QA Engineer

Job description

⭐️ CoreStar is a dynamic technology company supporting partners in heavy-load industries with high-performance solutions. Our expert teams bring a startup-driven mindset, focusing on innovation, collaboration, and efficiency in every project. At CoreStar, you’ll have the opportunity to grow your skills, tackle exciting challenges, and directly contribute to impactful products. ⭐️ About the role We're looking for a QA Engineer to take ownership of quality across our web products — both the sites already live and the ones we're preparing to launch. This is a hands-on, individual contributor role, not an execution-only one. If you like being the person who knows where a product is fragile and can say so with evidence, this role will suit you ⭐️ Who you are ✔️ An owner, not a ticket-taker — you treat product quality as yours. You ask why a feature exists and who it's for, you raise risks early instead of reporting them after release ✔️ Risk- and priority-driven — you can explain why you tested this deeply and that lightly. You know the difference between "we found no bugs" and "we covered the risk" ✔️ Deliberate about test types — you know which technique fits which situation, and you don't reach for a full regression pass when an exploratory charter would answer the question faster ✔️ A clear communicator — you write precisely enough that a remote colleague can act on your report without a follow-up call ✔️ Diplomatic, but delivery-driven — you navigate differing opinions across dev, design and business teams with tact, while keeping everyone focused on the release date ✔️ Positive and resilient — constructive and solution-oriented under release pressure ⭐️ What skills you need to have ✔️ 3+ years in manual QA of web products , including sites running in production with real users ✔️ Solid knowledge of QA fundamentals: testing processes, methodologies, test documentation, client-server architecture ✔️ Functional and non-functional testing: cross-browser and cross-device compatibility, responsive layout, perceived performance, basic accessibility, usability, and security hygiene (input handling, authorization, exposed data) ✔️ L10n and i18n testing ✔️ API and browser-level testing : REST API testing with Postman / Swagger, confident use of DevTools (network, console, storage, device emulation) ✔️ Testing across the release lifecycle : both hardening a new site for launch and verifying changes safely on a live product (smoke on production, post-release verification, regression scope for hotfixes) ✔️ Monitoring and logging systems — Grafana, Coralogix or equivalents; able to use logs and dashboards to investigate an issue rather than only reproduce it ✔️ English B1 + 📌 Benefits: 🏝 24 working days of paid annual leave 🤝 6 days of paid sick leave 🖊 Official employment 📄 Medical insurance ☕️ Coffee zone with fruit & snacks available in the office 🥗 Corporate Lunch provided by the company 💪 Gym and sports classes 🙌 Healthy and friendly work atmosphere 📚 Greek and English language classes (partially covered) Join us and be one of the Core Stars! ⭐