Accounting Clerk at Mountainside Treatment Center – Canaan, Connecticut

About the Position:

We are seeking an organized and detail-oriented Entry-Level Accounting Clerk to join our small but busy accounting team in our Canaan, CT office. This in-person role supports daily accounting operations, ensures accurate financial recordkeeping, and assists team members across Accounts Payable, Accounts Receivable, and general ledger activities. This is an excellent opportunity for someone looking to start their accounting career in a supportive, hands-on environment.

Schedule:

Monday - Friday, 8:30 am - 5:00 pm

Your Role:

Accounts Payable / Accounts Receivable

• Match invoices to purchase orders and verify accuracy
• Enter vendor invoices into the accounting system
• Prepare weekly payment batches
• Communicate with vendors to resolve discrepancies
• Post customer payments and assist with cash application
• Reconcile client accounts as requested
• Support follow up on overdue accounts when needed

General Accounting, Reconciliations & Reporting

• Assist with preparing journal entries under supervision
• Maintain accurate and organized financial files (physical and digital)
• Support month end and year end closing tasks
• Prepare basic spreadsheets and financial summaries as assigned
• Assist with reconciling credit card transactions and internal accounts
• Verify transaction data for accuracy and completeness

Administrative Support

• Handle daily mail processing, including sorting, stamping, distributing, and preparing outgoing mail
• Answer phones and assist internal departments with routine accounting questions
• Maintain organized records and support general office tasks
• Support the accounting team with day to day tasks in a fast moving environment
• Perform other related duties as assigned

Qualifications:

• High school diploma or equivalent required
• Associate degree in Accounting, Finance, or Business preferred
• Basic knowledge of accounting principles (GAAP a plus)
• Proficiency in Microsoft Excel; familiarity with accounting software helpful
• Strong attention to detail and accuracy
• Excellent organization and time management skills
• Ability to work independently and within a small team
• Strong communication and customer service mindset
• Comfortable working on site daily in a busy office environment

Preferred Attributes

• Eager to learn and grow within the accounting field
• Positive, proactive attitude
• Ability to prioritize multiple tasks in a fast paced setting
• Dependable and maintains confidentiality with financial information
• Familiar with SAGE, Concur, Sigmund and Salesforce

Compensation:

The base rate of pay for this position is $19.00 - $21.00 per hour. Actual pay is determined based on a number of job-related factors including skills, education, training, credentials, experience, scope and complexity of role responsibilities, geographic location, performance, and working conditions.

Benefits:

• Comprehensive benefit package
• Paid Time Off (which increases after 1 year with Mountainside)
• Paid holidays including a Multicultural Holiday
• 401(k) with employer matching
• Free meals while working on the Canaan campus
• Monthly $75.00 wellness reimbursement. Our Wellness Reimbursement benefit is meant to encourage employees to engage in productive self-care to avoid burnout and compassion fatigue.

About Mountainside:

Mountainside Treatment Center is a dynamic, fast-paced and growing recovery facility that values innovation and an obsession with providing Best in Class service to our Clients. Founded in 1998, we are a leading behavioral healthcare provider dedicated to treating alcohol dependency and drug addiction. Accredited by The Joint Commission and CARF for its high standards of care, Mountainside seeks out passionate and talented individuals to join its staff. We believe that every employee, regardless of position, plays a vital role in our success.