Master’s thesis (ex-jobb) in Engineering

At Solstice Storage, we’re building the future of fossil-free industrial heat. We’re entering our pilot phase with a strong momentum, and we’re looking for ambitious engineering students who want to do their thesis on real hardware with real impact. Solstice Storage is using concentrated solar heat to charge thermal batteries made out of sand to 1000°C. Spun out of LTH we are a small, fast moving team with drive and big ambitions where we never linger on turning ideas into tests and prototypes. What you could work on

• Design and optimization of heat discharge
• Charge and discharge control systems and operations optimization/grid balancing
• Mechanical design and dimensioning of the transfer device and storage structure
• Thermal and structural simulation (CFD, FEA) validated against prototype test data
• Materials selection and thermal cycling behavior at high temperatures
• Prototype testing, instrumentation and data analysis
• Scale-up from prototype to industrial-scale design

We’ll shape the exact scope together, based on your interests and your program. Who you are You’re a master’s student in mechanical engineering, energy engineering or a related field, writing your thesis in spring 2027 (or thereabouts). You have a solid grounding in thermodynamics, heat transfer or mechanical design. You are curious, hands-on and keen to take ownership of a technical problem. Experience with CAD, simulation tools or prototype work is a plus, but motivation matters most. What we offer

• A thesis built around real hardware in an early-stage deep-tech startup
• Close collaboration with the founding team and direct influence on the design
• Access to prototype testing and validation data
• Supervision in cooperation with your university (we’re spun out of LTH and happy to work with supervisors and examiners)
• A fun, open-minded team where your ideas and energy are valued