Elitsa Kaloyanova is a computational biologist turned data scientist, with expertise spanning algorithms, data structures, phylogenetics, and population genetics. She holds a strong academic background in bioinformatics, with published research on constructing phylogenetic networks and trees. At 365 Data Science, she has played a key role in content creation, leading the 2021 initiative to develop practice and course exams across the program. This project required coordinating with multiple stakeholders, ensuring top-quality standards, and delivering a consistent learning experience for students worldwide.