As Sustainability Strategy Senior Specialist, you will support the Sustainability Strategic Portfolio Lead in shaping and managing a complex portfolio of programs and initiatives that move the company toward its committed targets. You will help bridge high-level ambition with operational reality, ensuring that sustainability priorities translate into measurable outcomes.You will act as a strategic thought partner to the Global Sustainability team and the broader Oniverse, tackling complex, unstructured challenges and turning them into structured, impact-driven action

Your Mission

• Shape strategic direction by partnering with the Global Sustainability team and senior stakeholders to translate ambition into clear priorities and roadmaps
• Structure high-impact challenges, breaking down complexity into structured, executable and measurable projects
• Quantify value and impact through rigorous financial and sustainability modeling, enabling data-driven trade-offs and optimal resource allocation
• Craft compelling, executive-level narratives to communicate strategy, secure buy-in, and report on progress
• Foster cross-functional alignment to ensure sustainability priorities are deeply embedded directly into the company’s Long Range Plan

Your story

• You hold a degree in business, economics, engineering, or another quantitative field, with 5+ years of experience in corporate strategy, management consulting, or sustainability
• You bring advanced modeling capabilities and the analytical rigor to navigate complexity and identify optimal solutions balancing value creation and impact
• You are pragmatic and execution-oriented, with a strong understanding of how to embed KPIs into business processes and annual planning cycles
• You excel at distilling complex trade-offs into clear, executive-ready insights that enable confident decision-making

We are a small team with big responsibilities. We design and implement the sustainability strategy across On, helping shape the company’s future through research, strategy development, and hands-on implementation.As the strategic hub for sustainability, we define priorities, targets, and policies, while enabling the organization with tools, training, and guidance. We foster innovation in products and processes through a sustainability lens and amplify our progress through clear, credible communication - internally and externally

Just by the banks of the Limmat you’ll find our largest global hub in Zürich West – On Labs – where you can hike up 12 floors through our custom-built spiral trail

What we offer

• On is a place that is centered around growth and progress. We offer an environment designed to give people the tools to develop holistically – to stay active, to learn, explore and innovate. Our distinctive approach combines a supportive, team-oriented atmosphere, with access to personal self-care for both physical and mental well-being, so each person is led by purpose
• On is an Equal Opportunity Employer. We are committed to creating a work environment that is fair and inclusive, where all decisions related to recruitment, advancement, and retention are free of discrimination
• Our full process can last about eight weeks from application to offer, because we care about getting it right. These steps explain how we usually do things

Ready to dig into the details?This second interview will be held with your future manager and will focus on the specifics of the job. Together you’ll delve into your unique skills and experiences and how they could be relevant at On. It's also a time to assess how you might feel working side-by-side. Bring any questions you have about the job, the team or anything else you might like to know – this is an open forum

Are we a good fit?We’ll get together internally to share our feedback and decide if we’re a match. We know that job searching is a big time investment, so it’s not a decision we take lightly. It’s also time for you to reflect on the experience – are we the right place for you?No matter the outcome, we’ll give you meaningful feedback

You'll start by submitting your application to a specific role