Software development · Herbstein, Germany
Software developer and founder
I build software across the whole stack: Angular interfaces, NestJS APIs and the Kubernetes infrastructure they run on.
I like working where the interface meets the system: a component that feels right, an API that validates properly, and the cluster that ships both reliably.
Since 2024 I have been doing a shortened apprenticeship as an IT specialist for application development (Fachinformatiker Anwendungsentwicklung) at narz systems GmbH & Co. KG in Herbstein. There I work on the IIoT platform audako, mostly with Angular, plus NestJS and .NET.
Alongside that I run Tail Forge Technologies: IT services and web development for small businesses in the Vogelsberg region. Under the same company I build Faktigo, software for e-invoicing. Both run on a Kubernetes cluster I built and operate myself.
Four layers, one stack. Each project shows which layers I worked on and with what.
E-invoicing for small businesses
Founder · development and operations
Faktigo is software for freelancers and small businesses in Germany: ZUGFeRD and XRechnung invoices, quotes, dunning and bank reconciliation in one place.
Open-source components for Angular
Maintainer
elementar-rt is an MIT-licensed UI library for Angular, built on Material Design 3 and Tailwind CSS 4. It comes with five templates that run as live demos.
Kubernetes on my own hardware
Built and operated
An RKE2 Kubernetes cluster on my own hardware that runs my products in production: Faktigo, tailforge.de, a mail server, the elementar-rt demos and this site.
IT services and web development in the Vogelsberg region
Owner
Tail Forge Technologies is my company: IT support, web development, networks, video surveillance, VoIP and Microsoft 365 for small businesses around Herbstein, Lauterbach and Fulda.
IIoT and process control at narz systems
Work on the web interface of the IIoT platform audako and on Inframan, a device management solution. As a self-directed project: a configuration and diagnostics tool for Siemens SIMATIC IOT2050 gateways.
since 2024
narz systems GmbH & Co. KG, Herbstein
Shortened apprenticeship (Fachinformatiker Anwendungsentwicklung), vocational school at Theodor-Litt-Schule Gießen. Work on the web interface of the IIoT platform audako (Angular, Material Design 3, Signals) and on Inframan. Self-directed project: a configuration and diagnostics tool for industrial gateways with Angular and NestJS.
06/2026
Cisco Networking Academy
Next: CCNA Switching, Routing and Wireless Essentials.
in parallel
My own company
IT services for small businesses, my own e-invoicing SaaS, and running it all on my own infrastructure.
Also worked with JavaScript, Python, Java, Dart, Flutter and Ionic.
Questions about a project, elementar-rt or the cluster? Email is fastest.
rostik.tulikaProject requests for Tail Forge Technologies go through tailforge.de.