The right career for all

Created in 2006, leboncoin.fr is an exchange platform that simplifies access to consumption, favors local relations and makes digital a tool at the service of all. leboncoin is positioned as a digital, economic, societal, innovative player, always with the same objective: to facilitate all day-to-day exchanges for all of our users. We give a second life to thousands of goods. Behind this apparent simplicity, there is a fast-growing company with 1,400 employees, where it is good to work, a company that cultivates a responsible and collective HR approach. We are also the 1st site for sales between individuals in France and the 5th most consulted site in France.

What you’ll do ​& Who you are

🌍 Context

Our team’s core mission is to deliver critical multi-channel notifications — emails, SMS, mobile and web push. These services directly support the daily experience of millions of users.

We’re strengthening our team with a Senior Backend Go Developer to design, scale, and ensure the reliability of our high-performance, high-availability platform.

🚀 Your Mission :

As a Senior Backend Go Developer, you’ll play a key role in the development and evolution of our notification system. Your responsibilities will include :

• Designing and developing Go-based microservices

• Gradually migrating the existing system to a scalable and robust Go architecture

• Optimizing performance and scalability

• Developing key services: push notifications, subscription management, templating, tracking & analytics

• Integrating with the broader tech ecosystem (AWS, PostgreSQL, Redis, external APIs)

• Implementing monitoring solutions (Datadog, Kibana, Grafana, etc.)

👤 Profile :

Experience

• 5+ years of experience in backend development, including 3+ years in Go

• Strong expertise in microservices, REST APIs, and distributed systems

• Proficiency in SQL/NoSQL databases (PostgreSQL, Redis, MongoDB)

• Hands-on experience with Docker, Kubernetes, and CI/CD pipelines

• Solid understanding of messaging/pub-sub architectures

• Excellent analytical and problem-solving skills

• Fluent in French

Technical Skills

• Go expertise: goroutines, channels, idiomatic patterns, memory optimization

• Architecture: microservice design, REST APIs, messaging/pub-sub patterns

• Cloud & DevOps: AWS (SQS, SNS, RDS, ElastiCache), Docker, Kubernetes, CI/CD

• Monitoring & Resilience: Datadog, Grafana, Kibana

• Databases: PostgreSQL, Redis, MongoDB

Soft Skills

• Technical leadership and proactive mindset

• Strong collaboration skills in a cross-functional team

• Good communication and knowledge-sharing abilities

• Rigorous, autonomous, and solution-oriented

👥 Team & Organization

• Team: 5 developers (backend, web, iOS, Android) + Engineering Manager + Product Manager

• Methodology: Agile/Scrum (2-week sprints)

• Tools: GitHub, Slack, Confluence, Jira

• Systematic code reviews and pair programming

🌟 Why Join Us?

• Work on a mission-critical, high-impact platform used by millions

• Take part in ambitious migration and optimization projects

• Tackle exciting Go challenges in complex distributed systems

• Grow in a culture that values autonomy and professional development

📍 Location: Paris
📑 Contract: Permanent (CDI)

🚀 Level: Senior / Experienced

Adevinta is an equal opportunity employer and we value diversity. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status or disability status.

If you feel like you don’t meet all of the requirements for this role but are interested, please consider applying anyway. Research suggests that women and individuals from underrepresented groups may self-select out of opportunities if they don’t meet 100% of the job requirements. We strongly encourage people from historically excluded groups to apply and look forward to speaking with you.