Legrand Slovenija
Lead Cooling Engineer

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Overall Job Purpose
You will be working in a growing R&D Development team in the Centre of Excellence Cooling Division for USystems, developing innovative cooling technologies for the ever-expanding datacentre industry.
The Lead Cooling Engineer will be responsible for leading the thermal and fluid flow engineering activities associated with the development of new cooling products, supporting the Principal Cooling Engineer in delivering innovative and commercially viable solutions.
The role will focus on the application of Computational Fluid Dynamics (CFD), thermal analysis, laboratory testing and validation to support the design and development of rear door heat exchangers (RDHx), coolant distribution units (CDUs), liquid cooling systems and associated cooling technologies.
The successful candidate will combine strong theoretical engineering knowledge with practical product development experience to deliver robust, manufacturable and compliant cooling solutions.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
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- Contribute to the USystems mission of developing innovative, technology-focused cooling product designs.
- Lead CFD modelling and simulation activities to support new product development and product optimisation.
- Research, evaluate and implement new cooling technologies and methodologies.
- Support the design, test and conformity process to ensure products meet performance, quality and compliance requirements.
- Develop and maintain thermal, hydraulic and fluid flow simulation models.
- Correlate simulation results with laboratory testing to improve product performance and modelling accuracy.
- Provide cooling engineering expertise throughout the product development lifecycle.
- Support the continuous development of modelling capabilities, design tools and engineering best practices within the R&D team.
- Promote the company's professionalism, technical excellence and ethical standards.


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At Legrand, we are a global specialist in electrical and digital building infrastructures. Every day, our 38,000+ employees across nearly 90 countries work to improve lives by transforming the spaces where people live, work, and connect.
Driven by innovation, simplicity, and sustainability, we design high-value solutions that make buildings smarter, more efficient, and more comfortable. From connected technologies to energy-efficient systems, our products and services empower millions of users around the world.
Our strength lies in our diversity—of people, expertise, and brands. Whether you join Legrand or one of its brands, you’ll be part of a collaborative and forward-thinking environment where your ideas matter and your growth is supported.
Together, we’re building the future of buildings. Come and make an impact with us.
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