Sr. Accountant

We are looking for an experienced Sr. Accountant to support key accounting operations for a Contract position based in Waltham, Massachusetts. This role will focus on clinical accruals, monthly close activities, reconciliations, and general ledger accuracy within a pharmaceutical environment. The ideal candidate brings strong Excel capabilities, sound accounting judgment, and the flexibility to work with evolving systems and processes.

Responsibilities:

Manage clinical accrual accounting by reviewing supporting data, preparing entries, and maintaining accurate financial records. Execute month-end close tasks, including preparing journal entries and ensuring deadlines are met on schedule. Perform detailed account, bank, and balance sheet reconciliations to identify variances and resolve discrepancies promptly. Maintain the integrity of the general ledger through accurate posting, analysis, and follow-up on outstanding items. Partner with internal stakeholders to gather financial information needed for reporting and accrual calculations. Use advanced Microsoft Excel to analyze large data sets, prepare schedules, and support monthly reporting requirements. Assist with accounting activities related to system or process changes as needed, ensuring continuity and accuracy in financial reporting. At least 5 years of accounting experience within the pharmaceutical industry. Strong background in month-end close, general ledger management, and journal entry preparation. Demonstrated experience with account reconciliation and bank reconciliation processes. Advanced proficiency in Microsoft Excel, including the ability to work efficiently with complex spreadsheets. Solid understanding of accrual-based accounting, with direct experience supporting clinical accruals preferred. Comfortable learning and working within new systems or changing accounting environments. Bachelor's degree in Accounting, Finance, or a related field preferred. Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles. Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity

• whenever you choose
• even on the go.

Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information. © 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking "Apply Now," you're agreeing to Robert Half's Terms of Use and Privacy Notice . Sr. Accountant 3.9 3.9 out of 5 stars Waltham, MA 02453 $45

• $55 an hour
• Temporary, Contract Robert Half 13,767 reviews $45
• $55 an hour
• Temporary, Contract We are looking for an experienced Sr.

Accountant to support key accounting operations for a Contract position based in Waltham, Massachusetts. This role will focus on clinical accruals, monthly close activities, reconciliations, and general ledger accuracy within a pharmaceutical environment. The ideal candidate brings strong Excel capabilities, sound accounting judgment, and the flexibility to work with evolving systems and processes.

Responsibilities:

Manage clinical accrual accounting by reviewing supporting data, preparing entries, and maintaining accurate financial records. Execute month-end close tasks, including preparing journal entries and ensuring deadlines are met on schedule. Perform detailed account, bank, and balance sheet reconciliations to identify variances and resolve discrepancies promptly. Maintain the integrity of the general ledger through accurate posting, analysis, and follow-up on outstanding items. Partner with internal stakeholders to gather financial information needed for reporting and accrual calculations. Use advanced Microsoft Excel to analyze large data sets, prepare schedules, and support monthly reporting requirements. Assist with accounting activities related to system or process changes as needed, ensuring continuity and accuracy in financial reporting. At least 5 years of accounting experience within the pharmaceutical industry. Strong background in month-end close, general ledger management, and journal entry preparation. Demonstrated experience with account reconciliation and bank reconciliation processes. Advanced proficiency in Microsoft Excel, including the ability to work efficiently with complex spreadsheets. Solid understanding of accrual-based accounting, with direct experience supporting clinical accruals preferred. Comfortable learning and working within new systems or changing accounting environments. Bachelor's degree in Accounting, Finance, or a related field preferred. Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles. Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity

• whenever you choose
• even on the go.

Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information. © 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking "Apply Now," you're agreeing to Robert Half's Terms of Use and Privacy Notice .