How Matthias Gabriel Is Building the Banking Infrastructure of Tomorrow at Raiffeisen
An Interview with Rockstar Recruiting Co-Founder Klaus Fuchs and Matthias Gabriel
Careers in Deep-Tech rarely follow a straight path. They evolve through new technologies, new work models, and personal ambitions. The journey of Matthias Gabriel, a software engineer who worked with Rockstar Recruiting on a project-based model, highlights the growing flexibility and opportunity within today’s technology labor market.
Building Impact Through Project-Based Work
After starting his career as a software developer and later moving into technical project leadership, Matthias reached a point where he was searching for something new after working in IT consulting. While he was ready for a fresh challenge, he did not want to take on the full risk of building his own firm. Instead, he was looking for a model that combined entrepreneurial freedom with stability.
Rockstar Recruiting provided exactly that solution. Matthias joined Rockstar with the goal of finding the right project, and Rockstar successfully connected him with a long-term opportunity at Raiffeisen.
What began as a single assignment evolved into a collaboration lasting more than two years, during which Matthias contributed to complex backend systems responsible for aggregating and transforming enterprise data streams.
This collaboration also reflects the broader partnership between Raiffeisen and Rockstar Recruiting. As a trusted vendor, Rockstar supports Raiffeisen specifically in the field of Java software engineering, providing highly skilled engineers for critical development initiatives.
The team worked with modern technologies including Spring Boot, Kafka, and increasingly Kotlin, reflecting broader shifts across the enterprise software ecosystem toward event-driven architectures and modern JVM languages.
Growth for Engineers and Employers
Experiences like Matthias’ highlight how project-based collaboration can benefit both engineers and companies in deep tech. Professionals gain exposure to complex environments while maintaining flexibility, and organizations benefit from highly specialized expertise applied to critical technology initiatives.
At the same time, companies like Raiffeisen benefit from a flexible and reliable partner model. Through Rockstar Recruiting, they are able to quickly access proven Java engineering talent, scale teams efficiently, and ensure continuity on mission-critical systems - without compromising on quality.
Successful collaborations often evolve into long-term relationships. After more than two years on the project, Matthias recently transitioned internally to Raiffeisen, allowing him to continue developing within a large and innovative technology organization.
Beyond Technology: The Via Alpina
Before beginning this next chapter, Matthias is preparing for a different challenge: a multi-month journey along the Via Alpina, a long-distance hiking route that crosses the Alps from the Adriatic region toward France and the Mediterranean.
The route spans more than 2,000 kilometers and requires endurance, adaptability, and careful planning. For Matthias, the experience represents a deliberate break from daily routines and an opportunity to focus on a simple rhythm: moving forward step by step.
A Modern Deep-Tech Career Path
Matthias’ story reflects broader trends in the technology sector. Careers are becoming more flexible, project-driven, and experience-oriented. For both engineers and employers, openness, collaboration, and continuous learning remain the key ingredients for long-term success in deep tech.
For organizations facing increasing pressure to deliver complex software systems, this model offers a compelling alternative: access to top-tier engineering talent through trusted partners like Rockstar Recruiting. The collaboration with Raiffeisen demonstrates how companies can successfully scale their capabilities while maintaining long-term stability and quality.

