Senior QA Engineer
On-siteSofia, Sofia-Capital, Bulgaria
Sofia, Sofia-Capital, BulgariaOn-sitePart TimeSenior LevelSmall
Part TimeSenior LevelSmall
Job Summary
Design and execute manual, exploratory, integration, and end-to-end tests while maintaining comprehensive test plans and documentation. Analyze product requirements with developers and stakeholders, then test and validate APIs, backend services, and SQL-based database data. Investigate issues through logs and root-cause analysis to track and report bugs, while supporting delivery planning by estimating testing effort and surfacing dependencies. Contribute to automation testing using C# and/or Python, identifying risks and gaps early to communicate proactively with the team.
Required Qualifications
- 4+ years of commercial software testing experience
- Senior-level QA knowledge and ownership
- Strong grasp of QA processes: test design, requirements analysis, exploratory/integration/E2E testing, defect management
- Strong API/backend testing experience with distributed systems (SOA / RESTful APIs)
- Good SQL and database testing/validation skills
- Experience troubleshooting complex systems, including logs and root-cause analysis
- Automation experience, ideally in C# and/or Python
- Strong QA fundamentals with automation in another language
- Basic familiarity with CI/CD concepts and pipelines
- Strong written/spoken English
- Critical thinker
- Experience with Big Data and Data Lakes
- Experience with Power BI
- Experience testing data/ETL pipelines
- Experience with PostgreSQL, MongoDB, Aerospike
- Experience with Pulsar
- Experience with containerization (Docker + Kubernetes or others)
- Experience with k6
- Hands-on CI/CD configuration/maintenance experience
- Working knowledge of Jira and Confluence
- Experience in an Agile work environment (SCRUM, Kanban, Scrumban)
- Experience with Git or another DVCS
- Experience working with logs and log analysis tools, including Kibana
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