JDD is being organized by PROIDEA Foundation. PROIDEA is an independent, non-profit organization started in 2004. It was established as an answer to the growing demand for organizations that share the knowledge and experience in the field of IT. It fulfills its statutory obligations by organizing professional, high-quality trainings as well as Polish and international technical IT conferences. PROIDEA Foundation is the organizer of:

4developers is a professional, technical conference for developers, project managers and all students interested in programming. It is a place to introduce latest developments, share ideas and find solutions for most common issues concerning writing, testing, debugging and maintaining the code. 4Developers is divided into 4 independent tracks Java, PHP, Scalability & Performance, IT Project Management.

PLNOG is an independent meeting of about 500 network engineers working for top Polish companies (network operators, cable TV suppliers, web services, content providers, vendors etc.). PLNOG is organized twice a year: in Spring in Warsaw and in Autumn in Krakow.

CONFidence is an international, technical IT security conference. Great speakers, current topic, technical trainings and 0days has always been a core of CONFidence. International IT security community meets at CONFidence every May in Krakow and every November in one of the European capitals.

e-nnovation is an international e-commerce conference for 500 attendees organized with the Allegro Group every Autumn in Poznan.

IT Trainings PROIDEA has a status of Cisco Academy and organizes trainings such as Cisco Certified Network Associate (CCNA), Cisco Certified Network Professional (CCNP), Network Security (NS). PROIDEA Foundation’s activities also include organizing high quality IT trainings tailor made to meet the specific needs of every company.

To find out more visit our web site

  • jdd


Gold Sponsors:

  • e-point
  • j-labs

Silver Sponsors:

  • Lumesse
  • Luxoft
  • SII


  • Redhat
  • WITS

Sponsor JDD Afterparty:

  • WITS

Media Partners:

  • helion
  • Polish JUG
  • Poznan JUG
  • SDJ