We are looking for a Senior Product Developer to join the Reebok team in Watford. Reporting to the Head of Product and Sourcing Manager, you will play a key role across mens and womens apparel, managing product development from concept through to bulk production across in-house and SMU collections, while ensuring quality, critical path, and supplier coordination are delivered to a high standard. Main Responsibilities Will Include: Manage product development across menswear and womenswear categories from concept through to bulk production. Collaborate closely with Design, Sourcing, and Production teams to ensure products are delivered on time and to the required quality standards. Create and maintain measurement charts, tech packs, line lists, and product development documentation. Communicate daily with Far East suppliers regarding product development, timelines, approvals, and costing queries. Attend fit sessions and manage fit comments, amendments, and sample approvals across all development stages. Review and approve lab dips, print strike-offs, embroideries, trims, and PP samples before production. Support critical path management, ensuring all calendar deadlines and key milestones are achieved. Oversee sample management, product uploads, supplier portal administration, and production-related approvals. Person Specification: Minimum 5 years experience in apparel Product Development across sportswear, activewear, or athleisure. Strong understanding of garment construction, fit development, technical fabrics, and performance apparel. Experience working with Far East suppliers and managing end-to-end product development processes. Highly organised with excellent communication skills and the ability to manage multiple seasons simultaneously. Proficient in Microsoft Excel with a proactive, detail-focused, and collaborative approach.