Senior Software Engineer - Order Management System, Paris

Overview 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.

Our mission is simple: to do more with what we already have. Our technology department, known as the Bureau of Technology (BoT), is at the heart of Back Market. It consists of over 30 dynamic product teams that are engaged in developing and managing services to deliver significant value to our customers and suppliers. These teams are supported by our Platform group, which includes more than 10 specialized teams addressing cross-cutting technical issues to enhance our operational capabilities. In addition, we have groups dedicated to sharing knowledge across technical disciplines such as security, backend, frontend, AI, and mobile, serving as hubs for collaboration and professional development.

About The Team The Order Management squad ensures that transactions are facilitated swiftly and accurately by evolving the end-to-end order lifecycle; enabling new products, partnerships, and services while embedding taxes, fee management, and money return processes as integrated parts of an Order Management System.

Role As a

Software Engineer , you will work closely with all members of your squad and the Staff engineer of your group. Bi-monthly rituals with your group and the Chapter will allow you to share what works for your squad, learn what works for others, and align your technical direction with the overall vision.

What You Will Do In This Role We’re looking for

versatile

engineers who show strong ownership and are motivated to take on new challenges across the technical stack while helping us move our technology forward. You will be working in an agile

build it and run it

environment where engineering teams build, launch, monitor and support the product that they own. You should have a desire to craft outstanding products and deliver seamless user experiences at scale. We are looking for

passion

in creating systems by producing clean, consistent and well-organised code. You should be a good team player who supports colleagues and fosters a learning and sharing environment.

English must be a no-brainer

as you will join an international team distributed in different locations around the world (US/FR/ES/JP).

Our Technical Environment Backend stack:

Python - FastAPI, SQLAlchemy, Celery, Golang, Django (being phased out)

Frontend stack:

VueJS, Typescript, Nuxt, Revolve (our design system)

Data:

PostgreSQL, Redis, Kafka, RabbitMQ, BigQuery

Infrastructure:

GCP, Kubernetes, Docker, Datadog, ArgoCD, CircleCI, Github

Main Technical Challenges Traditionally based on a monolith, Back Market's technical stack has been undergoing a transformation into a distributed and service-oriented architecture. Building a set of efficient and loosely coupled services, with teams controlling their own release schedules and data, is a key focus. Platform teams aim to provide a scalable, secure platform to increase developer productivity.

Senior I Engineer: Produce, Innovate&Share

Facilitates meaningful discussions around complex issues.

Suggests or makes improvements for existing designs and architecture for quarter-bounded projects or mission-critical areas in their squad.

Explores technologies with sizable potential impact for the team.

Contributes actively to high-impact chaos mitigation.

Identifies and advocates for prioritization of tasks that can optimize delivery.

Backend (Senior)

5+ years backend development experience

Strong system design skills

Experience with microservices, distributed systems

Deep understanding of data architecture and APIs

Experience with performance optimization and scalability

Fullstack Mindset

End-to-end product thinking

Curiosity about the full stack

Strong collaboration and communication skills

Ability to navigate ambiguity across technical domains

Recruitment Process

HR screening - (1h)

Coding&Testing module - Backend (60 min)

System design feature (60 min)

Data module (45 min)

Tech leadership + Meet your manager (75 min)

BM Values (45 min)

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 a high-scoring certified B Corp company.

Benefits No matter your role and seniority level, you’ll enjoy impact-driven work with hands-on career development in an innovative, driven, and fast-paced environment — with benefits to match, like:

A mission-driven work environment where your day-to-day makes an impact on the planet.

Hybrid work environment, with 2 remote days a week and 1 remote work week per quarter, plus 3 flex days.

Employee Resource Groups, including mentorship programs, comprehensive accessibility policies, and cultural competency training.

We strive to create a workplace that embodies the world we’re trying to change. We’ve embedded our diversity, equity, and inclusion principles into our DNA — from dedicated staff to employee resource groups to our company values. If reasonable accommodations are needed for the interview process, please discuss this with the Talent Acquisition Team.

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