Consultant.e.s - Stage de fin d'études - Nantes – CIO – IA × RSE – Comment maîtriser coûts et empreinte environnementale d’un système d’IA générative? FinOps & GreenOps des SIA

About the Position

Consultant.e.s - Stage de fin d'études - Nantes – CIO – IA × RSE – Comment maîtriser coûts et empreinte environnementale d’un système d’IA générative? FinOps & GreenOps des SIA

• Type: Internship
• Location: Nantes, France
• Remuneration: EUR 1500 - EUR 1800 per month

---

Description of the Company

Join Wavestone, an international consulting firm that supports major strategic transformations.

We are Wavestone: passionate and solution-oriented experts who place the human at the heart of performance and growth. Ambitious and in full expansion, we continuously develop our portfolio of clients and projects, with an international scope and a genuine desire to generate a positive impact.

Are you a true team player, driven by strong values? Are you curious and determined, with the desire to learn every day? Are you the type to take on challenges without hesitation? Then you are in the right place. Join Wavestone and express your potential in a stimulating and collaborative environment, where we transform today's challenges into tomorrow's opportunities.

For more information, visit www.wavestone.com.

---

About the Role

Nantes Office / Business Unit:

In the Nantes office / business unit, you will work alongside 150 consultants on diverse client missions, fostering the development of your skills, soft skills, and understanding of the firm's expertise.

Our consultants support leading companies throughout the Grand Ouest region, supporting their local clients in their digital transformation projects and strategic decisions.

The Nantes office covers a wide range of Wavestone's expertise (technological, functional, and business) and offers the opportunity to participate in varied missions with high added value, from strategic framing to the operational implementation of projects.

We notably intervene in the following areas of expertise, organized into communities:

• Cybersecurity (CYB)

  • Cybersecurity Strategy and Compliance (risks, crisis management, privacy, critical infrastructures, regulations – ISO27001, NIS2, GDPR)
  • Securing Digital Transformation (Big data, Cloud, IoT, SOC, IT Security)
  • Digital Identity and Trust Services (IAM, CIAM, PAM, PKI, MFA, identity federation)
  • Audit, Penetration Testing, and Incident Response (pentest, PASSI audit, Redteam, forensics)

• Transformation of IT (CIO Advisory)

  • Data & AI: data governance, data/AI platforms, AI strategy and TOM AI, foundations and services (ML, OCR, LLM, agents), AI for employees (Copilot, Gemini), risks, compliance, and acculturation.
  • Cloud & Connect: cloud transformation, DevOps, automation, migration and adoption programs, infrastructures, and smart networks.
  • Future of Work: digital workplace (M365, Entra ID) and collaborative tools.
  • Boosting CTO: IT organization and TOM IT, ITSM/ESM, IT transformation, IT M&A, talent and skills management.
  • Sustainability: Green IT, ESG, digital sobriety, responsible data management.

• Data & AI

  • Data and/or AI Strategy, Organization, and Management: developing Data, AI, and Generative AI strategies, maturity diagnostics, use case mapping, structuring governance (committees, roles and responsibilities, compliance with AI Act / GDPR) and managing Data and/or AI programs.
  • AI Governance and Risk Management: risk analysis on AI and GenAI projects, updating internal processes and frameworks, assessing environmental, social, and HR impacts of AI systems, guiding usage (charters, responsible AI policies) and managing regulatory compliance (AI Act, GDPR, sectoral regulations).
  • AI × Cybersecurity: at the crossroads of our Data/AI and Cyber expertise, three angles covered: AI for Cyber (enhancing detection, SOC, and incident response with AI), Cyber for AI (securing market solutions, penetration testing, and Red Teaming AI, securing platforms and agents) and AI vs Cyber (awareness of new threats: deepfakes, CEO fraud, prompt injection, for management, SSI teams, and employees).
  • AI Adoption and Acculturation: supporting the deployment of Copilot M365, Gemini, and Claude (pilots, adoption waves, value and ROI measurement), user training, AI community animation, and acculturation of executives and managers.
  • Analysis, Deployment, and Implementation of AI Use Cases: framing and industrializing GenAI solutions, developing agents, multi-agent workflows, modernizing and automating business services and processes, etc.

Internship Topic:

Context

Generative AI consumes massive resources (water, energy, rare earths…) and generates potentially high variable operating costs (API LLM, GPU cloud, Copilot Credits…). Two converging pressures: financially, CIOs want to control AI costs and demonstrate ROI; socially, CSRD imposes increased transparency, and management sets digital sobriety objectives.

Wavestone Nantes won pioneering missions in 2025 on impact estimation, and a previous internship laid out measurement methods (EcoLogits, Boavizta, ADEME charts…). We must now go further: industrialize mitigation levers, link cost and footprint, and structure a unified FinOps + GreenOps service offering.

Objective of the Internship

Build Wavestone's repository of operational levers for reducing the costs and environmental footprint of AI systems (unified FinOps + GreenOps), and test it in real conditions.

Tasks to be Performed

Under the supervision of a consultant and the guidance of a manager, the intern may be required to perform some or all of the following tasks:

• Capitalize on existing estimation work: CodeCarbon, EcoLogits, Boavizta, Eco2AI, ADEME charts
• Establish a comprehensive matrix of mitigation levers: model choice (SLM), quantization, pruning, distillation, prompt caching, model cascading, routing, green scheduling, hosting provider choice
• Define an AI FinOps model: consumption tracking (tokens, credits, GPU-hours), internal rebilling, hard caps, budgeting
• Quantify the relative impact of each lever (€ and kgCO2eq) on a concrete use case (e.g., Cowork, RAG, agent)
• Build a reusable AI FinOps & GreenOps audit guide, with a dashboard for monitoring value / cost / footprint
• Test the guide on an internal POC or client mission and formalize actionable recommendations
• Contribute to commercial proposals and external pitches

---

Qualifications

Required Skills – Hard Skills

• Basics in Data, AI, or digital transformation
• Understanding of AI use cases in business
• Notions of Data & AI governance or operating models
• Basics in business analysis or organizational transformation
• Sensitivity to ROI, KPIs, and value creation issues

Required Skills – Soft Skills

• Intellectual curiosity and desire to learn
• Analytical and structuring mindset
• Ability to work in a team
• Good interpersonal skills and sense of service
• Interest in change management
• Fluency in oral and written communication

What You Bring

Must-Have

• Recent graduate from a top engineering or business school (Engineering Degree, PGE)
• Specialization or strong interest in Data, AI, or digital transformation
• First exposure (internships or projects) to transformation or business analysis topics
• Motivation to discover the consulting profession

Nice-to-Have

• Academic experience or internship on Data / AI projects
• Awareness of governance, responsible AI, or regulatory issues
• First experience in workshop facilitation or project management

Languages

• French: intermediate level required for this position
• English: minimum C1 level required for this position

---

Additional Information

Throughout your recruitment process, you will be accompanied by a recruitment officer.

The process takes place in three stages:

• A telephone exchange (15 min)
• A first HR interview (45 min)
• A final interview, organized on Thursday afternoons, with expert consultants.

Next interview session: Thursday, September 17, 2026.

Recruitments will start in August 2026.

All our internships are part of a pre-employment logic for a permanent contract.

All our professions are open to people with disabilities. Wavestone is an inclusive employer committed to equal opportunities. As part of this diversity and inclusion policy, Wavestone supports people with disabilities and/or requiring adjustments during their recruitment process and throughout their onboarding.

Nantes Office: 6 Rue Nathalie Sarraute, 44200 Nantes, France

---

Location of the Position

I am interested

Privacy Notice

I am interested

Share this Job