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Sustainability Manager

Mace • Spain • Added on May 10, 2026
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You’d work for Mace Consult in Spain on the decarbonisation of real estate portfolios — building Scope 1, 2, and 3 carbon footprints, developing net-zero roadmaps for existing assets, running ESG due diligence on acquisitions, and designing energy retrofit and electrification strategies aligned with CRREM and the EU Taxonomy.

The work has a direct financial edge: stranded asset risk is real for investors who get the transition wrong, and your analysis is what informs multi-million euro capital allocation decisions. This is sustainability consulting where the output lands on an investment committee’s desk.

This suits a mid-level sustainability professional or energy engineer with hands-on carbon modelling experience, comfortable with quantitative tools and building physics, who wants to work with real estate investors rather than in-house at a corporate.

Job-FAQs

What are the main missions and responsibilities of this role?

The Sustainability Manager will lead the technical and strategic transition toward Net Zero Carbon for diverse real estate portfolios. This involves developing long-term decarbonization roadmaps, calculating Scopes 1, 2, and 3 carbon footprints according to ISO 14064, and conducting ESG Due Diligence for new acquisitions and existing assets. Beyond calculation, the role focuses on actionable engineering solutions including energy retrofit strategies, renewable energy integration, and electrification of systems. You will be responsible for aligning client assets with international frameworks like CRREM and the EU Taxonomy to avoid stranded asset risks and ensure regulatory compliance.

Key learning opportunities for this job

Working at Mace, particularly within the newly restructured Mace Consult, offers exposure to high-level carbon modeling tools and specialized software such as DesignBuilder or IES. You will gain deep expertise in the CRREM methodology and the financial implications of climate transition risks, which are currently at the forefront of real estate investment strategy. Additionally, you will refine your knowledge of green financing mechanisms and energy saving certificates. The role provides a vantage point into how global investors like Goldman Sachs prioritize ESG, offering a masterclass in the intersection of sustainable engineering and corporate finance.

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

The ideal candidate is a profile with a strong engineering background (Industrial or Energy) combined with a consultant's strategic mindset. You must possess proven experience in carbon footprinting and the GHG Protocol, but also a practical understanding of building systems like aerothermal or photovoltaic technologies. Command of energy simulation tools and familiarity with ESG reporting standards (GRI, GRESB, or SBTi) is essential. Soft skills are equally important, as you must be able to translate complex technical energy data into business-ready insights for C-suite stakeholders and asset managers.

Advice to stand out and make a successful application

To stand out, move beyond general sustainability talk and emphasize your technical rigor in energy modeling. Showcase a portfolio of specific projects where your decarbonization plan led to measurable CAPEX/OPEX optimization, as Mace Consult thrives on delivering tangible value to clients. Given the recent investment from Goldman Sachs, demonstrating an understanding of fiduciary duty and climate risk will be highly valuable. Mention your familiarity with the Spanish regulatory landscape (HULC, building codes) combined with international certifications like BREEAM or LEED to show you are ready for both local and global mandates.

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

This role is heavily weighted toward environmental decarbonization and energy performance within the Real Estate sector. It specifically targets the 'E' in ESG through technical interventions, focusing on Scope 3 emissions reduction which is often the largest challenge for property consultants. Expected focus areas include transitional risk management through CRREM and the alignment of portfolios with the EU Taxonomy. You will likely work on projects that seek to turn physical climate risks into investment opportunities through deep energy retrofits.

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

One primary challenge could be the data fragmentation across large real estate portfolios, making accurate Scope 3 calculations difficult. You might also face resistance when trying to align short-term financial goals of clients with the high upfront costs required for deep energy retrofits and Net Zero transitions. Additionally, navigating the rapidly changing regulatory environment in Spain and the EU requires constant upskilling to ensure that client assets do not become 'stranded' according to the latest CRREM pathways.

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

A typical day might begin with analyzing building energy simulations to identify efficiency gaps, followed by a meeting with a client to discuss a long-term electrification roadmap for their portfolio. You might spend your afternoon performing an ESG Due Diligence for a new property acquisition, evaluating its carbon intensity. The day would likely involve collaboration with project managers and external auditors, ensuring that technical energy data is accurately reflected in the final sustainability report or investment memorandum.

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

As Mace Consult operates as an independent business backed by Goldman Sachs Alternatives, there is significant potential for leadership roles within the growing sustainability department. You could transition into Global Lead roles or specialize in Green Finance and Sustainable Fund Management. The exposure to high-profile international projects and the ability to influence large-scale real estate strategies provides a fast track to becoming a recognized expert in the Net Zero transition of the built environment.

The main stakeholders you might be interacting with

You will frequently interact with Real Estate Asset Managers and Investment Funds who require strategic guidance on their portfolios. Internally, you will collaborate with Technical Directors and Project Managers at Mace to integrate sustainability into construction and consultancy workflows. External stakeholders will include Energy Auditors, Regulatory Bodies, and Certification Providers (LEED/BREEAM), as well as financial institutions looking for assurance on green financing compliance.

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