Florentino Esteban

**Environment**: Linux (RedHat, Ubuntu, CentOS, Kali), Windows 10/11, SIEM, SOAR, Deception Solutions, Ticketing (COTMS), EDR. As a Test Engineer working as a contractor with RHEA Systems for the European Space Agency's, I conducted and supervised testing operations to validate the deployment of a Cybersecurity Operations Center (CSOC) with critical cybersecurity components. My role focused on ensuring seamless integration, functionality, and security of systems designed to protect sensitive data and infrastructure. • Oversaw integration tests for CSOC components, ensuring secure and functional deployments. • Developed and reviewed test scenarios, collaborating with stakeholders to refine testing strategies. • Collaborated with Attivo engineers to assist with the remote configuration of Deception Solutions, ensuring seamless integration into the broader cybersecurity ecosystem. • Implemented security hardening measures based on CIS benchmarking to enhance system security and compliance. • Assisted in the configuration and optimization of Linux-based environments, leveraging VMs to host and test CSOC components while performing hands-on tasks such as component setup and troubleshooting. • Documented technical findings and test results, improving clarity and accessibility of system documentation.

Co-founded a business venture aimed at assisting migrant workers in Luxembourg with administrative tasks, showcasing leadership and strategic planning skills. Designed and configured IT systems at the company level, providing essential technical support to both the organization and clients. This included setting up hardware (printers, scanners) and software solutions like LuxTrust or other 2FA applications on mobile devices. Provided direct technical assistance to clients, particularly migrant workers from various countries who faced language barriers in completing administrative tasks required by local authorities, accessing tools such as MyGuichet or France Connect. I Gained valuable experience in budgeting, client relationship management, and strategic decision-making, all of which are directly applicable to professional roles requiring versatility and initiative.

**Environment**: Azure DevOps, Windows 10, PEGA Systems, Java, Teams, Office 365, Firefox, Chrome, Notepad++, OneNote. As a Functional Tester at AG Insurance in Brussels, I focused on ensuring software quality and system reliability through integration testing, defect tracking, and CI/CD validation within a non-life insurance application. • Conducted Integration, System (E2E, BB), and Acceptance (Alpha) tests to ensure optimal functionality, performance, and alignment with business requirements. • Performed non-regression testing to maintain system stability during updates, patches, and deployments. • Reproduced and analyzed bugs with developers to improve issue resolution efficiency and test coverage. • Validated patches and tracked incidents using Azure DevOps, ensuring seamless CI/CD operations. • Collaborated with development teams to refine test strategies and improve system reliability. • Created and maintained technical documentation, supporting knowledge sharing and test optimization.

**Environment:** Windows 10, ORACLE DB, Toad, SQLite, PL/SQL, Jira/Confluence, SoapUI 5.2, JSON, Web Services, Teams, Firefox, Chrome, Notepad++. Ensured software quality and system reliability for statistical data processing tools through functional testing, defect tracking, and API validation. Working at EUROSTAT on the EGR (Enterprise Group Registration) software application project, focusing on mapping business representation across Europe. • Developed and maintained test cases and test suites in Jira, ensuring full scenario coverage. • Executed Unit, System, UAT, and Non-Regression tests to ensure system stability during updates. • Conducting validation tests for the new Continuity Algorithm that re-calculates Business Group's redistribution. • Verified and reproduced bugs and anomalies, facilitating issue resolution with developers. • Validated patches in test environments, ensuring seamless software deployment. • Performed API testing using SoapUI, verifying data integrity during web service migrations. • Prepared test reports and documentation to inform stakeholders about progress and performance.

Environment: Windows Server, VMware vSphere, Hyper-V, MS SQL Server, REST API (Postman, Swagger), Selenium, Jira/Confluence, Agile, Visual Studio, JavaScript, HTML, CSS, Notepad++. As a Tester and later as a Quality Assurance Engineer at Neocase Software, I focused on ensuring software quality through functional and non-functional testing, test automation, and system validation. My role evolved from executing tests to leading integration and UAT efforts, ensuring robust system performance and end-user satisfaction. ### **Tester Responsibilities (2010 – 2014):** • Designed and executed functional and non-functional testing, ensuring system security, reliability, and compatibility. • Established and managed virtual test environments, configuring Windows Server instances and security policies. • Performed security testing with TLS/SSL certificates and SSO authentication using ADFS. • Conducted Load and Stress Testing to ensure the performance capabilities of HR software in client environments. • Performed Cross-Browser and Accessibility Testing to ensure an optimal user experience across platforms. • Reproduced and resolved software anomalies, improving system stability. • Worked in an Agile environment, using Microsoft Teams Foundation, Visual Studio Code and Visual Basic for test automation. ### **Quality Assurance Engineer Responsibilities (2014 – 2019):** • Developed and maintained test cases and test suites in Jira, ensuring full scenario coverage. • Executed Unit, System, UAT, and Non-Regression tests to ensure system stability during updates. • Verified and reproduced bugs and anomalies, facilitating issue resolution with developers. • Validated patches in test environments, ensuring seamless software deployment. • Performed API testing using SoapUI, verifying data integrity during web service migrations. • Prepared test reports and documentation to inform stakeholders about progress and performance.

**Environment:** Windows XP/7, Windows Server 2003/2008, Eclipse, Java, JavaScript, HTML, Toad, FileZilla, Microsoft Explorer, Firefox, Office 2003. Contributed with Teralco Agile development team to execute functional and regression testing, ensuring software quality and stability. • Designed and executed manual test cases to validate new functionalities, ensuring system integrity. • Identified and reproduced defects, providing detailed reports for issue resolution. • Validated patches and updates before deployment, ensuring smooth system integration. • Maintained test databases to facilitate structured test execution and analysis. • Drafted technical documentation and user procedures to improve software adoption.

Starting as Deputy Manager, I quickly advanced to the Manager position, leading a dynamic team of seven professionals. The store served not only as a retail hub for software sales but also as a technology showcase for the multi-award-winning SoftWide® Platform, a cutting-edge solution for digital product distribution and customer engagement. Key Responsibilities: • Driving revenue growth and optimizing sales performance, successfully increasing weekly sales by 400%, from £400 to £2000. • Overseeing daily operations, managing the shop floor, and leading a high-performing team. • Elevating customer engagement through innovative digital solutions.

Starting as a Sales Assistant, I developed deep expertise in selling electronic products and insurance services within the dynamic, high-traffic retail environment of Heathrow Airport. Through product knowledge and outstanding customer engagement, I consistently exceeded sales targets, earning a reputation for excellence in customer service and retention. Quickly progressing to a Strategic Leadership role, I took on managerial responsibilities, driving exceptional sales performance while prioritizing the quality of transactions. I collaborated closely with DM2 to oversee multiple teams, maintaining top-tier sales results and fostering a culture of excellence. Key Achievements & Responsibilities: • Spearheaded a sales-driven culture, emphasizing quality transactions that enhanced customer satisfaction and loyalty. • Managed and inspired multiple teams, ensuring high standards in sales performance and customer service. • Led teams to rank among the top auxiliary sellers for electronic product insurance, balancing both quality and quantity in sales. • Developed innovative sales strategies, training programs, and performance tracking systems to optimize team efficiency. • Oversaw store operations, including opening/closing procedures, task delegation, hiring, and performance reviews. • Maintained high standards in shop-floor organization and replenishment to ensure seamless customer experiences.