DEV: Challenge Accepted 2025: The Elevation

An international technical software development conference

About The Event

DEV: Challenge Accepted is a full-day single-track conference for software developers of all levels. The conference focuses on the latest trends and technologies in the industry, providing attendees with the opportunity to learn from experienced professionals and network with their peers. Frontend, backend, full stack, QA, DevOps, Managers - it's a great opportunity for everyone to stay up-to-date with the latest developments in their field and gain valuable insights from industry leaders. For our fourth edition, we would like to welcome you on September 28, 2025, at the John Atanasoff Forum in Sofia, Bulgaria. With a focus on providing valuable content and fostering a sense of community among attendees, DEV: Challenge Accepted - The Elevation is an event not to be missed for any software developer.


Where

John Atanasoff Forum
Sofia Tech Park
Sofia, Bulgaria


When

September 28th 2025
Sunday
Day 271 of Year 2025

What is it like? Check it out:

Currently available: Super early bug tickets (only 100!)

DEV: Challenge Accepted Full Ticket
129 BGN
(~67 EUR)
DEV: Challenge Accepted only
onsite ticket

Combined tickets for both QA: Challenge Accepted and DEV: Challenge Accepted
199 BGN
(~103 EUR)
Combined ticket for
DEV: Challenge Accepted and QA: Challenge Accepted



By buying a ticket, you get:

  • Full onsite and online access to the conference.
  • Unlimited networking opportunities to connect with like-minded tech enthusiasts
  • Unlimited coffee to keep your energy high throughout the day
  • A tasty lunch to fuel your learning and networking sessions
  • Access to sponsor booths, offering insights into cutting-edge tech solutions
  • An opportunity to interact directly with speakers in the Speakers Corner
  • Chance to win exciting prizes from sponsor raffles
  • All the fun of meeting old buddies and making new friends in the tech community
  • ... and many more!

Haven't decided yet?

Register for news and get online access to the conference absolutely free of charge.

Not sure about coming over?

Come on - the combined cost of your flights, accommodation, and a full-access conference ticket here is often less than just a basic entry pass at some other events. Thanks to our sponsors, it is not only a budget-friendly event, but you also get the complete experience - comprehensive learning, extensive networking, and the chance to explore the vibrant culture of a charming EU country - Bulgaria . Reach us if you need any help for visas, travel, and accommodation - we will be happy to help.

Event Schedule

Call for papers is still open!

The agenda will be announced on 15 June 2025.

If you want to speak from our stage, apply as a speaker before 15 May 2025.

Roadmap

Here is the an approximate roadmap of important conference dates. Please note that some of these dates may change:


1 Jan
Event officially announced on the website

Call for speakers and sponsors opened.
Tickets on sale.

15 May
Call for speakers closed.


Nominations for Dev of the Year opened.
Early bug tickets sale ends.
Standard tickets on sale.

15 Jun
Agenda announced

 

15 Aug
Call for sponsor ends

Nominations closed.

1 Sep
Standard ticket sale ends

Last minute tickets are on sale.
Voting for nominees starts.

20 Sep
Tickets sale ends

Last chance to buy a ticket.


Another great conference organized by us.

28 Sep
DEV: Challenge Accepted 2025


The conference day.



Sponsors & Partners

Interested in sponsoring the event, or any other kind of partnership?

Write to us at  or call +359887675786 for more information.

Hosts:


Gold Sponsors:

Bronze Sponsors: