OneFlash has built one of Europe’s largest networks of portable power bank sharing stations — helping people stay charged wherever they go: shopping malls, airports, events, and many more.
Voted among the Top 40 most promising startups by Station F, OneFlash is growing fast and expanding across Europe (France, Spain, Nordics, DACH, Benelux).
We’re now looking for a Customer Success / Account Management Intern to join our international team and support our key clients abroad.
Your goal: make sure our international clients are happy, their operations run smoothly, and OneFlash becomes an essential service for their visitors.
You’ll join the Ops & Customer Success team, working closely with our COO and international partners.
Your responsibilities:
Manage and support a portfolio of international B2B clients (shopping malls, airports, events, leisure venues, etc.).
Handle daily client requests (reporting, on-site operations, small logistics follow-up) and ensure proper communication with the Ops team in France.
Track performance metrics and usage data, turning insights into actionable recommendations.
Build and share monthly dashboards and performance reports for clients.
Identify opportunities for upsell or renewal, and contribute to account plans.
Coordinate on-site client activations, events, or trade fairs — possibly travelling in Europe to represent OneFlash.
Contribute to improving internal tools, documentation, and customer processes.
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 January 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 Spanish (ideally), or German / Swedish 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.
Introduction call (15 min)
Interview with Jérémy Perono – COO
Offer
