My research focus is on tribology, which investigates the friction, wear and lubrication of contacting surfaces as well as related fundamental failure mechanisms. This gives basis to provide advanced tribological expertise and solutions for developing future design concepts for machine elements and frictional joints to improve their performance, service life and operation monitoring. This work is done with close collaboration with industry using high standard numerical and experimental methods. Main current research interests are fretting induced friction, wear and fatigue in frictional joints as well as lubricated rolling/sliding contacts in gears and bearings related to combustion engines, mineral crushers and gear drives in wind turbines and marine applications. Advanced tribological contact design improves energy efficiency, power density and reliability of machine elements and systems having essential contribution to Finnish industrial competiveness and sustainable development.