CRB is seeking a Senior Building Sustainability Specialist with a focus on HVAC and Decarbonization to lead sustainability and decarbonization strategies for complex, high-performance buildings. This position is ideal for a mechanical engineer or HVAC-focused sustainability expert with a passion for solving the toughest challenges in energy and carbon reduction—particularly in technically demanding environments such as pharmaceutical manufacturing, laboratories, and GMP facilities.You will work alongside some of the world’s most advanced clients, many of whom have made bold sustainability and ESG commitments. These clients are actively seeking innovative strategies to decarbonize their high-tech, process-intensive campuses without compromising operational performance. This role is an opportunity to help them succeed—guiding projects that balance technical rigor, energy efficiency, resilience, and regulatory compliance.
Typical tasks and deliverables that are executed by or under the supervision of the Senior Building Sustainability Specialist include decarbonization roadmaps, developing energy reduction strategies, conducting LCCAs, Sustainability Charettes and goal setting, design and performance assessments, green building certifications, technology evaluations, water and waste reduction, and coordination with manufacturers and trade partners. Project work includes directing strategy development for all levels of planning and design, such as feasibility studies, conceptual and schematic design, design development, construction documentation, and operational transition.
This individual is a subject matter expert in energy and building decarbonization, with deep technical expertise in HVAC systems (including electrified district systems) and a strong understanding of how mechanical strategies contribute to broader sustainability goals. They collaborate closely with other sustainability specialists, as well as HVAC, electrical, plumbing, and process engineers, to support the development of integrated project strategies and the completion of energy, carbon, and systems evaluations. Their specialized knowledge, combined with broad industry experience, enables them to provide critical input from early planning through execution—ensuring that design decisions align with client goals, technical requirements, and long-term performance. In addition to mentoring staff, developing best practices, and performing quality reviews, this individual may also represent CRB externally through technical publications and presentations.Key ResponsibilitiesLead HVAC and central plant system decarbonization strategies for complex building types, with a focus on life sciences, biotech, and food manufacturing.Evaluate advanced building systems. HVAC options and district energy solutions, including heat recovery, electrification technologies, and thermal storage systems.Partner with clients to set and achieve aggressive carbon reduction goals—translating those into practical design strategies through every project phase.Acts as Project Manager including proposal development, strategy identification, man-hour planning, and project scheduling for the discipline scope of work on advanced-level projects. Supports CRB’s Seller – Doer model and performs business development activities.Conduct client facing charettes and workshops to assist in sustainability goal setting.Delivers high quality sustainability projects incorporating advanced solutions across project goals related to energy, decarbonization, water, waste, embodied carbon, material health, and others.Collaborate across multidisciplinary teams to integrate sustainability and mechanical design solutions from master planning through construction.Guide internal teams in interpreting energy modeling outputs and applying them to decision-making.Conduct system performance assessments and LCCA to support technical and business decision-making.Mentor junior team members and contribute to internal best practices for HVAC-focused sustainability solutions.Present technical strategies to clients, helping them navigate decarbonization in high-stakes, high-compliance environments.Leads advanced project sustainability programming and master planning with minimal or no support from senior leadership.
