Java SCALA Developer M/F

ExternaticLoire-AtlantiqueEURESpublished 06/01/2026
Must-have:GitDockerKubernetesBackendAgileCI/CDFinTech
Machine translation — original language: French.Show original

The accompanied company and the missions:

Join a fast-growing fintech and contribute to revolutionizing financial services! Join an agile and passionate team at the heart of a critical information system, where every line of code has a direct impact on millions of users. Here, technology serves financial innovation, with a modern infrastructure and stimulating technical challenges. You will evolve in a framework where technical excellence goes hand in hand with collaboration and concrete impact.

Your daily missions:

  • Design and develop robust backend solutions in Scala, within a team dedicated to managing financial transactions;
  • Collaborate closely with business and production teams to design, develop, and deploy key features, from idea to commissioning;
  • Guarantee the stability and performance of applications, by actively participating in their maintenance and evolution;
  • Become a technical and functional expert, capable of leading strategic projects for the company;
  • Contribute to the continuous improvement of development processes, by proposing optimizations and best practices.

Technical environment: Scala 2/3, libraries (http4s, tapir, fs2, circe), Cassandra, SQL Server, Kafka, Kubernetes, Docker.

Profile:

Experience and skills sought:

  • 5 to 6 years of experience in backend development, with proven mastery of Scala and a real appetite for functional programming;
  • Experience with Cassandra or Kafka would be a major asset;
  • Knowledge of modern tools: Kubernetes, Docker, Helm, GitLab CI/CD;
  • Team spirit and the ability to communicate effectively, both with technical and business teams;
  • Rigor and customer focus: you always keep in mind the impact of your work on the end-user experience;
  • Operational English to read and write technical documentation.

Recruitment process

Once you have applied, here are the steps:

  • Externatic interview with Thomas;
  • Interview with the company:
  • Interview 1 with the team manager;
  • Interview 2: meeting with team members;
  • Interview 3 with HR.

Benefits:

Why apply?

  • Contribute to the transformation of a key player in finance, with high value-added projects;
  • Work in a passionate team, with varied technological and strategic challenges;
  • Location: Nantes City Center;
  • Possibility of teleworking 2 days per week;
  • Internal mobility is at the heart of HR policy and evolution prospects are very present;
  • Salary: attractive remuneration with a package between 45 and 55 k€

Want to know more? Being accompanied by Externatic also means accessing permanent contract (CDI) opportunities that are sometimes invisible on job boards, at the heart of the hidden IT market.