Step into a role where your expertise shapes the future of sustainable engineering. Join Tetra Tech as a Principal Sustainable Design Consultant and lead the delivery of innovative, high-impact projects across diverse sectors-while advancing your own career in a collaborative, forward-thinking environment. Purpose & Scope of the Role As a senior member of our sustainable design team, you will lead the delivery of complex, multi-sector projects, taking ownership of key workstreams from concept through to completion. Working both independently and alongside senior leadership, you will drive sustainable outcomes, ensure commercial performance, and contribute to the continued growth of the team. This role offers the opportunity to influence design strategies, engage directly with clients, and mentor emerging talent, all within a supportive and flexible working culture. Your Impact in this Position You will play a pivotal role in delivering technically robust and commercially successful projects. From leading design workshops to shaping sustainability strategies, your work will directly influence project outcomes and client satisfaction. You will act as a trusted advisor, translating complex technical concepts into clear, actionable insights, while supporting the development of junior colleagues and contributing to innovation across the business. Core Capabilities Technical Excellence Deliver advanced energy, carbon, and thermal modelling using tools such as IES VE; Apply in-depth knowledge of Building Regulations Part L and non-domestic assessments Leadership & Mentorship Guide and develop junior team members through structured support and coaching; Lead by example in technical delivery and professional standards Client Engagement & Communication Facilitate workshops and present complex solutions with clarity and confidence; Build strong relationships with clients and stakeholders across sectors Project Ownership & Delivery Manage key workstreams to ensure delivery on time and within budget; Adapt to changing project requirements while maintaining quality outcomes Innovation & Collaboration Contribute to R&D initiatives and continuous improvement Work collaboratively across multidisciplinary teams to drive sustainable solutions Skills, Experience & Qualifications Degree qualified in a relevant discipline with 7 years' industry experience. Strong expertise in energy and carbon modelling, including dynamic simulation tools. Excellent communication skills and a proactive, self-directed approach. Experience in public sector or defence projects and SAP or HVAC modelling is advantageous. Working Environment This role is based in our City centre Leeds (preferred) or Manchester office. Occasional travel and flexibility outside standard hours may be required depending on project demands. About Tetra Tech Tetra Tech is a leading provider of consulting and engineering services working across the full project lifecycle worldwide. We have a wide range of expertise across our teams, providing a global support network with a personalised approach to client relationships to better understand where we can add value. We provide a collaborative environment that supports individual performance, innovation, and creativity. We support public and private sector clients on local, national, and international projects to deliver sustainable and resilient solutions. Our operations in the UK, Ireland, and the Netherlands include more than 6,000 employees who are Leading with Science® to solve our clients' most complex problems. In alignment with the Equality Act 2010, we will make reasonable adjustments to support candidates and employees requiring additional arrangements. This could include adaptations to work schedules, training approaches, or the physical workspace. Please inform us if you need any accommodations during the recruitment process or in your day-to-day role sustainability sustainabledesignconsultant