Summary
Jarno Rantaharju is a Research Software Engineer with 14 years of experience translating advanced theoretical physics into high-performance scientific software across universities in Finland, the UK, Japan, and the US. Holding a PhD in Theoretical Physics from the University of Helsinki, he specializes in numerical simulation and computational physics and has a track record of designing and implementing lattice field theory simulations for leadership-class HPC systems. At Aalto University he supports research workflows and at previous roles helped researchers turn theory into publishable results and competitive grant proposals. Comfortable both as an independent researcher and as a specialist developer, he combines deep physics insight with practical software engineering for scalable, performance-critical code. Based in Espoo, he brings academic rigor to reproducible research software and often bridges the gap between domain scientists and HPC engineering.
14 years of coding experience