Ruel started as part time auditor and consultant at the firm before he was accepted as a full partner in May 2008. His career in the public practice started when he joined a small auditing firm where he got promoted to a supervisory position after three years. He has performed various statutory, tax and special audit engagements in the retail, manufacturing, and service industries. He has also reviewed, designed and implemented accounting and internal control systems particularly in production process controls and monitoring.
He also served as an accounting manager for a holding company for nine years where he is responsible for all accounting functions as well as establishing accountability over assets and preparation of management reports.