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Senior Full Stack QA Engineer at Ciklum - QATestingJobs.com
Senior Full Stack QA Engineer
Ciklum • Bulgaria
remotefull-time
Salary: 25 pa
Posted Feb 10, 2026
Role & seniority: Senior Full Stack QA Engineer (full-time) in Bulgaria
Stack/tools: Playwright, Jest or similar frameworks; TypeScript, JavaScript, Cucumber; REST API testing; HTTP libraries; CI/CD integration; GIT; manual & automated testing
Top 3 responsibilities
Collaborate with development and product teams to establish test approaches; design/execute test plans and cases (API, UI, regression, functional, non-functional)
Develop and run manual and automated tests; integrate tests into CI/CD; maintain test data and environments; analyze results and report stability
Must-have skills
5+ years in software development or QA automation with BDD
Experience with manual and automated test harnesses; REST API testing
Proficiency in Playwright/Jest (or similar), TypeScript/JavaScript/Cucumber; HTTP libraries; GIT
Strong English communication; ability to guide juniors; attention to detail
Nice-to-haves
Experience leading UAT; improving QA processes; onboarding new team members
Ability to mentor and share best practices; project-wide QA process improvements
Location & work type: Bulgaria-based, full-time role (on-site/hybrid not specified)
Full Description
Ciklum is looking for a Senior Full Stack QA Engineer to join our team full-time in Bulgaria.
We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.
About the role
As a Senior Full Stack QA Engineer, become a part of our cross-functional development team. This role requires you to work in a multi-functional Agile team, where you may be the single QA Engineer, supported by the Quality tribe. You will be responsible for ensuring that software meets both the customer requirements and Quality standards, utilizing an automation first approach.
Client reimagines energy to bring net-zero within everyone’s reach. The Client's Platform enables energy utilities to unlock the full value of a radically changing energy system and propel us to a future where renewable energy is sustainable, affordable and accessible for all. From automating and simplifying core operations including billing to create a lower-cost, higher-engagement experience, to optimising energy usage across smart devices in the home, we turn tough challenges into win-win-win outcomes for customers, suppliers and the energy system.
Responsibilities
Collaborate with development and product teams to establish test approaches
Design and implement test plans and cases
Develop and execute manual and automated tests such as API, UI, Regression, functional and non-functional tests
Integrate automated scripts/tests into the CI/CD pipeline to ensure reliable and high-quality software releases
Test case adjustments for automated testing needs
Prepare, set up and maintain test data and test environment preparations
Analyze test results and report about stability of the product under test
Identifying defects and collaborating with the team to resolve them
Plan and lead User Acceptance Testing (UAT) with internal and external users
Contribute to team initiatives to improve the overall QA process, such as identifying gaps or inefficiencies in automation workflows and manual testing processes and suggesting improvements
Manage, analyze, and mitigate testing risks
Onboarding of new team members on the project
Suggests improvements to testing and release workflow
Requirements
5+ years of software development or QA automation experience using Behaviour Driven Development (BDD)
Experience maintaining and executing both manual and automated test harnesses
Experience with Playwright, Jest or other best in class testing frameworks
Experience with TypeScript, JavaScript, Cucumber, HTTP request/Assert libraries
Experience with CLI tools such as GIT
Excellent verbal and written communication in English
Ability to communicate clearly and in a timely manner with technical and non-technical stakeholders
Excellent attention to detail
Capable of guiding junior team members in creating effective test documentation and best practices, enhancing the overall quality of the testing process
What`s in it for you?
Regular salary reviews based on performance
Corporate events: webinars, offline parties, and meetups
Internal Mobility Program
Tailored education path (including full access to Udemy, certifications, etc.)
25 paid days off: 20 business days of vacation per calendar year + 5 undocumented sick leave days
Additional health insurance
100% company-covered Multisport card, with discounts available for family members
About us
At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.
Since expanding to Bulgaria in 2022, we’ve been building a fast-growing team that thrives on learning, collaboration, and innovation. Join us on this exciting journey and help shape the future of our delivery center.
Want to learn more about us? Follow us on Instagram, Facebook, LinkedIn.
Explore, empower, engineer with Ciklum!
Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.