Alexis Berthi

Experience

1. Middle Office Analyst

   ENGIE North America Inc.

   Oct 2025 — Present · Houston, TX, US

   Supported U.S. power and natural gas trading desks by analyzing daily P&L, exposures, and market drivers, acting as an independent middle-office control between front office, risk, and back office.Performed daily and monthly P&L reconciliation across legacy and new ETRM trading systems (Aligne, Orchestrade, Common Data Hub), identifying data, logic, and valuation discrepancies and tracing root causes across price curves, trade inputs, and reference data.Analyzed realized vs. unrealized P&L, mark-to-market movements, reserves, and attribution to explain drivers of volatility and support daily trader sign-off and management reporting.Built and maintained Excel and Power BI reports to monitor P&L by book, trader, and product, improving transparency into portfolio performance and reducing manual reconciliation effort.Investigated upstream data quality issues (price feeds, trade booking fields, mappings, partitions) and assessed downstream impacts on P&L, exposure, and reporting accuracy.Partnered with traders, risk, IT, and data teams during system migration initiatives, validating data consistency between platforms and supporting parallel run testing and issue resolution.Developed a practical understanding of power market fundamentals (day-ahead vs. real-time), contract structures, optionality, and hedging mechanics, translating market behavior into P&L and exposure impacts.Produced structured commentary explaining market movements, position changes, and unexplained P&L variances for internal stakeholders, supporting audit readiness and decision-making.