Marketplace Manager

Marketplace Manager - UK (Hybrid, 2 Days/Week in London Office)

Description PetLab Co. is the world leader in the DTC pet supplement market with 50%+ market share, 9-figure revenue, and rapidly growing globally.

We are looking for a dynamic, mid-level Marketplace Manager to join our fast-paced Growth team. In this role, you'll work across our most important online retail channels: Amazon, Walmart, and Chewy, to deliver growth, optimise performance, and elevate operational excellence. You'll partner with key stakeholders across marketing, operations, customer service, and leadership to execute strategy, launch new initiatives, and ensure a seamless brand presence on all marketplace platforms.

We're looking for someone highly analytical, commercially driven, and obsessed with testing and learning. You'll be instrumental in helping PetLab Co. become a category-defining brand across third-party marketplaces.

Key responsibilities include:

Driving sales performance through strategic marketplace optimisation

Leading A/B testing and CRO experiments to enhance performance

Managing projects aligned with marketplace growth and execution

Collaborating with cross-functional teams to deliver unified go-to-market experiences

Leveraging data to identify opportunities and make informed decisions

Serving as the main point of contact with marketplace reps to strengthen partnerships

Who Will You Report Into?

Hi, I'm Tom Abbott, Head of Marketplaces at PetLab Co. As we expand our brand presence globally, this role is critical to driving our performance across leading marketplaces like Amazon, Chewy, and Walmart.

You'll work closely with me on executing marketplace strategy, building relationships with key partners, and optimising channel performance. I'm looking for someone who's hungry to learn, unafraid to dive deep into data, and proactive in solving problems. If you're excited by fast growth, autonomy, and the opportunity to impact a 9-figure business, this is the role for you.

Ideal Candidate Profile

2+ years of experience managing marketplaces (Amazon required) for a DTC brand, agency, or startup

Hands-on knowledge of retail media, Amazon Seller Central or Vendor Central

Strong analytical mindset; confident in interpreting performance data and making optimisation decisions

Comfortable running CRO tests and analysing metrics

Highly organised with experience managing multiple projects, deadlines and initiatives

Entrepreneurial spirit and a growth mindset & thrives in ambiguity and fast-paced environments

Passion for pets and a love for driving results

Company Culture & Work Environment PetLab Co. is a data-driven, results-oriented environment where collaboration, curiosity, and ambition are celebrated. We believe the best ideas win, no matter where they come from. We work fast, move faster, and reward those who deliver meaningful impact.

You'll join a team that values:

Autonomy and accountability

Cross-functional teamwork

Continuous learning and experimentation

Pet-obsessed, positive energy

Responsibilities Breakdown

• 30% Strategy & Optimisation - Owning channel performance metrics, analysing sales data, and proposing tests to improve KPIs, including driving external traffic to the channel
• 25% Execution & Operations - Managing listings, product updates, and campaign rollouts across platforms
• 20% Data & Reporting - Monitoring dashboards, performance trends, and competitor activity
• 15% Relationship Management - Acting as liaison with Amazon, Chewy, and Walmart reps, ensuring best-in-class partner support
• 10% Cross-functional Collaboration - Working with creative, customer service, and logistics teams to drive coordinated marketplace performance

Requirements

Minimum 2 years' experience in marketplace/eCommerce roles, with strong exposure to Amazon

Experience in DTC, subscriptions, or performance marketing environments

Comfortable in a hybrid setup, working 2 days/week in our London HQ

Strong verbal and written communication skills

Proven problem-solver with strong attention to detail

Project management capability - experience juggling multiple initiatives simultaneously

Benefits & Perks

• Private Health Care through Vitality
• Generous Annual Leave - 28 days + public and bank holidays
• Flexible Working Hours - We focus on results and trust people to manage their time, whether working from home, while travelling, or in the office!
• - Employee Assistance Programme
• Royal London Pension Scheme - We offer a workplace pension scheme with one of the UK's leading providers of group pensions. With an employer contribution of 5%!
• Enhanced Maternity / Paternity / Adoption Leave - because time with new family members is important!
• Nursery Salary Sacrifice Scheme
• Generous Learning and development budget - We always want you to keep learning.
• Puppy Therapy - working in partnership with Paws in Work to provide a boost of oxytocin twice a year.
• Generous Learning and development budget - We always want you to keep learning.
• Free breakfast, fruits and snacks - refuel and revitalise with free munchies in the office.
• Working Environment - dogs are welcome!
• Life Assurance - In the event of your death, while employed by us, your chosen beneficiaries will be provided with a tax-free lump sum equivalent of four times your basic salary.
• Discount Vouchers & Gym Memberships - get discounts at a whole range of retailers and gym memberships through our provider, WellHub.
• Electric Vehicle Scheme - Employees sacrifice salary in return for a new electric car, typically saving 30-40% of costs through income and tax and national insurance.
• Give Back Day - An extra day off in the year to volunteer plus a £50 contribution to your chosen charity.
• Health Cash Benefit - We offer the bronze package with enables you to claim a certain amount of cashback when you pay for something that is health related, i.e dental

Diversity & Inclusion Statement PetLab Co. is an equal opportunity employer that is committed to diversity and inclusion. We encourage all applications irrespective of gender, race, sexual orientation, religion, age, nationality, marital status, and disability. We believe that diversity is at the heart of innovation and we welcome passionate candidates from all backgrounds. Come join the family and see for yourself!