Nera Jelenčić was born in 2000 in Zagreb. She enrolled in the undergraduate program in Chemical Engineering in 2019 at the Faculty of Chemical Engineering and Technology at the University of Zagreb. At the same faculty, she enrolled in the Master's program in Chemical Engineering, specializing in Chemical Technologies and Products, which she completed in 2025. She completed her internship and wrote a scientific paper titled "Development of an Analytical Method for Determining Carcinogenic and Mutagenic Polycyclic Aromatic Hydrocarbons in PM10 Particles" at the Croatian Meteorological and Hydrological Service in the Organic Laboratory Department. For this scientific paper, she received the Rector's Award for individual scientific and artistic work in the academic year 2024/2025.

Since November 12, 2025, she has been employed at the Faculty of Chemical Engineering and Technology at the University of Zagreb, where she currently works as an doctoral assistant at the Department of Thermodynamics, Mechanical Engineering, and Energy.