Numberly is recognized as one of the world's leading data marketing specialists with nearly 500 employees and 8 offices worldwide serving more than 500 blue-chip clients (L'Oréal, Moleskine, Campari, Colgate, Nestlé, HSBC...). By putting technology to work for brands and consumers, Numberly is at the heart of business growth and everyone's desire for more sustainable and relevant marketing. Numberly leverages the latest advances in data processing, analysis and activation, incorporating artificial intelligence technologies. This approach is part of a virtuous circle in which business competitiveness goes hand in hand with greater respect for privacy and data protection.

Job Description

Are you looking for a rewarding internship in a supportive agency environment? Would you like to join a dynamic, diverse team from a wide range of backgrounds?
Join Numberly’s Media Trading team, made up of experts in real-time advertising activation.

We are looking for a Media Trading & Business Development Intern to support the growth of our Retail Media activity. Retail Media consists of delivering data-driven advertising campaigns for brands within retailers’ and e-commerce environments, enabling brands to reach consumers at key moments along the purchase journey across our international markets.

Your responsibilities

• Contribute to the development of media strategies aligned with client objectives: branding, acquisition, and retention.

• Participate in defining the most relevant activation levers and formats. You will quickly become proficient across multiple advertising platforms.

• After comprehensive training, take part in the operational management of campaigns across several display and social buying platforms (e.g. Meta Ads, Google Ads, Amazon Ads, etc.).

• Collaborate on the launch and ongoing management of campaigns in coordination with sales, technical, design, data, and project management teams.

• Participate in performance analysis, campaign optimization, and real-time KPI monitoring.

• Contribute to the preparation and presentation of post-campaign reports to clients.

• Conduct ongoing monitoring of the Retail Media ecosystem and regularly produce content on new products, trends, and market innovations.

• Support the development of market-specific prospecting strategies, tailored to local challenges and opportunities.

Qualifications

• You are currently pursuing a Master’s degree (Bac +5) in a business school, university, or engineering school, possibly with a specialization in digital marketing, marketing, statistics, data analysis, or big data.

• You have a strong interest in data and stand out for your analytical skills.

• You are detail-oriented, well organized, and able to work efficiently.

• You have strong interpersonal skills, including the ability to listen and work collaboratively, both internally and with clients.

• You speak English fluently, French is a plus.

#Programmatic #MediaTrading #Performance #Innovation

Start date: January, February, or March 2026
Duration: 5 or 6 months
Compensation:

• €1,300 gross per month (M1 – gap year internship)

• €1,600 gross per month (M2 – final-year internship)

Additional information:

• At Numberly, we share a passion for transmission: weekly internal talks, meetings with expert professionals in their field, continuous learning.

• Fast and powerful onboarding, in particular thanks to: the mentor assigned to each newcomer; to Live my life in different teams; Happy Meetings: monthly internal meetings to meet up with all our teams around the world and share group news.

• We cultivate freedom of speech which allows everyone to participate in the development of the group.

• We act positively on our ecosystem through 1000mercis impacts and via our activities which create value in the Open Internet and contribute to the enrichment of Open Source.

• Numberly is an actor of diversity with a gender equity score of 97/100.

• Numberly is ISO/IEC 27001:2023 certified; this certification recognizes compliance with the highest standards in information security.

• Numberly is an international environment with more than 30 nationalities in our teams.

• Offices in the image of each of the teams, a generous library, a large fully equipped music studio, two cats, selective sorting and vermicomposting, the possibility of bringing your pet and space for bicycles! In each kitchen: coffee, tea, unlimited infusions and also mystery lunches, Wellpass (ex-Gymlib) partnership, sports classes and parties (often in disguise).

• Possibility of hybrid remote work schedule.

• Swile card (meal vouchers).

• Possible mobility in our various offices abroad.

• Numberly welcomes people with disabilities.