Product Owner / Product builder Control & Connectivity

Are you ready to grow with an innovative company and play a key role in the green transition? ES Energy Save is on an exciting growth journey in the heat pump sector, with vast market potential across Europe. We are looking for a Product Owner / Product Builder for Control and Connectivity who can both hold a strategic vision and roadmap, and roll up their sleeves to be in the trenches and make it happen. This is a hybrid role. You will carry the product vision with one hand and move it forward with the other — working directly with engineers, partners, and customers to build control and connectivity technology that performs, scales, and delights. Key Responsibilities · Drive the vision and roadmap for control and connectivity, informed by customer needs, market trends, overall product strategy and roadmap, to enable cutting-edge performance, reliability, and experience. · Plan, prioritise, and execute the roadmap through milestones and backlog. · Design and implement embedded software, working hands-on in the engineering team. · Measure outcomes from end-to-end testing and long-term monitoring. · Bridging internal and external integrations and own the technical partner interface · Orchestrate an effective way of working within the engineering team and across the broader functions. Requirements · Actively uses AI tools to accelerate product work, reduce friction, and unlock scale. · 5+ years in firmware or embedded software development - you are a software engineer at heart and want to continue to contribute to the code base. · Previous experience in product management and/or in engineering leadership. · Strong technical understanding and experience of embedded systems and hardware–software integration - C/C++, Rust, microcontrollers (STM32, NXP and potentially ESP32), communication intefaces (Modbus-RTU, Modbus-TCP, Ethernet, Wifi). · A strategic thinker who thrives in fast-paced, innovation-driven environments, comfortable driving clarity and making decisions with