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TRANSATEL (an NTT company)

Fullstack Developer Java / JS M/F

Hybrid

Courbevoie, France

Mid level

Full Time

24-07-2025

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Expired

Skills

Communication SQL Kubernetes Performance Testing Software Development Hibernate Agile Scrum Spring Boot

Job Specifications

Transatel is a leading Mobile Virtual Network Operators (MVNO) enabler and a global cellular IoT connectivity solutions provider. How about connecting the world together, beyond borders?
Transatel also operates its own retail connectivity mobile data service branded as Ubigi. Thanks to the eSIM technology, Ubigi is redefining the way travelers stay connected to the Internet abroad by offering cost-effective data plans in over 200 destinations worldwide.
Your mission
As a member of the Information Systems team, you will join our software development group, which consists of 70 professionals, including developers, Agile Scrum Masters, and testers.
Specifically, you will be part of the squad responsible for developing our platforms. These platforms leverage the latest in Java 21 and Spring Boot, utilizing microservices
architecture and REST APIs, all within an environment where maintenance and reliability are paramount.
We employ Agile Scrum methodologies to foster strong collaboration between technical and business teams, while adhering to industry best practices such as pair programming,
open collaborative spaces, continuous integration, and Test-Driven Development (TDD).
Your Profile:
- You have a university education related to Software Engineering, Information Systems or Computer Science.
- You have at least 6 years of experience.
- English & French fluent
Tech requirements:
Proved, solid knowledge of Java language (java 21)
Frameworks and ORM: Spring (Boot, Core, JDBC, Security), and Hibernate
Good knowledge on microservices architecture (Outh2, Service discovery, Distributed tracking, ...)
Unit testing (jUnit), integration and performance testing
Experience with concurrent programming and distributed systems
Proficiency in SQL and relational DBs (MS SQL/MySQL)
Good understanding of REST API (JSON/XML), Open API specification, HTTP protocol in general
Nice to have (optional):
Experience with JavaScript (React, Angular)
Knowledges in No-SQL (Elasticsearch, Couchbase)
Experience with Kubernetes and Cloud
Experience with mobile cross plateform application developement

About the Company

At Transatel, we imagine innovative cellular connectivity solutions and deploy them for prestigious clients like Airbus, BMW, Air France and Worldline. As a leading Mobile Virtual Network Operator (MVNO) enabler and global IoT connectivity pioneers, our SIM cards connect millions of vehicles, industrial and consumer devices to public and private cellular networks across the world. Transatel also provides global cellular data connectivity for international travelers and distributed workforce through its Ubigi eSIM solution. O... Know more