Senior Sustainability Advisor

KEO International Consultants; Lisboa; On-site; EUR 60,000 - 80,000; Full time

Benefits offered by this job

Hybrid working arrangements

Individual athletic sponsorship

Study assistance sponsorship

Employee referral rewards

Job summary

A leading sustainability consultancy in Lisbon is seeking a Senior Sustainability Advisor with over 8 years of experience in sustainability. You will lead projects focused on ESG strategy and climate transition initiatives while ensuring high-quality service delivery. The ideal candidate holds a Bachelor's Degree in Engineering or Science and possesses strong analytical and communication skills. Knowledge of EU/UK regulations and the ability to engage effectively with stakeholders are essential. The position offers a hybrid working arrangement with competitive benefits.

Qualifications

• 8+ years of relevant experience in Sustainability.
• Advanced knowledge of EU/UK regulations.
• Ability to present complex ESG and climate concepts clearly.

Responsibilities

• Lead end-to-end delivery of sustainability advisory projects.
• Act as primary client contact, ensuring high-quality service.
• Translate client requirements into clear scopes and methodologies.
• Support business development activities and client engagement.
• Deliver technical presentations and workshops to clients.
• Provide guidance and mentoring to junior team members.

Skills

Sustainability experience

ESG strategy

Climate transition

Decarbonisation initiatives

Strong communication skills

Analytical skills

Stakeholder engagement

Spanish (working knowledge)

Education

Bachelor's Degree in Engineering / Science or Sustainability

Job description

KEO is a creative enterprise, where innovation is a way of life. We are uniquely resourced with end-to-end services to take clients from inspiration – through conceptualization – to realization of planning, design or project delivery in the built and natural environments. For over 60 years we’ve led with vision, contributing to many of the world’s most ambitious projects, iconic places, remarkable experiences and prosperous communities.

As a highly integrated and agile AEP/PMCM firm, KEO is recognized by ENR as one of the Top 225 International Design Firms and one of the Top 20 International PM/CM Firms. We are also ranked by World Architecture as the 51st largest global architecture firm and the #1 Firm in the Middle East Region in their 2025 WA100 Survey.

We invite you to join us. Why?

When you join KEO, you’ll discover more than just a job – you’ll find a supportive environment that fosters your professional development through internal global mobility and career development and does so within a culture that supports company-wide health and well-being through on-demand counselling services and regular workplace clinics. You will be invited to celebrate community events such as sports days, fun-runs, in-house sports teams and beach clean ups. In addition to your competitive package and benefits you will have access to a suite of policies that include hybrid working arrangements, individual athletic sponsorship, study assistance sponsorship, employee referral rewards.

Responsibilities

Our newest opportunity is for a talented Senior Sustainability Advisor to join our Sustainability Consultancy practice, based in Lisbon or Porto, Portugal. We are also flexible to have this position based in UK, Ireland or Spain.

The Senior Sustainability Advisor plays a key role in delivering sustainability advisory services across priority markets, with a primary focus on ESG strategy, climate transition, and decarbonisation initiatives. The role may also contribute, to a limited extent, to projects related to sustainable finance, climate risk and resilience, and assurance.

This is a delivery-focused position responsible for leading projects end-to-end, building strong client relationships, and identifying opportunities for repeat and expanded work. The role requires confident client engagement, contribution to business development activities, and oversight of project teams to consistently deliver practical, value-driven ESG and climate solutions.

We envisage success in this role to include:

• Leading the end-to-end delivery of sustainability advisory projects, ensuring high-quality technical outputs and alignment with client objectives.
• Acting as the primary day-to-day client contact, building trusted relationships and ensuring responsive, high-quality service delivery.
• Translating client requirements into clear scopes, methodologies, and workplans that deliver measurable ESG and decarbonisation outcomes.
• Supporting business development activities, including client engagement, industry events, and identifying opportunities for repeat or expanded work.
• Contributing to the preparation of technical and commercial proposals, including methodology development, resourcing plans, and fee estimates.
• Delivering technical presentations, workshops, and project updates to clients and key stakeholders.
• Maintaining strong knowledge of relevant ESG, climate, and decarbonisation frameworks, regulations, and industry best practices.
• Overseeing the preparation of technical analyses, reports, and client deliverables, ensuring compliance with internal quality standards.
• Providing guidance and mentoring to junior team members, supporting their development and effective project delivery.
• Monitoring project performance including progress, resourcing, financials, and risks, and reporting regularly to senior leadership.

Qualifications

To be successful in this dynamic opportunity, we envision that your career journey to date will include 8+ years of relevant experience in Sustainability partnered with a Bachelor’s Degree level qualification in Engineering / Science or Sustainability.

• Advance Knowledge of EU/UK regulations
• Strong written and verbal communication skills, with the ability to present complex ESG and climate concepts clearly.
• Excellent analytical and problem-solving skills, with experience developing strategic sustainability solutions.
• Ability to interpret complex business and technical documents, including RFPs and client requirements.
• Confident presentation and stakeholder engagement skills, effectively communicating with clients and senior leadership.
• Ability to influence and collaborate with diverse stakeholders to achieve project objectives.
• Spanish (working knowledge) will be advantageous.

KEO’s performance is founded upon integrity, results, innovation, safety, and our people. We embrace diversity and recognise its’ contribution to client success wherever we work.

We are excited to hear how you can partner with our award-winning team and treat all expressions of interest confidentially.