Manual Tester – OS&R

Stack

Responsibilities

• ▹Develop comprehensive, well-structured test cases based on business and technical requirements
• ▹Prepare and execute regression test sets to evaluate system stability
• ▹Apply REST API testing methodologies and validate endpoints using tools like Calypso and Hoppscotch
• ▹Perform a diverse range of testing: manual, automated, integration, regression, and smoke testing
• ▹Log, review, and analyze test results to verify objectives are met
• ▹Report, track, and verify defects using tools such as JIRA and Xray
• ▹Collaborate with developers to ensure defects are properly resolved and prevented from recurring
• ▹Coordinate testing efforts with other teams for seamless end-to-end process validation
• ▹Communicate continuously with several teams inside and outside the Hub
• ▹Actively participate in improving testing workflows, procedures, and tools
• ▹Stay current with QA, automation, and industry trends (e.g. AI testing tools)

Requirements

• ▹Solid understanding of the software testing lifecycle, practices, and concepts (manual and automated testing)
• ▹Basic knowledge of REST API testing techniques and tools such as Calypso, Hoppscotch, or equivalents
• ▹Familiarity with XML, JSON validation, and transformation technologies
• ▹Databases and SQL knowledge
• ▹Knowledge of SDLC and STLC
• ▹Hands-on experience with defect tracking tools (JIRA) and integration plugins like Xray
• ▹Knowledge of Agile methodologies, particularly Kanban and Scrum
• ▹Foundational understanding of telecommunication processes, including system integration and workflows (with a focus on OSNR processes)

Nice to have

• ▹Hands-on experience with test automation tools
• ▹Familiarity with AI tools for QA and testing
• ▹Ability to adapt to evolving processes and technologies
• ▹A proactive approach to continuous improvement in QA techniques
• ▹Self-motivation to develop quality assurance skills

Soft skills

About the company

Deutsche Telekom IT Solutions, Hungary's most attractive employer in 2025 according to Randstad's representative survey, is a subsidiary of the Deutsche Telekom Group with more than 5300 employees providing IT and telecommunications services to large corporate customers in Germany and other European countries. DT-ITS received the Best in Educational Cooperation award from HIPA in 2019 and was recognized as the Most Ethical Multinational Company the same year. The company continuously develops its sites in Budapest, Debrecen, Pécs, and Szeged. This role is on the Digital Hub OS&R team, which develops IT solutions for the planning, building, and operation of broadband network infrastructure (including BNG), covering the full network lifecycle.