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Sustainability Assistant

ASOS.com • United Kingdom • Added on Jul 27, 2026
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As a Sustainability Assistant at ASOS, you will sit at the crossroads of fashion production and environmental accountability. Your daily focus centers on verifying the integrity of sustainable material claims, helping buy teams navigate complex certification systems like GRS and GOTS. You will ensure that every ‘green’ claim made on the platform is backed by robust data and audit-ready documentation.

This role is vital because it directly impacts the transparency of high-street fashion at scale. By meticulously tracking fiber origins and circular design targets, you help mitigate greenwashing risks and drive the industry-wide shift toward responsible sourcing. You aren’t just filing paperwork; you are safeguarding the trust of millions of customers moving toward conscious consumption.

This suits someone who is extremely detail-oriented, comfortable navigating large datasets in Excel, and possesses a foundational understanding of textile certifications and global fashion supply chains.

Job FAQs

What are the main missions and responsibilities of this role?

The Sustainability Assistant is responsible for the integrity of environmental claims across various product categories. You will lead weekly compliance checks to ensure all 'green' marketing aligns with current legislation and internal standards. This involves mapping supply chain documentation and maintaining precise trackers for sustainable materials. Beyond compliance, you will play a hands-on role in circular design programme delivery. You will analyze sustainability data to identify delivery risks and opportunities, while also acting as a primary point of contact for designated suppliers and internal buying teams to drive performance against ASOS's ambitious ESG targets. You will also manage the administrative backbone of the team, including validating certificates such as GOTS and GRS, managing the Better Cotton Platform account, and preparing presentations for senior stakeholders. Identifying ways to automate these processes is a key part of the mission.

Key learning opportunities for this job

In this role, you will gain a deep technical understanding of global textile certifications and material standards. You will become an expert in the nuances of the Global Recycled Standard (GRS), Organic Content Standard (OCS), and the Better Cotton Platform, learning how raw materials are tracked from source to finished garment. There is a significant opportunity to develop data management and automation skills. Since you will be identifying efficiency gaps, you could learn how to use advanced Excel functions or internal tools to streamline complex reporting cycles. Furthermore, you will gain exposure to the legal landscape of green claims, understanding how retailers navigate consumer protection laws.

How does the ideal candidate look like (experience, skills)?

The ideal candidate typically has some experience in fashion, retail, or corporate sustainability. You should have a baseline understanding of the environmental risks inherent in fashion supply chains, such as water usage and chemical management in textile manufacturing. Proficiency in Microsoft Excel is non-negotiable, as you will be managing extensive datasets. Soft skills are just as important; you need to be a clear and confident communicator who can translate technical sustainability requirements for buying teams. Being highly organized and detail-focused is essential, as even a small error in a certification check can lead to significant compliance risks for a global brand.

Advice to stand out and make a successful application

To stand out, demonstrate a specific understanding of textile traceability. Don't just say you like fashion; mention your familiarity with specific certifications like GOTS or RCS and why they matter for a brand of ASOS's scale. Showing that you have researched the CMA Green Claims Code or similar transparency regulations will instantly make your application more credible. Given the detail-oriented nature of the job, your resume needs to be meticulously formatted. Any typos or inconsistencies will be seen as a reflection of how you might handle supplier audits. If you have experience using data to solve a process problem, highlight that specific outcome to showcase your analytical mindset.

What aspects of the company's sustainability is this role likely to focus on?

The role focuses heavily on product level sustainability, ensuring that the materials used in ASOS garments meet specific social and environmental criteria. You will be at the forefront of the company's circularity transition, helping to implement design principles that allow clothes to be reused or recycled more effectively. You will also focus on supply chain transparency. By managing supplier databases and validating third-party audits, you ensure that ASOS's sustainability reporting is accurate and that the company meets its public-facing targets for 100% more sustainable fibers.

What are the main challenges someone in this role might face?

One of the primary challenges is managing the velocity of fast fashion alongside the rigorous demands of sustainability auditing. You will need to keep up with high volumes of new product launches while ensuring every single one meets compliance standards, which can create significant pressure during peak retail seasons. You might also face hurdles when influencing external suppliers. Getting timely and accurate documentation from regional manufacturers requires persistence and strong relationship-building. Dealing with discrepancies in certification platforms like Better Cotton can be complex and requires a methodical, problem-solving approach.

How could a typical day look like for someone in this position?

A typical day might start with validating a batch of transaction certificates from suppliers to ensure their recycled polyester claims are legitimate. You would then jump into a meeting with a buying team to review their progress against fiber targets, perhaps providing a mini-training session on how to use new circular design guidelines. In the afternoon, you might focus on compliance auditing, reviewing the website's 'Responsible' filters to ensure all claims are legally sound. Your day could end with data entry and updating the internal sustainability tracker, ensuring all stakeholder reports are ready for the weekly governance review.

What are the opportunities for professional growth and development in this role?

This position is a perfect launchpad for a career in ESG or sustainable procurement. As you master the certification processes, you could move into a more strategic Specialist role, focusing on specific material categories or broader environmental policy development within ASOS. The global nature of the company also provides visibility to senior leadership through data reporting. High performers who demonstrate an ability to automate workflows or significantly improve supplier compliance rates are often positioned for promotion into Sustainability Manager or Supply Chain Consultant roles.

The main stakeholders you might be interacting with

Your most frequent interactions will be with the internal Buying and Merchandising teams, where you will act as a subject matter expert on sustainable materials. You will also collaborate closely with the Legal and Compliance department to ensure green claims meet regulatory standards. Externally, you will be a key point of contact for global garment suppliers and textile mills. You will also interact with standard-setting bodies like Textile Exchange and Better Cotton to resolve account discrepancies and stay informed on evolving industry benchmarks.

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