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Senior Software Engineer in Test at Kaizen Gaming - QATestingJobs.com
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Senior Software Engineer in Test
Kaizen Gaming • Thessaloniki, Macedonia and Thrace, Greece
hybrid
Posted Jan 30, 2026
Role & seniority: Senior Software Engineer in Test (SDET)
Stack/tools
Programming: C# (OOP)
QA: software QA methodologies, test planning, STLC ownership
Automation: Selenium, Playwright; test automation design (functional/non-functional)
Tools: JIRA, X-Ray; SQL databases
Methodologies: Agile/Scrum; Behavior Driven Development (BDD)
Top 3 responsibilities
Review user stories and acceptance criteria; develop manual and automated test cases in collaboration with the dev team
Design and implement complex automation solutions; guide cross-teams’ SETs on infrastructural testing
Own testing life cycle for new features; conduct code reviews, pair programming, and ensure timely, quality delivery; mentor teammates
Must-have skills
5+ years as SDET or similar
Strong QA methodologies, tools, and processes
Hands-on web automation (Selenium/Playwright)
Good testing pyramid understanding; defect tracking/test management (JIRA, X-Ray)
SQL and relational DB experience
Agile/Scrum experience; collaboration with product teams
English fluency; strong communication
Nice-to-haves
Experience with BDD
Mentoring/ coaching experience; ability to operate in ambiguity
Additional programming languages or testing frameworks
Location & work type
Hybrid work model; support onboarding buddy; multiple offices across Europe; global team context
Full Description
We are Kaizen Gaming
Kaizen Gaming, the team powering Betano, is one of the biggest GameTech companies in the world, operating in 19 markets. We always aim to leverage cutting-edge technology, providing the best experience to our millions of customers who trust us for their entertainment.
We are a diverse team of more than 2.700 Kaizeners, from 40+ nationalities spreading across 3 continents.
Our #oneteam is proud to be among the Best Workplaces in Europe and certified Great Place to Work across our offices. Here, there’ll be no average day for you. Ready to Press Play on Potential?
Let’s start with the role
You will join an autonomous Agile team and work closely with the Product Owner, Agile Delivery Lead and Software Engineers to create a competitive advantage for Kaizen and offer a unique online experience to our customers.
As a Senior Software Engineer in Test, you will utilize your experience and technical expertise to make your mark in our software development’s life cycle. Relish the chance to create an impact in this key role where you will liaise with talented engineers and business experts. Your understanding of the testing life-cycle will see you liaise seamlessly with a broad cross-section of colleagues, product owners and stakeholders, and provide a vote of confidence regarding the quality of the product.
As a Senior Software Engineer in Test you will
Review user stories and acceptance criteria in order to develop effective test plans and both manual and automated tests cases in collaboration with the development team
Design complex automation solutions regarding functional and non functional testing
Guide cross-teams’ SETs in designing and implementing infrastructural solutions
Conducts code reviews and pair programming sessions
Implement your deep knowledge of testing strategies and demonstrate the ability to contribute in all levels of the test pyramid
Responsible for the STLC of new features on testing suites, taking technical ownership to ensure timely and quality delivery
Research test tools, methodologies, and trends and upgrade existing practices and processes.
Work independently, coach fellow software engineers in test and develop their technical skills.
Mentor colleagues in view of ambiguity and constant changes.
What you’ll bring
We are looking for a Senior Software Engineer in Test who is a team player with a can-do attitude and excellent communication skills.
BS/MS degree in Computer Science/Software Engineering or an IT related discipline
5+ years of experience as a Senior Software Engineer in Test (this is just an indication, your actual skills matter the most)
Hands-on and strong experience in OOP languages (C# preferable)
Strong knowledge of software QA methodologies, tools and processes
Test Plans DevelopmentManual Test CasesAutomated Test CasesAutomation Solutions DesignFunctional TestingNon-Functional TestingCode ReviewsPair ProgrammingTest PyramidSTLC OwnershipTest Tool ResearchMentoringOOP LanguagesQA MethodologiesWeb Browser AutomationAgile/Scrummulti-location
Hands-on experience with web browser automation tools (e.g. Selenium / Playwright)
Good understanding of all levels of the testing pyramid
Experience in defect tracking and test management tools such as JIRA, X-Ray etc
Familiarity with relational database engines (SQL)
Experience working with Agile/Scrum software development methodology
Experience working closely with product teams to understand requirements and verify/validate they are met
Passion for continuous learning and self-development
Fluent communication skills in English (both written & verbal)
Understanding of Behavior Driven Development
Kaizen Gaming Perks
🕑 Hybrid way of working
🏃 A buddy will support you with your onboarding
💸 Competitive pay & bonus scheme
👩⚕️ Private health insurance for you and your family
💰 Monthly meal allowance
⭐Developmental 360° feedback framework
📚 Unlimited access to Udemy & continuous training
#LI-Hybrid
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