
Custom extensions, API integrations, and seamless embedding into your system landscape.
Standard software often covers 90% – we close the last gap. We develop Nodes & Flows, connect Node-RED with your tools, and automate workflows.
From API integration to complete custom solutions – we cover the entire spectrum.
We make your systems talk to each other. Whether REST, GraphQL, or webhooks – we connect software with your CRM, ERP, or identity provider.
Often data formats from System A don't match System B. We develop middleware that sits in between, transforms data, and controls processes.
Want to use software features in your own intranet or customer portal? We embed software headlessly and build custom UIs around it.
Save manual work through intelligent automation. We develop bots and scripts that handle tasks automatically.
Node-RED bridges visual programming and complex backend logic. The modular architecture allows us to develop custom nodes that seamlessly integrate into existing flows.
We control the Node-RED runtime programmatically: deploying flows, restarting instances, or dynamically adjusting credentials via API – ideal for multi-tenant systems.
Node-RED is natively asynchronous. We develop custom nodes that react to hardware events, MQTT messages, or database triggers and start complex logic chains.
When standard nodes aren't enough, we develop custom NPM modules. Packaged as native Node-RED nodes, with custom HTML configuration interface and performant JS logic in the backend.
How we implement Node-RED development in practice.
Old production machines speak proprietary protocols (S7, Modbus, serial interfaces) that modern cloud systems don't understand.
Node-RED as edge gateway translates local machine data, filters out noise, and sends only relevant metrics securely to the cloud via MQTT/HTTPS.
A frontend needs to query 5 different APIs, leading to load times and CORS issues.
A Node-RED flow aggregates all 5 requests in the backend, transforms JSON structures, and delivers a clean, consolidated response object to the frontend.
Non-technical employees should be able to modify automation rules (If X then Y) without calling the developer.
We integrate the Node-RED editor 'read-only' or restricted into your admin panel, so power users can visually adjust logic.
Update-safe, scalable, and secure – why you should trust us with your development.
We don't modify the open-source software's source code. Instead, we use official APIs and plugin architectures. Your installation remains updatable and maintainable.
We understand not just the code, but the infrastructure beneath it. Our developers know how queries affect database performance and how to build scalable APIs.
We use modern, type-safe technologies: React, TypeScript, Node.js, Python, Go. Plus PostgreSQL, Redis, and Docker/Kubernetes for infrastructure.
Every line of code is written with security in mind. Input sanitization, secure authentication (OAuth2/OIDC), and compliance with data protection regulations are standard.
Our Tech Stack
From requirements to go-live – transparent and structured.
We review API documentation, analyze your requirements, and identify optimal integration points.
We design the solution: middleware, plugin, or script. Data flows, interfaces, and security concept are defined.
Agile implementation with code reviews, automated tests, and continuous coordination. You see progress in real-time.
Integration into your CI/CD pipeline or hosting on our infrastructure. Documentation and training included.
Let's get technical. We'll assess feasibility and effort.
Discover all Node-RED services from WZ-IT.
Whether a specific IT challenge or just an idea – we look forward to the exchange. In a brief conversation, we'll evaluate together if and how your project fits with WZ-IT.
Timo Wevelsiep & Robin Zins
CEOs of WZ-IT

