About us
We are a technology powerhouse that designs, engineers, and manufactures the world's most advanced automotive technology and hypercars. Bytes to bolts, Rimac is where everything happens.
Our teams develop and produce both hardware and software solutions for our flagship, record-breaking hypercar, the Nevera, as well as for other automotive manufacturers’ vehicles. Working on technology solutions for partners such as Porsche, Hyundai, Aston Martin, Koenigsegg, Automobili Pininfarina, and others, gives Rimac a unique position of a technology leader in the high-performance electric vehicle industry. The stakes are high.
As a fast-moving company, we nurture a high-performing culture. If you are interested in joining, you must be prepared for relentless learning, adapting, and embracing new technologies. We expect an easy-going person, but also self-driven, entrepreneurial, and highly independent in their work, that will enjoy rising to the challenge and have fun pushing the limits of technology.
Our expectations are high. And we can only achieve our goals with the dedication and collaboration of our exceptional team. Our ambition is to deliver and go the extra mile. We need to expand our already industry-leading team, find the best people, and lead the charge.
We are seeking a highly skilled, innovative, and experienced Drivetrain Thermal Management Development Engineer to join our team. This role focuses on the mechanical design and integration of cooling and lubrication systems for Electric Motor and Transmission systems, with an emphasis on design for manufacturability, including injection moulding. You will be responsible for calculating, sourcing, and integrating key components of the cooling system, such as oil pumps, heat exchangers, oil filters, and more. Experience with mechanical design, injection moulding processes, and thermal systems is crucial. The position requires relocation to Zagreb, Croatia.
Responsibilities
Mechanical Design of Lubrication and Cooling Systems: Lead the mechanical design of lubrication and cooling systems for BEV (Battery Electric Vehicle) transmissions and electric motors. Develop robust and efficient systems from concept through to serial production, focusing on manufacturability and cost-effective solutions.
Component Sourcing and Integration: Calculate, source, and integrate key components of the cooling system, including oil pumps, heat exchangers, oil filters, and associated components. Ensure these components are optimized for performance, cost, and reliability within the overall cooling and lubrication system.
Injection Moulding Design and Integration: Design and develop components using injection moulding techniques, ensuring designs are optimized for manufacturability, material selection, and assembly efficiency. Work closely with suppliers and manufacturing teams to ensure timely production and integration of moulded parts.
System Design & Integration: Design and integrate the lubrication and cooling systems with the Electric Motor and Transmission. Ensure that the mechanical design addresses system-level interactions, providing optimal cooling efficiency, durability, and compatibility with other drivetrain components.
Testing and Validation: Lead the testing and validation processes for cooling and lubrication systems, ensuring that components like oil pumps, heat exchangers, and oil filters meet performance, reliability, and durability standards. Perform mechanical testing to assess and verify design assumptions.
Collaborate with Cross-Functional Teams: Work closely with electrical, software, and systems engineering teams to ensure seamless integration of thermal management systems within the overall drivetrain. Coordinate with suppliers and manufacturing teams for the smooth production of components and systems.
Performance Optimization: Continuously monitor and assess the mechanical performance of cooling and lubrication systems through testing, data analysis, and feedback from real-world usage. Work to refine and optimize designs based on performance data.
Documentation and Reporting: Prepare detailed documentation, including design specifications, technical reports, validation protocols, and integration procedures. Present findings and progress updates to management and stakeholders.
Continuous Improvement: Foster a culture of continuous improvement by analysing failures, implementing corrective actions, and ensuring that thermal management solutions evolve with changing technologies, standards, and customer expectations.
Requirements
• Master’s in Mechanical Engineering, Automotive Engineering, or a related field.
• Proven experience in mechanical design, particularly in the automotive or electric vehicle industry.
• Strong experience with injection moulding design, including knowledge of materials, tooling, and processes.
• Solid understanding of cooling and lubrication systems in mechanical systems, ideally within electric motor and transmission applications.
• Strong knowledge of mechanical systems design, including material selection, assembly, and manufacturability considerations.
• Experience in product development from concept to serial production, including supplier management and validation.
• Proficiency in CAD software (CATIA V5 and 3DExperience platform)
• Strong communication skills to collaborate effectively with cross-functional teams and suppliers.
• Ability to manage multiple tasks simultaneously in a fast-paced, deadline-driven environment.
• Highly skilled, innovative, and problem-solving mindset to drive new solutions.
Preferred Qualifications
• Experience with thermal simulations (CFD, FEA) and fluid dynamics.
• Knowledge of electric vehicle (EV) architecture and energy management strategies.
• Familiarity with automotive standards and regulations related to thermal management.
What we are like and what we offer