About Us

Reaching globally from Poland (the heart of Europe)

Based in the heart of Europe, we're a team of passionate software professionals who believe in delivering exceptional quality at every step. We've honed our skills through diverse projects in Finance, Insurance, Healthcare, E-commerce, Cryptocurrencies, and Data Industry. But our expertise isn't limited by industry - we thrive on new challenges.

More than just developers, we're your tech partners. We believe in building trust through open communication and a can-do attitude. We don't just write code, we recommend the right technologies, navigate complexities, and become an extension of your team.

Let's turn your ambitious vision into reality. We're dedicated to transforming opportunities into your success stories. Contact us today and discover how our expertise can empower your business.

Our experience involves software solutions in:






Data Industry


About our Founder

Jacek Aleksander (pronounced 'Yatzek Alexander') graduated from the University of Gdansk in 2009 with a Master in Computer Science. A member of the Quantum Information group at the Institute of Theoretical Physics and Astrophysics, he wrote his Masters dissertation under the supervision of Professor Marek Żukowski, the 2013 winner of the Foundation for Polish Science Prize. Jacek investigated topics in Bell nonlocality and defended a thesis entitled "Nonclassical Properties of Multiqubit States Applicable in Quantum Information Science." This work required lots of Scientific Computing and it is then that Jacek took his first steps as a Computational Scientist.

Following this experience, Jacek joined Kainos, an Irish software company, and then a Belarusian-American software services company called EPAM Systems. These were his core experiences in Software Development, where he took on numerous roles as a Software Engineer, Senior Software Engineer, Business Analyst, Scrum Master and Technical Support in Presales. His experience also involved short stints at Morgan Stanley, Citigroup and Bloomberg in London, where he worked for Infrastructure Departments on Financial Software.

Jacek founded Jagan Solutions in 2016. The company has since developed into an independent unit delivering solutions in AI, Machine Learning, Data Science and Analytics as well as Scientific Computing and Optimization. Jacek has recruited the best of the best in their trade, which typically revolves around Machine Learning, and makes sure that all projects are delivered up to the highest quality standards. It is his ambition to create a rewarding workplace for Jagan's employees, to provide innovative and reliable services for its clients, and to maintain a steady course on the state-of-the-art science applications in business.

Having worked on scientific problems in the Quantum Information department at University of Gdansk since graduating in 2009, Jacek returned to his alma mater to pursue a PhD in 2017. In September 2019, he successfully defended his dissertation, entitled "Solving Two-Level Optimization Problems Related to Bell's Theorem." He subsequently completed a postdoc at the University of Gdansk, also in the quantum space. Finally, on a year-long stay in the US from 2022 to 2023, he completed the Fulbright Senior Scholarship at Columbia University in the City of New York. His work embraced Computational Mathematics and Bell inequalities.

Scientific Computing

Meet the team

Jacek Aleksander Gruca, PhD


As a Manager, Leader and the Founder of Jagan, he specializes in Scientific Computing, Optimization, and Machine Learning. With 10+ years of Software Engineering experience, he is the man behind the kick-off of every project. Based in Gdynia.

Tomasz Kacmajor


A versatile Technical Manager overseeing all of our projects. Enthusiastic about technology trends. At his best when working on AI interdisciplinary endeavors, he ensures all projects meet the highest quality criteria. Based in Gdansk.

Piotr Cholewa

Senior Software Engineer

A versatile Software Developer with lots of Web Development experience. He is a talented young software developer known for working efficiently and up to standard. Based in Wroclaw.

Robert Podymski

Business Analyst

An Analyst with a breadth of experience in Documenting Specs, Team Leading and Project Management. To quote one of his referrals: "precise perfectionist, works towards maximal customer satisfaction." Based in Wroclaw.

Grzegorz Rucki

Senior Machine Learning Engineer

With 7 years of experience in Software Development, with a focus on Artificial Intelligence, Grzegorz is a highly qualified Machine Learning Engineer. He holds a masters in Applied Computer Science. His practical approach to problem-solving and dedication to excellence ensure successful deliveries. Based in Cracow.

Grzegorz Kania

Senior Machine Learning Engineer

A talented Mathematician experienced in Corporate Data Analysis and Process Improvement. Specializes in Data Science, Machine Learning, Deep Learning and Algorithm Optimization. Always strives for the optimal solution and doesn't accept "good enough." Based in Gdynia.

Kornel Witkowski

Machine Learning Engineer

A generalist Software Developer holding degrees in Electronics and Theoretical Physics. Dedicated to seeking optimal solutions and passionate about AI, particularly NLP, CV, and Reinforcement Learning. Based in Wroclaw.