Job Opportunities in the Daphni Portfolio


Senior Data Scientist

Back Market

Back Market

Data Science
Posted on Friday, July 5, 2024
Back Market is the world’s leading refurbished electronics marketplace with a team of more than 650, powering operations in 16 countries (and counting!).

Back Market is undergoing meteoric growth and has raised $884 million, with a valuation of $5.7 billion. Our mission is simple: empowering people to buy tech sustainably by offering folks a high-quality, accessible, and more eco-friendly alternative to buying new electronics. Why? Refurbished tech helps lower our collective environmental impact.

Be part of a great and growing adventure that will change the way the world consumes tech.

As a member of the Bureau of Technology, your mission will be to design, develop, and implement AI-driven solutions to enhance our marketplace. You will join our AI team, which functions as our Data Science & Machine Learning incubator, where we explore new AI applications and bring the most promising ones to production.

Currently, our primary focus is on utilizing generative AI at scale to address needs related to customer care (sentiment analysis, agent helping tools, etc.) and improving the management of our catalog.

Here is an overview of what we are currently doing:

  • https://engineering.backmarket.com/how-machine-learning-boosted-available-cash-flows-for-our-sellers-eddd697269fc
  • https://www.linkedin.com/posts/florianvaleye_generativeai-llm-ai-activity-7137833031997779968-CHLl?utm_source=share&utm_medium=member_desktop
  • https://www.linkedin.com/posts/florianvaleye_dataengineering-ai-largelanguagemodel-activity-7141117138756444160-fDDP?utm_source=share&utm_medium=member_desktop

What you will do:

  • Own the results of high-impact projects covering problem definition, metrics development, data extraction and manipulation, implementation of analytical/statistical models and presentation to stakeholders
  • Identify company problems and opportunities that can be tackled through AI; develop evidence of the validity and utility of data science solutions (e.g. through prototypes or MVP); collaborate with relevant teams to design and build the product features that leverage it
  • Hands-on development, productionisation, and operation of machine learning models and pipelines at scale, including both batch and real-time use cases, structured and unstructured data
  • Contribute to the development of the AI community within the company by promoting best practices and sharing your work internally to raise awareness about AI capabilities
  • Regularly present work internally (demo, internal conferences,...) to technical, engineering and product stakeholders to acculturate the business to AI related topics

Your Background:

  • At least 6 years of industry experience in data science or related fields, with a Master’s or PhD in a quantitative discipline such as Statistics, Economics, Sciences, or Engineering
  • Proven track record of leading impactful initiatives to develop data science products that solve business problems
  • In-depth understanding of the machine learning lifecycle, including best practices, algorithms and domains (e.g. time series prediction, NLP, computer vision and recommendation)
  • Strong coding skills in Python and familiarity with software engineering principles of testing, code review and deployment
  • Experience in designing, prototyping, scaling and launching data science products, with a focus on balancing execution, research and evolutionary design
  • Proven ability to mentor and develop scientists, engineers and peers
  • Strong communication skills to effectively convey complex technical concepts to audiences with varying levels of technical expertise
  • Curiosity, proactivity, humility and team spirit

Recruitment process:

  • Call with Marie, our Tech Talent Advisor, to get a better understanding of your search
  • Homework
  • Technical interview with Romain, one of our Data Scientist and Vlad, one of our ML Engineers
  • Team Fit with Aurélien (Engineering Manager) and Anne Sophie (Group PM)
  • Culturally Fit


  • A meaningful job: you will help avoid thousands of tons of electronic waste and fight against planned obsolescence. It counts!
  • A meaningful company: we became a mission-driven company in January 2022.
  • Be part of a worldwide growing company based in Europe, the USA and Asia to face great challenges : you will have the freedom to innovate and adopt new ideas!
  • Work alongside passionate experts: who will share their knowledge and help you develop and grow in your career.
  • Grow your career: with a flexible career path and a dedicated Learning & Development team. Back Market will help you evolve with personalized internal trainings and external handpicked providers from day 1!
  • Leadership Academy by Back Market:“be a coach not a dictator” is at the core of this program ! We train and enable all our leaders to support their team towards achieving goals. Be a manager at Back Market is an unique experience we take by heart.
  • An attractive salary, equity and a host of benefits including : Lunch voucher, health insurance, relocation package, paid time off for activism in your community, parental benefits, flexible hours, etc…
  • One Loving Tribe: you will have the opportunity to work in a fast-paced, open-minded and friendly environment.
  • Be part of one of our Employee Resource Groups createdaround shared identities, common backgrounds and/or special interests crafted to be a safe space and an expressive outlet.
  • Several internal events: The Monday Brief (weekly)/ The Somehands (monthly)/ The All Hands (annual).
  • We’re here to SABOTAGE: It’s our mantra. It keeps us focused on what we aspire to be: a little bit sneaky, always smart, kinda frugal and constantly conspiring to create maximum impact.

Back Market is an Equal Opportunity Employer which means we pledge to not discriminate against employees based on race, color, religion, sex, national origin, age, disability or genetic information.. If reasonable accommodations are needed for the interview process, please do not hesitate to discuss this with the Talent Acquisition Team.

Back Market is helping to address one of the biggest challenges of our time: climate change. We take this so seriously that we were awarded status as a “Société à Mission”, or company with a social mission, by the French government. We know we can’t tackle a global problem without a globally representative team so we are committed to embedding diversity, equity and inclusion principles in every aspect of our organization. But more importantly, being One Loving & Free Spirited Tribe is in our DNA as it is one of the five foundational values of our company since we got started way back in 2014. We are committed to hiring and supporting diverse teams of people from all backgrounds, experiences, and perspectives. We know our lofty goals cannot be reached unless everyone has a seat at the table along with the resources and opportunity to grow.