Software Development Engineer, Java

Thales

. Get up to speed with the technical development environment .

Posted 9/30/2026internshipMassy • FranceEntry LevelWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Proficient in Java Swing development with a focus on optimizing HMI and user experience. Strong analytical skills and the ability to work autonomously in a software development team within the defense sector.

Highest-signal resume keywords

Java Swing ProficiencyHMI/UX ExperienceTesting Tools (Cucumber, JUnit)Familiarity with Bazel, JIRA, IntelliJ, Git, Bitbucket, DockerMaster's-Level Degree in Computer Science

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Java SwingHMI DevelopmentUser Experience OptimizationTesting ToolsSoftware Development

Soft Skills

Analytical SkillsProactive AttitudeExcellent CommunicationOrganizational Skills

Tools & Technologies

BazelJIRAIntelliJGitBitbucketDocker

Industry Keywords

Defense SectorSecurity ClearanceSoftware Development Internship

Tech Stack

Tools & technologies

DockerJavaJUnit

About the role

Key responsibilities & impact

Get up to speed with the technical development environment
Develop and optimize features and improve the HMI
Improve and optimize the interface and user experience of a Java Swing air traffic control HMI
Present deliverables and validate use concepts
Join a software development team in the defense sector
Initially work at the Massy site, then at the Vélizy-Villacoublay site

Requirements

What you’ll need

Currently pursuing a Master's-level degree (Bac+5 equivalent) in computer science, specializing in software development
Seeking a six-month internship
Proficient in Java Swing
Interest in Bazel, JIRA, IntelliJ, Git, Bitbucket, and Docker
Proficient with testing tools such as Cucumber and JUnit
Initial experience with HMI/UX
Autonomous, thorough, analytical, and proactive
Excellent communication skills and the ability to organize your work
The successful candidate will be required to undergo a security clearance procedure if the position involves access to information classified as a national defense secret

Benefits

Comp & perks

Internship allowance, determined according to your level of education
All internships are covered by an official internship agreement
Inclusive and supportive work environment
Strong focus on employee well-being and work-life balance
Recognized commitment to social and environmental responsibility