Strategy Consultant Internship - Sustainability Advisory - Paris F/H (September 2026)

Spécialiste de la biologie de la peau de de l’acide hyaluronique depuis 1978, les laboratoires FILLMED offrent aux praticiens esthétiques une gamme complète de produits injectables et cosmétiques pour améliorer l’apparence de leurs patients.

Pionnier en médecine esthétique et leader pour la revitalisation de la peau, Fillmed instaure une approche à 360° du rajeunissement facial, avec notamment : ART FILLER, gel d’acide hyaluronique indiqué pour corriger les rides et restaurer les volumes, NCTF solution polyrevitalisante pour améliorer la qualité de la peau, et la gamme cosmétique SKIN PERFUSION permettant un relais personnalisé et quotidien aux procédures esthétiques.

Fillmed s’engage également dans une beauté plus responsable. En accompagnant les femmes (et les hommes !) dans le « bien vieillir », en respectant ce qu’elles sont, ce qu’elles veulent devenir et en les aidant à se reconnecter à elles-mêmes. Célébrer la singularité de chacun, regagner en confiance et en estime de soi, c’est aussi le rôle de la médecine esthétique. Cet engagement se traduit notamment en Europe par le soutien à des associations aidant des femmes à rebondir suite à des évènements difficiles (perte d’emploi, cancer)

Fort d’un développement soutenu à l’international, le laboratoire dispose de 9 filiales (France, Espagne, Portugal, Italie, UK, Pologne, Belgique, Turquie et Chine) et exporte ses produits dans plus de 60 pays, avec une croissance particulièrement soutenue en Asie.

Description

Who we are:

Indefi is a fast-growing strategy consulting firm that serves financial investors (private equity specialists, generalist asset managers, wealth managers, etc.). Established in 2007, we are a team of 80+ consultants with offices in Paris, Lyon, Madrid and London.

We operate through three business units:

Sustainability Advisory: We help our clients define and deliver their Responsible Investment strategy and operating model. We work across the value chain to support investors and portfolio companies in defining and embedding their chosen approach to ESG and sustainability impact.

Private Equity: We help private equity firms make better investment decisions at every stage of the deal life cycle and build greater returns. We also advise on investment firm strategy and development, creating value through improved performance.

Corporate Strategy: We conduct strategic development projects for global asset managers, including business strategy, market entry, distribution strategy, new product development, non-organic growth, and investment process enhancement.

We are looking for interns to join our dynamic Sustainability Advisory team, where we combine strategic insight with deep sustainability expertise to shape the future of finance.

Your Mission

Working under the guidance of a Senior Consultant, you will contribute to high-impact projects that span a wide range of complex sustainable finance topics for asset owners, asset managers, and portfolio companies. Your responsibilities may include:

Designing sustainable finance strategies, including climate and biodiversity integration

Supporting the launch of impact funds

Evaluating companies on ESG (Environmental, Social, Governance) and impact criteria

Conducting strategic and sustainability due diligence on SMEs

Preparing strategic recommendations for C-level decision-makers

Contributing to the growth and development of our Sustainability Advisory practice

Your Profile

We are looking for a curious and motivated team player with a strong academic background and a genuine interest in sustainability:

About to graduate from a top business or engineering school, looking for your end-of-studies internship

Available for 6 months starting in September 2026

Prior experience in strategy consulting, asset management / private equity and/or their sustainability/ESG teams

Passion for sustainable finance and social and environmental issues

Fluent in both French and English (daily working languages); additional European languages such as German, Spanish or Italian are a plus

Strong analytical and presentation design skills, business acumen, and a problem-solving mindset

Proactive, eager to take on responsibility quickly, with an entrepreneurial spirit and the drive to make a difference

Recruitment Process

Three rounds of interviews with our senior team, including case studies to assess your analytical and strategic thinking

Why Join Us

Purpose-driven work with a talented, multicultural team that shares strong values: collaboration, curiosity, impact, and entrepreneurship

Career development through a structured onboarding program, individual mentoring and coaching, and tailored career paths

Direct exposure to clients and easy access to leadership

Social: regular team events, offsites, summer and winter parties, and more

Prime location: modern offices in the heart of Paris (8th arrondissement)

Attractive package: competitive internship compensation