Product Developer; Seamless England, United Kingdom

Help create the next generation of Seamless innovation

At Gymshark, innovation is at the heart of our product creation process. We’re looking for an experienced and passionate Product Developer (Seamless) to lead the development of our seamless men's and women’s product categories, ensuring every product is delivered on time, meets our technical and quality standards, and performs for our global community.

Working at the centre of the product creation process, you’ll collaborate with Design, Colour, Raw Materials, Fit, Quality, Sourcing, and supplier partners to bring innovative seamless products from concept through to production. This is an exciting opportunity for someone who combines deep seamless expertise with strong technical knowledge and exceptional project management skills.

As a Product Developer (Seamless), you’ll take ownership of the end-to-end development process, ensuring products meet Gymshark’s standards for fit, construction, performance, quality, sustainability, and compliance.

• Lead and manage the end-to-end development of seamless products across men’s and women’s categories.
• Own and manage development critical paths, ensuring milestones and seasonal deadlines are achieved.
• Take responsibility for garment construction, fit, and overall product execution.
• Collaborate closely with Design and technical teams to ensure products align with design intent, fit standards, and performance requirements.
• Coordinate development activities across Colour, Raw Materials, Fit, Quality, and Sourcing teams.
• Act as the primary technical point of contact for all seamless product development topics.
• Partner with suppliers and manufacturers to ensure technical specifications, development timelines, and quality standards are met.
• Ensure products are tested appropriately and comply with all safety, legal, and regulatory requirements.
• Validate sustainability and performance claims throughout the development process.
• Proactively identify and resolve development challenges to minimise delays and maintain project momentum.
• Maintain accurate development documentation, including tech packs, approvals, and sealed samples.
• Provide regular progress updates to key stakeholders and leadership teams.

• Strong knowledge of garment construction, fit, and technical product development.
• Expertise in seamless product development and seamless manufacturing technologies.
• Strong understanding of product development critical paths and key milestones.
• Knowledge of colour development, raw material technologies, garment testing, and quality processes.
• Understanding of sustainability practices, product compliance requirements, and safety regulations.
• Experience working collaboratively with Design, Sourcing, Production, Quality, and supplier partners.
• Strong analytical and critical‑thinking skills.
• Excellent organisational skills with the ability to manage multiple priorities and deadlines.
• High attention to detail and a proactive approach to problem‑solving.
• Strong communication and stakeholder management skills.
• Experience using PLM systems, Excel, CAD software, and other product development tools.

• Advanced proficiency across Microsoft Office applications.
• Experience working within global manufacturing and sourcing environments.
• Strong understanding of active wear, sportswear, or performance apparel development.

Onsite

Collaboration:

Due to the hands-on and highly collaborative nature of the work within our Product & Supply Chain team,
we have a minimum expectation of FOUR days per week onsite at our Gymshark HQ. This ensures we can work closely together to innovate, problem-solve, and deliver world-class products for our community.

Our mission is to be a place where everyone belongs. We’re an equal opportunities employer, and for us that means we always strive to be as inclusive as possible in all aspects of employment, right from your application. We’re committed to finding reasonable adjustments for candidates with specific needs or have a disability during our recruitment process, and all applicants will be considered fairly and equally.

We do not tolerate discrimination…