Battery Systems Thermal Engineer

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.

Responsibilities

• Lead thermal battery systems and sub-systems design, development, and delivery to meet project timelines

• Decompose battery system requirements into thermal sub-system and component-level requirements

• Develop and support verification, virtual verification (simulation), validation, and integration strategies, including testing from prototype to homologation for the complete thermal system

• Review thermal and hydraulic simulation reports and propose corrective or improvement actions to the development team

• Support the derivation of the technical and functional safety concept for the thermal system

• Conduct thermal system and design reviews, DFMEA, and risk analyses

• Review technical drawings and production documentation for thermal systems and components

• Conduct root cause analysis at thermal system and component levels

• Provide support to assembly and testing teams during thermal product operations

• Contribute to ongoing thermal product and process improvement

• Ensure thermal system product conformity to applicable standards and industry best practices

• Drive product safety through analytical and risk-assessed approaches

• Lead technically focused meetings related to thermal systems

Requirements

• Bachelor’s degree in Electrical, Mechanical, Automotive, Aerospace, or Systems Engineering

• Minimum of 3 years’ experience in automotive systems or industrial experience in a complex multidisciplinary product environment

• Experience with HV battery systems and knowledge of lithium-based battery cell system design

• Understanding of Systems / Requirements Engineering and related tools (e.g., IBM DOORS, JAMA)

• Familiarity with PLM systems (3Dx, TeamCentre, Creo) and knowledge of the project life cycle from R&D to series production

• Experience in product design, manufacturing processes, and engineering best practices

• Knowledge of safe working practices for HV systems, applicable legislation, and homologation standards

• Proficiency in Microsoft Office tools

• Strong command of English (written and spoken)

Considered as an Advantage

• Extensive experience in systems engineering, research, and development

• Ability to challenge experts, consultants, and senior stakeholders using a systematic, first-principles approach

• Solid knowledge of battery cell management

• Proven experience in thermal system design and management

• Understanding of electro-mechanical components and their integration

• Familiarity with automotive standards and regulatory frameworks

• Prior experience in the automotive industry

• Experience as a system owner of thermal components within HV battery systems

What we are like and what we offer

• Working on exciting projects in a high-performance environment pushing the limits, moving science forward while working with the global automotive manufacturers on developing the latest automotive technology.
• Flexible working hours – align with your manager and work on your own schedule.
• Educational budget and internal education programs – at Rimac, we believe in the importance of continuous learning. We provide a range of educational programs and opportunities to support your growth, and we actively encourage you to expand your knowledge and skills. Embrace the chance to learn more and never stop your pursuit of knowledge at Rimac.
• Transportation support – we provide support by covering the costs of local public transportation. Rest assured, we've got you covered when it comes to commuting, ensuring your ease and convenience as a valued member of our team.
• Health-related benefits – taking care of your physical wellbeing is of great importance and all our team members have additional and supplementary health insurance coverage, with an additional budget for yearly general physical examinations and multiple discounts in various privately held clinics.
• Multisport card – being a Rimac employee and a valued team member makes you eligible for Multisport membership with discounted prices for enjoying various sport activities or fitness programs in sporting venues all over Croatia.
• Mental health support – physical and mental wellbeing are our priorities when thinking about our most valuable asset – people. Prioritizing mental health for overall well-being covered by the company is one of the most important steps in having a productive and satisfied community.
• Family-oriented perks – we pride ourselves in being a family friendly environment and raising the new generation of STEM oriented brainiacs, so small gestures of love for your loved ones with kindergarten support and various kids’ activities are what we’re all about.   
• Pet-friendly workplace – we are always on the lookout for new Pawject Managers! You’ll be able to bring your pet to work, receive a pet necklace and have a professional photoshoot of your pet for its ID card (and lots of discounts for pet shops and clinics).
• Relaxation zones, fresh fruits, and healthy snacks – recharge your batteries with daily fresh fruits and vegetables delivered to your workplace from Croatia’s family-owned business.
• Shopping, travel, and entertainment discounts – as a growing company, we try to negotiate the best conditions and all for your own convenience. Each year we grow our network of partners so you can experience new things and save money.
• Possibility of remote work – even though we love teamwork and try to be more connected to further strengthen our bond between departments and team members, feel free to take remote work day when needed as per your agreement with your manager.