Description We are looking for an experienced Business Analyst Advanced to support a client-facing onboarding program in Boston, Massachusetts. This Long-term Contract position will focus on coordinating third-party onboarding activities, aligning business needs with operational readiness, and driving clear communication across internal teams and external partners. The role suits a senior specialist who can manage competing priorities, operate effectively in a change-driven environment, and provide confident updates to stakeholders throughout delivery.

Responsibilities:
• Lead third-party onboarding activities from initial assessment through implementation, testing, launch preparation, and post-go-live stabilization.
• Act as the primary contact for clients and external service partners, translating current operating models into practical future-state onboarding plans.
• Coordinate closely with product, operations, reference data, testing, and technology teams to defi...