Senior Software Engineer - B2C services

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. Are you ready to join us? 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 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 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 make sure your technical direction is aligned 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. Driven by the desire to craft outstanding products, you understand how to deliver seamless user experiences at scale. 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). 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 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. But 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 pro