Junior R&D Engineer - Luxembourg

About Rotarex Since 1922, Rotarex has been the world leader in cylinder valves, pressure regulators and equipment for all gas applications. With nearly 2,000 employees worldwide, we support a wide range of industries including semiconductor, medical, automotive, food & beverage, energy, research and many others. Innovation, quality and customer satisfaction are at the heart of everything we do, making Rotarex a trusted partner for customers around the globe. Location: Lintgen, Luxembourg We are currently moving to our brand-new Industry 4.0 manufacturing site in Bissen, a state-of-the-art facility designed to provide an outstanding working environment for our employees while supporting operational excellence and innovation. Your mission As a Junior R&D Engineer, you will support the development of innovative products from the initial concept through industrialization. Working alongside experienced engineers, you will progressively build your expertise in mechanical design, prototyping, testing, validation, and industrialization, while contributing to real development projects with international exposure. Your responsibilities will include: Product design & development Support the development of new products and the continuous improvement of existing products Participate in product development projects from concept, design and prototyping through testing, validation and industrialization Create and modify 2D technical drawings and 3D CAD models Prepare designs in accordance with customer specifications, internal requirements, manufacturing constraints, supplier capabilities and company engineering standards Gather technical information including materials, dimensions, tolerances, interfaces and manufacturing requirements Assist in preparing and reviewing engineering documentation, technical drawings, specifications, prototypes and samples Perform basic engineering calculations, design reviews, tolerance analyses and technical evaluations under the guidance of senior engineers Prototyping, testing & validation Support prototype manufacturing and coordinate the availability of prototype parts and samples Participate in product testing activities including test preparation, execution support, data collection and documentation of results Assist in analyzing technical issues identified during development, testing, production or product introduction Contribute to design optimization, standardization and cost reduction initiatives Support product validation activities to ensure compliance with technical requirements and quality standards Cross-functional collaboration Work closely with Production, Quality, Purchasing, Product Management, Sales and suppliers throughout the development process Provide technical information, drawings, specifications and manufacturing requirements to internal teams and external suppliers Support supplier follow-up and prototype manufacturers when required Participate in technical meetings, design reviews and cross-functional project discussions Escalate technical risks or uncertainties to senior engineers whenever necessary Documentation & continuous improvement Maintain accurate and up-to-date technical documentation, including CAD files, drawings, specifications, calculations, test reports and project records Update technical information within SAP and other company systems where applicable Ensure proper organization of engineering documentation according to company standards Follow engineering procedures, quality standards and safety requirements Continuously develop your technical knowledge through training and participation in R&D activities Your profile Education and technical skills Bachelor's degree in Mechanical Engineering, Electromechanical Engineering, Industrial Engineering, Product Design Engineering or a related technical field Entry-level profile or first professional experience in R&D, mechanical design, manufacturing or product development Internship, apprenticeship or academic projects within an industrial environment are considered a strong advantage Good understanding of mechanical design principles Knowledge of 2D technical drawings and 3D CAD modeling Experience with Siemens NX is highly appreciated Basic knowledge of dimensioning, tolerancing, materials and manufacturing processes Ability to read and interpret technical drawings and engineering specifications Basic understanding of prototyping, testing and validation activities is an advantage Good knowledge of Microsoft Office / Microsoft 365 Knowledge of SAP or another ERP system is considered an asset Fluent English is mandatory French and/or German are considered strong assets Personal qualities Strong curiosity for engineering, product development and industrial technologies Analytical mindset with strong attention to detail Well organized and able to manage documentation and multiple assigned tasks Eager to learn and continuously develop new technical skills Team player with excellent collaboration and communication skills Comfortable working in a multicultural and cross-functional environment Proactive, adaptable and solution-oriented ✨ What makes this role unique An excellent opportunity to launch your career within an international R&D environment Hands-on involvement in the complete product development lifecycle, from concept to industrialization Exposure to advanced engineering technologies, CAD design, prototyping and laboratory testing Daily collaboration with experienced engineers and multidisciplinary teams A role combining technical learning, innovation and real industrial impact Clear opportunities to progressively take ownership of increasingly complex engineering projects What you will find at Rotarex The strength of a global industrial group combined with a family-oriented culture Real opportunities for training, development and career growth Flexible working hours (depending on the position) promoting a healthy work-life balance An attractive benefits package including additional holidays, bonuses and social benefits A new Industry 4.0 manufacturing site in Bissen, offering an ultra-modern working environment (canteens, fitness center, free parking, electric vehicle charging stations, air-conditioned facilities...) Easy access to the site Additional benefits including Sympass, preferential partnerships (banking, health insurance, mobile plans...) Company events that foster team spirit and collaboration Recruitment process 1st interview: Teams interview with HR and the Hiring Manager 2nd interview: On-site interview Only applications submitted through our official application process will be considered All applications will be treated with the strictest confidentiality A small tip: AI-generated applications often so...

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