20–22 Apr3 days2k–10k
Germany's Python and applied-AI conference, moving from Darmstadt to Heidelberg.
verifiedcfp not open
Three conference days at the Heidelberg Congress Centre with masterclasses the day before and sprints and hackathons for two days after. Around 2,000 attendees and 150+ sessions, merged PyCon DE and PyData programmes, weighted towards applied AI and open source rather than research. 2027 moves the event from Darmstadt to Heidelberg and adds satellite events.
- Masterclasses and DjangoGirls on 19 April; sprints, hackathons and Beginners' Day 23-24 April
- 2,000+ attendees and 150+ sessions
- First Heidelberg edition after four years in Darmstadt and Berlin
- Call for Proposals opens November 2026
21–22 Apr2 days500–2k
Poland's data conference, now explicitly extended to AI engineering, with a free online second day.
verifiedcfp unknownHybrid
One hybrid day at the Legia Warszawa Conference Centre followed by an online-only day. Run by Evention with Xebia, descended from the Big Data Technology Warsaw Summit. The 2027 edition adds an AI-engineering strand to the existing data-platform programme, covering agentic AI, streaming, data architecture and modernisation. Speakers are largely practitioners from Allegro, mBank, PZU, Netflix and Zalando rather than vendors.
- 21 April 2027 in Warsaw as a hybrid day, 22 April 2027 online only
- Organised by Evention with Xebia; descended from Big Data Technology Warsaw Summit
- 2027 theme extends the data programme into AI-native systems and agentic AI
21–23 Apr3 days100–500
35th European Symposium on Artificial Neural Networks - single track, Bruges, and hybrid.
verifiedcfp 51dHybrid
The thirty-fifth edition of the European academic symposium on neural networks, computational intelligence and machine learning, run from UCLouvain and KU Leuven. Three days, single track, around a hundred speakers, in Bruges and online. Proceedings are indexed in Scopus. This is a peer-reviewed research venue, not an industry event: papers go through a programme committee and the paper deadline is five months before the conference.
- Single track across three full days, roughly 100 speakers
- Hybrid: in-person in Bruges and online participation both supported
- Proceedings indexed in Scopus
- Paper decisions 22 January 2027, three months before the event