About Ethos

Ethos is a collaborative team of engineers, consultants, and creative thinkers designing and delivering data centre and energy infrastructure across the world's most dynamic markets. As a multidisciplinary consultancy, we combine technical expertise, creativity, and integrated delivery to lead complex, mission-critical projects.

Built on strong relationships, clear leadership, and a can-do mindset, Ethos is entering an exciting phase of growth, expanding our capabilities and taking on increasingly high-impact projects across EMEA and beyond.

Sustainability guides how we design, collaborate, and deliver, creating innovative solutions and lasting value for our clients and communities — making Performance Made Possible.

About the Job

At Ethos, we’re leading the way in sustainable building services. As part of our continued commitment to innovation and environmental stewardship, we're seeking a passionate and experienced Senior Sustainability Consultant to join our dynamic team. 

In this role, you'll take the lead on environmental certifications, with a particular focus on LEED AP, playing a key part in shaping sustainability strategies across a diverse range of projects including commercial, residential, and data centres. You'll collaborate closely with clients, design teams, and internal stakeholders to deliver robust and forward-thinking solutions that align with sustainability best practices and legislative requirements. 

This is an exciting opportunity to influence real-world environmental outcomes while contributing to the growth and excellence of our sustainability consultancy services. 

Responsibilities:

Lead and manage sustainability certification processes (LEED, HPI, EU Taxonomy, etc.).
Deliver HPI services and provide strategic input to support its successful implementation. 
Liaise with clients, design teams, and other stakeholders to establish sustainability criteria and project goals. 
Conduct pre-assessments, credit reviews, and gap analyses for LEED, HPI, and other rating systems. 
Coordinate and compile documentation for environmental credits and certification evidence. 
Undertake Life Cycle Assessments (LCA) to inform design and material decisions. 
Support the Sustainability Directors in evolving the company’s sustainability service offering and QA/QC processes. 
Produce clear, high-quality reports and sustainability guidance for clients and internal teams. 
Attend site visits and project meetings to monitor progress and maintain alignment with project sustainability targets. 
Mentor junior team members and oversee their contributions to project deliverables.

About You

Experience & Qualifications

5+ years' experience as a sustainability consultant or in a related role.

A degree in sustainability, construction, environmental science, engineering, or a related discipline.

LEED AP (with Speciality) qualification.

Proven experience delivering third-party certification schemes (e.g. LEED, BREEAM, HPI).

Professional qualifications in:

BREEAM Assessor / AP

HPI Assessor

Experience supporting the implementation of sustainability strategies across large-scale or complex projects.

Previous experience mentoring or line-managing junior sustainability professionals.

Technical Skills

Strong technical expertise and a passion for delivering measurable change in the built environment.
Strong working knowledge of environmental assessments such as LEED, BREEAM, HPI, and EU Taxonomy.
Practical experience conducting Life Cycle Assessments (LCA).
Familiarity with net-zero carbon, operational and embodied carbon strategies.

Soft Skills

Skilled at working in collaborative, multi-disciplinary environments.

Confident in managing your own workload and supporting junior consultants.

Excellent communication and stakeholder management skills.

Comfortable engaging with clients and project teams at all stages.

Why Join Us?

Join collaborative leaders – Work alongside experienced, approachable professionals who combine technical excellence with calm, supportive leadership.
Make a real impact – Contribute to mission-critical infrastructure projects that support the digital and energy transition across EMEA and beyond.
Grow with us – As a rapidly growing consultancy, we offer opportunities to develop your skills, broaden your experience, and build your career.
Shape a more sustainable future – Sustainability isn't an initiative—it's embedded in every project, every discipline, and every decision we make.

We offer:

Flexible Fridays and a 9-day fortnight working schedule — enjoy every second Friday off to maintain work–life balance.
A culture that values flexibility, learning, and teamwork, with clear progression pathways and support toward professional accreditation.
Opportunities to work alongside some of the most experienced engineers in the industry, within a forward-thinking, technology-driven consultancy.

Benefits:

Flexible working times
20 Days holidays up to 25 days
Pension Scheme
Refer a Friend scheme
Gym / Fitness membership Allowance
Subsidised Health Insurance Allowance
Healthcare check-ups and flu vaccinations
Working travel out-of-pocket expenses
Travel tax scheme or bike-to-work scheme
Regular training/mentoring / further college support
Support for Chartership
A Professional Subscription Fee paid by the company
Paid Statutory Leaves
Heavily subsidised social committee

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Senior Sustainability Consultant (LEED AP)