Interim Project Manager OMS & Marketplace Integration

You report to the Chief Digital Officer (CDO).

The goal of this project is to build a central Order Management System (OMS) that:

• receives orders from a marketplace
• acts as reseller towards the marketplace partner
• orchestrates fulfillment via multiple dismantlers using a drop-shipment model
• supports summary invoicing, supplier self-invoicing, and EU VAT complexity

The partner relationship is strategically important, and the solution must be correct, auditable, and scalable from day one.

Main tasks:

• Responsible for delivering a high-confidence Order Management System (OMS) integration with a strategic marketplace partner, reducing delivery, financial, and operational risk ahead of go-live
• Validate and strengthen the end-to-end OMS design
• Confirm correct handling of:
  • order and line lifecycles
  • inventory reservation and supplier acceptance
  • partial fulfillment and exception handling
  • summary invoicing, credits, and supplier self-invoicing
  • EU VAT reverse charge and cross-border trade flows
• Identify and mitigate scale, audit, and financial risks
• Help the team move from MVP to go-live without architectural rework
• Review and challenge OMS, pricing, logistics, and financial flows
• Responsible for pressure-test edge cases and failure scenarios
• Validate integration boundaries between OMS, ERP, accounting system and marketplace
• Provide concrete, actionable guidance to product, tech, and finance teams
• Act as a sparring partner to digital and delivery leadership

To be relevant for the role:

• You must have experience from personally building or leading an OMS-implementation for:
  • marketplace or multi-seller models
  • drop-shipment or distributed fulfillment
  • high-volume order-line processing
• You combine strategic thinking with hands-on contribution
• You must have deep understanding of:
  • separation of order, shipment, invoice, and payment lifecycles
  • summary or consolidated B2B invoicing
  • credit notes, refunds, and reconciliation
  • supplier settlement and self-invoicing models
• You have practical EU VAT experience:
• You are comfortable working with accounting integrations (Visma and/or Fortnox) and complex, industry-specific legacy systems rather than standard Tier-1 ERPs
• You are fluent in English and Swedish, oral and written
• It’s a merit if you have a marketplace background from large B2B or B2C platforms
• It’s a merit if you have experience in PE-backed or high-pressure scale-ups

 About the process:

The assignment is 100% full time and starts as soon as possible. The estimated length of the assignment is 3 months. We present candidates for the client company in week 07. Are you available and the right candidate for the assignment? Apply now!