Expanse
Expanse — Severin Kistner
IT Consulting &
Software Products
15 years of experience in software engineering, architecture, and technical leadership. We build our own products in RegTech and consult for companies on complex software projects.
Our Product
The Taurus
Compliance platform for political advertising transparency under EU 2024/900
The Taurus makes the EU regulation on political advertising transparency actionable — for parties, candidates, NGOs, newspapers, and online publishers. From creating transparency notices to machine-readable API access.
Other Projects
ColCur completed
ML platform for collectible coins as alternative assets. Computer vision on 300GB+ image data, Ray/Kubernetes.
Takona completed
Finance app for gig workers. Mobile-first (ReactNative), backend with Nest.js. 2019–2022.
Consulting & Development
Beyond our own products, we consult and develop for companies — as an embedded consultant, architect, or developer. With modern AI tools like Claude Code in the workflow and 15 years of experience down to Linux config debugging.
Software Architecture
System design, modernization, DDD. Migrating legacy systems to modular architectures.
Full-Stack Development
React, TypeScript, Python, Node.js, Java/Spring. From frontend to ML pipeline.
Cloud & Infrastructure
Kubernetes, GitOps, AWS/GCP/Azure. CI/CD and Infrastructure as Code.
Technical Leadership
Tech lead, architecture decisions, team setup. First leadership role at 25.
Industry Experience
Discuss a project?
I'm open for new projects — as a consultant, architect, or developer.
Get in touch