Callista
Jan Västernäs is an accomplished professional with extensive experience in leadership and consulting roles within the technology sector. Serving as Styrelseordförande och Ekonomiansvarig as well as CEO and Software Architect at Callista since January 1997, Västernäs has demonstrated a strong ability to manage and innovate. Prior experience includes a consultant role at Devenator from 1992 to 1995 and at Compex datakonsulter from 1984 to 1990. Västernäs holds a Master of Science degree in Physics from Chalmers University of Technology, earned between 1975 and 1980.
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Callista
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.