🌍 Customer Success / Account Management Intern – International Clients

Join OneFlash, a fast-growing startup in the heart of Paris. As a Customer Success / Account Management Intern, you will manage a portfolio of international B2B clients, handle daily client requests, track performance metrics, and contribute to account plans. You will also coordinate on-site client activations and contribute to improving internal tools and processes. This is a 6-month full-time internship starting in August 2026.

• Gérer et soutenir un portefeuille de clients B2B internationaux, en assurant une communication efficace et en répondant à leurs demandes quotidiennes.
• Suivre les indicateurs de performance et les données d'utilisation, en transformant les informations en recommandations exploitables.
• Identifier les opportunités de vente additionnelle ou de renouvellement, et contribuer aux plans de compte.
• You’re currently in Master 1 or Master 2 (business school, university, or equivalent).
• You’re looking for a 6-month full-time internship starting August 2026.
• You have a first experience in customer success, account management, or operations.
• You’re fluent in English (mandatory – you’ll work daily in English).
• You speak German / Swedish / Spanish as a strong plus.
• French is optional but appreciated for daily team interactions.
• You’re autonomous, structured, and proactive — capable of juggling multiple priorities.
• You have great communication skills and empathy, and love building long-term relationships.
• You’re comfortable with digital tools (Excel, Notion, HubSpot/CRM, etc.).
• You’re curious, resourceful, and want to grow in a fast-moving, international startup environment.

Pourquoi nous rejoindre ?

• Be part of a young, ambitious, and international team of 30 people.
• Get real responsibilities from day one — and make a visible impact.
• Work at Station F, the world’s biggest startup campus, in the heart of Paris.
• Join a company expanding fast across Europe with opportunities to travel.
• Enjoy regular team lunches, afterworks, events, and learning sessions.