Software Developer

Lead Software EngineerTotalEnergies 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.ActivitiesWe 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 TransformationTake 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 PlatformOversee 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 LeadershipAct as the technical reference point for developers and project stakeholders.Guide architectural decisions and ensure alignment with long-term strategy.Establish development standards, best practices, and design principles.Bridge the gap between business needs and technical solutions.Ensure Business ContinuityGuarantee stability of business-critical nomination and operations processes during the transition.Identify and mitigate risks associated with system migration.Prioritize delivery to balance short-term operational needs with long-term strategy.Collaborate GloballyPartner with Gas Operations teams to understand business priorities.Coordinate with global IT teams (US & Europe) to ensure alignment and avoid duplication.Work closely with Business Analysts, product stakeholders, and leadership.AccountabilitiesDeliver tactical and strategic evolutions or fixes on projects with significant impact on business profitability, in alignment with business constraints. Guarantee the reliability, quality, and security of all implemented changes, ensuring full compliance with internal development standards and the framework defined by or with the Architecture Committee.Candidate Profile7+ years of experience in software engineering with strong backend expertise in the.NET framework and C#.Proven experience leading complex system-transformation initiatives.Strong background in system architecture and solution design.Ability to operate effectively in ambiguous, fast-evolving environments.Strong ownership mindset with the ability to drive decisions and influence outcomes.Expertise in software development and management, with knowledge across a wide range of technologies including AWS and/or Azure, Oracle, ASP.NET, C#, Web API, web application development, NPM, WPF and MVVM architectures, WCF Services, MS TFS, Git, and object-oriented design.Degree in IT, computer science, or a related technology or engineering discipline.Knowledge of gas nominations, scheduling, or pipeline operations.Fluent in English; French competency is an advantage.Additional InformationTotalEnergies valorise la diversité, promeut le développement individuel et offre des opportunités d'emploi égales à tous les candidats.About TotalEnergies:TotalEnergies is a multi-energy company that produces and markets energies on a global scale: oil and biofuels, natural gas and green gases, renewables and electricity. Our 105,000 employees are committed to energy that is ever more affordable, clean, reliable and accessible to as many people as possible. Active in more than 130 countries, TotalEnergies puts sustainable development in all its dimensions at the heart of its projects and operations to contribute to the well-being of people.TotalEnergies Gas and Power (TGP) is the trading arm of TotalEnergies in the field of low carbon energies (mainly gas, LNG and power). As such it operates in fast-evolving market dynamics influenced by internal and external factors that require constant adaptation and evolution. Uncertainties specific to the trading environment (volatility of prices, supply & demand mismatches) are coupled with those coming from the broader energy sector (climate change policies, changes in the energy mix, developments of new energy sources, etc). In such context TGP helps to ensure growth and profitability to a key segment of the business in order to reach the objective of Carbon Neutrality by 2050.Our Culture:We are committed to meet the energy needs of a growing population while fulfilling our ambition to be a major player in the energy transition. The volatility of the energy trading markets requires excellence in risk management and a culture of innovation.Our people flourish in an environment that promotes expertise, entrepreneurship spirit, agility and a purpose-driven culture, generating boundless opportunities to learn, grow and achieve collaborative success while ensuring safety in all our operations.We look for passion, ambition and open-mindedness. While we evolve in a demanding and ever-changing industry, we cultivate a friendly workplace where team spirit and respect guide our daily routine, and where the diversity of our people and their skills create a nourishing experience for all of us.Please note: TotalEnergies is unable to sponsor employment visas or consider candidates on time-limited visa status for this position.Ready to Power the Future of Energy Trading?Apply now and be part of a team that's shaping the future of low-carbon energy.