Senior Software Developer, Gas Nominations Systems -GeniUS Transformation (Contract)

Country United States / US City HOUSTON Workplace location HOUSTON-LOUISIANA STREET(USA) Employer company TotalEnergies Gas & Power North America, Inc. Domain Information Systems Type of contract Fixed term position 6 Months Experience Minimum 6 years

Context & Environment

TotalEnergies Gas & Power Trading (TGP) and its affiliates operate within a large and complex systems landscape that continues to evolve with the expansion of the power trading business and its growing impact on trading IT. This global role focuses on the tools used by gas and power teams and on their integration within the broader trading and risk management systems. The Core Trading Systems and Risk, Reporting & Compliance teams work together to support trading support functions, front‑office teams, and finance by ensuring access to high‑performance, reliable trading and related systems.

Activities

We are seeking a Lead Software Engineer to drive a major transformation program within our Gas & Power Trading IT team. This role sits at the core of a strategic initiative to decommission a legacy in‑house gas nomination platform and build a robust, scalable in‑house ETRM solution aligned with future business needs. You will not only contribute to development but also lead the technical transformation—defining, designing, and building a sustainable target system while ensuring a smooth transition away from legacy platforms. This position requires deep technical leadership, strong architectural vision, and the ability to guide teams through complex system modernization efforts.

Lead the Transformation

• Take ownership of the end‑to‑end system transition strategy for gas nomination and operations systems.
• Drive the decommissioning of the legacy platform with minimal business disruption.
• Lead the migration of functionalities, workflows, and data.

Build the Target Platform

• Oversee and contribute to the evolution of GeniUS (the in‑house gas nomination system) into a broader operational platform.
• Design and implement robust, scalable, and maintainable solutions.
• Ensure the platform supports key capabilities required for gas operations beyond nominations.

Provide Technical Leadership

• Act as the technical reference point for developers and project stakeholders.
• Guide architectural decisions and ensure alignment with long‑term strate