Assistant Controller - (Senior Accounting Consultant)

Category: Nonprofit Charitable Organizations

Location:

Assistant Controller (CAS Senior Accountant/Supervisor)

Fully Remote (ET Zone) | Full-Time or Part-Time

Join Insero’s Client Accounting Services (CAS) team andenjoy meaningful client work, schedule flexibility, and a variety of projectssupporting a variety of organizations. If you want a role where every day looksdifferent—and your expertise has real impact—this is it.

Client Accounting Services:Our ClientAccounting Services Group has been around for over 20 years and is made up ofdedicated personnel whose only assignments are supporting our client base. Weare full-time CPAs, CMAs, Accountants and Business Managers. We understand theissues that Controllers and CFOs face every day – and our technology,experience and flexibility add real value. Accounting Consulting for us is notsomething that fills our downtime; it is our focus all year long. Our servicesrange from bookkeeping to budgeting and forecasting. Our Client AccountingServices Team ensures our clients have the information and advice they requireto run their business/organization.

What You’ll Do

• Lead/support full‑accrual month‑end close, journal entries, reconciliations, A/P, A/R, payroll, and financial reporting.
  
• Analyze and clean up general ledger activity to ensure accuracy.
  
• Assist with cash flow, disclosures, budgeting, and annual planning.
  
• Communicate directly with clients and coordinate with auditors and external partners.
  
• Improve processes, strengthen internal controls, and help upgrade or implement accounting systems.
  
• Supervise staff as needed.
  

RequirementsWhat You Bring

• Associate’s in Accounting required; Bachelor’s preferred.
  
• 4+ years accounting experience with nonprofit exposure (industry or public).
  
• Strong month‑end close and reconciliation skills.
  
• Experience with QuickBooks Online, Intacct, and Bill strongly preferred.
  
• Excellent communication, client service mindset, and the ability to manage multiple engagements.
  
• CPA/CMA a plus.
  

Compensation

$72,000–$95,000 base salary, depending on experience.Additional discretionary bonus opportunities available.

BenefitsWhy Insero

• 4–5 weeks PTO + 16 paid holidays
  
• Remote/hybrid flexibility
  
• 401(k) with firm contributions
  
• Tuition reimbursement program
  
• Robust benefits offerings
  
• Spot bonuses, CPA bonus, training & technology investment
  
• Ranked the #4 Best Companyto Work For inNew York in the Medium Companies category (State, NYS-SHRM and Best CompaniesGroup) 2026. 2025, 2023 and 2022 ranked #1 and in 2024, ranked #3.
  
• Best Accounting Firms to Work For (National, Accounting Today andBest Companies Group) 2012-2025.
  
• #1 Best Accounting Firm, Reader Rankings (Local, Rochester Business Journal) 2023-2026,consistently ranked since joiningin 2018.
  

At Insero, we believe in being passionate about people,delivering excellence, growing to new heights, and going further together. Ifthese values resonate with you, we encourage you to apply!

Insero is an Equal Opportunity Employer.



Details