Seller Onboarding and Support Intern

Backmarket; Paris; On-site; EUR 10,000 - 13,000; Full time

Job summary

Back Market is seeking a motivated Seller Activation Intern to join our Seller Success team in Paris. You will help onboard thousands of sellers, prioritize opportunities, and support cross-functional projects that improve activation efficiency.

You’ll use Salesforce and Excel to analyze seller data, build reports, and communicate with teams across Europe and the US. This 6-month, full-time internship starts January 2027 and offers hands-on experience in a fast-growing e-commerce company.

Qualifications

• Seeking a 6-month full-time internship (Gap Year or End of Studies welcome).
• Fluent English to interact with international sellers.
• Excel proficiency including pivot tables and data analysis capabilities.
• Highly organized with exceptional attention to detail for high-volume, process-intensive workflows.
• Passionate about business development/sales with a keen eye for identifying opportunities.
• Structured approach to work with ability to prioritize effectively in fast-paced environments.

Responsibilities

• Qualify and prioritize thousands of potential sellers by business potential and strategic fit.
• Provide professional onboarding support via Salesforce to sellers.
• Analyze seller profiles and create strategic reports to identify opportunities.
• Take ownership of end-to-end improvement projects with cross-functional teams.
• Communicate with sellers across Europe and the US to drive growth.

Skills

English fluency

Excel pivot tables

Salesforce

Data analysis

Process improvement

Education

Enrolled in a French university or school

Tools

Salesforce CRM

Job description

Hi, we're Back Market. We're here to help make tech reliable, affordable, and better than new . We're a global marketplace for refurbished devices, helping lower our collective environmental impact by providing trustworthy, affordable tech with 92% less carbon emissions than new. Yep, you read that right. Turns out refurbished tech is way better for the planet than new. In fact, With every device purchased on Back Market, our positive impact on the planet grows. From our Customer Care representatives to our software engineer, every individual at Back Market cuts the planet - and consumers - a break. Our mission is simple: to do more with what we already have. Are you ready to join us?

JOB DESCRIPTION:

Join Back Market's dynamic Seller Success team as the driving force behind our seller ecosystem! As Europe's leading refurbished electronics marketplace, we're revolutionizing how businesses connect with millions of customers across the EU, the UK and the US. As a Seller Activation Intern (Onboarding & Seller Support) , you'll be at the heart of our growth strategy, transforming thousands of potential sellers into thriving Back Market partners. You'll master the art of business prioritization, relationship building, and data-driven decision making while gaining hands-on experience in one of Europe's fastest-growing tech companies. This isn't just about processing applications - you'll be identifying high-potential business opportunities, strategically prioritizing sellers based on market potential, and directly impacting our marketplace expansion across Europe and the United States. At the same time, you'll play a hands-on role in improving how we work - collaborating with cross-functional teams to spot inefficiencies in our seller activation processes and helping design better, more scalable solutions.

YOUR MISSION (IF YOU ACCEPT IT):

• Strategic Seller Management: Navigate through our extensive database of thousands of potential sellers, qualifying and prioritizing them based on business potential and strategic fit
• Business Development : Provide professional consultation and support via Salesforce, guiding sellers through our comprehensive onboarding journey from initial sign-up to successful activation
• Data-Driven Prioritization: Leverage Excel and Salesforce to analyze seller profiles, create strategic reports, and identify the most promising business opportunities
• Projects : Take ownership of improvement projects end to end. You'll get your hands dirty identifying pain points, spotting repetitive tasks ripe for automation, and driving solutions from idea to implementation with the help of your manager - not just flagging issues, but fixing them
• International Impact: Communicate directly with sellers across Europe and the US, building strong professional relationships that drive business growth

YOU ARE IN THE RIGHT PLACE IF:

• Seeking a 6-month full-time internship (Gap Year or End of Studies welcome)
• Fluent English - you'll be the voice of Back Market to international sellers
• Excel proficiency including pivot tables and data analysis capabilities
• Highly organized with exceptional attention to detail - you'll manage high-volume, process-intensive workflows
• Passionate about business development/sales with a keen eye for identifying opportunities
• Structured approach to work with ability to prioritize effectively in fast-paced environments

BONUS POINTS:

• French language skills
• Salesforce experience or CRM familiarity
• Previous commercial or e-commerce experience
• Proactive mindset with initiative for process improvements
• Additional European languages

IDEAL PROFILE:

We're looking for ambitious, friendly yet professional students who are genuinely excited about sales, business development, and e-commerce - and who don't just want to observe, but to build. The ideal candidate is curious about how processes work, quick to spot inefficiencies, and motivated to own solutions from start to finish. Whether you're taking a gap year or completing your studies, what matters most is your motivation, business acumen, and eagerness to make a real impact.

ABOUT THE INTERNSHIP:

• Starting date: January 2027
• Duration: 6 months (until June 2027)
• Schedule: Full-time (35H/week)
• Location: Paris, France
• Contract: Internship agreement from your French school required

RECRUITMENT PROCESS:

• Skills fit interview with the direct manager (Reviewing the job description and missions, your CV and past experiences/projects)
• Video-call HR Interview with the Talent Acquisition Specialist
• Cultural fit interview with another person in the team

WHY SHOULD YOU JOIN US ?

At Back Market, we're committed to hiring and supporting diverse teams of people from all backgrounds, experiences, and perspectives - it's one of the reasons we're such a high-scoring certified B Corp company (93.2). No matter