we are cynkra


We are a team of data scientists who share a passion for the R ecosystem. We use our broad skill set to help our customers leverage R-powered analytics across a range of industries and applications.

Data Science


Adriana Clavijo is currently concluding a Master's degree in Statistics and Data Science at the University of Bern. She has experience working in data analysis and applied statistical methods in diverse contexts such as finance, macroeconomics, test and survey data, and consulting. She is also experienced in data processing and modelling with both R and Python. Adriana joined cynkra in December 2021.

Data Science


Andrea Ranzato is a data scientist with experience in data wrangling, visualization and reporting using R. He started using the tidyverse professionally at the fraud department of an online retail business with global reach. He gained further experience consulting both in the public and private sector. Andrea got his M.Sc. in Data analytics in Milan, Italy. He joined cynkra in April 2022.

Data Science


Angelica Becerra is a statistician and data scientist with experience in consulting governmental offices on large-scale survey studies and statistical analysis. She has developed data analysis projects using R and Python with a focus on visualization, web scraping, and reports. Angelica has an M.Sc. in Social and Economic Data Analysis from the University of Konstanz, Germany. She joined cynkra in November 2020.

Data Science


Antoine Fabri is an engineer, science enthusiast and musician, with extensive experience as an R developer and data scientist. He has worked in various industries such as retail, advertisement, banking, and airport logistics. He is the author of various CRAN packages, such as flow, boomer, and unglue. Antoine has a Master's degree in Civil Engineering from the University of Brussels. He joined cynkra in September 2021.

Lead Analytics


Christoph Sax is a passionate economist and data scientist with more than 13 years of experience in R and has extensively consulted private companies and governemental offices. He is the author of several R packages that are related to time series processing, such as seasonal and tsbox. Christoph holds a Ph.D. in economics from the University of Basel and is a founder and partner at cynkra.

Lead Shiny


David Granjon joined cynkra in September 2023 and holds a PhD in applied mathematics from Université Pierre et Marie Curie and Université de Lausanne. He is the founder of the open source RinteRface organization, where he develops Shiny extensions, writes books and delivers advanced Shiny workshops. David worked in the pharma industry where he helped design production-ready Shiny apps.

HR Assistant


Giulia Hamm is an HR Assistant at cynkra and holds a vocational apprenticeship degree in business, complemented by a vocational baccalaureate. Leveraging her expertise in human resource administration, Giulia is proficient in handling a wide array of administrative tasks, both within and outside the HR department. Giulia joined cynkra on a part-time basis in June 2023.

Lead Technology


Kirill Müller has been working on the boundary between data and computer science for more than 20 years. He has been awarded five R consortium projects to improve database connectivity and improve performance in R. Kirill is a core contributor to several tidyverse packages, including dplyr and tibble. He holds a Ph.D. in Civil Engineering from ETH Zurich and is a founder and partner at cynkra.

Data Science


Layal Christine Lettry holds an M.A. in economics and a CAS in demography and population analysis. She worked as an econometrician at the Federal Social Insurance Office (FSIO) where she implemented econometric and mathematical models in R. She has been working with R since her Bachelor studies and is passionate about the R ecosystem. She joined cynkra in October 2022 as a data scientist.

Software Engineering


Maëlle Salmon is a R(esearch) Software Engineer with expertise in R package development. She created the R-hub blog and co-wrote the online book HTTP testing in R. She is an editor for software peer-review at rOpenSci. She also volunteers on R-Ladies Global team. Maëlle holds a Ph.D. in Statistics from the Ludwig Maximilian University of Munich, Germany. She joined cynkra part-time in 2022.



Matthias Bannert is an analytics and data engineering expert with more than 10 years of experience in research, web development and data processing. He enjoys facilitating the use of open source software in enterprises, education and the public sector. In 2021, he was a co-chair for the annual useR! conference. Matthias holds a Ph.D. from ETH Zurich and joined cynkra in an advisory role in early 2022.

Data Science


Nicolas Bennett is an enthusiastic statistician, data scientist and R developer. He holds an M.Sc in Interdisciplinary Sciences from ETH Zurich and has successfully defended his doctoral thesis on machine learning with intensive care data at the Seminar for Statistics of ETH Zurich in late 2021. Nicolas is an experienced teacher and a gifted R programmer. He joined cynkra in December 2021.

Data Science


Olajoke Oladipo is a data and R Shiny Enthusiast with an M.Sc. in Informatics from the University of Zurich. Throughout her studies, she actively sought opportunities to sharpen her analytical skills by participating in various data science projects. Her thesis delved into identifying clusters of similar issues from user reviews using BERT. In December 2022, Olajoke joined cynkra as a Data Scientist.

Lead Infrastructure


Patrick Schratz joined cynkra in 2020 and is leading the infrastructure team of cynkra. He completed a M.Sc. in Geoinformatics & Remote Sensing and holds a PhD in environmental modeling (2022) from the University of Jena, Germany. For several years, Patrick was among the core team of the mlr3 machine learning framework in R. His current focus is on workflow optimization, automation, and containerization.

Data Science


Tobias Schieferdecker holds a Ph.D. in Physics with focus on climate science from the Karlsruhe Institute of Technology, as well as a Diploma of Advanced Studies (DAS) in Data Science from the ZHAW. He is an expert in data cleaning, transformation, and modeling and is familiar with both R and Python. His thesis was on the mid-term development of stratospheric water vapor. He joined cynkra in 2018.



Wael Sadek is an experienced DevOps engineer and administrator. He holds a B.Sc in Computer Science and has more than 10 years of experience in managing technichal infrastructures in various professional environments. He is a certified Kubernetes Administrator, a certified AWS Solutions Architect Associate and a Redhat Certified Engineer. Wael joined cynkra at the beginning of 2021.