Senior QA Engineer

Ljubljana, Slovenia | Product Development | Full-time | Fully remote


We are searching for an experienced Senior QA Engineer that will help us solve our challenges of scale, integration, quality, and agility. We provide the best SAAS platform for automating and scaling creative production on the market. Our customers are the biggest brands and publishers in digital advertising.


  • extraction of key product features (business and product-wise) based on specification, identification of associated risks and application of appropriate test procedures 
  • ownership and accountability for product’s test plans and test strategies 
  • committed execution of exploratory and automated testing 
  • a critical view on new feature implementations and existing development processes


  • 3+ years of experience in a QA and web technologies related field 
  • good knowledge of web technologies (Javascript, HTML, CSS, PHP), web development tools and QA methodologies
  • hands on experience with test automation tools (Puppeteer, Selenium, Appium, Eggplant), other test frameworks and scripting languages (bash, python, ruby, javascript) 
  • solid understanding of design principles and UX
  • fluent in spoken and written English

What we do 

Celtra world-class products

In the past years, Celtra has built two world-class products, Creative Enablement (CE) & Creative Automation (CA)

  • Creative Enablement (CE)

Creative Enablement is already a growing market leader for a couple of years, helping companies such as CNN, TripAdvisor, Bloomberg, NBCU, ... to enable creativity and improve the quality of their advertising inventory. Our technology enables customers to generate and serve thousands of ads in seconds.

  • Creative Automation (CA) 

Celtra’s younger CA product is chasing a much bigger opportunity by helping brands make content creation better, faster, and more efficient. It is still in the early days of development and lots of features need to be developed, but it already has an impressive list of customers such as Spotify, adidas, Shopify, Unilever, P&G Lululemon…

At Celtra the end goal is to build great and quality products and make our users’ life easier. We’re on a journey to create something new in the creative technology space. 

What we offer 

  • Competitive salary.
  • Unlimited remote working. You can choose to work from home indefinitely or join us in our Ljubljana office whenever you feel like it.
  • Flexible hours and work-life balance. We focus on results rather than schedules.
  • Professional growth. Up to €5.000 per year for conferences, books and trainings of your choice.
  • Top-notch working equipment.
  • Additional budget of 500 EUR for your home office equipment.
  • Health and pension coverage. We offer comprehensive health coverage and additional pension insurance up to 5,8% of your annual salary.
  • We have fun. We organise regular team & company events.
  • Employee well-being. Dedicated budget for any kind of sport activities such as fitness, yoga lessons, etc.
  • Free breakfasts & beverages available in the office.