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Senior Accounting Manager

Thermo Fisher Scientific -
Waltham, MA

Job Details

Full-time
$130,000 - $194,950 a year

Benefits

Commuter assistance
Paid parental leave
Caregiver leave
Employee stock purchase plan
Paid holidays
Disability insurance
Health insurance
Dental insurance
401(k)
Tuition reimbursement
Paid time off
Parental leave
Employee assistance program
Vision insurance
Life insurance

Qualifications

Accounting systems
Internal controls
Team leadership
Bachelor's degree
Accounting and finance experience
Financial systems implementation

Full Job Description

Work Schedule

Standard (Mon-Fri)

Environmental Conditions

Office

Job Description

Position Summary

We are seeking a highly motivated and detail-oriented Senior Accounting Manager to lead critical accounting initiatives focused on accounting tasks related to ERP system integrations, Transition Services Agreements (TSAs), process improvements, and balance sheet cleanup for a recent $1B acquisition. This role is ideal for someone who thrives in a dynamic environment and enjoys tackling complex projects that enhance the scalability, accuracy, and efficiency of the accounting function.

This individual will partner cross-functionally with key leadership in Finance, IT, Operations, and external stakeholders to drive key transformation efforts, including post-acquisition integrations, ERP/system implementations, and remediation of historical accounting issues.

Key Responsibilities

Support M&A related integration activities, including driving the discovery and design phase to transitioning accounting activities into our team

Lead accounting support for a multi-phase ERP implementation within a complex carve-out environment, including navigating interim-state processes, data inconsistencies, and establishing controls between system rollouts

Partner with integration, finance, IT, legal, and operations teams to align control frameworks, policies, and procedures once integrated into Thermo Fisher ERP

Review and analyze monthly flat file entries (until ERP implementation), ensuring completeness and accuracy of financial information and investigating variances and data fluctuations

Serve as the accounting lead for the Transition Services Agreements (TSAs), including preparation, review, and oversight of settlement statements and related processes

Monthly monitoring of TSA activity and invoices between the local jurisdictions and proactively identify, investigate, and resolve payment issues, billing discrepancies with TSA Invoices

Participate in developing and implementing plans to transition accounting functions from the TSA to internal teams or shared services.

Evaluate and design control design and operating effectiveness, particularly in newly integrated processes and systems.

Lead remediation efforts for control deficiencies, ensuring timely and sustainable resolution and ensure timely closure of commitments made in representation letters

Serve as a key liaison with external auditors and internal audit for the conveyed and commingled entities.

Develop documentation for processes, integrations, and accounting treatments to support scalability and audit readiness

Oversee periodic testing and analytics to validate the effectiveness of revenue and inventory cutoff controls.

Ensure accounting policies and procedures are consistently applied across newly integrated or evolving business units

Team Leadership & Capability Building

Establish clear priorities, accountability, and performance standards during periods of change.

Promote a strong culture of ethics, compliance, and continuous improvement.

Leverage data, technology, and best practices to modernize the control environment.

Qualifications Required

Bachelor’s degree in Accounting, Finance, Business, or a related field.

8–12+ years of experience in Accounting, internal controls, or Integration.

Demonstrated experience supporting mergers, acquisitions, or large-scale integrations.

Strong knowledge of internal control best practices.

Proven experience leading complex accounting projects (e.g., ERP implementations, M&A integrations, system conversions)

Proven ability to lead complex initiatives in fast-paced, evolving environments.

Preferred

CPA, CIA, CISA, or similar professional certification.

Experience in a global, matrixed organization.

Exposure to ERP implementations or system integrations (e.g., SAP, Oracle, JDE ).

Key Competencies

Integration and change leadership

Hands-on, roll-up-your-sleeves mindset with a focus on execution

Executive-level communication and influencing skills

Risk-based thinking and sound judgment

Cross-functional collaboration

Strategic mindset with strong execution discipline

Compensation and Benefits

The salary range estimated for this position based in Massachusetts is $130,000.00–$194,950.00.

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

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