The Tech Lead / Senior Software Developer is responsible for providing technical leadership while remaining actively involved in software development. The role oversees the analysis, design, development, deployment, operation, and continuous improvement of ENGIE B2B IT applications, ensuring solutions are secure, scalable, maintainable, and aligned with business needs and corporate architecture standards.

Key Responsibilities

• Lead the technical evolution of applications, translating business priorities into technical solutions and delivery plans.
• Design and develop critical components, APIs, integrations, automations, and complex enhancements.
• Coordinate and organize the technical work of developers and external providers.
• Ensure software quality through architecture reviews, code reviews, testing strategies, security controls, and documentation.
• Manage technical debt, platform obsolescence, performance, resilience, and maintainability.
• Monitor service health and lead incident response, root cause analysis, and preventive actions.
• Resolve complex production issues involving code, data, integrations, and infrastructure.
• Improve deployment, monitoring, support, change management, and DevSecOps practices.
• Provide technical guidance to business stakeholders and Digital & IT leadership regarding feasibility, risks, effort, and roadmap prioritization.
• Coach and develop team members through mentoring, knowledge sharing, and technical leadership.
• Support corporate policies related to Health & Safety, Diversity, Cybersecurity, Sustainability, Ethics, and Compliance. 

Required Qualifications and Experience

• University degree in Computer Science, Telecommunications, Software Engineering, or related field (or equivalent professional experience).
• Extensive experience as a Senior Software Developer with proven technical leadership responsibilities.
• Approximately 6+ years of relevant experience in solution design, software development, production support, and incident management.
• Intermediate to advanced English (B2 minimum; C1 preferred for international collaboration).