
Sjoerd doesn't just build 'something', he genuinely understands the feeling and experience I want to create for my clients. Ideas are picked up fast, feedback is acted on right away, and he actively thinks along in solutions. Definitely a recommendation.
Youri van Koppen
PGA Teaching Pro, Golfcenter Seve
Tell me about your idea
In 30 minutes we'll discuss your project and which tool would bring you customers. No obligations, no sales pitch.