Passionate. Committed. Creative.

Christian Schlierf

Christian is the Managing Director of Human Study. He has founded Human Study back in 2005. He has been the leading force of the organization ever since. Christian is an experienced prosthetist and orthotist with expertise in education and non-for-profit management.

Marcelo Alvarez

Marcelo is the Prosthetics and Orthotics Director of Human Study. He is a certified Orthotist Prosthetist and a University P&O Lecturer (San Martín University, Argentina). Marcelo has more than 20 years of clinical experience in P&O private and public services in South America and Europe.

Mehmed Latifagić

Mehmed is with Human Study since the founding days. An experienced e-learning expert, Mehmed is our Learning, Development and Instructional Design lead. He also manages the regional office in Bosnia and Herzegovina. Mehmed holds a university degree in electrical engineering.

Snežana Rajačić

Snežana is the head of our IT operations and at the same time Mathematics and Statistics lecturer in many of our courses. She is an experienced professional with a degree in Mathematics from the University in Belgrade.

Nicolás Muñoz

Nicolás is a prostehtics and orthotics teacher and project manager in Human Study. He is a Prosthetist/Orthotist with BSc degree in P&O and over 10 years of clinical experience. He has been a teacher in P&O since 6 years.

Ivan Pintar Krajačić

Ivan is a prosthetics and orthotics teacher and project manager in Human Study. He holds the Associate degree in P&O and has years of clinical and teaching experience in the field.

Nela Mujačić

Nela is an experienced project manager in Human Study. She has successfully managed projects for Afghanistan, SEE, Tunisia and Syria. She has an Associate Degree in Business Management.

Anamarija Miraščić

Anamarija is a project manager in Human Study on projects in the Middle East and Africa. She has over 20 years of experience in administrative and financial sectors, 10 of which in the NGO sector. Anamarija holds a BSc degree in Business Administration.

Melika Pašić

Melika manages HS SCOPe projects. She is a Cambridge University BA and MA graduate who also works as a teacher of English and Arabic.

Emina Schlierf

Emina is the head of administration in Human Study. With Human Study since 2006, she has actively contributed to the development of HS into an internationally recognized P&O school by working on project management, translation, administration, communications and PR. Emina holds MA degree from the FAU Erlangen-Nuremberg. 

Bojan Gajić

Bojan is Human Study LMS (Moodle) Administrator and IT support for all our projects.
He has a degree in Geology and Geochemistry from the Belgrade University, Serbia. Bojan is an experienced teacher with more than 15 years of teaching experience at a university level.

Irena Karamehić 

Irena has over five years experience working in the NGO sector and two years working in sales. She was a Program Assistant at Human Study for 2,5 years, and now holds the position of Project Coordinator. She is working on projects for Ukraine and Kurdistan.

Lamija Šerak

Lamija is the administrator of our Regional Office in Tuzla, Bosnia and Herzegovina. She has over 20 years of experience in finance and administration. Lamija has a Bachelors degree in Financing and Administration from the University in Tuzla.


Vedran Selimović

Vedran is the educational platform editor in Human Study. He has a degree in Management, Economics and Entrepreneurship from the University of Tuzla. Senior police officer by the day, he also has years of experience in teaching informatics.

Semir Karić

Semir is an experienced software engineer with 15 years of experience in the field. He has been with Human Study since the founding days as software developer and IT support. Semir has a degree in Computer Science from the University of Tuzla.

Zlatan Smiljanić

Zlatan is full-stack developer working as a software engineer and IT support with Human Study since more than 10 years.
Zlatan has a degree in Electrical Engineering (Computer Science department) from the University of Tuzla

Luai Alhallaak

Luai is an Electronic Engineer, Tishreen University, Syria, and an Associate Orthotist/Prosthetist (ISPO Cat II) with 9 years of P&O clinical practice. Based in Turkey, has experience as trainer, lecturer and program administrator. Currently studying a master in electronic engineering and ISPO P&O (CAT I) programme. Luai is with Human Study since the beginning of 2022 as a teacher and trainer in P&O.

Camila Planells

Camila is with Human Study since the beginning of 2022, working as the Project coordinator of our project in Colombia. She holds a degree in Political Science and has dedicated a large part of her professional career to the field of Non-Governmental Organisations.