Austėja Letukienė is a licensed medical geneticist and researcher specialising in the intersection of genomics, exercise physiology, and metabolic health. Based at Vilnius University, she leads the Population Genomics Laboratory, where her team investigates sports genetics, kinesiogenomics, and the molecular mechanisms of obesity and physical performance.

Her academic work explores genotype–phenotype relationships and their application in endurance training, injury risk prediction, and metabolic adaptation. In 2024, she co-authored presentations at the European College of Sport Science (ECSS) Congress in Italy, contributing data on elite athlete profiling and the effect of aerobic training in overweight women. She has also conducted scientific internships at the Karolinska Institute, where she examined immune responses to elite-level sport.

In the lab, she advances prognostic and predictive modeling for athletic performance, obesity, and endurance through genome-wide association and AI-powered annotation algorithms.

Letukienė is the founder of In Genes, a personalised medicine start-up that applies next-generation sequencing and AI-driven genomic analysis to support precision health care and athlete development. She is an advocate for data-informed approaches in sports medicine and is currently pursuing a PhD focused on predictive genomics in metabolic and athletic performance.