Christoph Rössler

Christoph Rössler

Freelance Full Stack Software Developer · Vienna, Austria
About

I'm a freelance full stack developer based in Vienna, building web and backend applications since 2018. My work spans frontends and backends — for clients ranging from retail giants to AI startups.

I also teach at WIFI Vienna — JavaScript, HTML, CSS — which keeps me sharp on fundamentals and reminds me what it's like to learn something for the first time.

Clients
Decidio GmbH
WIFI Wien
Quazr GmbH
JUKUS
Skills
Languages
C# Java JavaScript TypeScript Python PL/SQL HTML CSS
Databases
PostgreSQL Oracle DB MongoDB MS SQL Server
Frameworks
.NET Spring NodeJS React WPF RabbitMQ Kafka NHibernate Entity Framework PyTorch TensorFlow Allure Playwright Artillery
DevOps
GNU/Linux Kubernetes Helm GitLab CI Azure DevOps Jenkins Docker
Agentic
Claude Code Codex
Architecture
BIM Revit Rhino Archicad AI in Arch. Design
Methods
Scrum Kanban Requirements Engineering Stakeholder Management
Languages
German Native
English Advanced
Italian Basic