Senior Software Tester

We are seeking a Senior Software Tester to join the IT Systems Development & Maintenance team.

Your future team:

We’re building something exciting - a new e-commerce and marketing platform based on composable, headless, cloud architecture. Our ambition is to deliver a seamless, fully tailored end-to-end customer experience.

As a Senior Software Tester, you’ll join a collaborative team of 12 specialists primarily located in Poznań - a group known for strong cooperation, good humor, and an ever-evolving passion for billiards. Your mission will be to ensure quality across the entire stack and help shape the future of our test automation standards.

You’ll also play a key role in supporting multiple development teams as we undergo a major architectural transformation of our web development landscape. As part of our Tester Center of Excellence, you’ll help define, implement, and maintain automation standards that will guide the testing environment across ROCKWOOL.

What you will be doing:

• Designing and executing manual test cases to validate features across backend, frontend, and integrations;

• Introducing and establishing the test automation framework, including governance, best practices, and standards; 

• Developing and maintaining automated test suites for regression, integration, and performance testing.;

• Collaborating with developers, product owners, and business stakeholders to ensure quality from concept to delivery;

• Troubleshooting and analyzing defects, ensuring timely resolution;

• Driving continuous improvement in testing processes and tools;

• Documenting test strategies, plans, and results to support sprint goals. 

What you bring: 

• 5+ years of experience in software testing, including both manual and automation;

• Strong knowledge of test design techniques, defect management, and QA processes;

• Hands-on experience with automation frameworks (e.g. Playwright) and scripting languages (Python);

• Ability to set up and govern automation standards across projects;

• Familiarity with CI/CD pipelines and integrating automated tests;

• Understanding of performance, security, and usability testing;

• Experience with API testing and tools like Postman;

• English proficiency at B2 level or higher (spoken and written);

• Excellent communication skills and a collaborative mindset;

• A proactive, can-do attitude and openness to new ideas;

• Passion for GenAI and its potential to enhance and automate the testing lifecycle.

Preferred Skills: 

• Knowledge of Optimizely DXP and headless CMS setups;

• Experience with Azure cloud environments;

• Familiarity with microservices architecture and containerization (Docker);

• Performance testing tools (e.g., JMeter);

• React testing libraries (as a bonus);

• Algolia Search (as a bonus).

Stack Overview: 

• Testing Tools: Playwright, Postman, Chromatic, Storybook, Browserstack, JMeter, OWASP Zap, Python, TypeScript, Figma;

• Backend: Episerver/Optimizely CMS, Microservices, Apache Kafka, GraphQL, Algolia;

• Frontend: NextJS, Webpack, React, TailwindCSS;

• DevOps: Azure DevOps, GitHub Actions, Docker;

• CI/CD Integration: Azure DevOps pipelines, GitHub Actions;

• Source Control: Git, GitHub, Gitflow.

What we offer: 

By joining our team, you become a part of the people-centric work environment of a Danish company. We offer you a competitive salary, permanent contract after the probation period, development package, team building events, activity-based office in Poznan’s or Warsaw's city centers. The buildings are recognized as a building without barriers, which means that it is fully adapted to the needs of people with disabilities.

Our compensation package on employment contracts includes:   

• An office-first approach: home office is available up to 2 days per week

• Adaptable Hours: start your workday anytime between 7:00 AM and 9:00 AM

• Home office subsidy

• Private Medical Care

• Multikafeteria MyBenefit

• Wellbeing program

• Extra Day Off for voluntary activities

… and while in the office you can also use modern office space with beautiful view and high standard furniture, bicycle parking facilities & showers, chill-out rooms with PlayStation, football table, pool table, board games, subsidized canteen with delicious food & fruit.

Interested?  

If you recognize yourself in this profile and challenge, we kindly invite you to apply with CV written in English. 

Who we are:

We are the world leader in stone wool solutions. Founded in 1937 in Denmark, we transform volcanic rock into safe, sustainable products that help people and communities thrive. We are a global company with more than 12,200 employees, located in 40+ countries with 51 manufacturing facilities… all focused on one common purpose – to release the natural power of stone to enrich modern living.   

Sustainability is central to our business strategy. ROCKWOOL was one of the first companies to commit to actively contributing to the United Nations Sustainable Development Goals (SDGs) framework and are actively committed to 11 SDGs, including SDG 14, Life Below Water. Through our partnership with the One Ocean Foundation and in connection with our sponsorship of the ROCKWOOL Denmark SailGP team, we will help raise awareness around ocean health challenges in an effort to accelerate solutions to protect it.     

Diverse and inclusive culture:

We want all our people to feel valued, respected, included and heard. We employ 79 different nationalities worldwide and are committed to providing equal opportunities to all employees, promote diversity, and work against all forms of discrimination among ROCKWOOL employees. 

At ROCKWOOL, you will experience a friendly team environment. Our culture is very important to us. In fact, we refer to our culture as “The ROCKWOOL Way”. This is the foundation in which we operate and is based upon our values of ambition, responsibility, integrity and efficiency.