Senior Accounting Manager at Thermo Fisher Scientific in Waltham, MA

Senior Accounting Manager Location: Pittsburgh, Pennsylvania, USA Work Schedule Standard (Mon-Fri) Environmental Conditions Office Job Description 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 Compensation and Benefits The salary range estimated for this position based in Pennsylvania is $118,100.00–$177,200.00. This position may also be eligible to receive a variable annual bonus based on company, team, and/or individual performance results in accordance with company policy. We offer a comprehensive Total Rewards package that our U.S. colleagues and their families can count on, which includes: A choice of national medical and dental plans, and a national vision plan, including health incentive programs Employee assistance and family support programs, including commuter benefits and tuition reimbursement At least 120 hours paid time off (PTO), 10 paid holidays annually, paid parental leave (3 weeks for bonding and 8 weeks for caregiver leave), accident and life insurance, and short- and long-term disability in accordance with company policy Retirement and savings programs, such as our competitive 401(k) U.S. retirement savings plan Employees’ Stock Purchase Plan (ESPP) offers eligible colleagues the opportunity to purchase company stock at a discount For more information on our benefits, please visit: https://jobs.thermofisher.com/global/en/total-rewards Additional Locations: Waltham, Massachusetts, USA, Carlsbad, California, USA