I’ve been working with computers and writing code for over 20 years. I’m a scientist turned software developer with a strong emphasis on Python and Django. I’ve built experience across PHP, C, Fortran, and physics simulations. I hold a PhD in astronomy and astrophysics, and I’m passionate about turning scientific insight into practical software. These days I focus on applying my knowledge to real-world problems in the tech industry. I’m quick to learn new tools and frameworks, and I’ve spent nearly a decade in ML, with scikit-learn and PyTorch, training models on GPUs. In the last few years I’ve worked with Kubernetes and Docker on AWS and Azure to build cloud-native, high-performance systems. I’ve lived in the US and Germany and am fluent in English, with conversational German and Spanish.

Gergely Csépány

I’ve been working with computers and writing code for over 20 years. I’m a scientist turned software developer with a strong emphasis on Python and Django. I’ve built experience across PHP, C, Fortran, and physics simulations. I hold a PhD in astronomy and astrophysics, and I’m passionate about turning scientific insight into practical software. These days I focus on applying my knowledge to real-world problems in the tech industry. I’m quick to learn new tools and frameworks, and I’ve spent nearly a decade in ML, with scikit-learn and PyTorch, training models on GPUs. In the last few years I’ve worked with Kubernetes and Docker on AWS and Azure to build cloud-native, high-performance systems. I’ve lived in the US and Germany and am fluent in English, with conversational German and Spanish.

Available to hire

I’ve been working with computers and writing code for over 20 years. I’m a scientist turned software developer with a strong emphasis on Python and Django. I’ve built experience across PHP, C, Fortran, and physics simulations. I hold a PhD in astronomy and astrophysics, and I’m passionate about turning scientific insight into practical software.

These days I focus on applying my knowledge to real-world problems in the tech industry. I’m quick to learn new tools and frameworks, and I’ve spent nearly a decade in ML, with scikit-learn and PyTorch, training models on GPUs. In the last few years I’ve worked with Kubernetes and Docker on AWS and Azure to build cloud-native, high-performance systems. I’ve lived in the US and Germany and am fluent in English, with conversational German and Spanish.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate

Language

Hungarian
Fluent
English
Fluent
German
Intermediate
Spanish; Castilian
Intermediate
Latin
Beginner

Work Experience

Release Engineer at MSCI Inc.
January 1, 2024 - November 19, 2025
Contributes to regular data releases for MSCI Climate Research Center, processing large volumes of records to generate final results. Works daily with Python, Django, Kubernetes, and Databricks on Azure; coordinates inter-team communications to align stakeholders.
Data Engineer at Datraction
January 1, 2024 - January 1, 2024
Supports data analytics and backend job pipelines as part of the expert team, applying Python to streamline data processing tasks.
Citi Knime Developer at Citi
December 1, 2023 - December 1, 2023
Develops financial reporting tools using the Knime Analytics Platform; collaborates with teams to deliver BI solutions.
Lead Developer at Proofminder
September 1, 2022 - September 1, 2022
Led backend foundations for Proofminder: data processing steps, queuing, and REST API backend; resolved AWS-Kubernetes integration issues; integrated GIS technologies; built PoC for large-scale data processing from agricultural partners; gained experience training and deploying PyTorch ML models on CPU and GPU.
Self-employed Python Developer at Self-employed
September 1, 2022 - September 1, 2022
Freelance Python/Django developer building websites (e.g., company registry, book publisher site) and providing IT consultancy to multiple clients.
Python Developer at Gitential
May 1, 2020 - May 1, 2020
Senior Python Developer at Gitential; contributed to backend components, gained deep familiarity with Git internals, and piloted Docker and Terraform—honing DevOps practices.
PhD Student at Konkoly Observatory of the Hungarian Academy of Sciences
July 1, 2018 - July 1, 2018
PhD student researching young multiple stellar systems; built a 100 TB storage solution for the Fly’s Eye Camera System and developed a meteor camera network; applied simulation and model-fitting tools (including Scikit-Learn) to train and fit stellar models.
PhD Student at European Southern Observatory
October 1, 2015 - October 1, 2015
PhD research focusing on multiplicity in young T Tauri systems and its influence on protoplanetary disks; developed a custom astronomical data-processing framework; began applying ML with Scikit-Learn to fit stellar models.
Latex Editor at Typotex Kiadó
August 1, 2015 - August 1, 2015
LaTeX editor producing press-ready materials and preparing Word documents for electronic publishing.
Research Assistant at Konkoly Observatory
February 1, 2014 - February 1, 2014
Research assistant for Fly’s Eye Camera System; contributed to embedded systems development and backend data processing (C/C++/Python) for remote management and sensing.
Freelance Web Developer at Freelance
December 1, 2013 - December 1, 2013
Freelance full-stack web developer building sites with PHP/Symfony and later Python/Django; provided IT consulting.
Researcher at EFDA ITM-TF
March 1, 2012 - March 1, 2012
Participated in Code Camps across Europe and integrated a plasma physics simulation code into the ITM framework.
Visiting Student at Chalmers University of Technology
September 1, 2011 - September 1, 2011
Carried out runaway electron research as an internship.
Teaching Assistant at Budapest University of Technology and Economics
June 1, 2010 - June 1, 2010
Teaching assistant; conducted geophysical probe research and improved computer systems by integrating parallel applications.

Education

PhD, Astronomy and Astrophysics at Eötvös Loránd University
January 1, 2013 - January 1, 2016
Master’s degree, Physics at Budapest University of Technology and Economics
January 1, 2010 - January 1, 2012
Bachelor’s degree, Physics at Budapest University of Technology and Economics
January 1, 2006 - January 1, 2010

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Education, Media & Entertainment, Financial Services