Meet the people who work every day for your success in social media.


  • Jan Zając

    Jan Zając, Ph. D., CEO

    Psychologist & economist, experienced consultant & researcher, who speaks 6 languages and has cycled around 17 countries.

    More on LinkedIn

  • Dominik Batorski

    Dominik Batorski, Ph. D., Chief Scientist

    Sociologist, data scientist, senior researcher analyzing social networks since 2002, who led over 30 major research projects.

    More on LinkedIn


  • Natalia Mól

    Natalia Mól, Sales Manager

    At Sotrender I am responsible for establishing positive relationships with new customers. Privately, I am passionate about horseback riding and traveling.

  • Kamil Grubek

    Kamil Grubek, Junior Customer Success Manager

    Kamil loves talking to people, that's why he's one of our first points of contact with our clients. He's also in love with cocktail culture and regional cuisine. The US version of “The Office” encouraged him to work in the office with us, suggesting that “Michael Scott's not here, but it's also wonderful.”

HR & Administration

  • Aleksandra Frączkowska

    Aleksandra Frączkowska, Senior Finance & Rewards Specialist

    HR & payroll specialist. At Sotrender manages HR, finances and administration. Always on the go, traveled to 45 countries and learning the 6th language. Mum of the best dog in the world.

  • Magdalena Radomska

    Magdalena Radomska, Budgeting & Controlling Expert

    A sociology graduate who has devoted most of her professional life to externally funded projects. At Sotrender Magdalena is responsible for budgets and managing finances. She also loves cats and collecting cooking books.

  • Marta Mikołajczyk

    Marta Mikołajczyk, People Lead

    Marta is a psychologist that has always worked with people. She has been working as an HR consultant for SaaS companies for a few years now. She volunteers at a foundation, loves podcasts, and outdoor activities.


  • Klaudia Żyłka

    Klaudia Żyłka, Marketing Team Lead

    Huge fan of Instagram with almost 5 years of experience in marketing. Gained experience in IT and education sectors. Improving her marketing skills every day. Mother of a Jack Russell Terrier.

  • Marta Bongilaj

    Marta Bongilaj, Content Manager

    Polish philologist & content marketer developing her passion for writing from her youngest years. A real dog enthusiast and a dog behaviorist since recently. Loves to dance, paint and different forms of creation.

Customer Success

  • Magdalena Świątek

    Magdalena Świątek, Sales & CS Team Leader

    At Sotrender, Magda deals with building positive customer experience, product training and creating personalized offers. Travel, gym and interior design lover. Plant mama.

  • Arkadiusz Dominik

    Arkadiusz Dominik, Customer Success Manager

    At Sotrender I'm responsible for building lasting relationships with clients. I'm keen on tech news and tech gadgets. Big fan of FRIENDS and Sci-Fi movies.


  • Rafał Biłyj

    Rafał Biłyj, CTO

    Self-taught programmer from the age of 8, computer-freak, interested in everything that is related to computers. In his free time, charity volunteer, video game maniac and parrot enthusiast, has two cockatiels at home.

  • John Bailey

    John Bailey, Head of Product

    Passionate about building great products with over 20 years of experience in software development. At Sotrender John is responsible for product management. In his spare time he enjoys hiking and relaxed mountain biking.

  • Ewa Walczak

    Ewa Walczak, Software Engineer Team Lead

    Ewa is a software engineer passionate about the frontend. She specializes in JavaScript, but she's also familiar with PHP. In her free time, she's keen on fencing, sewing, LARPing and playing RPG games.

  • Jarosław Nowicki

    Jarosław Nowicki, Senior Software Engineer

    Developer for many years, with passion and education. In Sotrender, he takes care of developers and is responsible for services from the code side. After hours, physically active incl. running.

  • Martyna Piątkowska

    Martyna Piątkowska, Senior Product Designer

    User Experience Designer appreciating minimalism and good microcopy in digital products. In her free time, she goes salsa dancing and organizes long trips with her dog.

  • Iva Djukic

    Iva Djukic, Product Analyst

    She describes trends and user activity to help the company improve their products and make decisions. Can be found reading and watching Netflix in her spare time.

  • Magdalena Borawska

    Magdalena Borawska, Software Engineer

    Python developer. Former IoT engineer. Nowadays, cloud engineer at Sotrender. After hours: rock climber and a homegrown tailor.

  • Kamil Romaszko

    Kamil Romaszko, Senior Software Engineer

    In addition to being a developer, he also works as a Scrum Master. At Sotrender, he works with cloud computing solutions on a daily basis (and is a big fan of those).

  • Małgorzata Pisula

    Małgorzata Pisula, Junior Software Engineer

    Gosia is a python developer. She likes clean code and writing automated tests. Previously, she worked in FinTech and Parking Management Systems industries. She's a big fan of biking, audiobooks and sauna.

  • Karol Karczewski, Software Engineer

    Programmer and a fan of JavaScript. Likes bad movies, motorcycles and swimming.

  • Mateusz Razumnik, Software Engineer

    Engineer. Besides building reliable Big Data solutions, he is working on his PHD thesis in image analysis utilising UAV. After hours he is a scuba diver.

  • Wojciech Żurakowski, Senior System Administrator

    Wojtek is a network and systems administrator. At Sotrender he takes care of our infrastructure and makes sure it always works properly. He basically knows everything about networks and hardware. In his free time he loves going on good trips to the mountains.

AI & Data Science

  • Aleksander Winciorek

    Aleksander Winciorek, Insights Lead

    Researcher, strategist and lecturer with over 20 years of experience. He’s especially interested in analysing the effectiveness of advertising campaigns and gathering data to help create marketing strategies. At Sotrender he’s involved in the development of new analytical products combining traditional techniques with AI and ML-based solutions.

  • Maciej Pieńkosz

    Maciej Pieńkosz, AI Tech Leader

    In Sotrender he is responsible for building and deploying machine learning models. Over 5 years of professional experience. A boxing and ice hockey fan.

  • Michał Broniś

    Michał Broniś, Senior Machine Learning Engineer

    Data Scientist with many years of experience in various industries (insurance, finance, e-commerce). At Sotrender, Michał is involved in the development, implementation and maintenance of ML models. Privately, he enjoys learning and cycling.

  • Maciej Baranowski

    Maciej Baranowski, Data Analyst

    Data Analyst, analyzing social media for many years. He's responsible for exploration and analyzing data in Sotrender. In his free time, he runs. A lot. Given the chance, he'd run even more

  • Marcin Rybiński

    Marcin Rybiński, Machine Learning Engineer

    In Sotrender, he's responsible for building and maintaining machine learning models. Data Science is his passion and his main area of interests are NLP and MLOps. Privately, he dances salsa, trains at the gym and invests in the stock markets.

  • Norbert Ryciak

    Norbert Ryciak, Machine Learning Engineer

    Machine learning engineer with a working experience that combines science and business. Norbert loves to share his knowledge and is interested in alternative forms of education.

  • Robert Woźniak

    Robert Woźniak, Data Analyst

    Data analyst with a few years of experience in the research industry. At Sotrender, he takes care of reports and analysis. He loves football.

  • Magdalena Rudź

    Magdalena Rudź, Junior Data Analyst

    At Sotrender, she is responsible for delivering analytical projects and reports as well as data visualisation. Privately, a fan of football, board games and traveling.

  • Kamila Stachura

    Kamila Stachura, Data Analyst

    Kamila graduated from Warsaw School of Economics. She's most interested in text mining and data visualisation. In her free time, she travels and plays board games.