Senior Product Developer - Leathergoods

As a Senior Product Developer for leather goods, you will lead the development of new products within your department including bags, belts and other leather goods. With a focus on construction, component innovation, and sourcing high‑quality leather and materials, you will ensure COS quality standards are consistently met while working closely with the Head of Design, Senior Designer and Junior Designer to guide each product from initial sketch through to production.

Your ability to manage timelines, uphold quality and drive innovation will be essential in shaping a commercially strong and aesthetically aligned collection.

• Lead the end‑to‑end product development process for leather goods, from initial sketch to production in close collaboration with Design and Buying teams.
• Execute an efficient product and component development strategy, ensuring alignment with the department’s visual goals, seasonal direction and customer relevance.
• Source and develop leather qualities, trims, hardware and internal structures with a strong focus on sustainability, quality and innovation.
• Utilise your technical knowledge of premium leather goods construction, leather and skin tanning, embossing and tumbling treatments, materials, fit and finishing to support high‑quality product execution.
• Ensure component bookings and communicate sample yardage to Supply Chain.
• Build, develop and drive the assortment strategy for your department, delivering the vision in a clear and inspiring way.
• Lead the planning of seasonal structure to ensure timely delivery of samples and production.
• Deliver the final assortment to the Design and Buying team in line with seasonal and profitability goals.
• Support the translation of design intent into technically sound and commercially viable products.
• Travel to and work directly with suppliers and Production Offices, acting as the senior point of contact to ensure best‑in‑class sample execution and on‑time delivery.
• Work closely with the Head of Design, Senior Designer and Junior Designer, providing feedback on technical issues and development progress.
• Ensure alignment across the team on product details including colour, fit and functionality.
• Provide product analysis and performance results across the organisation to support strategic decisions.
• Be an expert in sustainable materials and responsible sourcing practices.
• Lead negotiations and costings across the product range, working closely with Buying, Design and Supplier to deliver the collection pricing architecture.

Alignment to our company values is the most important characteristic we look for in all new joiners. Our values are the behaviours that we appreciate above and beyond anything else. We are open‑minded
, curious
, we dare to be different
, we believe in constant improvement and we empower and trust you to take ownership.

• Proven experience in developing luxury leather goods from concept through to final production.
• Extensive knowledge of leather qualities and materials, including textiles, hardware, trims and sustainable alternatives.
• Ability to create and update detailed tech packs, specs and construction details, proving technical expertise.
• Strong trend awareness and ability to translate fashion trends into commercially viable and brand‑relevant products.
• A refined eye for design that aligns with COS’s aesthetic, clean lines, functionality and timelessness.
• Strong organisational skills to manage multiple development timelines and priorities.
• Excellent communication skills, both visual and verbal, with a collaborative mindset.

This is a full‑time permanent role based at our Head Office in London (must be flexible to travel according to business needs).

• Up to 25 days holiday
• Annual health checks
• Pension scheme
• Discounts on various activities and financial/lifestyle products via our benefits hub
• Cycle to work scheme
• Discounted gym membership
• Employee assistance via retail trust
• Private health & dental care

At COS we’re determined to create and maintain inclusive, diverse and equitable workplaces throughout our organisation. Our teams should consist of a variety of people…