Senior Finance Manager

Senior Finance & Accounting Manager

Insource Services, Inc. | Boston, MA (Hybrid, Client-Facing Consulting Role)

At Insource, we provide outsourced Finance, HR, and IT expertise to a diverse range of clients-from small venture-backed startups to long-established nonprofit organizations. We partner closely with client teams, providing them with knowledgeable support that strengthens financial operations and helps them achieve their mission and business goals.

We value thoughtful problem-solving, clear and candid communication, and doing the right thing for the right reason. We take pride in being easy to work with and building long-term, trusted relationships with our clients.

What You'll Do

As a Senior Finance & Accounting Manager, you will serve as both a strategic resource and hands-on financial leader for multiple client engagements :

Lead monthly, quarterly, and annual close processes, ensuring accuracy and adherence to GAAP and internal controls.

Maintain general ledgers; prepare journal entries, account reconciliations, and financial statements.

Prepare cash flow forecasts, projections, and financial dashboards to support client decision-making.

Develop and strengthen financial controls, accounting workflows, and organizational finance policies.

Plan and manage annual audit preparation, including coordination with auditors and development of required schedules.

Participate in client leadership and / or board meetings as needed and communicate financial results clearly to stakeholders.

Anticipate evolving client needs, identify efficiency opportunities, and recommend best practices.

Collaborate with Insource team members to ensure high-quality, consistent service delivery.

Visit client sites occasionally for meetings and onsite support (minimal travel; mostly local).

What We're Looking For

Strong analytical and financial reporting skills, with the ability to translate details into clear, high-level summaries.

Proficiency with QuickBooks or similar accounting systems, and strong Microsoft Excel skills.

Familiarity with accounting for government contracts or grant-funded organizations preferred.

Demonstrated ability to manage multiple priorities with minimal supervision.

Excellent written and verbal communication skills, including comfort presenting to leaders and boards.

Bachelor's degree required.

At least 3 years of accounting leadership experience in small to mid-sized organizations, public accounting, or consulting.

Nonprofit accounting experience strongly preferred.

Why Join Insource

Engaging, mission-driven consulting work (without overnight travel)

Competitive salary

Health, Dental, Life, Short-Term & Long-Term Disability Insurance

Generous paid time off plus company holidays

Tuition reimbursement

401(k) with company match

Insource is Committed to Inclusion

At Insource we appreciate the value and richness of different perspectives and experiences. We constantly strive to be a more diverse and inclusive workplace. We work to make you feel welcomed and engaged as a valued member of the team. We provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, veteran status, or any other characteristic protected by federal, state or local law. In addition, Insource Services will provide reasonable accommodations for qualified individuals with disabilities.

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