Kalle Hjerppe
 MS in Computer Science
 kphjer@utu.fi ORCID identifier: https://orcid.org/0000-0002-3737-4669  | 
 Areas of expertise 
software engineering; data protection; privacy
software engineering; data protection; privacy
 Biography 
Kalle Hjerppe is a doctoral student in the University of Turku software engineering lab. He has also received his bachelor's and master's degrees from UTU, beginning at the university in 2008. Aside from his studies and research, he has worked in the industry as a software engineer and an architect since 2013. His current position is an ICT-architect in the Hospital district of Southwest Finland and the transformation programme to Wellbeing services counties.
 Research 
Research interest is in using software engineering and architecture methods to make data protection easier and more effective.
 Teaching 
 Publications   
  
            - A Mapping Analysis of Requirements Between the CRA and the GDPR  (2025)  
- IEEE International Requirements Engineering Conference Workshops
 
(A4 Refereed article in a conference publication ) - Device sharing features: a study on software policy approaches and platform capabilities  (2025)  
- International Review of Law, Computers and Technology
 
(A1 Refereed original research article in a scientific journal) - The Potential of Citizen Platforms for Requirements Engineering of Large Socio-Technical Software Systems  (2025)  
- Lecture Notes in Computer Science
 
(A4 Refereed article in a conference publication ) - An Exploratory Case Study on Data Breach Journalism  (2024)  ARES '24: Proceedings of the 19th International Conference on Availability, Reliability and Security Ruohonen, Jukka; Hjerppe, Kalle; Von Zastrow, Maximilian
(A4 Refereed article in a conference publication ) - Extracting LPL privacy policy purposes from annotated web service source code  (2023)  
- Software and Systems Modeling
 
(A1 Refereed original research article in a scientific journal) - The GDPR enforcement fines at glance  (2022)  
- Information Systems
 
(A1 Refereed original research article in a scientific journal) - A Large-Scale Security-Oriented Static Analysis of Python Packages in PyPI  (2021)  2021 18th International Conference on Privacy, Security and Trust (PST) Ruohonen Jukka, Hjerppe Kalle, Rindell Kalle
(A4 Refereed article in a conference publication ) - Annotation-based static analysis for personal data protection  (2020)  
- IFIP Advances in Information and Communication Technology
 
(A4 Refereed article in a conference publication ) - Extracting Layered Privacy Language Purposes from Web Services  (2020)  2020 IEEE European Symposium on Security and Privacy Workshops (EuroS&PW) Kalle Hjerppe, Jukka Ruohonen, Ville Leppänen
(A4 Refereed article in a conference publication ) - Predicting the Amount of GDPR Fines  (2020)  
- CEUR Workshop Proceedings
 
(A4 Refereed article in a conference publication ) - The General Data Protection Regulation: Requirements, Architectures, and Constraints  (2019)  
- International Requirements Engineering Conference. Proceedings
 
(A4 Refereed article in a conference publication )