QA Engineer (Performance + Manual Testing)
Spin Technology
Quality Assurance
Lisbon, Portugal
Posted on Feb 11, 2026
Spin.AI is a global SaaS cybersecurity company that protects mission-critical data across Google Workspace, Microsoft 365, Salesforce, Slack & more. Our product – SpinOne – is a leading platform that unifies SSPM, ransomware protection, DLP, backup & recovery.
We’ve been recognized by Forbes as one of the Top 500 Best Employers and continue to scale rapidly. As we grow, our platform must confidently handle massive data flows and high-load enterprise environments and this is exactly where we need you.
🚀 We are looking for a Performance-focused QA Engineer who will help us strengthen system stability, identify bottlenecks, and ensure our platform can handle high-volume enterprise workloads. At the start of your journey with us, you will:
— Audit the current system, find weak points, and improve performance quality
— Build and execute performance and load testing strategy
— Ensure the product withstands large data volumes and heavy user load
— Cover core functionality with tests (automation + manual when needed)
— Propose engineering improvements, not just report issues
This is a role for someone who thinks as an engineer, not just a tester.
This role is based in our Lisbon office in a hybrid format. If you are not currently in Portugal, we are open to remote work during the trial period, with relocation to Lisbon afterward.
🧰 Day-to-Day Responsibilities
- Automation Testing:
- Develop, maintain, and optimize automated tests on Java
- Use modern automation tools (e.g., Selenium, TestNG, JUnit).Integrate tests into CI/CD processes.
- Create scripts for load testing (1,000+ users).
- Utilize tools such as JMeter, Gatling, or LoadRunner.
- Conduct performance tests, analyze results, and monitor the system under load.
- Identify bottlenecks and provide recommendations to address them.
- Implement best practices to ensure system stability.
- Perform functional, regression, and integration testing.
- Analyze requirements and create test cases.
- Conduct manual testing of core system components.
- Report detected issues and collaborate with developers to resolve them.
Performance Testing:
Manual Testing:
📌 Requirements
- Technical Expertise:
- Proficient in Java and experienced in using it for writing tests.
- 2+ years of experience in automation testing (knowledge of tools such as Selenium, Appium, or similar).
- 2+ years of experience in performance testing (JMeter, Gatling, LoadRunner, or similar tools).
- Experience with monitoring systems (e.g., Grafana, Kibana,).
- Experience testing microservices architectures and APIs (Postman, Swagger, REST, SOAP).
- Familiarity with cloud platforms such as AWS, Google Workspace, and Azure.
- Understanding of database operations (e.g.,SQL, NoSQL) and ability to perform queries for testing.
- Proficiency in manual testing methods and approaches.
- Familiarity with task tracking systems (Jira, Trello, Azure DevOps). Experience in creating test cases, checklists, and preparing test documentation (Zephyr Scale)
- Attention to detail and responsibility.
- Strong teamwork and communication skills.
- Ability to work independently and solve problems proactively.
Manual Testing Skills:
Soft Skills:
Nice-to-Have:
- Experience with Docker, Kubernetes.
- Understanding of CI/CD processes and tools (Jenkins).
🌍 Why Spin.AI
- Work in a fast-moving, high-impact cybersecurity company recognized by Gartner, Forrester, and G2.
- Work on a real product with real users and visible business impact
- Work on an interesting and large-scale product
- Solve complex, non-trivial security and engineering challenges
- Opportunity to influence technical and product decisions
- Trust from management and autonomy in day-to-day work
- Strong, professional team with deep expertise
🎁 What we offer
- Annual performance-based salary review
- Annual performance-based bonus
- Referral bonuses
- Educational budget
- Sport & hobby compensation
- Medical insurance compensation
- Company presents (birthdays, anniversaries, weddings, etc.)
- Corporate travel parties twice a year