Leonidas' passion for sexual and reproductive health and rights (SRHR) initially sparked during his time as a volunteer in a Greek HIV civil society organization. There, he actively supported individuals living with HIV and worked to promote positive sexual health practices. Building on this experience, he subsequently served as a research officer for an international NGO dedicated to assisting asylum seekers and refugees from the LGBTQ community.

To deepen his understanding of regional dynamics and human rights issues, Leonidas pursued a 1-year traineeship at the European Parliament, focusing specifically on the MENA and Middle East region. During this time, he delved into the complexities of human rights situations in the area.

Currently, Leonidas contributes his expertise to Alphea as a Senior Policy and Research Officer. In this role, he diligently monitors and analyzes policy developments, publications, significant events, and crucial decision-making interventions at the EU level concerning sexual and reproductive health and rights, development, demography, and population policies. Additionally, he actively engages in advocacy efforts, supporting both national and European Members of Parliament working on SRHR and other pertinent topics. He is also EPF representative at the Parliamentary Assembly of the Council of Europe (PACE), advocating with selected Members of Parliaments on pushing forward issues related to reproductive health and gender equality.

One of Leonidas' primary projects involves conducting research, analysis, and comparative studies on HPV policies across European countries. He collaborates closely with parliamentarians, providing them with valuable insights on how they can enhance their respective policies.

He holds a bachelor's degree in Philosophy and the History of Science from the University of Athens, and two master's degrees: in Entrepreneurship and Innovation from the University of Edinburgh and in International Relations from the University of Strasbourg.

He is fluent in English, Greek and French and has a good command of Spanish.