C++/Python Tech Lead – Energy Sector (F/M/X)
📍 Location: Vélizy-Villacoublay, France | 🕒 Full-time | 🛡️ Thales Group – Engineering & Energy Systems
🌍 Shape a Sustainable Future with Thales
Thales is a global technology leader in defense, aerospace, and digital security, with over 81,000 employees across 68 countries. Our mission? To deliver smarter, safer, and greener solutions through innovation in AI, cloud, quantum, cybersecurity, and 6G. We invest over €4 billion annually in R&D—and you can be part of the journey.
💡 The Opportunity: Lead High-Impact C++/Python Development
We’re hiring a Tech Lead Developer (C++/Python) to support a strategic energy program. You’ll help build a decision-support platform that determines optimal electrical network configurations in real time, as well as forecasting future states.
Based in our cutting-edge Vélizy campus just outside Paris, you’ll work in an agile team where innovation meets purpose.
🔧 Your Key Responsibilities
- Lead the design, development, and testing of scalable software components using C++ and Python
- Translate functional requirements into clean, efficient, and maintainable code
- Optimize performance through algorithmic enhancements and cache handling in C++
- Develop microservices and data quality algorithms using Python
- Guide Agile ceremonies and coach junior developers in best practices
- Implement and maintain unit tests and technical documentation
- Drive technical innovation, troubleshoot complex issues, and support continuous integration workflows (GitLab, Docker)
🎯 Your Skills & Experience
- Degree in Computer Science, Software Engineering, or related field
- Strong experience in C++ performance optimization, algorithm complexity, and memory management
- Proficient in Python for backend services, data processing, and scripting
- Familiar with operations research, heuristics, or energy systems modeling
- Experience with Agile development, CI/CD, GitLab, and Docker
- Passion for learning and applying new tools, libraries, and methodologies
- Excellent team spirit, communication skills, and willingness to share knowledge
🚀 What We Offer
- Competitive salary and full benefits package
- A vibrant, tech-forward environment with world-class infrastructure
- Access to Thales training academies and cross-sector opportunities
- An inclusive, flexible, and purpose-driven workplace
- Work-life balance and personal development support
🧭 Join Thales. Make an Impact.
By joining Thales, you’ll help develop smarter energy networks that support a sustainable future. This is your chance to grow technically while leading innovation with purpose.
