Fulfillment Manager in London

We are Manta Sleep, the company dedicated to helping the world experience total darkness and, in turn, total rest. We believe that great sleep is the non-negotiable foundation for a great life. That belief drives us to obsessively design, test, and craft the world's most comfortable, effective, and modular sleep masks and related products. If you are passionate about innovation, comfort, and well-being, and want to contribute to a mission that genuinely improves people's lives, then you belong on the Manta Sleep team.

A Fulfillment Manager Who Makes Logistics Look Easy

We are looking for a Fulfillment Manager who can take full ownership of our logistics, forecasting, inventory planning, supplier coordination, and global shipping operations - splitting their time 80% logistics and 20% admin and operations. You will run the backbone of Manta Sleep’s supply chain, making sure we have the right stock in the right place at the right time, without tying up unnecessary cash. This role has a direct impact on revenue, customer experience, and company stability. The ideal candidate has already managed the full supply chain for a global ecommerce company with $50M - $150M in revenue, is confident in making high stakes decisions, and knows how to modernize and optimize operations across multiple regions. Proficiency in English as a first language is essential for this role. Time zone: Full-time within Asia, Europe or South Africa (GMT0 - GMT+8 time zone).

WHO WE ACTUALLY NEED (and who we don’t)

• This isn’t for freelancers moonlighting or wanting a side hustle.
• It’s not for someone who only managed a small slice of supply chain in a big corporation.
• It’s not for someone who waits to be told what to do or reacts once the problem is there.
• It’s not for someone who avoids decisions or does not feel urgency until a problem is visible.

This is however for someone who:

• Has 7+ years in ecommerce logistics, operations, or supply chain, ideally in companies selling across multiple countries.
• Possesses full end-to-end experience in inventory forecasting, planning, supplier coordination, multi-warehouse management, and international shipping.
• Has hands-on experience with suppliers and manufacturers in Asia, and with importing/exporting into the US, UK, EU, CA, and AU.
• Is experienced with Shopify, Amazon, WMS, ERP systems (e.g., Cin7/Dear), 3PLs, and other logistics tools; tech-savvy and quick to adapt.
• Has strong analytical and numerical skills, confident working with KPIs, cash flow, inventory turnover, fulfillment metrics, and operational data.
• Is risk-aware, detail-oriented, and composed under pressure, capable of managing stockouts, delays, and other operational challenges.
• Has a process improvement mindset: replaces spreadsheets with scalable systems, develops SOPs, and optimizes workflows.
• Brings global logistics expertise, including customs compliance, multi-warehouse coordination, 3PL management, and last-mile optimization.
• Has leadership and coaching experience, supporting teams while holding them accountable and fostering operational excellence.
• Communicates clearly and collaborates across functions, aligning suppliers, internal teams, and partners with company goals.
• Has experience managing operations at ecommerce scale ($50–150M revenue) and thinks like an owner, understanding the operational and financial impact of decisions.
• Is a curious problem solver, able to tackle non-standard challenges and adapt to both startup unpredictability and structured corporate environments.

WHAT YOU’LL BE DOING

• Forecasting and Inventory Planning

• Run monthly and quarterly demand forecasts with marketing and finance.
• Maintain accurate stock visibility across all warehouses and adjust forecasts based on sales trends, events, and real performance.
• Prevent stockouts and overstock while balancing marketing expectations with financial limits on inventory and cash flow.

• Plan reorders cycles with suppliers and manufacturers in Asia.
• Track reorder timelines and flag risks early.
• Manage order documentation, cost breakdowns, purchase orders, and production follow–ups.

• Plan shipping timelines based on company demand.
• Select shipping methods, and routing.
• Work directly with freight forwarders, carriers, and 3PL partners.
• Handle customs requirements and ensure smooth passage into multiple regions.
• Support new fulfillment flows for emerging channels like TikTok Shop and other marketplaces.

• Monitor logistics spend across freight, warehousing, storage, duties, and packaging.
• Audit cost data, find savings through routing and negotiation, and track cash exposure tied to logistics and inventory.
• Always be aware of stress/risk on cash flow tied to logistics/inventory.

• Manage WMS data accuracy across internal and external systems.
• Monitor 3PL’s performance to ensure fulfillment speed, accuracy, and operational quality are on track.
• Lead warehouse expansion, transition, or multi–location setup.
• Troubleshoot system issues and coordinate fixes with internal and external partners.

• Maintain channel integrations across Shopify, Amazon and new storefronts.
• Set up new marketplace fulfillment workflows and troubleshoot any sync or routing problems.
• Ensure product listings, shipping rules and inventory availability stay aligned across all platforms.

• Replace manual trackers with scalable systems.
• Build and update SOPs, improve workflows to cut delays and manual work, and drive automation where possible.
• Own operational tech integrations, including marketplace fulfillment setups, WMS or 3PL connections and API driven tools.
• Identify issues inside any operational systems and coordinate technical fixes.

• Produce key operational reports such as inventory on hand, turnover, forecasting, and discrepancy reports.
• Present clear data insights to support decision making across logistics and general operations.

• Develop and support team members in Ops and Supply Chain.
• Delegate appropriately, manage risk, coach for skill growth, and maintain a calm, steady environment under pressure.

• Own traditional operations and administrative tasks outside of supply chain.
• Oversee wholesale order processing, coordinate payments and support tax related calculations before submission.
• Manage operational admin that keeps the business running smoothly, including compliance checks, vendor paperwork and account maintenance.
• Expect 10 to 20 percent of your role to cover these non logistics operational responsibilities.

WHAT YOU GET

• Bonus Program - Paid quarterly to the entire team when we hit our objectives
• Fully remote with async flexibility
• Unlimited vacation and sick leave days
• Paid courses, coaching, and personal growth budget to help you level up
• We trust you to own your work and drive results

HOW WE HIRE

We believe in being clear and respectful of your time. Here’s exactly what to expect:

• Application form: a few short questions to get a feel for your thinking and experience.
• HR Screening interview: This is a 30 - 45 minute interview to determine initial culture and role fit.
• Technical Interview: a 60-minute conversation with the hiring team to dig deeper into your experience, mindset, and fit.
• Paid trial assignment: a realistic task (2–3 days to complete) that reflects the kind of work you’d actually do here.
• Final Interview: Usually with our CEO, as a final seal of approval.
• Offer + onboarding: if it’s a match, we move quickly.

If we’ve interviewed you, we won’t ghost you. No five-round interview circus. Just a fair, focused process designed to find the right fit for both sides.