Sustainability Manager

THE ROLE

As a Sustainability Manager focusing on client relationships, you'll lead client engagements, manage major accounts and complex projects within the financial industry. You'll play a key role in growing business by cultivating strategic partnerships, identifying new opportunities, securing new business and co-creating solutions aligned with client needs. You will contribute significantly to the company's revenue growth and strengthen our market presence in the sector.

You'll craft and implement account strategies that reflect client priorities and sustainability goals, working closely with internal experts to ensure quality and consistency across delivery. You'll collaborate with experienced consultants, and junior colleagues to deliver impactful work — primarily within your sector, while occasionally contributing to projects across other areas. In doing so, you'll continue building your consulting and relationship management skills in a collaborative, purpose-driven environment.

You'll also mentor junior colleagues and may progressively take on line management responsibilities to support their growth and development.

WHY YOU'LL LOVE QUANTIS

Quantis, a BCG company, is a leading sustainability consultancy tackling the world's most pressing environmental challenges. For nearly two decades, our expert team has partnered with organizations across the globe to transform industries and shape an economy that thrives in harmony with nature. We guide companies from business as usual to business at its best by uniting the latest science with strategic insights, helping them reduce impacts, implement solutions, and operate within planetary boundaries.

United by a common purpose, our 300+ professionals embody a unique, collaborative culture that we call the Quantis Spirit. We are innovative. We are impact-oriented. We are science-driven. We are Quantis.

Learn more about Quantis and our mission.

ARE YOU READY TO LEAD SUSTAINABILITY PROJECTS AND GUIDE TEAMS ?

· You're eager to apply your sustainability experience, business development, client relationship and consulting capabilities to our mission of aligning businesses with planetary boundaries.

· You have 4-8+ years of work experience relevant to the role, with exposure to sustainability and/or consulting.

· You're actively shaping your long-term path as a business development professional and feel confident to manage accounts within the financial industry.

· You have a good understanding of key challenges in the financial industry.

· You have proven experience in project management.

· You have solid knowledge of Excel and PowerPoint.

· You bring a Master's degree or equivalent experience that equips you to guide companies to understand and design transformative and science-based strategy (Environmental Science, Engineering, Business, Economics...).

· Whatever your background, you're intellectually curious, have a science-based mindset, and motivated to learn and grow.

· You're motivated for teamwork and can coach, teach and mentor team members with your knowledge and skills.

· You're confident using generative AI tools, while maintaining a critical and thoughtful mindset.

· You communicate effectively in fluent English and French.

WHAT YOU MIGHT ALSO BRING TO THE ROLE

· Additional knowledge in further corporate sustainability topics and/or sectors other than your specific sector.

· Knowledge of Life Cycle Assessment (LCA) and Footprinting.

· You have a good knowledge of sustainability frameworks relevant to the financial industry.

WHEN YOU MIGHT BE READY FOR THE NEXT STEP

As you develop and manage projects, you'll be ready to lead large teams to deliver complex projects and to own senior client relationships, being the primary contact and trusted advisor for clients. Your next step will be Sustainability Principal, where you'll drive business development at a strategic level across your sector.

SOME OTHER DETAILS TO CONSIDER

· Contract: Permanent

· Location: Paris office, 15 rue de Cléry 75002 Paris. You might be expected to work at the client's office and/or to travel there at times.

· Optimal start date: Q3 2026

· Punctual collaboration with other Quantis branches via web-conference

· Ability to travel occasionally

Unlocking the Potential of All Quantisians

At Quantis, Unlocking Potential means empowering our employees to thrive, enabling them to drive our mission and manifesto forward—creating meaningful impact for people and the planet.

We aim to achieve this by nurturing a culture rooted in collective action, and shared purpose, where diversity is cherished, inclusion is lived, mental wellbeing is supported, and opportunities are open to all.

This extends to our clients, their clients, and their entire value chain as sustainable thinking and collective representation are integral components of our purpose to transform the way that businesses operate.

This is how we commit to our people, live our manifesto, and shape a sustainable future - together.