Heather Santaniello

Detail-oriented Accounting and Office Administration professional with more than 15 years of experience supporting accounting, finance, human resources, executive leadership, and daily business operations. Extensive background managing accounts payable and receivable, financial recordkeeping, expense reconciliation, payroll support, contract administration, compliance documentation, and office management within fast-paced environments. Known for exceptional organization, accuracy, problem-solving, and the ability to manage multiple priorities while maintaining outstanding customer service and strong working relationships across all levels of an organization.

Recognized for improving administrative processes, supporting executive leadership, coordinating complex projects, and ensuring efficient day-to-day office operations.

Administrative Assistant at The Walsh Group (2025-06 – Present)

Manage administrative and financial support for a multi-million-dollar construction project, coordinating documentation between project management, accounting, subcontractors, vendors, and executive leadership. Process and audit certified payroll reports, subcontractor compliance documentation, insurance certificates, payment and performance bonds, contracts, purchase orders, and project financial records. Maintain accurate financial and administrative documentation supporting invoices, payment processing, reporting, regulatory compliance, and audit readiness.

Coordinate vendor communications and monitor contract documentation to ensure timely approvals and compliance with project requirements. Prepare reports, correspondence, spreadsheets, and project documentation utilizing Microsoft Excel, Word, Outlook, Adobe Acrobat, Bluebeam, and Workday. Coordinate travel arrangements, meetings, employee events, training sessions, and executive scheduling while supporting daily office operations.

• Develop tracking systems that improved organization, accountability, and timely processing of contracts, purchase orders, and compliance documentation.
• Plan and coordinate employee engagement initiatives, vendor events, safety programs, and company functions while supporting a collaborative workplace culture.

Administrative Services Coordinator at Massachusetts Municipal Wholesale Electric Company (MMWEC) (2021-08– 2025-03)

Supported Finance, Payroll, Human Resources, Engineering, IT, and Executive Leadership with daily administrative and operational functions.

Prepared

Board meeting materials, financial reports, agendas, presentations, and official documentation. Assisted with contract administration, procurement documentation, bid specifications, and regulatory filings. Maintained corporate records, contracts, and document retention systems while ensuring compliance with organizational policies. Coordinated travel, meetings, conferences, and company-wide events for executives and Board members.

• Contributed to the development of the organization's member website, improving user experience and accessibility.

Office Manager / Finance Assistant / Administrative Assistant at The Futures HealthCore, LLC | Futures Education, LLC (2016-04 – 2021-08)

Managed full-cycle accounts payable and accounts receivable processes including invoice processing, payment tracking, customer billing, vendor payments, bank deposits, and account reconciliation. Reconciled executive expense reports totaling $30,000–$100,000 monthly while maintaining accurate financial documentation. Supported the Director of Finance with accounting functions, financial recordkeeping, reporting, budgeting activities, and administrative operations.

Maintained employee personnel files, onboarding documentation, background checks, fingerprinting records, and HR compliance files. Assisted payroll administration and employee benefit processes while supporting Human Resources operations. Coordinated requests for proposals (RFPs), contracts, vendor communications, and executive support.

Managed inventory, office operations, vendor relationships, and purchasing. Planned company events, employee appreciation programs, marketing events, and executive meetings.

• Supported 500+ employees during COVID transition

Human Resource Manager/Recruiter at Rachael's Food Corp. (2015-09 – 2016-04)

Office Manager at Triton Leasing & Rental, Inc. / AMS Environmental Inc. (2014-05 – 2015-09)

Administrative Assistant II (Community Development & Traffic and Transportation) at Fuss & O'Neill, Inc. (2010-08 – 2014-05)

Business Management – Bay Path University

Business Management – Our Lady of the Elms College

Elementary Education – Regis College