Job Opportunities in the Daphni Portfolio


Senior I iOS Engineer - Design System

Back Market

Back Market

Software Engineering, Design
Barcelona, Spain
Posted on Sunday, May 5, 2024
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 Design System team

The Design System team at Back Market is tasked with enabling our product, engineer, and design teams to build consistent, high-quality user experiences on our product platforms.

By coupling our respective know-how, we provide expertise on Web & native apps engineering, brand, usability, and accessibility matters as part of our day-to-day. We’re responsible for maintaining and improving our component library, its documentation and development environment, as well as the workflows and automation that allow us to keep design and front-end teams aligned and able to work together smoothly.

The role

We are looking for a Senior iOS Engineer to join the Design System team composed of frontend engineers, product designers, a product manager, and an engineering manager. We have the mission in 2024 and beyond, to provide the best features, services & user experience for our app users.

The engineer will contribute to the development and operations of our Design System:

  • Improve and automate the delivery and maintenance of our components & assets
  • Heighten the usability of the Design System by iteratively improving our documentation, guidelines, internal design system apps
  • Give direct support & design system advocacy to our internal users (engineers, designers)
  • Help us innovate and scale to enable Back Market to expand as fast as ever on the iOS app. Identifying further opportunities for the Design System to scale

The Responsibilities

  • Building, maintaining, and improving a robust design system for the iOS app, along with colleagues (we are also looking for a Senior Android Engineer)
  • Ensuring smooth delivery of our iOS codebase and supporting the iOS Chapter in planning, executing, or automating migrations
  • Building and maintaining automation and other tools that allow us to operate at a larger scale (DevOps: automation of tokens delivery, assets, plugins, CI/CD)
  • Maintaining our iOS codebase and tooling, and developing a joint vision with the iOS Chapter on our technological choices
  • Improving our documentation platform and its content to ensure an easy understanding of the Design System and to increase its adoption
  • Supporting contributions on the native apps perimeter, through facilitation, support, code reviews, and developer experience improvements
  • Helping us ensure our experiences adhere to accessibility standards and other relevant practices

We're seeking a candidate who demonstrates:

  • Proficiency in addressing Design System challenges or significant contributions to Design Systems, advanced UI components, and animations.
  • Solid experience in Swift, SwiftUI, UIKit, and the creation of iOS libraries or native APIs distributed via Swift Package Manager.
  • Knowledge in areas such as accessibility, iOS performance, QA, code generation, and code analysis.
  • Comfortability with APIs, CI environments, and cloud platforms, with the ability to establish seamless connections with code repositories.
  • A passion for coaching and mentoring team members, fostering growth regardless of seniority, while maintaining a humble and learning-oriented approach.
  • Ability to facilitate effective communication between designers and engineers, conveying technical concepts to a non-technical audience.
  • Inherent curiosity, idealism, and a responsible challenge to the status quo.
  • Proactive advocacy for your impact, coupled with autonomous communication of progress, learnings, and goals to the company and beyond.
  • Professional proficiency in English, as our team operates on an international scale.


  • 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.