Impact Delivered
Callista is a partner-managed IT company headquartered in Switzerland that specializes in providing experts, dynamic teams and managed capacity solutions for consulting, engineering and operational services. We combine the proximity and quality of a Swiss partner with the scalability of our nearshore center in Serbia. This model offers you maximum flexibility – cost-effective, reliable and future-proof.
Callista is an partner-managed IT company headquartered in Switzerland that specializes in providing experts, dynamic teams and managed capacity solutions for consulting, engineering and operational services. We combine the proximity and quality of a Swiss partner with the scalability of our nearshore center in Serbia.
Our Expertise
Our experts serve as an extended workbench or drive innovation as part of a team or as individual contributors - whatever is the right support for our clients. We are also here to cover temporary peaks or bridge bottlenecks.
Data Warehouse
Data Lakehouse
Analytics &
Business Intelligence
Software
Engineering
CRM &
Workflows
Cloud Platform
Engineering
Security
& IAM
Trusted by Industry Leaders
Trusted by Industry Leaders
Numbers
50+
Clients
120+
Experts
2010
Founded
700+
Engagements
Numbers
50+
Clients
150+
Experts
2010
Founded
700+
Engagements
Our Locations
Switzerland
General-Guisan-Strasse 8
CH - 6300 Zug
+41 43 540 56 85
Serbia
Balkanska 2
Belgrade
Join our Team
Are you looking for demanding projects and do you appreciate the exciting environment of our clients? Do you like working with cutting-edge technologies? Do you have a relevant track record in your area of expertise with years of experience?
Join our team and contribute to the creation of innovative IT solutions that drive business success. We are looking forward to receiving your application.
© 2025 Callista
© 2025 Callista