Photo: Ms. Joanna Fokczyńska-Patyk © Ruß Ingenieure AG
With the Anna-Lindh-Haus project (Link to the blog post), Ruß Ingenieure AG demonstrates how complex BIM projects can be successfully delivered through innovative design, technical expertise, and digital tools. Throughout all planning stages, the LINEAR software solutions provided a reliable foundation for modeling and calculating building services and supported efficient collaboration among all stakeholders.
This successful partnership between Ruß Ingenieure AG and LINEAR GmbH extends beyond software. It is also shaped by personal connections and the exchange of technical knowledge between the two companies. A notable example of this is Ms. Joanna Fokczyńska-Patyk (see picture above).
She completed her master’s degree in environmental engineering in 2019 at Wrocław University of Science and Technology in Poland, specializing in heating, ventilation, plumbing, and cooling. She then moved to Berlin, where she began her career at the building services consultancy Schimmel Beratende Ingenieure.
Since joining Ruß Ingenieure AG in 2021, she has progressed from project engineer to project manager, overseeing numerous complex construction projects, both completed and ongoing, including:
- SQ1-B Office Complex (Gross floor area: 24,600 m², Project Phases 1–8)
- SQ1-C Office Complex (Gross floor area: 30,000 m², Project Phases 3–5)
- DIZ Greifswald Digital Innovation Center (Gross floor area: 8,900 m², Project Phases 1–3)
- TU Berlin, Building B (Gross floor area: 2,474 m², Project Phases 2–3)
She has been a member of the Supervisory Board of Ruß Ingenieure AG since 2023. She is also actively involved in mentoring at the Mentoring F2F Foundation and Wrocław University of Science and Technology.
The connection with LINEAR began early, as Ms. Fokczyńska-Patyk was already familiar with the software from her previous role. When Ruß Ingenieure AG introduced LINEAR as its design solution in 2022, she was able to apply her experience directly to day-to-day project work.
Another milestone followed in 2025. In discussions with Jörg Rieling, LINEAR’s Sales Manager for Northern and Eastern Germany, she learned of plans to further develop the software for the Polish market and make it available in Polish. Her technical expertise, international experience, and close ties to both markets inspired the idea of working together.
Following careful preparation and coordination, Ms Fokczyńska-Patyk began working with LINEAR GmbH in February 2026 alongside her role at Ruß Ingenieure AG. The collaboration aims to actively support the continued development of LINEAR software for the Polish market, build new networks, and strengthen the exchange of technical knowledge between the two countries and companies.
Both sides benefit equally from this synergy: experience from different markets and design processes is brought together, knowledge is shared, and new perspectives emerge. At the same time, the close links between engineering practice, software development, and international exchange continue to grow.
All parties involved are looking forward to working together and to continuing to expand this successful partnership across companies and borders.
You can find more information about Ruß Ingenieure AG below.

Ruß Ingenieure AG: represented by the Chairman of the Management Board, Thomas Ruß, Dipl.-Ing. | Am Studio 20 a | 12489 Berlin
Ruß Ingenieure AG has a history spanning more than 30 years. Based in the Berlin-Adlershof Technology Park, one of Germany’s most advanced science and innovation hubs, the company develops innovative, resource-efficient building services designs. Their expertise covers the design of complex, project-specific plumbing, heating, air conditioning, electrical, and building automation systems. With a current team of 33, the company covers all service phases defined by Germany’s fee schedule for architects and engineers (HOAI).
Their design process uses powerful IT and BIM systems, including Autodesk Revit, Autodesk Construction Cloud, BIM 360, LINEAR, Caneco, Office M365, Microsoft Azure, and CITRIX. In addition, BIMcollab is used for model-based coordination and clash detection, while DALUX enables on-site access to models during construction. These tools ensure a fully model-based, collaborative design workflow in which area calculations, quantity take-offs, 2D drawings, and the discipline-specific models delivered to clients and contractors are all derived directly from the model. This model-based approach is maintained consistently throughout all project phases and lays the foundation for the building’s future operation.
For more information about the company, please visit: https://www.rusz.de/en/