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QA Engineer (Working Student)

Location: Remote (Germany)
Contract: Working Student Contract, up to 20 hours per week
Start Date: Flexible

About Us

At Zubs GmbH, we’re on a mission to simplify subscription management for Shopify merchants. We’re building powerful, flexible tools that help e-commerce brands create seamless subscription experiences for their customers—without the hassle.

Founded as a fully remote startup, we’re a small but ambitious team of around 10 people, passionate about innovation and moving fast. We believe in real ownership: everyone at Zubs has the freedom to make decisions and the responsibility to drive results. No micromanagement, just trust, autonomy, and collaboration.

Role Overview

We are looking for a QA Engineer (Working Student) to join our team and play a key role in ensuring the high quality of our mobile and web products. This is a great opportunity to gain hands-on experience in Quality Assurance while actively shaping the QA processes in a fast-paced, agile environment.

What You'll Do

Conduct manual testing of our mobile app and web applications to identify bugs and ensure smooth user experiences.
Collaborate closely with developers and product managers to understand features and requirements.
Help design, document, and maintain QA processes and best practices within the company.
Write clear and detailed bug reports and test cases.
Support in regression testing and release validation to maintain product stability.
Continuously provide feedback to improve product quality and user experience.

What We Expect from You

You are currently enrolled in a university program (Computer Science, Software Engineering, or similar).
Passion for software quality and a strong eye for detail.
First experience or strong interest in manual testing of mobile and/or web applications.
Basic understanding of software development and testing concepts.
Proactive mindset with strong communication and collaboration skills.
A structured approach to problem-solving and documentation.
Fluency in English (German is a plus).

What We Offer

Up to 20 flexible hours/week with full support to balance your studies.
100% remote work in Germany, with an optional co-working space in Frankfurt am Main.
30 days vacation annually, plus flexible working hours.
50 € monthly gift card (IKEA, LIDL, Adidas, and more).
High-end hardware & premium tools, including Cursor and ChatGPT Plus.
A chance to shape QA processes and grow in a supportive, collaborative team.