Implementation Manager I - UK & Nordics

London💼 Full-time🗓 2026-09-21 → 2026-09-26

Core

Own the post-sales integration phase for Mollie's largest and most complex deals, acting as the central point of contact from contract signature through go-live and handover.

Role type

Senior Implementation Manager (Payments/Fintech)

Builds

Post-sales integration processes and delivery for complex merchant onboarding

Domain

Fintech, Payments, E-commerce

Deliverable

production ML models | product features | dashboards & analysis | client delivery | infrastructure

Required skills

Complex project management, stakeholder management, API and integration understanding, technical documentation, timeline and risk management, cross-functional coordination

Preferred skills

Payments, fintech, or e-commerce domain experience

Technologies

APIs, integrations

Responsibilities

Own the post-sales integration phase for complex deals, coordinate across sales/product/engineering/merchants, organize and track testing, maintain documentation and playbooks, keep go-live dates on track

Seniority

Mid-Senior, hands-on IC

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About Mollie

Financial Services1168Amsterdam, North Holland, NLFounded 2004

Mollie offers a single platform for businesses to get paid and manage their money. One that makes payments, reconciliation, reporting, fraud prevention, and financing simple for all – from startups to enterprises. Founded in 2004, Mollie’s mission is to make payments and money management effortless for every business in Europe. Our 850-strong team works from offices across the continent, including Amsterdam, Ghent, Lisbon, London, Maastricht, Milan, Munich, Berlin, Kiel and Paris. Today, more than 250,000 businesses use Mollie to drive revenue, reduce costs, and manage funds.