# QualityOne > QualityOne (legal entity: QualityOne OÜ) is an independent pure play software > testing company. It provides software quality assurance as its only business — > test consultancy, test automation, performance, security, usability, > compatibility and localization testing, through to fully managed QA and > Testing as a Service. Headquarters in Tallinn (Estonia), engineering site in > Munich (Germany), further offices in Lisbon, Valencia, Warsaw and Liepāja. > Munich is an engineering site, not a registered branch — the only company > register entry is the Estonian one. Founded 2016. Around 100 people. Clients are organisations that cannot afford a production defect: banks and insurers, automotive manufacturers, industrial groups and hospitality. Work is delivered from within the EU, in the client's own tooling and process, with certified test engineers (ISTQB / iSQI). The site is published in three languages: German (default, at the root), English (under /en/) and Spanish (under /es/). Every page exists in all three languages under the same structure. German and English slugs are largely identical; the Spanish slugs are translated, so the counterpart of a page is best resolved via the hreflang links in the page head rather than by rewriting the path. ## Services - [Functional & Mobile Testing](https://www.quality.one/en/services/functional-mobile-testing/): Validating that each function behaves as specified — workflows, forms, links, database consistency, cookie behaviour. - [Test Automation](https://www.quality.one/en/services/test-automation/): When automation pays off and when it does not; strategy, tooling (UFT, Selenium/Selenoid, Appium, CodeceptJS, API testing) and CI/CD integration. - [Performance Testing](https://www.quality.one/en/services/performance-testing/): Long-form guide. Load, stress, spike, soak, scalability and capacity testing; the metrics that decide a verdict (response times, throughput, resource use, Core Web Vitals); realistic load profiles and test environments; JMeter and k6; shift-left integration into CI/CD; FAQ. Delivered standalone or inside the TaaS model. - [AI powered Test Automation](https://www.quality.one/en/services/ai-powered-test-automation/): Long-form guide. AI-native testing in which agents validate complete business workflows instead of running brittle scripts: semantic understanding of interfaces, data-driven testing at scale, synthetic test data, process-level reporting, quality gates in CI/CD, and the limits of the approach. Quality Engineers keep the technical judgement; developers keep architecture, code and unit tests. Includes Testico®, QualityOne's own AI-assisted test management platform. - [Security Testing](https://www.quality.one/en/services/security-testing/): Vulnerability and security scanning, penetration testing, risk assessment, security auditing, ethical hacking, posture assessment. - [Compatibility Testing](https://www.quality.one/en/services/compatibility-testing/): Coverage across browsers, operating systems, versions, networks, mobile hardware and devices. - [Usability Testing](https://www.quality.one/en/services/usability-testing/): Moderated and unmoderated, quantitative and qualitative testing of how users actually work with a product. - [Localization Testing](https://www.quality.one/en/services/localization-testing/): Verifying behaviour, language and cultural fit per target locale. - [QA Consultancy](https://www.quality.one/en/services/qa-consultancy/): Auditing existing processes, tools and artefacts, then delivering a QA strategy and templates. - [Software Lifecycle QA](https://www.quality.one/en/services/software-lifecycle-qa/): Quality assurance across every SDLC phase, from requirements through to maintenance. - [Managed QA](https://www.quality.one/en/services/managed-qa/): QualityOne acts as the client's QA competence centre and owns the discipline end to end. - [Appliances Testing](https://www.quality.one/en/services/appliances-testing/): Testing the interplay between software and physical hardware, for example appliance control apps. - [TaaS – Testing as a Service](https://www.quality.one/en/services/taas-testing-as-a-service/): Long-form guide. Complete outsourcing of QA and test activities to a dedicated team: QualityOne's own QA infrastructure with cloud environments and device farms, or work inside the client's systems via VPN where compliance requires it; capacity scaled on demand; AI-powered test automation; performance, penetration and acceptance testing from one provider; FAQ. ## Company - [About us](https://www.quality.one/en/company/): Positioning as a pure play testing company, technology partnerships and project highlights. - [Clients](https://www.quality.one/en/clients/): Client references and the sponsorship of Nordic Testing Days and youth sport. - [Case studies](https://www.quality.one/en/case-studies/): Documented projects for UBS (mobile app testing, ~85% effort saved), BMW Group (e-commerce rollout, PIM, automated regression) and V-ZUG (combined app and appliance testing). - [Careers](https://www.quality.one/en/careers/): Open roles and how the company works. The five current roles: [Test Automation Engineer](https://www.quality.one/en/careers/test-automation-engineer/), [UFT Test Automation Engineer](https://www.quality.one/en/careers/uft-test-automation-engineer/), [Performance Test Engineer](https://www.quality.one/en/careers/performance-test-engineer/), [Test Manager](https://www.quality.one/en/careers/test-manager/) (fluent German required), [AI Test Expert](https://www.quality.one/en/careers/ai-test-expert/). - [QA Insights](https://www.quality.one/en/qa-insights/): Entry point to the knowledge base below. Carries no articles of its own. - [Contact](https://www.quality.one/en/contact/): All office locations and the contact form. ## Knowledge base Available in all three languages. The German versions live at the same paths without the `/en/` prefix; the Spanish ones are listed under "Spanish" below. - [Software Testing](https://www.quality.one/en/software-testing/): What software testing is, functional versus non-functional tests, the unit/integration/system/end-to-end levels, black-box versus white-box, manual versus automated, exploratory and API testing, and why testing fails in practice. - [Software System Testing](https://www.quality.one/en/software-system-testing/): What system testing delivers beyond unit and integration tests, which test types belong in it, the process, UI versus API testing, and common pitfalls. - [Automation Testing](https://www.quality.one/en/automation-testing/): What can and should be automated, the test pyramid, cross-browser coverage, maintainability, tooling, CI/CD quality gates and what test coverage actually means. - [Regression Testing](https://www.quality.one/en/regression-testing/): When regression tests become essential, how retesting, smoke and regression differ, choosing the right depth, and regression in a CI/CD pipeline. ## Optional - [Request a quote](https://www.quality.one/en/get-an-estimate/): Structured enquiry form for a no-obligation estimate. - [Privacy policy](https://www.quality.one/en/privacy-policy/): Published in English only. The German and Spanish URLs exist and carry the identical English text — this is deliberate, not a missing translation. - [Legal notice](https://www.quality.one/en/legal-notice/) - [German homepage](https://www.quality.one/): Same structure, German language. - [Spanish homepage](https://www.quality.one/es/): Same structure, Spanish language. ## Spanish Neutral Latin American Spanish, addressing the reader as "usted". The slugs are translated, so the paths differ from the German and English ones. - [Servicios](https://www.quality.one/es/servicios/): Overview of all thirteen testing disciplines. - [Pruebas funcionales y móviles](https://www.quality.one/es/servicios/pruebas-funcionales-y-moviles/) - [Automatización de pruebas](https://www.quality.one/es/servicios/automatizacion-de-pruebas/) - [Pruebas de rendimiento](https://www.quality.one/es/servicios/pruebas-de-rendimiento/) - [Automatización de pruebas con IA](https://www.quality.one/es/servicios/automatizacion-de-pruebas-con-ia/) - [Pruebas de seguridad](https://www.quality.one/es/servicios/pruebas-de-seguridad/) - [Pruebas de compatibilidad](https://www.quality.one/es/servicios/pruebas-de-compatibilidad/) - [Pruebas de usabilidad](https://www.quality.one/es/servicios/pruebas-de-usabilidad/) - [Pruebas de localización](https://www.quality.one/es/servicios/pruebas-de-localizacion/) - [Consultoría QA](https://www.quality.one/es/servicios/consultoria-qa/) - [QA en el ciclo de vida del software](https://www.quality.one/es/servicios/qa-ciclo-de-vida-del-software/) - [QA gestionado](https://www.quality.one/es/servicios/qa-gestionado/) - [Pruebas de hardware](https://www.quality.one/es/servicios/pruebas-de-hardware/) - [TaaS – Testing as a Service](https://www.quality.one/es/servicios/taas-testing-as-a-service/) - [Empresa](https://www.quality.one/es/empresa/): Positioning, technology partnerships, project highlights. - [Clientes](https://www.quality.one/es/clientes/) - [Casos de éxito](https://www.quality.one/es/casos-de-exito/): UBS, BMW Group and V-ZUG. - [Empleo](https://www.quality.one/es/empleo/): Open roles, with translated slugs: [Ingeniero/a de automatización de pruebas](https://www.quality.one/es/empleo/ingeniero-automatizacion-de-pruebas/), [Ingeniero/a de automatización con UFT](https://www.quality.one/es/empleo/ingeniero-automatizacion-uft/), [Ingeniero/a de pruebas de rendimiento](https://www.quality.one/es/empleo/ingeniero-pruebas-rendimiento/), [Test Manager](https://www.quality.one/es/empleo/test-manager/), [Experto/a en pruebas con IA](https://www.quality.one/es/empleo/experto-en-pruebas-con-ia/). - [QA Insights](https://www.quality.one/es/qa-insights/): Entry point to the knowledge base. - [Pruebas de software](https://www.quality.one/es/pruebas-de-software/) - [Pruebas de sistema](https://www.quality.one/es/pruebas-de-sistema/) - [Pruebas automatizadas](https://www.quality.one/es/pruebas-automatizadas/) - [Pruebas de regresión](https://www.quality.one/es/pruebas-de-regresion/) - [Contacto](https://www.quality.one/es/contacto/) - [Solicitar presupuesto](https://www.quality.one/es/solicitar-presupuesto/) - [Política de privacidad](https://www.quality.one/es/politica-de-privacidad/) - [Aviso legal](https://www.quality.one/es/aviso-legal/) ## Contact Email: mail@quality.one Phone: +49 89 244 111 480 Headquarters: QualityOne OÜ, Sepapaja tn 6, 15551 Tallinn, Estonia Engineering site: Edelsbergstraße 8, 80686 Munich, Germany