Technical Building Equipment Engineer (HVAC)Berlin or remote · Real Time Architecture ApplyAll3 is transforming how buildings are conceived, developed, and delivered. We combine AI-powered design with robotic prefabrication and on-site assembly to build custom architecture at the cost and speed of mass production — unlocking even the most complex sites.We're currently seeking a Technical Building Equipment Engineer (HVAC) to join our team, focused on developing high-performance heating, ventilation, and air conditioning systems for timber and hybrid construction projects. This role supports projects from early proposal stages through contract coordination, ensuring compliant, energy-efficient, and scalable HVAC solutions integrated into All3's design platform.ResponsibilitiesDeveloping HVAC concepts and system designs as projects progress from proposal phase toward contract coordination;Designing and coordinating heating, ventilation, cooling, and air distribution systems within timber and timber-hybrid building solutions;Preparing and reviewing HVAC documentation required across German planning and permitting stages;Ensuring HVAC system designs align with KfW40, DGNB, LEED, and QNG+ requirements;Collaborating with architecture, structural engineering, sustainability, and product teams to integrate HVAC requirements early in the design process;Evaluating feasibility, energy performance, and cost impacts of HVAC solutions to support project development decisions;Using Revit and Autodesk tools to model, coordinate, and validate HVAC system layouts;Supporting clients, partners, and internal teams with clear technical communication in both German and English;Driving continuous improvement of energy-efficient and sustainable HVAC strategies for All3's platform.RequirementsProfessional experience in designing modern, energy-efficient HVAC systems, ideally within timber or timber-hybrid buildings;Degree in Building Services Engineering, Mechanical Engineering, or a related field;Strong knowledge of HVAC design standards, energy performance requirements, and sustainability frameworks including KfW40, DGNB, LEED, and QNG+;Proficiency in Revit and Autodesk design tools for HVAC coordination and system development;Understanding of German planning phases (HOAI 1-5) and the documentation required at each design stage;Familiarity with low-carbon building systems, indoor climate strategies, and lifecycle performance considerations is an advantage;Ability to work in both German and English in technical and collaborative settings.ConditionsChance to be a part of a large-scale project;Team driven by impactful cause;Remote format of work;Flexible working schedule;28 days of annual leave.