Senior Full Stack Java Developer

Thales Avs France Sas

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Bucharest Until 8/22/2026 5+ years exp H-1B sponsor history First posted April 23, 2026 Last posted June 23, 2026
Job description
Location: Bucharest, Romania

Thales is a global technology leader trusted by governments, institutions, and enterprises to tackle their most demanding challenges. From quantum applications and artificial intelligence to cybersecurity and 6G innovation, our solutions empower critical decisions rooted in human intelligence. Operating at the forefront of defence and security, aerospace and space, cybersecurity and digital identity, we’re driven by a mission to build a future we can all trust.

 

In Romania, we are advancing innovation through software engineering, research and development, delivering solutions in key markets in which Thales Group operates. Our engineers design, develop and integrate solutions that impact global industries – from fully operational systems and subsystems for naval warfare and maritime security operations, to air traffic management systems, satellite-based solutions, tactical indoor simulations, identity and biometric technologies and more.

Senior Full Stack Software Developer

Job summary: Quality annotation is one of the most important activity to be able to perform accurate Machine Learning and yet, it is probably one of the most boring activity ever for an operator. At CortAIx Factory, our goal is to offer AI-related resources for both internal and external use. We aspire to transform the process of annotating signals (radar, sonar, situation awareness, etc.) into an engaging experience for everyone, while ensuring that we maintain the highest quality of annotations, to deliver superior supervised machine learning solutions.

You’ll need to do:

  • Design, develop, test, deploy, maintain and improve software

  • Set and apply best practices (both development and operational best practices), code quality, security standard

  • Manage project priorities, deadlines and deliverables

  • Develop along with the latest technologies available

  • Problem solve from design to delivery, ensuring pipelines deliver high-quality software as core services

  • Get involved in the ops/infrastructure part

  • Work on CI/CD pipelines, Kubernetes, Docker

Whilst working with us on

  • Java 17+

  • React 18+

  • Spring Boot, JPA, Spring Data

  • SQL

  • REST API

  • JUnit, familiar with the testing life cycle 

  • Profiling and optimization techniques/refactoring/data structures

  • Maintaining SOLID and clean code principles  

  • Team spirit, pair programming, continuous improvement culture

  • Awareness on Agile methodologies

  • Familiar with Docker and Kubernetes

  • Familiar with Azure Cloud

  • Health monitoring

At Thales, we’re committed to fostering a workplace where respect, trust, collaboration, and passion drive everything we do. Here, you’ll feel empowered to bring your best self, thrive in a supportive culture, and love the work you do. Join us, and be part of a team reimagining technology to create solutions that truly make a difference – for a safer, greener, and more inclusive world.

About this role

Summary

Design and develop software solutions using Java, React, Kubernetes, Docker, and cloud,

Job title

Senior Full Stack Java Developer

Experience level

senior level

Minimum experience

5+ years exp

Industry

technology

Location requirements

Bucharest, Romania; remote not specified

Salary

Not specified

Visa sponsorship

H-1B sponsor history

Management role

No

Skills & keywords

Required skills

Java 17+React 18+Spring BootSQLREST APIJUnitDockerKubernetesAzure

Preferred skills

None specified

Specializations

javareactspring bootkubernetesdocker
Locations

Structured locations inferred from the posting.

Bucharest, Romania

On-site City