Expert
Mateusz Sławiński

Mateusz
Sławiński

Talent Manager

Talent Manager watching over the well-being of our team. Experienced recruiter always looking for new talents to join Callstack. Passionate about cinema and football. Dog person.
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“Working with Callstack has helped us complete several large projects and raise the developer IQ!”
Todd Williams
TrueCar

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Mike Grabowski

Co-Founder & CTO

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Mike Grabowski