Lejerskar began his career at Volvo Aerospace as program manager for the Arianne 5 rocket program for the main engine rocket, where he was responsible for the coordination and development between Volvo, MBB, Fiat and SEP.
He then founded PFAB (Projektledning Portugal AB), a subsidiary in Portugal with Escandinavas Ltd., which developed construction and real estate. As CEO, Lejerskar built the company from a two-person operation to over 300 people. He also founded and ran PKAB, a company that focused on numerical simulation for virtual reality and interactive 3D.
In 1999, he co-founded EON Reality and also headed RealityBUY.com, a company which developed interactive 3D focusing on development, content and application. The company grew organically to a peak of US$240 million.
In 2009, he co-founded Greenwave Systems, a company which accelerates Internet of Things with a software and services platform that enables managed services simply, affordably and at scale. He helped grow that company organically to a US$190 million value.
His awards include Most Accomplished Businessman for Fastest Growing Company in Sweden, Co-winner with the CEO of Volvo AB of Chalmers University of Technology Daleen Prize, and Entrepreneur of the Year. He has been selected to speak in the capacity of a VR expert to the Asian Leadership Conference in 2015 and 2016.
Lejerskar holds dual Masters of Science degrees in Mechanical Engineering and Computer Science from Chalmers University of Technology, Gothenburg, Sweden.