Quality Assurance Engineer (m/f/d)

Your career oportunity (from 15.09.2026)

You combine strong, hands-on software testing skills with a practical understanding of AI-driven product features and modern AI-supported QA workflows? Also you like to ensure reliable releases across web and/or backend systems, while also contributing to quality strategies for AI-enabled functionality? Then this position might be the perfect fit for you!

Your Mission

• You own our test strategy end-to-end—and you continuously improve it across both manual and automated testing as we grow.
• You design, execute, and maintain test cases that cover new features, regressions, and the “it’ll never happen” edge cases.
• You build reliable automated tests (E2E and API) and you keep them healthy in CI/CD—stable, meaningful, and easy to maintain.
• You partner closely with Product and Engineering to clarify requirements early, tighten acceptance criteria, and prevent defects before they ship.
• You define quality signals and metrics that create real release confidence—not just a gut feeling.
• You raise the bar for AI-feature quality where relevant, including:
  - You test robustness across varied inputs (ambiguous prompts, noisy data, unexpected user behavior).
  - You check safety, privacy, and unintended outputs in line with product requirements.

Requirements

Your Superpowers

• Your Superpowers
• You’ve worked in software testing / QA engineering in cross-functional teams and you know what great collaboration looks like.
• You’re strong in test design, exploratory testing, and defect investigation—you enjoy finding root causes, not just symptoms.
• You have solid hands-on experience with test automation (e.g., Playwright, Cypress, Selenium) and API testing (e.g., Postman, Bruno).
• You’re comfortable with CI/CD and version control (e.g., Git and GitHub/GitLab pipelines) and you treat testing as part of delivery.
• You understand modern software delivery practices like shift-left QA, code reviews, observability, and documentation—and you apply them pragmatically.
• You have working knowledge of AI/ML or LLM-powered features and you can translate that into practical quality checks.
• You communicate clearly and think pragmatically—you balance quality, speed, and risk to help the team ship responsibly.
• Nice to Have
• You’ve tested AI/LLM features before (prompt variations, guardrails, unexpected outputs, evaluation approaches).
• You bring exposure to performance testing and/or security testing basics.

Benefits

Our Promise

🐦Flexibility & mobility

• Flexible working hours and location-independent mobile working, supported by a Germany-wide rail pass (Deutschlandticket) subsidized with 29 euros

• 30 days of annual leave (including 24 and 31 December) plus additional days off (wedding, relocation, birth)
• One volunteering day for a social project that is close to your heart

💛Health & prevention

• Stay fit with Jobrad and the sports offerings from Hansefit or EGYM Wellpass
• Full access to everything our mental health partner Bloom has to offer
• You also benefit from supplementary company health insurance from Allianz
• A monthly professional shoulder and neck massage at our Hannover office

🚀Career & Development

• An annual learning budget, currently 800 euros, for courses, books, or coaching
• Regular feedback and development conversations to support you in reaching your career goals
• A clear HERO career path so you can grow with us

🥳Teamspirit

• Sensational summer and Christmas parties as well as regular team events
• Annual co-workations with the HERO team elsewhere in the EU

🐛Want to know more?
Here you can find more information and impressions about us:

• Feel free to take a look at our application process on our careers page
• Get an even better impression of us from the reviews on ourKununu profile
• @weare_herosoftware on Instagram and HERO Software on LinkedIn!

Your application

Do you see your skills, your abbilites and, of course, your personality reflected in this job ad? Perfect! Then send us your application including your salary expectations via the application button.

We expressly encourage women as well as non-binary and trans* people to apply for this position. Applicants with severe disabilities will be given preference where qualifications are equal.

Your people of contact: Martine (Recruiting), Alberto (QA)

We look forward to receiving your application!

Salary Range: 42.000-63.000Euro/Jahr

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