Cruz Kiss

Here is the description:

Full-Stack Developer - SaaS CRM Platform, Healthcare Sector

2025 - present

Design and development of a multi-tenant SaaS CRM platform for a consultancy firm active in preventive healthcare. The platform supports physiotherapy practices and lifestyle centers in the Netherlands in managing leads, members, and marketing performance.

Implemented functionalities:

Multi-tenant architecture with role-based access control and complete data isolation per client.

Lead management system with automated email flows and appointment scheduling.

Integration with external advertising platforms for real-time campaign data and conversion tracking.

Connection with external member management systems for retention and churn analysis.

Aftercare portal with automated follow-up sequences and task management.

Occupancy rate calculator with employee performance tracking and historical reporting.

Forecast vs. actual dashboard for member growth objectives

Central client portal with license management for multiple applications

Technical environment:

Node.js · Express · PostgreSQL · Render · JavaScript · Chart.js · Meta Conversions API · REST API integrations · Automated email systems · EasyCron

Security & infrastructure:

Full security audit of all API endpoints, session-based authentication with bcrypt, and server-side data isolation per tenant.

Assisting Technogym customers by phone/email with questions or issues regarding mywellness cloud.

● Remotely updating Technogym equipment.

● Configuring (cardio) equipment and formats on location for customers (Group cycles, Bio Circuit, Skillbike, teambeats).

● Connecting hardware (Inbody, Tanita, TGS key readers) to the mywellness platform via remote support.

● Integration (troubleshooting, reporting incidents to 3rd parties, matching members).

The integration is a connection between our database and that of a 3rd party with whom our customer wants to collaborate.