Fullstack Senior Software Engineer (JAVA/React)

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.

Role: Fullstack Senior Software Engineer (JAVA/React) Are you passionate about building robust platforms that power mission-critical operations? Do you enjoy collaborating across teams and technology stacks to shape the future of enterprise software? If so, Thales is looking for you! Join us as a Senior Full Stack Engineer and become an integral part of the DATX platform’s evolution.

Mission: The DATX platform will allows Thales users to monitor various components used by Thales sites (chemical, mechanical, electronics, software products). The DATX platform team is looking for a Full Stack Senior Software Engineer who will be responsible for software development according to the product roadmap. This mission involves participating in product developments as well as deploying implemented features.

Main responsibilities: Participate in the development of the DATX platform products Develop, build, test, deploy and run in production. Contribute in applying best practices (both development and operational best practices), code quality, security standards Actively contribute to the technical solution definition and improvements. Help the team to focus on cross/non-functional requirements when needed Validate the technical orientations/choices and developments made by developers and participate to code review when needed Ensure alignment of developments with the technical repository (Document base – Miro Architecture plan) when needed Contribute to Agile ceremonies (Backlog refinement – Validation of user story estimation, responsible for DoR and DoD within the scope of action, preparation of sprint reviews, etc.) Ensure deliveries are in line with sprint planning About You: Requirements: Kotlin (preferable) with solid knowledge of Java React JS (preferable) or Angular TypeScript / JavaScript / HTML / CSS Spring Boot & Microservices Architecture & REST APIs Databases PostgreSQL Docker, Kubernetes, Gitlab Azure Cloud – it would be a plus Hexagonal Architecture - it would be a plus Domain-Driven Design (DDD) – it would be a plus Agile | Scrum methodology Soft skills: Teamwork Problem solving Time management Attention to detail Communication Connect with Andreea Burcea, Talent Acquisition Partner who is eager to explore together with you this exciting opportunity. 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. Interested in finding out more about Thales and why you should join us? Say HI* to new career opportunities.