Job Opportunities in the Daphni Portfolio


Senior Full-Stack Engineer Global Growth

Back Market

Back Market

Sales & Business Development
Paris, France
Posted on Saturday, December 23, 2023
Back Market is the world’s leading refurbished electronics marketplace with a team of 650 people, powering operations in 21 countries (and counting!).

Named one of the World's Most Innovative Companies by Fast Company in 2019 and again in 2021, our mission is simple: empowering people to consume 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 . We have indeed contributed to avoid the production of more than 1,000,000 tons of CO2e worldwide since our launch in 2014.

Be part of an exciting and growing international adventure that will change the way the world consumes tech.

The Global Growth team is helping Back Market increase its impact and reach by launching our services in new countries, and implementing country-specific features.

We adapt our product to local needs and culture in markets where significant growth is still expected in Europe, North America, and APAC. We are in close contact with business developers to identify what our local customers and sellers need most, and implement it.

The trifecta (Product Managers, Engineering Manager, and Business Developers) refines these projects, and use data projections to define our priorities. Global Growth developers are entrusted to implement these features regardless of the functional or technical scope, as long as they comply with contribution guidelines.

Some examples of the work we did for the launch of Japan can be found in the following blog posts.

  • Handling multiple currencies with Django
  • Japan (re)launch

Engineering is located in Tokyo and Paris, and our Product Managers are located in New York, Singapore and Paris.

Job Description

Back Market is recruiting a Senior Full-Stack Developer who is interested in working on any aspect of our code base depending on the priorities. Your scope can be anything as long as we expect great impact from it.

Close collaboration with the teams owning the various parts of our services will be essential. Using Inner source practices to provide code that is reliable, readable, tested, and easily maintainable will be your everyday goal.

Depending on the changes to implement, you will potentially work with technologies or services you have no prior knowledge nor experience. You must see this as an exciting opportunity to be fit for this position.

As few examples of the latest work we contributed to:

  • Launching our APAC market place and Japan/Australia markets.
  • Supporting multi-format currencies, new payment methods, etc.
  • Connecting Australia to Shopify integrator to quickly increase our supply after the launch.
  • Building a Back Market application to connect with Next Engine Japanese integrator for helping our sellers listing their products on our market place seamlessly.
  • Localizing the front-end pages displayed to customers in US and Japan to increase trust in our website.

Who are you?

  • At least 3-5 years of experience as a talented developer
  • Experience with distributed systems
  • Previous experience with e-commerce or services facing high-traffic
  • Willingness to learn about technologies and features with no prior knowledge
  • Good knowledge of either JS and front-end technologies (VueJS, NuxtJS, etc...) OR Python and back-end technologies (Django, Flask, etc.) … and motivation to learn the other if not yet mastered
  • Basic knowledge of infrastructure technologies (AWS/GCP, SQL, etc...) and web patterns (CDN, caching, HTTP, etc...) is a plus
  • Sensibility to deliver optimized code that requires few resources to run and provides great performances
  • Rely on tests when writing code
  • Always crafts easy-to-understand code
  • Write extensive documentation and procedures when needed
  • Ability to work asynchronously with people in various time zones
  • Great verbal and written communication skills, in English at least (Japanese or Korean is a plus)
  • Interest in our tech stack : AWS/GCP, Kubernetes, Docker, APIs, Python, VueJS, Nuxt, Algolia, Datadog, Nginx, uWSGI

Recruitment process :

  • Phone screen with your future manager (30 min)
  • Technical screening (30 minutes)
  • Technical and fit test with our developers (2h)
  • Cultural fit with leadership plus one person from our product team (1h)


  • 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.