Senior Accountant and HR Administration

JA McMahon is a third‑generation, family‑owned steel fabrication company with a long‑standing reputation for quality, stability, and employee retention. The company offers a collaborative, hands‑on environment where professionals have visibility, autonomy, and the ability to make a real impact.

We are seeking a Senior Accountant to take ownership of day‑to‑day accounting operations and support leadership with accurate, timely financial information. This role is ideal for a hands‑on accountant who enjoys broad responsibility and working closely with ownership in a flourishing and established company.

The focus of this position is core accounting and financial oversight within a manufacturing/ construction environment. The role includes oversight of payroll and HR administration.

• Maintain general ledger and prepare journal entries
• Perform monthly close activities and account reconciliations
• Reconcile bank and credit card accounts
• Support job costing and cost tracking within Sage
• Assist with WIP review and operational financial analysis
• Provide oversight of accounts payable and accounts receivable
• Interface with external accounting partners for tax payments and compliance
• Provide financial data and insight to support ownership decisions
• Oversee payroll processing and help improve workflow efficiency
• Support employee onboarding and basic HR and 401k administration
• Maintain accurate financial and payroll‑related records

• Bachelor’s degree in Accounting, Finance, or related field
• 3–7+ years of accounting experience
• Experience in manufacturing, construction, or project‑based environments preferred
• Familiarity with job costing and operational accounting
• Hands‑on experience with Paychex payroll and HRIS functionality strongly preferred
• Sage accounting experience and solid Excel skills
• Self‑starter who enjoys owning the accounting function
• Comfortable wearing multiple hats across the company
• Strong accounting fundamentals with intellectual curiosity
• High level of discretion and professionalism

The successful candidate will receive a competitive compensation package, 100% employer‑paid health (including family coverage)/dental/vision/life 401k Safe Harbor with profit sharing up to 10% of salary, and paid time off.