Junior Manual QA Engineer (German-speaking)

Techstack is a technology product engineering company that sets an example for high development standards in the IT industry. We empower each team member to influence the development of the product, company, and processes.

About the role:

We are looking for a Junior Manual QA Engineer for a long-term(4 years) part-time B2B engagement.

This opportunity is ideal for QA professionals who have initial commercial testing experience and are looking for an additional project alongside their current employment or freelance engagements.

Language requirements:

German: B2 or higher, with documented proof of proficiency.

English: B2 or higher, with documented proof of proficiency.

The project involves testing a multilingual web platform powered by a CMS, as well as a mobile application available on iOS and Android. The web platform supports more than 12 languages, making functional consistency, content accuracy, and user experience across different language versions important aspects of the testing process.

You will collaborate with an international, distributed team, contribute to testing activities, and help ensure a reliable experience for users across web and mobile platforms.

The role is primarily remote and includes occasional on-site testing sessions in Vienna, up to three days per year. Business travel expenses will be covered.

Requirements:

• At least 1 year of commercial software testing experience.
• ISTQB Certified Tester Foundation Level (CTFL) certification.
• Practical testing experience in at least one of the following areas:
  • Backend or API testing.
  • CMS testing.
  • Mobile application testing for iOS and/or Android.
• Familiarity with Agile methodologies.
• Ability to document test results and report software defects clearly.
• German proficiency at B2 level or above.
• English proficiency at B2 level or above.
• Documentary proof of both language levels, subject to the applicable certification requirements.

Responsibilities:

• Execute manual functional and regression tests for web and mobile applications.
• Follow existing test cases and contribute to maintaining test documentation.
• Identify, reproduce, document, and report software defects.
• Verify application functionality across different user scenarios and language versions.
• Support testing activities for CMS-based platforms, backend functionality, APIs, and mobile applications, depending on project needs.
• Collaborate with developers and QA colleagues to clarify issues and verify fixes.
• Participate in Agile team activities and communicate testing progress.
• Track defects and test execution results using Jira and Xray.
• Use Slack and Microsoft Teams to collaborate with team members.
• Communicate with German-speaking stakeholders and use English for collaboration where required.

Culture:

At Techstack, we care about how we build products — not only about the result, but also about the quality of the engineering process and the way we work together.

We encourage people to keep learning, share what they know, and take ownership of their work.

Tech Guilds — communities where specialists share knowledge, discuss technical solutions and approaches, and keep up with industry trends.

Meetups and knowledge sharing — opportunities to share your experience with colleagues and the wider tech community.

Mentoring and leadership — opportunities to learn from experienced colleagues, develop your expertise, and gradually take on more responsibility.

We believe that good products come from people who care about what they build, keep developing their expertise, and are comfortable both challenging ideas and being challenged.

What we offer

• A long-term international project engagement.
• Remote-first collaboration under a B2B contract.
• A part-time workload of approximately 45 hours per month, suitable for combining with other professional commitments.
• The opportunity to gain experience with web, CMS, and mobile testing in an international environment.
• Collaboration with a distributed team.
• Occasional business trips to Vienna, up to three days per year, with travel expenses covered.

See yourself in this role? Send us your resume and let’s start the conversation!