PyCon Sweden 2025

Anna works at the intersection of AI and quantum computing at IBM, helping developers and organizations understand both the opportunities and risks of these new fields. With a background in data science, entrepreneurship, and technology strategy, Anna focuses on making quantum computing accessible through Qiskit and open-source tools. Anna served as a judge for the Nordic Women in Tech Awards 2025, and regularly speaks on how future technologies can create real-world impact.
Anna is an AI Technical Specialist, Quantum Ambassador, and Qiskit Advocate at IBM.

Aris Nivorlis is a researcher geophysicist and data steward at Deltares, where he uses data and tooling to answer complex questions about the subsurface.

He is passionate about promoting good practices in data management and scientific coding, helping teams build sustainable and reproducible workflows.

Outside of work, Aris is actively involved in the European Python community, contributing to the organization and support of conferences and community initiatives.

When he's not at his computer, you’ll likely find him dancing salsa.

Ava Katushka is a software engineer and artist who blends creativity with code. By day, she builds backend systems and tinkers with frontend projects at Bloomberg; by night, she creates watercolor art, postcards, and quirky illustrations. Ava’s unique note-taking style combines doodles, symbols, and words to make conference learning stick — and she’s on a mission to help others turn their notes into visual stories worth remembering. You can see some of her art notes on Europython here.

Christian Heitzmann, MSc ETH CSE, is the founder and owner of SimplexaCode AG, based in Lucerne, Switzerland. He is a certified software developer in Java and Python, holding teaching diplomas in both Computer Science and Mathematics, as well as a CAS in Machine Learning. With over 20 years of experience in software development and 12 years of teaching Java, Python, mathematics, and algorithms, Christian is also a regular contributor to IT journals, sharing his expertise in the field.

My name is Eleni Tokmaktsi, I hold a master’s degree in applied geophysics and currently work as a geospatial data engineer in kartECO company.

Over the years, I’ve worked with data in many forms—from collection to processing and analysis—using tools such as Python and MATLAB. I’ve tackled a range of challenges, from remote sensing to subsurface imaging, and what drives me most is understanding the problem that needs to be solved.

For the past two years, my focus has been on geospatial data, building custom GIS tools and automating workflows to support decision-making.

Lead Data Engineer with 7 years of experience working in the data universe.

Florents (Flo) Tselai is a data generalist and open-source developer with deep expertise in database internals and extension development. He is a core PostgreSQL contributor and the author of multiple database extensions. His work spans AI, data management, web scraping, and civic tech. He is also the creator of diofanti.org, a public platform for tracking government spending in Greece.
github.com/Florents-Tselai

Software Engineer

Irene Donato is Lead Data Scientist at Agile Lab, working on the development and application of machine learning models. With an academic background that includes postdoctoral research at the University of Alberta and Aix-Marseille Université, she transitioned to industry, where she has led data science projects and teams.

Irene enjoys bridging the gap between deep research and practical application. She is passionate about making complex topics accessible to the developer community.

Iulia Feroli is a Senior Developer Advocate at Elastic, where she helps developers and data scientists unlock the power of search, machine learning, and generative AI. With a background spanning cloud architecture at Microsoft and AI/ML solutions at Dataiku, she brings a unique perspective on bridging technical depth with accessibility. At Elastic, she focuses on sharing practical insights through talks, demos, and videos. Passionate about making AI approachable, Iulia speaks worldwide on how to turn complex concepts into tools developers can use every day.

AI ML Nerd with a blend of technical speaking & hackathon wizardry! Applying tech to solve real-world problems. The work focus these days is on generative AI. Helping software teams incorporate AI into transforming software engineering.

Jan Bjørge (JeyBee) is a Norwegian software engineer with a master’s degree in Cybernetics (University of Stavanger, 2015) and a decade of Python experience. He began as a field telecoms engineer before moving into software, eventually becoming Tech Lead at conversational-AI firm boost.ai.

After a short period as Principal Analyst at Equinor, delivering data-intensive tooling for subsurface modelling, Jan joined Pio in 2024 as Senior Software Engineer. At Pio he works on the backend that powers the company’s automated storage-and-retrieval warehouse platform, exposing APIs that connect e-commerce stores, shipping providers and ERP systems to AutoStore robotics.

Outside work he maintains pgqueuer—a PostgreSQL-native task queue and scheduler created on his own time.

Jim Dowling is CEO and co-founder of Hopsworks. Previously, he worked at MySQL, as an Associate Professor at KTH, and as a senior researcher at RISE. He is the organizer of the annual feature store summit and he has authored a book for O'Reilly on Building ML Systems with a Feature Store.

Dr. Jodie Burchell is the Developer Advocate in Data Science at JetBrains, and was previously a Lead Data Scientist at Verve Group Europe. She completed a PhD in clinical psychology and a postdoc in biostatistics, before leaving academia for a data science career. She has worked for 9 years as a data scientist in both Australia and Germany, developing a range of products including recommendation systems, analysis platforms, search engine improvements and audience profiling. She has held a broad range of responsibilities in her career, doing everything from data analytics to maintaining machine learning solutions in production.

Johanna Öjeling is a Senior Software Engineer at Grafana Labs and an OpenTelemetry member with experience spanning backend, data, and platform engineering. She specializes in distributed, data-intensive systems and is committed to developer experience and open source.

I have been working as a backend developer for 4 years, primarily using Python and Django to build web applications and APIs. I enjoy sharing my knowledge by writing articles on Medium and other platforms, focusing on Python. Passionate about clean code and continuous learning, I aim to help the community by delivering clear and practical talks.

Lovisa Johansson is an expert in message queuing and distributed systems, known for her pedagogical approach to teaching complex topics. With extensive experience in open-source message brokers like RabbitMQ and LavinMQ, she focuses on making message-driven systems accessible to learners of all levels.Passionate about hands-on learning, Lovisa uses real-world examples to break down intricate concepts into simple, actionable insights. Her goal is to empower others to master message queuing and build scalable, reliable systems, regardless of their technical background.

Lysandros works as a Senior Software Engineer at Quansight Labs, where he spends most of his time on CPython and the PyData ecosystem. He is a CPython core developer, specializing in the parser, the tokenizer and the REPL. He recently worked on supercharging f-strings in Python 3.12, the new REPL for Python 3.13 and introducing fast string ufuncs in NumPy 2.0. Currently, he's mostly dealing with improving support for free-threaded Python in the PyData ecosystem.

Nikita Churikov is a Python developer at SciLifeLab in Stockholm with a background in applied mathematics and experience in machine learning projects. He is particularly passionate about deploying models and building reliable data pipelines. Currently, he works on a scientific hosting platform for life science researchers and contributes to PyCon Sweden as part of the organizing team. His interests include clean architecture and sustainable engineering practices that scale from hobby projects to production systems.

Dr. Nikolaos Chatzis is a graduate Geologist and holds a Master’s Degree in Applied Geophysics and Seismology from the School of Geology at Aristotle University of Thessaloniki (A.U.Th.). In March 2024, he was awarded a PhD by the Department of Geology at A.U.Th. His research interests focus on various geophysical and seismological topics. He has participated in numerous fieldwork projects and he has extensive experience in the use and installation of modern digital recording instruments and on the signal processing using various programming languages.

I'm Özge, a curious soul with a computer engineering degree and a heart full of ideas. I'm currently shaping the future as an AI Research Engineer at Huawei. I work in AI research, but I’m just as passionate about blending creativity with code. Whether it’s turning emotions into visuals, building fictional chatbots, or crafting data stories, I love making tech feel personal. I write, build, explore, and sometimes get beautifully lost in too many ideas, but always with Python by my side.

Sebastiaan is a Python enthusiast who enjoys thinking about good software design and engineering. He is a fellow of the EuroPython Society and the Python Software Foundation, works for the Sopra Steria Pythoneers, and frequently speaks at conferences around the world.

Shivay Lamba is a software developer specializing in DevOps, Machine Learning and Full Stack Development.

He is an Open Source Enthusiast and has been part of various programs like Google Code In and Google Summer of Code as a Mentor and has also been a MLH Fellow.
He is actively involved in community work as well. He is a TensorflowJS SIG member, Mentor in OpenMined and CNCF Service Mesh Community, SODA Foundation and has given talks at various conferences like Github Satellite, Voice Global, Fossasia Tech Summit, TensorflowJS Show & Tell.

Hi, I’m Sneha Mavuri, a software engineer and QA specialist with 3 years of experience. I’m currently working at Swiggy, where I focus on ensuring product quality across web, mobile, and backend systems. I work hands-on with tools like Playwright, Appium, WebdriverIO, and Postman to catch bugs early and ensure a smooth experience for users.

Before Swiggy, I worked at CloudDefense.AI, Morgan Stanley, and Wingify, gaining experience across cloud security, backend development, and product testing. This journey has shaped my understanding of how to build products that are not just functional, but reliable and user-focused.

Outside of work, I’m a content creator with a community of over 22,000 followers on LinkedIn, where I share tech insights, career tips, and explain complex tools in simple ways. I enjoy helping others grow and stay curious about how we can use tech in meaningful ways.

Now, I’m channeling all my energy into building something of my own bringing together my skills in engineering, testing, and communication to create products that are smart, useful, and accessible.

Theresa Seyram Agbenyegah is a backend developer, Open-Source advocate/contributor, Social Entrepreneur, PSF and DSF member. She leads PyLadies Ghana Programs and Events, Black Python Devs Ghana Organizer, and co-organized and Co-facilitate PyCon Ghana 2022 DjangoGirls. PyCon Africa 2024 LOC Programmes Lead and DjangoGirls PyCon Africa 2024 Organizer, she champions education and community growth.

Victor is a Swedish System Architect at fintech MAJORITY by day, Python coder by night. 18 years ago, he wrote the first line of code for Pymunk, which has since become what he believes is the best library to use whenever you need to simulate 2D physics in Python.