On's mission is to become the leading premium sportswear brand rooted in design, performance and sustainability. To drive this commitment, we are looking for a dedicated Sustainability Data Specialist in Zurich who will support our data efforts for our sustainability ambitions and requirements. Contributing to our annual GHG accounting, you will be responsible for collecting, validating, and calculating Scope 1-3 data, and building end-to-end data flows to transform raw source data into actionable metrics. Leveraging your track record in carbon accounting and data engineering, you will execute data workstreams for sustainability disclosure and regulatory requirements. You will collaborate with Tech and business stakeholders to streamline data workflows and systems, while supporting the Product Sustainability, Traceability, and Responsible Manufacturing teams with data needs. If you are data-savvy with a track record in GHG accounting and are looking to make an impact in a growing sportswear brand, this role is for you!

Your Mission

• Collect, validate, and calculate Scope 1-3 data and manage relationships with data owners
• Model and map end-to-end sustainability data flows from source systems to reporting tools, transforming raw data into actionable metrics
• Identify opportunities to streamline data workflows and systems in collaboration with Tech teams
• Execute data workstreams for sustainability disclosure and regulatory requirements (e.g., CSRD)
• Support Product Sustainability, Traceability and Responsible Manufacturing teams with data collection, visualization, and engineering tasks

Your story

• Bachelor’s or Master’s degree in Data Science, Environmental Engineering, Sustainability, or a related field
• Min. 1 year of experience in sustainability data with a track record in carbon accounting, expert in GHG Protocol
• Ability to code in Python for data processing and automation of tasks
• Experience with BigQuery or similar data warehouse architectures, including writing and optimizing queries
• Proficiency in data management tools (Excel, Google Sheets)
• Strong understanding of sustainability metrics, reporting standards (such as SBTi), and global regulations
• High attention to detail with the ability to structure and validate complex data
• Ability to collaborate with both technical teams and business stakeholders
• Fluency in English
• Passion for sustainability

We are a small team with big responsibilities. We design and implement the sustainability strategy across On and help shape the future of the organization. We do research, create strategies and implement projects and innovate products and processes through the lens of sustainability. We are the strategic hub, setting the direction and pace for corporate impact by defining priorities, targets, and policies. We act as internal educators and enablers, providing tools and training, and then amplify our progress through clear 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

• A dynamic environment ranked as a fastest-growing sports company where your work directly impacts our global footprint. A culture that fosters excellence and potential. This role offers deep exposure to strategic planning and technical knowledge growth. The chance to build something incredible with a collaborative, high-energy global community where you can truly thrive
• If you are driven to bring On to the next level, curious about the opportunity and want to be part of our growing team send us your application, and join the ONiverse!
• 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