SaaS Product· 14-day MVP

SlimKlantPortaal.nl

From market feedback to a working product, built by demand from Joost, Denise and Sietse

The story

Before

Three professionals with the same frustration: Joost wants to request energy labels faster, Denise looks for secure customer communication, Sietse wants to automate payments after structural calculations.

Obstacle

Everyone works differently. Joost has a different flow than Sietse. Every existing system forces one way. They want flexibility, not rigid software.

Insight

Don't build a solution for one client. Build a platform that supports multiple workflows. Make it a Seven Technologies product that evolves with user feedback.

After

14 days later: working MVP. Joost, Denise and Sietse test and give feedback. Their input shapes the product now called SlimKlantPortaal.nl.

The first 14 days

From concept to working prototype.

1
Day 1

Kickoff and customer-intake flow mapping

We map the entire intake journey. From first contact to complete dossier. Which documents? In what order? What always goes wrong?

2
Day 2

Wireframes and user journey

Screens for customer and administrator. How does it feel for someone seeing this for the first time? We keep it simple.

3
Day 3

Database architecture

Clients, dossiers, documents, notifications. Everything structured and secured. Privacy by design from line one.

4
Day 4

Auth and portal setup

Login system with magic links. No passwords, no hassle. Every customer gets their own secure space.

5
Day 5

Document upload and storage

Drag-and-drop, file type validation, encryption. Files are securely stored and directly linked to the right dossier.

6
Day 6

Admin dashboard MVP

The team now sees all dossiers in one overview. Status tracking: new, incomplete, complete. No more Excel needed.

7
Day 7

First demo with team

We show what's there. The team tests the flow, clicks around, gives feedback. We note everything that can be improved.

8
Day 8

Notification system

Automatic emails on new documents, incomplete dossiers, deadlines. For client and administrator alike.

9
Day 9

Custom forms builder

The team can now make forms themselves. Add fields, make required, add logic. No developer needed for every change.

10
Day 10

Status tracking and workflow

Dossiers now go through statuses. From intake to completed. Team members get tasks assigned. Nothing falls through the cracks anymore.

11
Day 11

Client-side interface polish

Customers must like it. Clear instructions, progress bar, confirmations. No doubt about what still needs to happen.

12
Day 12

Security layer and encryption

All uploads encrypted. 2FA option. Audit logs of who viewed what when. Privacy-proof.

13
Day 13

Integration with existing tools

Webhook to their CRM. Automatic Slack notifications. Email forwards. The portal talks to the rest of their stack.

14
Day 14

Training and go-live

The team learns how to manage the system. We go live with the first real customers. It runs.

1-3 months later

Roadmap: from MVP to multi-tenant platform

The product is only 1 month old. Joost, Denise and Sietse use it daily and constantly give feedback. The coming months: perfecting their specific workflows, adding new users from their networks, and preparing the platform for scaling. Every feature is tested in practice before being generally available.

Goal: 10 active users within 3 months
Process all feedback from founding users
Develop mobile app for on-the-go
Expand payment integrations (Stripe, Mollie)
First paying customers outside founding users

1 year later

Vision: the customer portal for freelancers in the Netherlands

In a year we want SlimKlantPortaal.nl to be THE platform for freelancers and small agencies that want to communicate professionally with customers. Multi-tenant, white-label option, API for connections. We build it step by step, tested by real users. No big bang launch, but organic growth based on word-of-mouth and proven value.

Goal: 100+ paying users
White-label option for larger agencies
API for integrations with accounting software
Marketplace for industry-specific templates
Break-even and self-sustaining as product

"I wanted secure customer communication and document management. After 14 days I had a working system. My feedback is taken seriously and processed directly. This feels like our product."

Denise, Founding User SlimKlantPortaal

Technology

Vue.jsTypeScriptLaravelPostgreSQLWebhooksPostmarkDocker

Ready for your story?

Let's discuss what we can build for you.

Call 085 083 5775

No-obligation intake