We are consultants with technical expertise in IT Architecture, Open Source Technology, Agile Development and the Java Platform. We work in exciting and strategic projects, where we help our customers maximize return on IT investment by using leading edge technology. We offer a complete ran ge of services to establish, implement and maintain mission critical IT Systems. The company was founded in 2000, and is 100% employee owned. IT Architecture is our core business. Every consultant at Callista is an experienced IT architect and/or a proficient senior developer. We offer expertise in Cloud Technology & Microservices, Frontend, Technology Transition and e-Health.