Junior Engineer for Tools and Validation team of R&D

Location: Aix-en-Provence/ Saint-Germain-en-Laye


Founded in 2010, Oasis Smart SIM is a France and Singapore-based company that facilitates the adoption of eSIM by telecom operators, service providers and OEMs. Oasis designs, develops and operates a range of GSMA-certified eSIM innovative infrastructures, platforms and services.
Established by SIM industry pioneers with a vision to connect any SIM-enabled assets anywhere, anytime, Oasis Smart SIM aims to drive global eSIM adoption by orchestrating and simplifying the digitization of SIM.

Oasis Smart SIM is member of GSMA and TCA, ranked in 2022 as one of the top 6 world certified eSIM technology providers and is part of Tata Communications Group, a digital ecosystem enabler powering today’s fast-growing digital economy.

At Oasis, we believe that what we do is as important as how we do it. Our values - agility, expertise, and innovation – associated to our CSR ambitions, guide how Oasis Team serve our customers, with their satisfaction as main goal.

If you are ready for new challenges in your career, we are looking all over the world for passionate and dynamic team players to join us.


 The intern will be part of the Tools and Validation team of our Embedded R&D department based in Aix-en-Provence. He will have to develop tools in the aim of:

  1. Connecting Commercial Test Suites and our (e)SIM OS This will manage the establishment of SCP02/03 Secure Channel Session. These protocol are defined in GlobalPlatform and use Symmetric Cryptography (DES/AES).
  2. Updating Java class files’ interpreter and converter. These tools translate Java class files into a native representation which is embedded as static data in our (e)SIM OS HeliOS. the current tool does not support latest Java class file structure preventing us to use the latest Java

This will help to deliver best-in-class (e)SIM to our customers. The intern will be working closely with Oasis technical teams (development, architecture, validation). The intern should be open to suggestions and should be willing to learn new things.


 Development and implementation of Java tools related to (e)SIM

  • Must be able to approach/understand complex software and/or problems/bugs
  • Good team player willing to learn fast and adapt to the demanding situations


  • Languages: Java, XML, Symmetric Cryptography
  • Source Management and Continuous Integration: GIT (GITLab)
  • Must work well as a part of a team
  • Must demonstrate problem-solving capabilities, proactive,
  • English: full professional skills as the engineer will work in an international environment


  • Education: Degree or Diploma in Computer sciences, programming science or similar
  • Experience: Minimum experience with software



  • A state-of-the art technological environment, within a highly international working environment that allows you to work with clients and partners from around the globe.
  • Public benefits related to food (Ticket Restaurant)


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