Help us make a big green dent in the universe. We're on a mission to drive the global renewable energy revolution, and we need loads more people to help us make our vision a reality. At Octopus Energy, we're on a mission to revolutionise the energy industry. We believe energy should be affordable, green, and easy for everyone. As a rapidly growing renewable energy supplier, we're looking for talented individuals to join our dynamic team. If you're passionate about sustainability, innovation, and making a positive impact, we'd love to hear from you. We are seeking a passionate field application engineer to join our Product Engineering team at Octopus Energy. As a Field Application Engineer, you will play a crucial role in being the technical interface between the R&D Design teams and the field installation and operations teams. What you will do: Be the main interface between the product design team and the field installation teams Identify areas for improvement in all aspects of the system from design to manufacturing, installation and processes Provide technical design advice and guidance to the field design teams Work closely with the support, field and the operations teams, provide day to day support to all heat pump installs Actively provide customer support as required Continuously monitor the performance data (e.g. COP/SCOP) collected for every install, debug issues, maintain the issue log, and advise improvements Maintain the spares list and update as a new product is introduced Travel to customer sites as required, as well as to Portadown in Belfast to work closely with the R&D and the manufacturing teams Contribute to the training of the support and installation teams as required Be the owner of technical documentations for installers, customers, logistics Present technical solutions to the design team Analyse warranty returns and interface with suppliers on technical discussions in finding the route cause What you'll need Degree in mechanical engineering or a similar discipline 5 years field application experience in heat pumps, refrigeration products and solutions Understanding of heat pump design and HVAC systems Deep knowledge for heat pump components (e.g compressors, inverters, fans, evaporators, condensers), thermodynamics and refrigeration circuits, power electronics and hydraulic system design Understanding of standard compliance, regulations and legislations relevant to heat pump design and residential installations (MCS, F-gas, relevant EN specifications) Experience in retrofit and new build heat pump installs Appreciation of smart electronic control systems relevant to heat pump system design If this sounds like you then we'd love to hear from you. Are you ready for a career with us? We want to ensure you have all the tools and environment you need to unleash your potential. Need any specific accommodations? Whether you require specific accommodations or have a unique preference, let us know, and we'll do what we can to customise your interview process for comfort and maximum magic! Studies have shown that some groups of people, like women, are less likely to apply to a role unless they meet 100% of the job requirements. Whoever you are, if you like one of our jobs, we encourage you to apply as you might just be the candidate we hire. Across Octopus, we're looking for genuinely decent people who are honest and empathetic. Our people are our strongest asset and the unique skills and perspectives people bring to the team are the driving force of our success. As an equal opportunity employer, we do not discriminate on the basis of any protected attribute. Our commitment is to provide equal opportunities, an inclusive work environment, and fairness for everyone. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.