Senior Accounting Manager

We are seeking a highly motivated and detail-oriented Senior Accounting Manager to lead critical accounting initiatives related to ERP integrations, Transition Services Agreements (TSAs), process improvements, and balance sheet cleanup following a recent $1B acquisition. This role partners closely with Finance, IT, Operations, and external stakeholders to support post-acquisition integration efforts and remediation of historical accounting matters.

Key Responsibilities

• Lead accounting support for a multi-phase ERP implementation within a complex carve-out environment, including interim-state processes, data challenges, and control establishment between system rollouts.
• Partner with Finance, IT, Legal, Integration, and Operations to design and implement accounting policies, procedures, and control frameworks aligned with Thermo Fisher ERP.
• Review and analyze monthly flat file accounting entries (pre‑ERP), ensuring accuracy, completeness, and investigation of variances.
• Serve as accounting lead for Transition Services Agreements (TSAs), including preparation, review, and oversight of settlement statements.
• Monitor monthly TSA activity and invoices across jurisdictions; proactively identify and resolve billing discrepancies and payment issues.
• Support the transition of accounting activities from TSAs to internal teams or shared services.
• Evaluate control design and operating effectiveness for newly integrated systems and processes.
• Lead remediation of control deficiencies and ensure timely closure of commitments made in representation letters.
• Serve as a primary liaison with external auditors and Internal Audit for conveyed and commingled entities.
• Develop and maintain documentation for accounting processes, integrations, and technical accounting positions.
• Oversee periodic testing and analytics related to revenue and inventory cutoff controls.
• Ensure consistent application of accounting policies across newly integrated or evolving business units.

Team Leadership & Capability Building

• Establish clear priorities, accountability, and execution discipline during periods of change.
• Promote a culture of ethics, compliance, and continuous improvement.
• Leverage data, technology, and best practices to strengthen the control environment.

Qualifications

Required

• Must be on-site at the Thermo Fisher Pittsburgh, Carlsbad, or Waltham location
• Bachelor’s degree in Accounting, Finance, Business, or related field.
• 8–12+ years of experience in accounting, internal controls, or integration-related roles.
• Experience supporting M&A, carve-outs, or large-scale integrations.
• Strong knowledge of internal control principles and best practices.
• Proven experience leading complex accounting initiatives (e.g., ERP implementations, system conversions).
• Ability to operate effectively in fast-paced, evolving environments.

Preferred

• CPA, CIA, CISA, or similar certification.
• Experience in a global, matrixed organization.
• Exposure to ERP systems such as SAP, Oracle, or JDE.

Key Competencies

• Integration and change leadership
• Hands-on, execution-oriented mindset
• Strong communication and influencing skills
• Risk-based thinking and sound judgment
• Cross-functional collaboration
• Strategic mindset with execution focus