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Job Description

As part of Adevinta’s central teams, the Trust and Connecting area offers expertise and solutions for solving user and business problems about trust & transactions, to help our millions of customers trade safely online every day.


Within Trust and Connecting, Serenity team plays a key role in helping us achieve our ‘most trusted’ goal as they are building the global fraud detection and moderation component that will cater to our marketplaces globally. Serenity has had a very successful launch; it’s deployed in 6 countries and is utilising the latest machine learning techniques to provide a safer experience for over 12 million customers in the last 6 months alone. We have many interesting challenges on the horizon and need outstanding team players to join us as we scale. This position is located in Paris 10th, within Leboncoin’s office; part of the Adevinta family. Our team is distributed in Paris, Vienna and Barcelona.


  • Building and maintaining a state-of-the-art scalable system within an international team counting seven nationalities.

  • Owning the Serenity infrastructure and ensuring future evolutions.

  • Being part of a cross-functional team that works with full ownership of the solutions (from ideas to productions & operations), meaning you’ll directly impact our roadmap and help shape our ways of working by keeping building our reliable, mission-critical moderation platform.

  • Operating and maintaining our existing infrastructure (1300 Kubernetes pods, EC2, large RDS DB, large Elasticsearch clusters, …).

  • Ensuring that our CI/CD gives the best possible developer experience.

  • Continuously monitoring the health and quality of our systems and ensuring they’re stable and secure.

  • Encouraging and building automated processes wherever possible.

  • Constantly improving our working process and communicating best practices.

  • Helping design the next generation service as a platform.

  • Keeping on top of the latest technologies in distributed systems and cloud tech.


  • A strong problem-solver

  • Excellent written and oral communicator (English B2+ required)

  • Strong understanding of a cloud platform (especially AWS)

  • Experience with distributed computing technologies (Distributed Architectures & Microservices Architectures)

  • Collaborative work experience with geographically distributed teams would be a big plus

  • Deep understanding of systems design, algorithms, and data structures

  • You’ve already worked with some of the technologies we are using every day (AWS, Kubernetes, Kafka, Helm, Elastic Search, Redis, Postgres, Datadog, Loki, DynamoDb …) and are familiar with CI/CD concepts (we are using Spinnaker, Github Enterprise, Travis CI, Artifactory)

  • You can write in Python 3 or in Bash

Additional Information

  • Smart working 

  • Flexible working hours

  • Personal training budget to join conferences and events

  • Young, challenging and international teams of experts

  • Work with cutting edge technologies

  • Welfare & Wellbeing initiatives

  • Free break with coffee and fruits

  • Ticket restaurant

  • Certified Great Place To Work

Adevinta is an equal opportunity employer and values diversity in our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status or disability status. If any of the above ticks your boxes, then why not Apply Now to find out more



The health of our employees is very important to us. Due to Covid-19 all of our employees currently have the option to work from home full-time or, depending on the local situation and government regulations, they may go into the office following all safety protocols. This means that our interviews are currently taking place virtually. We are reviewing the situation on a regular basis and want to ensure that we follow all governmental guidelines and put the health of our people first.

Company Description

Adevinta, operates digital marketplaces in Europe and Latin America. Our leading local brands include Leboncoin in France, InfoJobs in Spain, Subito in Italy, Jofogás in Hungary, and Segundamano in Mexico, among many others. Adevinta is in the constant process of acquiring new businesses and procurement plays a key role in the integration of these businesses into the global operations and the identification of synergies.


We want to make a positive change in the world by helping everyone and everything find new purpose. We believe every house can be a home, every person has a role to play, and every object can live a second life.