Senior Backend Engineer II

About Back Market 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. Department and Team The 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 effectively supported by our Platform group, which includes more than 10 specialized teams addressing cross-cutting technical issues to enhance our operational capabilities. In addition to these functional teams, we have established numerous groups dedicated to sharing knowledge across various technical disciplines, such as security, backend, frontend, AI, and mobile. These groups serve as hubs for collaboration and professional development, providing ample learning opportunities and fostering a culture of continuous improvement. The B2C Services team is a transversal squad with the mission of revolutionizing refurbished tech through the most convenient Services. The team makes services affordable, desirable, and the new industry standard, strengthening key markets, fostering loyalty, and dominating the competition in the most sustainable way. Position: Senior Backend Engineer II (B2C Services) As a Senior Backend Engineer II, 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 Backend Chapter will allow you to share what works for your squad, learn what works for others, and make sure your technical direction is aligned with the overall vision. Main technical challenges: Traditionally based on a monolith, Back Market’s technical stack has been undergoing a radical transformation in recent years into a distributed and service‑oriented architecture. This transition provides an opportunity to modernize the platform, raising engineering standards. Building a set of efficient and loosely coupled services is one of the main challenges to face for the years to come. Teams are excited to independently control their release schedules, manage their data, SLAs, tools, and ultimately be responsible for their own service‑offering. Meanwhile, Platform teams are working to provide a scalable, consistent and secure platform, one that makes engineering teams more productive. What You Will Do In This Role We are looking for a Senior Backend Engineer to help us build & operate a set of efficient, high cohesion, low coupling services with security and privacy by design in order to support the growth of the business. 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. We are looking for passion in creating systems by producing clean, consistent and well‑organised code, as well as a good team player supporting colleagues and creating a learning and sharing environment English must be a no‑brainer as you will join an international team dispatched in different locations around the world (US/FR/ES/JP). Technical Environment Application: Python - FastAPI / SQLAlchemy / Celery / Golang / Django (being phased out) Data: PostgreSQL / Redis / Kafka / RabbitMQ / BigQuery Infrastructure: GCP / Kubernetes (GKE) / Docker / Datadog / ArgoCD / CircleCI / Github Recruitment Process Call with one of our expert tech TA, 45 min Coding & Testing interview, 60 min System Design & API interview, 45 min Data Module, 45 min Tech Leadership interview, 45 min Meet your manager, 30 min Back Market Values fit interview, 45 min Hybrid mode: 3 days / week at the office (Monday is mandatory) Seniority Level Mid‑Senior level Employment Type Full‑time Job Function Engineering and Information Technology Industries Internet Marketplace Platforms Location Levallois-Perret, Île-de-France, France #J-18808-Ljbffr