Mississauga, Ontario or Etobicoke, Ontario – Hybrid (4 days/week in office) Mattamy Asset Management Full-Time At Mattamy Asset Management ( MAM ), everyone has an important role to play in our shared success. Developing thoughtfully planned communities is complex work and our diverse teams come together to deliver on that mission in every aspect. We are thoughtful planners, accurate project managers and practiced subject matter experts. And in each area of our evolving business, we are trusted to drive results. Reporting to the Director, OneStream, the Business Analyst, OneStream will support the delivery, enhancement and ongoing operation of the OneStream platform across our Canadian and U.As part of the IT Enterprise Services team, you will partner with Finance and IT stakeholders to translate business needs into scalable solutions that strengthen financial consolidation, close, planning, forecasting and reporting processes. You’ll work closely with internal teams and external partners across the full solution delivery lifecycle, with a focus on data quality, controls, usability and reliable support. Partner with Finance, Accounting, FP&A; and IT stakeholders to gather, analyze and document business requirements for OneStream solutions. Translate business needs into functional requirements, user stories, process maps, solution designs and acceptance criteria. Support OneStream capabilities for financial close and consolidation, planning, forecasting, management reporting and analytics. Work with technical teams and implementation partners to configure workflows, reports, dashboards, business rules and other platform enhancements. Support data integrations between OneStream and source systems,



including data mapping, transformation, reconciliation and validation. Develop test plans, test cases and scripts;
coordinate system and user acceptance testing;
and confirm that solutions meet business and control requirements. Investigate production issues, analyze root causes and coordinate timely resolution, particularly during critical close, planning and reporting cycles. Identify opportunities to streamline finance processes, reduce manual effort and improve data quality, controls and the end-user experience. Create and maintain process documentation, data mappings, support procedures, release notes, user guides and training materials. Provide functional support and training to OneStream users while ensuring service levels and quality objectives are met. Bachelor’s degree in Accounting, Finance, Information Systems, Computer Science or a related field, or equivalent experience. ~5+ years of business analysis or financial systems experience, including requirements gathering, process analysis, testing and implementation. ~ Strong understanding of finance processes such as financial close, consolidation, planning, forecasting and management reporting. ~ Experience translating business requirements into practical system solutions and clear functional documentation.



~ Experience with data mapping, data validation, reconciliations and integrations between financial systems. ~ Experience developing test plans and test cases and coordinating user acceptance testing. ~ Ability to communicate financial and technical concepts clearly to both business and technical stakeholders. ~ Excellent organizational, planning and time management skills, with the ability to manage multiple priorities and deadlines. Bonus Points Hands-on experience with OneStream implementation, administration, enhancement or production support. Experience with OneStream workflows, Cube Views, dashboards, business rules, data management and reporting. Knowledge of multi-entity consolidation, intercompany eliminations, currency translation, account reconciliations or financial controls. Experience integrating OneStream with ERP or general ledger systems, including JD Edwards. OneStream certification or experience working in an Agile delivery environment. You are also eligible to participate in Mattamy’s annual bonus program which gives you the opportunity to increase your total compensation if business and individual goals are achieved. If you’re the right candidate, we’ll help you learn and grow. Mattamy Asset Management (MAM) is the parent company of Mattamy Homes Canada and Mattamy Homes U.Diversity and inclusion are important to the work we do to support our homebuyers, colleagues, and communities. Mattamy Asset Management is committed to providing accommodation for people with disabilities. Qualified applicants will be contacted directly by the Talent Acquisition team.

📌 Financial Systems (Onestream) Business Analyst (Mississauga)
🏢 Mattamy Homes
📍 Mississauga