An international conference for
software testing and quality assurance

10th September 2022, Sofia Tech Park, Sofia, Bulgaria

About The Event

QA: Challenge Accepted is a conference targeted towards enthusiasts, specialists and managers participating in software testing and software quality assurance. The event is initiated by the QA community in Bulgaria - for professionals from professionals. The 8th conference edition will take place in Sofia Tech Park, as well as online.


John Atanasoff Forum
Sofia Tech Park
Sofia, Bulgaria


September 10th 2022
Day 253 of Year 2022

The event is over.

QA: Challenge Accepted 2023 will be held on October 1st in Sofia Tech Park.
Tickets sale and call for papers coming in the beginning of 2023.

Event Schedule


We know it's Saturday morning. So, come get your badge and wake up with a cup of coffee. It's going to be a great day!

Hello, bugs!

An official opening of the conference.

So, you think you do quality assurance?

by Martin Chaov - Architecture Senior Manager @ Draftkings Inc.

Who is responsible for quality assurance or who executes the quality assurance function in the team? Are they doing quality assurance or quality control? Let's start the day with Martin, his software development experience, and where the bugs can hurt the most. Martin will point out the essence of QA and what kind of development process you need to deliver with minimum defects.

Martin Chaov

Martin has been working in the IT industry since 2006 and started sharing his experience on different topics at IT events in 2013. He has built several teams from scratch, and as a software architect and designer, he has won multiple awards for the best and most innovative products in the industry. Martin loves talking about architecture, principles for developing good software, CI/CD, effective teams, software design, performance, testing and quality of software systems, and many others.

Coffee break

Did you know that the world’s first webcam was created in the early ’90s. Its sole purpose? To check if the coffee pot was full. Scientists at Cambridge University got tired of walking all the way to the coffee pot only to find it empty, so they set up a camera to track it.

Benefits of contract testing

by Dusanka Lecic - Test Lead / Department Manager @ Levi9 IT Services

Probably some of you hardly know anything about contract testing. It is not typical for most of our projects. Dusanka will tell us what it is, share her experience with contract testing, discuss its advantages and disadvantages, and show us real-life examples of contract testing and the differences between integration and contract testing.

Dusanka Lecic

Dusanka Lecic, Ph. D., is a highly motivated Test Lead. She was involved in many projects with different technologies for more than six years of experience in the Levi9 company. Her academic career is seventeen years long, and she published many scientific papers during this period and was a speaker at many conferences.

Top 10 Misconceptions in Performance Testing

by Nikolay Avramov - Automation Lead @ Automate The Planet

Performance Testing has become one of the hottest topics nowadays, where everything we do, everything we test, and everything we develop requires the speed of lightning and the endurance of an elephant. Nikolay will tell us about his challenges with the company’s software products being compared daily with the biggest players in terms of speed, reliability, and user experience.

Nikolay Avramov

Nikolay Avramov has 10+ years of experience as a Quality Assurance Engineer. He started his career in the field from ground zero - from taking part in the Telerik Academy to becoming a Principal QA Engineer, Trainer, and Consultant at the heart of any innovation or automation initiative. He found his true passion in Test Automation while looking for a ‘weapon’ to fight the tedious, non-productive daily tasks that a QA faces. By reducing the repeatable manual jobs, he believes that we can make the world a better place, full of happy and productive people ready to tackle the next challenging task instead of the next pile of test scenarios to cover by hand.

Coffee break

Did you know that according to several scientific studies, the color, shape and even the texture of our cup makes a difference in the way we taste coffee. For instance, drinking dark coffee from a white cup creates a strong contrast, making us think our coffee is stronger. Conversely, when we drink from a clear cup, many of us perceive the coffee to be lighter and sweeter.

Why my Selenium Tests are Flaky

by Dimitar Topuzov - Senior Principal QA Engineer @ Progress

Flakiness is evil! It not only hurts your productivity but also causes a loss of trust among developers and testers. Dimitar will revile some of the most common reasons for flaky Selenium (and not only Selenium) tests and give tips on preventing flaky tests from appearing.

Dimitar Topuzov

Dimitar has 15+ years of experience in quality engineering, with a strong focus on testing web, mobile, desktop, and backend systems. Passionate about building effective test automation and CI/CD processes, he has worked in companies with 20 to 2000 employees on many projects and has encountered software testing in all forms. A big fan of the Rhodopes and the Audi cars.

Continuous Testing at Scale

by Alexander Velinov - Head of Testing @ Endava

Alexander will share a potential testing approach and scalable automation frameworks and infrastructure that serve most modern micro-services and micro-frontend architectures. He will cover the must-have performance and security testing automation tests that should be part of our delivery process.

Alexander Velinov

Alexander is passionate about software development and delivery and every single aspect related to how we build, deliver, support, and continuously improve any software and embedded solutions. Alexander has 20+ years of experience in software development and engineering web, mobile, embedded, and desktop solutions. Last ten years in leadership roles. Currently, he is leading the testing discipline of Endava in Bulgaria. He believes in the people and the technologies and that our IT community depends on every single IT professional to be the best they can be and to continue growing together with the brightest engineers.

Lunch sponsored by

"We should look for someone to eat and drink with before looking for something to eat and drink."
~ Epicurus

How to manage the challenges of testing modern and complex driving assistants

by Achim Noller - Department Head @ Robert Bosch Gmbh

Achim will give us an insight into how modern driving assistants in the car will make the life of a driver easier and what is needed from a safety perspective to deliver excellent quality to all parties. A passion for cars is required, but what more? Join the session to find out!

Achim Noller

Achim is one of the leading managers in Bosch in the sphere of ADAS testing. He is more than 20 years in the Automotive area and has vast experience in testing and developing safety braking systems, and ADAS systems, especially on central computing units. He has international experience setting Bosch office in Eastern Asia. Achim also supported the Board of Management as a Senior Expert on engineering topics. Currently, he is leading the Center of competence for ADAS testing on each level. Achim is passionate about sports such as biking, climbing, and skiing. He works very closely with Bosch Engineering Center Sofia and would like to share the latest trends in testing modern vehicles.

Coffee break

Did you know that the largest cup of coffee ever filled is a 2.75 meter (9-foot) tall cup? The 15852-liters (3487-gallon) serving earned a Guiness World Record in 2012.

Switchboard: QAOps swiss knife

by Dmitry Gorbunov - Deputy Head of QA @ Devexperts

Large-scale and complex projects tend to have a diverse and ever-growing test base. As products cruise along the delivery waves, several challenges appear - risk-based testing approach, multi-criterion execution batching, or test base synchronization, to name a few. To overcome such challenges, one might have to fine-tune the execution scope. That's why Dmitry will tell us about Switchboard - a QAOps tool designed to help test leads and engineers manage tests and executions effectively.

Dmitry Gorbunov

Dmitry works for Devexperts as Deputy Head of QA and QA Automation Lead. During his 12+ years in QA and 8+ years in a leadership role, he has mainly focused on FinTech projects for big American brokers. Dmitry has shared his experience in several speeches at conferences and meetups. In his spare time, he writes electronic music.

Boost your automation analysis

by Nikolay Stanoev and Momchil Krastev - Members of the QA team @ Merkle

Automation analysis is an important activity in the daily routines of every QA Engineer. During the session, you will learn why automation analysis is essential and how to do it efficiently with the help of AI. The session will also include some personal feedback about the good and bad things about the tool and how its usage changes the analysis in Merkle.

Nikolay Stanoev

Nikolay is QA Architect at Merkle, having more than 12 years of experience in the IT sector. For the last eight years, he has been responsible for building automation frameworks from scratch, supporting the needs and the high demand of the eCommerce sector. His current project is the sports giant – Adidas, where Nicky implemented an automation framework, helping to achieve daily release goals. In addition to his project responsibilities, he devotes time to expanding the company's test automation knowledge, believing automation skills are for each person who wants to acquire them.

Momchil Krastev

With 5+ years of QA experience, Momchil has gained more and more traction in the field. For the past three years in the Clarins project, he's been digging more profound into the automation and security testing processes. With the experience, domain knowledge, and passion for teaching, Momchil participates actively in mentoring and onboarding newcomers and leading knowledge transfer sessions.

Beer break

Did you know that the strongest beer in the world has a strength of 67.5% alcohol by volume. This beer was created in 2017 by the Scottish brewery Brewmeister. The beer is called Snake Venom.

Be all ears! Active listening recipe

by Natalia Romańska - QA Engineer @ Brainly

Even though the importance of soft skills has started to be highlighted (and still is), one of the main reasons for conflicts and misunderstandings is the lack of communication. Developing soft skills in parallel with hard ones is crucial for growing up as a good specialist - no matter whether you are a Product Owner, Developer, QA, or someone from the non-IT industry. The sooner you will be training yourself there, the better! Which is pretty damnably hard. At the same time, soft skills - related topics are pretty often skipped or treated as something "obvious" - not worth studying or practicing! Which is tricky. So why don't we start once again from the basics? Let's take a look at the recipe. During this talk, Natalia will mix a pinch of what active listening is with an ounce of why it's worth practicing. Then, she'll add a spoon of its effect on developing other soft skills and improving (not only) workplace communication. In the end, she will put into the pot a few cups of tips and tricks for its daily basis usage. Et voila! The base of the cake for polishing mutual understanding in the workplace and not only - is ready! If you're interested in soft skills - that speech is for you. If you are not a fan of soft-skills-related topics - all the more, you should participate!

Natalia Romańska

Natalia is a QA professional with over three years of experience. She comes from Krakow (Poland) and is a big fan of a holistic approach to Quality Assurance which starts from neatly designed processes. Transparent communication enthusiast, highlighting its importance in the workplace daily. Privately passionate about planning shorter or longer trips and crazy a bit about Friends, Harry Potter, and the perfume industry.

QA to QE transformation

by Nedko Hristov - Cloud and DevOps engineer @ Several Clouds

Spending years in the QA field sometimes feels exhausting. The logical path is to master new skills and become Automation QA. But what comes after that? What can make some of us happy again? Quality Engineer is a fresh new direction we can focus on. It's even more challenging because QE shifts left to the process of owning the product and its operations long before it's ready to be tested by the QA team. In this short lecture, Nedko will show you all the pros and cons to consider, some success stories, and a fresh new look at our career path.

Nedko Hristov

Nedko Hristov is passionate about the quality of all its forms. He started "hundreds of years ago" at IT. He had some yay and nay stories to share, mostly had the experience from a first hand (note - do not, I repeat: do not make performance testing demo live, you'll thank me later). His experience starts as a QA and System Administrator and goes to a Cloud and DevOps engineer. He's mainly focused on AWS certifications these days. Huge motivation comes from success stories where everything starts from - "Guys, let's try this" and is later implemented into day-to-day processes. Knowledge sharing is the part of his job that he loves together with a "Getting things done" attitude (plus, please don't put this here, but dark humor and even worse - dad jokes), but do you know what he doesn't like? Deleting databases in production (been there, done that). Other conferences that he attended were 3 x QA: Challenge Accepted, Dev.BG and ISTA plus lots of time in local meetups. Nedko is a full-time father of (almost) two, a randonneur, and a lecturer in his free time.

Beer break

Did you know that Cenosillicaphobia is the fear of an empty glass. Make sure you have a full glass or bottle nearby.

Lightning Talks

A lightning talk is a short presentation lasting up to 5 minutes. If you would like to talk on any topic that might be interesting for the rest of the community, we invite you to sign up on the conference day and share your thoughts from our stage.

Closing Ceremony

Time for the QA award, an entertainment show, some raffle prizes from our sponsors, and the finale grande!

Afterparty Preparation

We need just a couple of minutes to rearrange the hall...


Time to grab a drink and continue the interesting discussions during the day, make new friends, and have fun!


That's all, folks! QA passed, issue closed.


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

29 Apr
Event is officially announced

Call for papers opened.
Super early bug tickets on sale
Only 100 tickets available.


17 May
Super early bug tickets sale ends

Early bug tickets on sale
Only 100 tickets available


24 Jun
Early bug tickets sale ends

Standard bug tickets on sale


1 Jul
Call for papers ends


18 Jul
Agenda announced

Nominations for QA of the year open


1 Aug
Call for volunteers ends

Call for sponsors ends


10 Aug
Nominations for QA of the year end

Voting starts


1 Sep
Onsite tickets sale ends

Last chance to buy an onsite ticket


7 Sep
Online ticket sale ends

Last chance to buy an online ticket
Voting for QA of the Year ends


Another conference organized by us, dedicated to software development and held the day before


10 Sep
QA: Challenge Accepted

The conference day

QA of the Year 2022 Award

Vote for our three nominees:

Dimitar Topuzov

Dimitar Topuzov is responsible for enormous positive changes in his company (Progress). He helped seven different teams with technical guidance for building scalable and stable test automation and CI. Dimitar has written thousands of E2E tests, done hundreds of code reviews, and optimized multiple CI pipelines for speed (up to x5 times faster) and stability (aiming for less than 1% flakiness). He has also been a lecturer at many events such as DEV.BG meetups, QA: Challenge Accepted (including the current edition), DevReach, etc. He is also an active participant in the Software Quality Assurance Bulgaria group.

Kamen Yankov

Kamen Yankov built and developed a core on-prem Automation QA team at SEEBURGER in the last 15 years. He and his team successfully migrated an enormous enterprise product using a comprehensive technological stack. His department members describe him as an Inspirational QA Team Leader with solid teamwork skills. He is a crucial member of the management potential development in the company and a brand ambassador. Kamen strives to develop his team daily and shares his knowledge in many different meetups and events.

Roumen Zlatev

Roumen Zlatev has been a QA engineer since 2003, working for various companies and projects - product and consulting, both in Bulgaria and other EU countries. Roumen has held technical and managerial positions and is currently Senior QA and Team Facilitator at i:fao. Roumen has been helping dozens of young professionals acquire new skills in software testing as a lecturer at the Skillo IT Academy. He also takes part in various conferences and seminars.

WINNER: Dimitar Topuzov


Gold Sponsors:

Silver Sponsors:

Bronze Sponsors:


Sofia Tech Park
IT Weekend - Тренировъчен лагер за IT специалисти - най-голямата ИТ общност в България
ITEventZ - Твоят гид в света на ИТ събитията
Noob 2 Junior
Women Who Code
Coding Girls Sofia
Women Techmakers – портретна, модна, продуктова фотография
Kiwi TCMS - the leading open source test case management system
ERP Academy
PromoBG Shop
Ora - Task management done right!
Coffee And Book
Diplomat Plaza Hotel & Resort
Devin - Mind Your Body
Sofia Karting Ring