Senior Test Automation Engineer

About Zertificon

Zertificon develops B2B software solutions for secure digital communication – made in Germany, GDPR-compliant, without forced cloud usage. Our customers: companies, energy providers, authorities. Our products: software solutions for email encryption and signature, secure file transfers, and market communication for energy companies. We have been on the market for over 20 years and employ well over 100 people from 30 nations.

Now we are looking for you to...

Your Tasks

Join us as a Senior Test Automation Engineer and be the driving force behind flawless software. Rapidly develop state-of-the-art automated tests to expand our test coverage and ensure no regressions slip through with every new feature release. Regularly measure and improve the performance of our software and be the guardian of the quality and excellence our customers deserve. Your expertise will be crucial in delivering robust and reliable solutions.

Your Profile

• Demonstrable experience (at least 5 years) as a Software Test Engineer in an agile software development environment
• Excellent knowledge of ISTQB test specification methods and management, ideally certified
• Comprehensive experience in test automation methods with advanced techniques
• Knowledge of the test frameworks Selenium, Cucumber, and Playwright
• Initial practical experience with Docker for containerization
• Proficiency in Java and JavaScript, familiarity with Linux and shell scripting
• You have an open and clear communication style and excellent English skills

Experience in the following areas is an advantage:

• Practical experience with test documentation tools like TestRail
• Experience with mobile testing using Appium
• Good German language skills

We Offer

• Flexible working hours and home office option
• Mobility: Free Germany ticket, JobRad leasing, or parking
• Subsidies for food (e.g., Lieferando) and internet at home
• Urban Sports Club membership for flexible sports, fitness, and wellness activities
• Benefits in the office: Rooftop terraces & green courtyard, organic fruit and drinks, acceptance of private packages
• Get-together: monthly Pizza Friday in the office, regular team events, large summer party
• Responsible leadership: structured onboarding, regular feedback, transparent goals
• Innovative without startup risk: Profitable for two decades, we invest in innovation from our own resources with great global market potential.
• International team: Over 120 people from more than 30 nations shape an open working atmosphere together.

About Us

Why Zertificon?

Zertificon stands for securing digital business. We develop IT security solutions "Made in Germany" that companies trust – and that they like to use.

• Independent & convinced: For over 20 years, we have been developing secure communication solutions – owner-managed, sustainably growing, and with conviction.
• Security with purpose: We believe in the freedom of digital communication. If you think Edward Snowden did the right thing as a whistleblower, we might share the same values. As a sign of our conviction, after successfully completing the probationary period, we donate €1,000 to an organization supporting Edward Snowden – provided you mentioned him in your application.
• Excellence through practice: We take on complex challenges – because we can. Our internal experts are among the best – even external specialists often learn from us. If we want the best result, we do it ourselves.
• Agile by conviction: We think fast, act pragmatically, and continuously improve. No bloated processes, no "because we've always done it this way." Initiative is welcome – of course, it is also questioned, and not every fixed idea gets through.
• Security that is used: We build software that is not only secure but also usable – not only for large corporations with teams of IT security specialists but also for small and medium-sized businesses that need strong security without complexity.
• Diversity with focus: Our team of 130 employees and over 30 nationalities works together to make secure digital communication easily accessible for companies of all sizes.

Do you feel addressed? Then we look forward to your application.