David Mach

Finance Leader | Controller with Proven Success in Streamlining Operations & Maximizing Profitability

Green Bay, Wisconsin, United States

About

Results-driven Financial Controller with extensive experience leading full-cycle accounting operations, financial planning, and strategic initiatives across diverse industries including technology, manufacturing, and financial services. Skilled in optimizing processes, implementing ERP systems, and enhancing internal controls to ensure accuracy, compliance, and efficiency. Recognized for partnering with executive leadership to drive data-informed decisions, strengthen financial performance, and support organizational growth. Passionate about process improvement, team development, and leveraging technology to streamline finance operations.

Experience

  • Controller at BE'S Refreshments
    Feb 2024 - Present · 2 yrs 5 mos

  • Project Accountant at Heartland Business Systems
    Sep 2023 - Jul 2025 · 1 yr 11 mos

  • Controller at American Tent
    Jan 2023 - Jun 2023 · 6 mos

  • RLA LLP (1 yr 8 mos)
    • Senior Accountant
      Aug 2021 - Jan 2023 · 1 yr 6 mos

      Owned full-cycle month-end close for multi-entity cryptocurrency clients exceeding $3B in annual revenue. Led workflow automation that reduced close time by 50%. Maintained systems integrity across NetSuite, QuickBooks, and multiple trading platforms.

    • Senior Accountant
      Jun 2021 - Jan 2023 · 1 yr 8 mos

      Owned the full-cycle month-end close for multiple entities generating over $3B in annual revenue within the cryptocurrency sector. Maintained accounting integrity across platforms including QuickBooks, NetSuite, Expensify, and Brex. Implemented AFRM workflow to reduce close time by 50% and increase accuracy. Directed preparation of financial statements and maintained strong internal controls.

  • Accounting Manager at Hamilton Laboratory Solutions
    Mar 2020 - Apr 2021 · 1 yr 2 mos

    -Employed as key finance professional to create a new accounting department from the ground up -Developed SOP for annual budget, forecast process, month close, journal entries, cash management and standardized reporting Managed budgeting and financial planning and analysis process (i.e. Balance Sheet, P&L and Cash Flow) -Oversight of domestic and international (China) manufacturing facilities -Provided leadership and direction to various functional teams