Product Development Manager (Seamless)

Lead the future of Seamless product creation

At Gymshark, innovation and performance are at the heart of everything we create. We're looking for an experienced and inspiring Product Development Manager (Seamless) to lead the development of our seamless product category, ensuring exceptional products are delivered on time, to the highest quality standards, and ready for our global community.

This is a leadership role where you'll oversee the end-to-end development process, manage and develop a high-performing team of Product Developers, and partner closely with cross-functional teams and suppliers to bring innovative products from design concept through to final approval.

WHAT YOU'LL DO.

As Product Development Manager, you'll be responsible for ensuring the seamless category is developed efficiently, collaboratively, and in line with Gymshark's standards for quality, performance, fit, safety, and compliance.

Key Responsibilities

• Lead the product development process from Design handover through to Black Seal approval across the seamless category.
• Manage critical paths, key milestones, and development timelines to ensure products are delivered on schedule.
• Lead, coach, and develop a high-performing team of Product Developers, creating an environment that drives collaboration, accountability, and growth.
• Ensure all products are developed with exceptional accuracy, clarity, and technical detail.
• Act as the key escalation point for development challenges, resolving issues relating to quality, technical specifications, timelines, and suppliers.
• Collaborate closely with Design, Raw Materials, Colour, Product Integrity, and Quality teams to support efficient product development.
• Build strong relationships with key stakeholders across Merchandising, Brand, Production, Supply Chain, Retail, and other business functions.
• Partner with suppliers, vendors, and mills to ensure the timely delivery of prototypes and development samples that meet Gymshark's quality expectations.
• Monitor development progress and provide regular updates to senior leadership on timelines, quality, risks, and team performance.
• Drive continuous improvement across product development processes, ways of working, and team capability.

WHAT YOU'LL NEED.

Essential Skills & Experience

• Proven experience within apparel product development, including experience managing and developing teams.
• Strong technical expertise in garment technology.
• Knowledge of fit evaluation, pattern making, and end-to-end product development processes.
• Understanding of key technical disciplines including colour development, raw materials, and quality assurance.
• Strong leadership skills with the ability to motivate, coach, and develop high-performing teams.
• Excellent communication and stakeholder management capabilities.
• Strong analytical, problem-solving, and decision-making skills.
• Exceptional attention to detail and organisational ability.
• Experience managing multiple projects and priorities within a fast-paced environment.
• Ability to communicate development status, risks, and recommendations clearly and effectively.

Preferred Experience

• Experience managing multiple complex development projects simultaneously.
• Strong proficiency in Microsoft Office applications.
• Experience within activewear, sportswear, performance apparel, or fashion product development environments.
• Knowledge of seamless product development and manufacturing processes would be advantageous.

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 three 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.

Belonging at Gymshark

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 of any kind. If you’d like to request a reasonable adjustment please email

About Us

We’re here to unite the conditioning community. We believe that putting the sweat in today, prepares us for tomorrow. So, we give people the tools they need to reach further, go faster, be stronger. We celebrate those who show up – for themselves – to be their physical or mental best, whatever that means for them. It’s what we want for our community, and our team. A team that’s growing rapidly around the world. A collective of talented individuals working together to invent Gymshark’s future. Our plans are ambitious, and we’re looking for people who want to join us for the ride – our growth will be your growth.

The Perks

Standard benefits include:

• Performance-based Bonus opportunity
• Funded Healthcare benefit
• 25 days holiday, additional day for your birthday & Bank Holidays
• Contributory Employer pension scheme
• Flexible benefits programme – including salary sacrifice EV scheme, dental insurance, cycle to work, tech scheme, holiday trading
• Gymshark Employee Discount & long service awards
• Access to High Street cashback and discounts
• Financial, Physical and Mental Wellbeing Support
• Enhanced Family Leave package
• Life Assurance

Office location specific benefits include (HQ/IQ):

• Gym Membership to The Lifting Club (LC)
• Onsite lunch provision & coffee bars
• EV charge points available

Note: The bonus program and benefits have certain eligibility requirements. Gymshark reserves the right to amend these programs in whole or in part at any time without advance notice.

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