Senior Fullstack engineer (React/TypeScript & Python/Node.js)

Thales; France; Hybride; EUR 50 000 - 70 000; Plein temps

Résumé du poste

A leading global technology firm is seeking a Senior Fullstack Engineer (React/TypeScript & Python/Node.js) to join their team in Romania. The role involves developing web applications that enhance engineering productivity, integrating AI capabilities, and maintaining high code quality standards. Ideal candidates will have a Master’s degree in engineering or computer science with a strong background in full-stack development and modern web technologies. Strong English skills are mandatory, and knowledge of French is a plus. Join us in transforming technology for a safer world.

Prestations

Supportive workplace culture

Opportunities for career growth

Innovative project engagements

Qualifications

• Professional experience in full-stack development.
• Knowledge of HTML5, CSS3, and modern build tools.
• Experience with SQL and NoSQL databases.

Responsabilités

• Design and develop intuitive web applications.
• Integrate with COTS products and engineering tools.
• Champion software craftsmanship through code reviews.

Connaissances

React

TypeScript

Python

Node.js

RESTful APIs

GraphQL

Docker

CI/CD

Formation

Master’s degree in engineering or computer science

Outils

GitLab

Polarion

AWS

Azure

Google Cloud

Description du poste

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: Senior Fullstack engineer (React/TypeScript & Python/Node.js)

Mission:

Join us in building the future of engineering productivity. We're creating a ground-breaking agent garden that will transform how 40,000+ engineers work—enabling seamless connections between AI systems, engineering tools, and data while fostering a thriving marketplace of AI agents and services.

What you will do:

Build User-Facing Experiences:

• Design and develop intuitive web applications interfacing with our agent garden
• Create dedicated UI components making complex AI interactions simple and powerful
• Build responsive, accessible interfaces using modern web technologies (React, TypeScript)

Integrate with Engineering Tools:

• Develop deep integrations with COTS products like GitLab, Polarion, and other development tools
• Enable agentic AI capabilities within existing workflows (e.g., AI-powered code review)
• Design and implement APIs connecting our system with diverse engineering ecosystems

Enable the AI Revolution:

• Work closely with AI agents Developers to expose backend capabilities through agentic interfaces (MCP server or agent tools)
• Build configuration and management interfaces for agents, MCP or A2A Catalog, and marketplace features
• Implement traceability and auditability features giving users visibility into AI actions
• Enforce the IAM delegation from the user to agents to performs engineering action in a secure way

Champion Quality & Craft:

• Apply software craftsmanship principles: TDD, clean code, living documentation
• Write comprehensive tests (unit, integration, E2E) and maintain high code quality
• Support development of junior/mid engineers through code reviews, pair programming, and coordinating mentorship
• Contribute to technical decisions and architectural choices

About you:

• You hold a master’s degree in engineering, computer science, or a related field.
• professional experience in full-stack development
• Frontend: React, TypeScript, HTML5, CSS3, modern build tools
• Backend: Python, Node.js or GO
• APIs: RESTful, GraphQL, WebSocket, authentication/authorization (OAuth, JWT)
• Databases: SQL and NoSQL, ORM frameworks
• Integration specialist: Proven track record with third-party systems and COTS products
• DevOps awareness: CI/CD, containerization (Docker), cloud infrastructure
• Cloud services: Experience with AWS, Azure, or Google CloudYour Approach
• Craftsmanship first: BDD, DDD, TDD, clean code principles
• Quality obsessed: Balance speed with robustness and maintainability
• Security conscious: Think about cybersecurity implications in designs
• Documentation lover: Living documentation and knowledge sharing

Mobility:

• Travels to France to consider

Languages:

• English – mandatory
• French – would be a plus

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.