The 25 best Developer & Engineering conferences in 2026 and 2027

The Developer & Engineering events with the most verified substance in the Luminik catalogue: published attendance, named speaker line-ups, sponsor floors and public discussion. Ranked by what the data shows, not by opinion, and every entry links to its full event page.

  1. Agile Testing Days (AgileTD) 16 to 19 Nov 2026Potsdam, Germany 31 expected attendees9+ named speakers1+ sponsors and exhibitorsactive public discussion Software engineers or testers, QA engineers or lead, Agile Tester, Test Automation Specialist or Software Developer, Agile Coach or Scrum Master, Product Owner or Team Lead – There is something for every team member in the Agile Testing Days program.As described by the organiser
  2. Free and Open Source Software Conference 15 to 16 Aug 2026Sankt Augustin, Germany 265 expected attendees1+ named speakers12+ sponsors and exhibitorsactive public discussion
  3. All Things Open 2026 Oct 2026Raleigh, United States 1,927 expected attendees20+ named speakers9+ sponsors and exhibitorsactive public discussion
  4. Apidays Australia 2026 28 to 29 Oct 2026Melbourne, Australia 1,808 expected attendees2+ named speakers2+ sponsors and exhibitorsactive public discussion
  5. Devoxx Belgium 2026 5 to 9 Oct 2026Antwerp, Belgium 811 expected attendees13+ sponsors and exhibitorsactive public discussion Thousands of passionate developers, speakers, sponsors, and technology leaders will once again come together in Antwerp to exchange ideas, share knowledge, and help shape what comes next.As described by the organiser
  6. Rustconf Unconference 2026 11 Sept 2026Montreal, Canada 90 expected attendees8+ named speakers2+ sponsors and exhibitorsactive public discussion
  7. Infobip Shift Europe 2026 13 to 15 Sept 2026Zadar, Croatia 4,000 expected attendees20+ named speakersactive public discussion
  8. TDC São Paulo 2026 23 to 25 Sept 2026Sao Paulo, Brazil 1,694 expected attendees12+ named speakersactive public discussion
  9. Seetest Courses 5 Oct 2026Ljubljana, Slovenia 700 expected attendees1+ named speakersactive public discussion
  10. ReactJS Day Conference 19 Nov 2026Verona, Italy 268 expected attendees5+ named speakers7+ sponsors and exhibitors
  11. PyCon Estonia 8 to 9 Oct 2026Estonia 120 expected attendees1+ sponsors and exhibitorsactive public discussion
  12. DjangoCon US 2026 Sept 2026Chicago, United States 77 expected attendees20+ named speakers7+ sponsors and exhibitors
  13. dotJS 18 Sept 2026Paris, France 62 expected attendees16+ named speakers1+ sponsors and exhibitors
  14. CodeMash 12 to 15 Jan 2027Sandusky, United States 59 expected attendees1+ sponsors and exhibitorsactive public discussion
  15. Voxxed Days Ticino (VDT) 19 Feb 2027Lugano, Switzerland 28 expected attendees2+ named speakersactive public discussion
  16. School on Efficient Scientific Computing (ESC School) 11 to 22 Oct 2026Bertinoro, Italy 25 expected attendees7+ named speakers1+ sponsors and exhibitors
  17. DrupalCamp Poland 12 Sept 2026Wroclaw, Poland 16+ named speakers2+ sponsors and exhibitorsactive public discussion DrupalCamp welcomes attendees of all experience levels: developers, technical leads, project managers, business representatives, and anyone interested in IT or open-source technologies.As described by the organiser
  18. Prairie Dev Con 21 to 22 Sept 2026Winnipeg, Canada 19+ named speakers5+ sponsors and exhibitorsactive public discussion Whether you're a developer, manager, or just passionate about tech, there's something for everyone at PrDC 2026!As described by the organiser
  19. Northern Virginia Software Symposium 2026 24 to 25 Sept 2026Reston, United States 100,000 expected attendees6+ named speakersactive public discussion
  20. Nerdearla Argentina 2026 22 to 26 Sept 2026Buenos Aires, Argentina 50,000 expected attendees1+ sponsors and exhibitorsactive public discussion
  21. Testcon Europe 2026 21 to 23 Oct 2026Vilnius, Lithuania 800 expected attendees17+ named speakersactive public discussion
  22. SEETEST 2026 6 to 7 Oct 2026Ljubljana, Slovenia 700 expected attendees1+ named speakersactive public discussion
  23. PUSH UX 22 to 23 Oct 2026Munich, Germany 700 expected attendees20+ named speakers4+ sponsors and exhibitors
  24. SmashingConf Freiburg 2026 7 to 10 Sept 2026Freiburg im Breisgau, Germany 300 expected attendees12+ named speakers4+ sponsors and exhibitors
  25. JSNation New York 2026 16 Nov 2026New York, United States 218 expected attendees11+ named speakers JSNation US is a two-day, two-track event dedicated to Web development. It's your entry into one of the largest engineering communities worldwide, valuing both expertise and meaningful connections.As described by the organiser

How this list is ranked

By verified substance, not opinion: published attendance counts, named speaker line-ups, sponsor and exhibitor floors, public discussion, and an organiser-stated audience. The events the catalogue knows most about rank first, which favours the events with real gravity. An event missing from this list may not publish those numbers, and the full Developer & Engineering listing carries every one we track.