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

Context and 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.

Responsibilities

• Lead the Transformation: Own the end‑to‑end system transition strategy for gas nomination and operations systems; drive decommissioning of the legacy platform with minimal business disruption; lead 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 strategy; establish development standards, best practices, and design principles; bridge the gap between business needs and technical solutions.
• Ensure Business Continuity: Guarantee 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 Globally: Partner 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.
• Accountabilities: Deliver 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.

Qualifications

• 7+ 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.
• 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.

Technical Skills

• .NET, ASP.NET, C#, Web API
• WPF and MVVM architectures
• WCF Services
• Oracle databases
• Cloud platforms: AWS and/or Azure
• NPM, web application development
• Version control: MS TFS, Git
• Object‑oriented design principles

Benefits

At TotalEnergies we recognize that you are more than what’s on your CV. If this opportunity excites you but your profile doesn’t exactly match the description, we encourage you to apply. We celebrate diversity and are committed to equal employment opportunity for all qualified applicants, regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, age, veteran status, disability, or any other protected characteristic. Reasonable accommodations are available for qualified individuals with disabilities and disabled veterans throughout the application process.

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. With 105,000 employees operating in more than 130 countries, the company is committed to delivering affordable, clean, reliable, and accessible energy. TotalEnergies Gas and Power (TGP) is the trading arm focused on low‑carbon energies (mainly gas, LNG, and power), driving growth and profitability while supporting the objective of carbon neutrality by 2050.

Culture

Our culture emphasizes expertise, entrepreneurial spirit, agility, and a purpose‑driven mindset. We foster a friendly workplace where team spirit, respect, and diversity of skills create a nourishing experience for all. Employees thrive in an environment that promotes innovation, risk‑management excellence, and continuous learning, enabling them to grow and achieve collaborative success while ensuring safety in all operations.