Senior Systems Engineer

Senior Systems Engineer Location: Windhof, LuxembourgApplication deadline: 28 January 2026Reference number: 0404 We are looking for a Senior Systems Engineer to join our team at our premises in Windhof, Luxembourg. You will be responsible for the end‑to‑end INT – UQKD System Architecture, ensuring that the design and engineering best practices are embedded in the implementation as the system evolves, while also contributing to the design and analysis of future architectural elements. Responsibilities Oversee and continuously maintain the system architecture and its supporting documentation. Lead the design of complex telecom systems, with a strong focus on interface definition and security aspects. Maintain a holistic view of the system and ensure the successful integration of all subsystems.Coordinate with partners and ensure the successful integration of space and ground segment subsystems. Lead local engineering project teams to ensure efficient collaboration and the delivery of a high‑quality system. Provide guidance in system design, development and verification. Provide senior guidance to the technical teams contributing to similar projects. Qualifications Mandatory Skills and Experience A Master’s degree in Information Technology Systems, Engineering, Software Engineering or a related field, such as Telecommunications or a relevant scientific discipline. At least 5 years of experience as a Systems Engineer, preferably in an international environment. Experience in Systems Engineering documentation, working with technical teams to produce and maintain specifications, design documents, validation materials and other lifecycle documentation. Demonstrated Systems Engineering experience within aerospace or defence environments, managing complex, interconnected systems under diverse communication protocols and restrictive standards. Team leadership experience, coordinating external teams and managing local workloads to ensure successful subsystem integration. Willing to undergo the appropriate security clearance process. Fluent in English, both written and spoken. Highly Desired Skills and Experience Experience with Model Based Systems Engineering (MBSE). Experience in the space domain, preferably with ESA projects, including satellite communications, ground stations, mission operations centers, link budgets and mission planning. Experience in security assessment or secure operation of ITS systems, with knowledge of Secure Software Development Life Cycle practices. Experience in executing projects whilst following international standards. Possession of NATO and/or EU security clearances is considered an advantage. Benefits Opportunity to work within leading space organisations across Europe. Forward‑thinking company that values integrity, inspiration, care and collaboration. Benefits include competitive remuneration packages, unique career opportunities, training and development programmes, flexible relocation support. We are proud to be an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. We therefore welcome applications from all candidates, irrespective of gender, sexual orientation, ethnicity, religious beliefs, age, disability or other characteristics. As part of our commitment to providing an inclusive and barrier‑free recruitment process, we will provide reasonable adjustments and support to ensure neuro‑diverse applicants or those with a disability or long‑term condition can participate in the recruitment process. How to Apply Interested applicants should submit their CV and Cover Letter to Starion’s Recruitment team at careers@stariongroup.eu no later than 28 January 2026. Preference will be given to candidates eligible for an EU or national personal security clearance at the level of CONFIDENTIAL or above. #J-18808-Ljbffr