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Sustainability Manager

Multiplex • United Kingdom • Added on Jul 23, 2026
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This role places you at the heart of London’s construction activity, where you will own the delivery of environmental performance on high-profile urban developments. You will guide project teams through the entire lifecycle—from initial design to final completion—ensuring that sustainability isn’t just a checklist but a core element of the building’s fabric. Your daily focus will involve managing complex certifications, overseeing waste redirection, and ensuring rigorous environmental compliance.

Working for a premier firm like Multiplex means your work has a permanent visible impact on a global city’s skyline. This position is vital because it bridges the gap between ambitious corporate net-zero targets and the real-world grit of construction sites. By embedding decarbonization and resource efficiency into procurement and site operations, you transform the industry’s footprint and contribute to a more circular economy in the built environment.

This suits someone who possesses a deep familiarity with the UK construction landscape and the tenacity to influence site-based teams. You should be equally comfortable navigating technical BREEAM requirements as you are collaborating with subcontractors to solve practical resource challenges.

Job FAQs

What are the main missions and responsibilities of this role?

As a Sustainability Manager, you will serve as the primary architect for environmental outcomes on-site. Your main mission is to translate high-level ESG commitments into tangible project deliverables, ensuring every stage of construction aligns with strict sustainability benchmarks. This involves overseeing waste management strategies, monitoring resource efficiency, and maintaining rigorous environmental compliance across the supply chain. You will be responsible for the end-to-end management of green building certifications. This includes coordinating with consultants and subcontractors to gather evidence, perform audits, and ensure that the final structure meets the required BREEAM, WELL, or NABERS standards. You also act as a technical advisor, helping procurement and design teams select materials that lower the embodied carbon of the project.

Key learning opportunities for this job

This role offers an exceptional platform to gain expertise in the latest sustainable building standards currently transforming the UK market. You will likely deepen your technical knowledge of embodied carbon calculations and the circular economy, moving beyond theoretical concepts to practical, large-scale application in the construction sector. Furthermore, you will gain exposure to integrated management systems, specifically ISO 14001, and navigate the complexities of UK environmental legislation within a top-tier corporate environment. The role provides a rare opportunity to see how international sustainability frameworks are tailored to high-density urban environments and iconic architectural projects.

How does the ideal candidate look like (experience, skills)?

The ideal candidate brings a robust background in the UK construction or engineering sectors, equipped with a practical understanding of how building sites operate. You should possess strong technical proficiency in BREEAM certification processes, while exposure to emerging frameworks like WELL or LEED will set you apart from other applicants. Beyond technical skills, the role requires a persuasive communicator who can build trust with diverse stakeholders, from site workers to corporate executives. You must be detail-oriented enough to manage compliance documentation but strategic enough to identify opportunities for innovation in resource management and supply chain engagement.

Advice to stand out and make a successful application

To stand out, move beyond listing certifications and focus your application on measurable outcomes you have achieved on past construction projects. Multiplex values 'grit' and collaboration, so highlight specific instances where you successfully influenced a reluctant team or solved a complex environmental compliance issue under tight deadlines. Tailor your CV to reflect an understanding of the UK regulatory landscape and specific certifications like BREEAM. Demonstrating that you understand the intersection of commercial construction reality and environmental goals will prove you are ready for the fast-paced nature of London-based projects.

What aspects of the company's sustainability is this role likely to focus on?

Your focus will be heavily weighted toward the decarbonization of the built environment and resource circularity. By managing waste and optimizing resource use, you directly impact the company’s goal to 'construct a better future.' This includes a strong emphasis on reducing operational carbon and ensuring projects contribute positively to the local urban ecosystem. Governance and compliance also play a major role, as you will ensure that every project adheres to ISO 14001 standards and local legal requirements. You will be the bridge between corporate sustainability strategy and the physical execution of projects, making ESG goals a reality on the ground.

What are the main challenges someone in this role might face?

One of the primary challenges is managing the competing priorities of traditional construction schedules, budgets, and ambitious sustainability targets. You may encounter resistance when implementing new processes on-site, requiring a high level of emotional intelligence and negotiation skills to ensure sustainability remains a priority for all subcontractors. Additionally, the rigorous documentation required for international certifications like BREEAM can be demanding. Staying ahead of shifting UK legislation and supply chain disruptions while maintaining strict compliance across multiple workstreams will require excellent organizational skills and a proactive approach to problem-solving.

How could a typical day look like for someone in this position?

A typical day might begin with a site walk to inspect waste management practices and ensure environmental controls are in place. You would likely spend the mid-morning in meetings with project managers and architects, reviewing material choices or discussing the progress of BREEAM credits to keep the project on track for its target rating. Afternoons might be dedicated to reviewing supply chain data or preparing reports for clients and regulatory bodies. You will frequently interact with subcontractors to provide guidance on environmental requirements, ensuring that every person on the project understands their role in delivering a sustainable outcome.

What are the opportunities for professional growth and development in this role?

Growth at Multiplex is often tied to the scale and complexity of the projects you manage. Successful delivery of iconic London developments can lead to senior regional roles or global sustainability positions within the organization. The company’s focus on professional development through their Learning Academy suggests a clear path for internal progression. You may also have the opportunity to lead high-visibility innovation projects, such as pioneering new low-carbon materials or digital tracking tools for sustainability. This places you at the forefront of the industry’s transition, making you a subject matter expert in the future of green construction.

The main stakeholders you might be interacting with

You will sit at the crossroads of several key groups, primarily collaborating with project managers and site engineers to integrate sustainability into daily operations. Externally, you will be the main point of contact for sustainability consultants, certification auditors, and regulatory inspectors who oversee site compliance. You will also interact with clients and their consultants, presenting progress on sustainability goals and ensuring the final build meets their ESG expectations. Building strong relationships with subcontractors and suppliers is equally vital, as their performance is the key to achieving the project's overall environmental objectives.

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