Michael Martin

Onestream Developer

Ireland

About

As a OneStream administrator and developer, I design and deliver solutions that drive accuracy, transparency, and insight across group reporting, financial planning, and bank reconciliation processes. My work spans the full development lifecycle — from integrating ERP data and building mapping frameworks to developing reports and analysis tools for US GAAP, IFRS, Dutch GAAP, and tax reporting. In addition to managing group reporting processes, I create data quality checks, modelling enhancements, and analytical dashboards that empower our FP&A team with reliable insights for decision-making. Passionate about process improvement and data integrity, I focus on building scalable, automated solutions that strengthen financial reporting and planning across the enterprise.

Experience

  • AerCap (2 yrs 6 mos)
    • Onestream Developer
      Jan 2026 - Present · 6 mos

    • Onestream Administrator
      Jan 2025 - Dec 2025 · 1 yr

    • Finance Transformation Manager
      Jan 2024 - Dec 2024 · 1 yr

  • Grant Thornton Ireland (2 yrs 4 mos)
    • Manager
      Jan 2023 - Jan 2024 · 1 yr 1 mo

    • Assistant Manager
      Oct 2021 - Jan 2023 · 1 yr 4 mos

  • Auditor at KPMG
    Sep 2017 - Sep 2021 · 4 yrs 1 mo

    I am a third year trainee accountant with KPMG working primarily on the audit of aircraft leasing companies.