From the architect to the foreman: How Köster Bau uses onlyfy to find the right person for every position

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applications a year through various channels


hires in one year via active sourcing


clearly above-average kununu score

onlyfy icon high five


appearance on XING & kununu

Situation & challenges

“One of our biggest challenges in recruiting is simply the wide range of different professions – from architects to foremen – that we have to fill at various career levels throughout Germany”, says Jan Schengber, HR Manager at the family-run Köster Group.

As one of Germany’s leading suppliers in the construction industry, this company hires around 450 new employees every year.

For the recruiting team at Köster Group, this starting point requires one thing above all: flexibility. “For us, it is quite clear that this broad range also means differences in approach”, Jan Schengber emphasises.


The solution – onlyfy

To successfully deal with this high recruiting complexity even with a compact team, the Köster Group has been relying on the product portfolio of onlyfy 360° for years. The recruiting and employer branding solutions are the perfect support for the construction company to find and inspire the right talent across all industries.

Jan Schengber has particularly fond memories of the joint development of an active sourcing strategy implemented together with his personal contact person at onlyfy: “During regular meetings, we defined a strategy for direct approach that was implementable and successful for us despite limited resources.” In the previous year alone, Köster succeeded in hiring 34 new employees through active sourcing. The company also regularly receives a large number of applications via onlyfy one Job Ads and visitors to onlyfy Employer Branding Profile by kununu & XING – last year Köster was able to generate 6,000 applications via all recruiting channels.


Conclusion & outlook

At the end of the day, as the Köster example impressively demonstrates, it is crucial in recruiting to intelligently bundle the right methods and channels. “It’s also about adapting the different recruitment processes to the different profiles”, the HR Manager emphasises.

And in future on Wednesday mornings? Jan Schengber will continue to study the pool of visitors to his various Job Ads. “Simply to discover talents that you might not have had on your radar through the other channels.”

Köster Group


Company size
2.000 employees


The Köster Group is a leading supplier to the construction industry in structural and civil engineering as well as tunnel construction throughout Germany. The service spectrum ranges from individual planning to turnkey construction.

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Products used

onlyfy 360°