10% of Europe’s CO₂ emissions are caused by residential heating, and energy bills are out of control. Aira is here to change that.With our intelligent Aira Heat Pump at the heart, we’re making the switch to clean energy-tech easier and more affordable. Helping Europe turn off gas and slashing energy costs one home at a time.Founded in 2022 and with 1200+ employees and counting, Aira is driving the clean energy revolution by providing homes with modern clean energy-tech solutions such as solar power, battery storage solutions, and heat pumps. With a state-of-the-art production facility in Poland, and HQ in Stockholm, Sweden, and hubs across the UK, Germany and Italy, Aira is well on track to install clean energy-tech into 5 million homes by 2034.About the role We are now looking for a Mechanical Design Engineer to join us on our journey to shape the future of clean energy. In this role, you won't just design – you’ll help drive innovation at the core of Aira’s next-generation heat pump technology. As part of our fast-scaling team, you’ll influence how we work, accelerate product development, and bring bold ideas to life. Your contributions will directly impact both our team’s growth and the products we create – products that will transform how people heat and power their homes. By joining us, you’ll play an essential role in our mission to make sustainable living accessible to millions and create real, positive change for the planet.What you’ll be doingAs a Mechanical Design Engineer, you will be at the heart of developing the next generation of Aira’s intelligent heat pumps and home energy systems. Your work will span the full development cycle – from concept to detailed design, testing, verification, and preparation for manufacturing – giving you the opportunity to mak…