QA Engineer (performance + Manual Testing)

QA Engineer (Performance + Manual Testing)

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.
• Performance Testing:
• 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.
• Manual Testing:
• 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.

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.
• Manual Testing Skills:
• 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)
• Soft Skills:
• Attention to detail and responsibility.
• Strong teamwork and communication skills.
• Ability to work independently and solve problems proactively.

Why Spin.AI

• Recognized by Forbes as one of the Top 500 Best Employers.
• Work in a fast-moving, high-impact cybersecurity company recognized by Gartner, Forrester, and G2.
• Collaborative, transparent culture – your ideas and experiments matter.
• Direct impact: your work translates into real business growth and visibility.
• Remote flexibility, growth opportunities, and performance-based rewards.

What We Offer

• A dream team of highly motivated and talented people, ambitious goals.
• Unlimited PTO.
• Medical insurance.
• Corporate English.
• Amazing Team Building Activities.
• Employee Wellness Program.
• Conferences, training, and other events.