

Senior Fullstack Engineer (Java/React)
Our partner is a global technology leader in the defense and space industry. The company is extending its activities in Romania by developing a modern software solution to be used across Thales sites for monitoring and managing sensitive products and environmental data.
This project is a key initiative in the transformation of the Integrated Airspace & Protection Systems business line, and it is being developed jointly by teams in France and Romania.
Key Responsibilities:
Lead the development of one of the platform's modules, ensuring high-quality deliverables and adherence to the project roadmap;
Provide technical leadership to a squad of developers – guide, mentor, perform code reviews, and validate technical decisions;
Develop new features using Java (Spring Boot) and React, applying best practices for design, security, and performance;
Ensure modular, scalable architecture (microservices, REST APIs) and alignment with internal technical repositories;
Collaborate closely with the Product Owner, architects, and cross-functional teams in France;
Actively contribute to Agile ceremonies (backlog refinement, sprint planning, DoR/DoD validation);
Participate hands-on in development and continuous improvement of software craftsmanship within the team.
To thrive in this role, you will:
Bring 5+ years of software development experience, ideally in a fullstack Java + React environment;
Demonstrate a strong understanding of Domain-Driven Design (DDD), hexagonal architecture (ports & adapters), and architectural patterns such as API Gateway and microservices;
Be familiar with Spring Boot, REST APIs, PostgreSQL, microservices, and Azure Cloud;
Have a solid understanding of Agile / Scrum and software engineering best practices;
Be a strong communicator, collaborative, with a “can-do” attitude and focus on results;
Speak English fluently (French is a plus).
Nice to have:
Knowledge of containerization (Docker, Kubernetes) and CI/CD tools;
Experience mentoring mid-level engineers or leading small teams;
Interest in complex, high-security environments and scalable architectures.
What’s in it for you:
Be part of a strategic, high-visibility international project developed jointly with France;
Work on a greenfield platform;
Hybrid working model - 2-3 days in the office (very flexibile).
Hybrid, Bucharest


