Ensure the quality and reliability of data driven applications where accuracy and consistency support operational decision making. At ILIAS A&D BV , part of the ILIAS Group , you work on applications that process and expose operational data across logistics, maintenance and system workflows. You focus on validating data, testing functionality and ensuring that systems behave as expected in environments where data quality matters. Meaningful Work in a Mission Driven Environment Your work supports applications used in operational environments. You ensure that data is accurate, consistent and reliable for users and systems. Complex Challenges, Clear Solutions You work with data driven applications where logic, data flows and integrations must be validated. Testing goes beyond user interfaces and includes validation of data pipelines, queries and processing logic. You analyze results, identify issues and ensure that systems meet defined requirements and quality standards. The Impact You Help Create You improve application quality, reduce risk and ensure that data driven systems perform reliably. Your work supports consistent and trustworthy outcomes. You validate data driven applications by testing functionality, data flows and system behavior. • Design, execute and maintain manual and functional test cases • Validate data using SQL queries and data analysis • Test data processes and workflows using Python • Identify, document and track defects using tools such as Jira or similar • Support test documentation and reporting • Work with development teams to resolve issues and improve quality • Contribute to structured testing processes and continuous improvement Support Core Defense Capabilities • Fleet Management through validated data and system behavior • Expeditionary Operations through reliable application performance • Total Asset Visibility through accurate data validation • MRO and Sustainment through consistent system quality What You Bring • Experience in manual and functional testing • Understanding of testing methodologies (ISTQB level or similar knowledge) • Experience with test and defect management tools such as Jira, Xray or similar • Strong SQL skills for data validation • Experience with Python for testing data processes • Familiarity with data platforms and data visualization tools • Analytical mindset and attention to detail • Strong communication skills in English • Ability to work independently and within a team Systems Thinking and Analytical Strength You understand how data, logic and system behavior connect. You analyze outcomes and ensure that applications perform consistently across scenarios. Working Across Teams and Functions You work with developers, data engineers and stakeholders. You support collaboration and ensure that quality is maintained across the development process. Grow Through Capability and Innovation You develop your expertise in testing data driven applications and work with tools and technologies that support modern data platforms. Grow in a Mission Driven Environment At ILIAS A&D BV , you contribute to applications that support operational systems and decision making. Build capability over time At ILIAS, learning is embedded in the way we work. You develop through hands on testing, collaboration with teams and exposure to complex systems. A s capability grows, so does your impact. Contribute to What Comes Next You support continuous improvement of application quality and contribute to reliable and scalable systems. Contact Ready to ensure quality in data driven applications and systems Apply directly or contact tim.van.dam@ilias-solutions.com