GTT - Technology for a Sustainable World

About the Company

GTT is a technological expert in containment systems with cryogenic membranes used to transport and store liquefied gases. For 60 years, GTT has been designing and providing cutting-edge technologies for a better energy performance, which combine operational efficiency and safety, to equip LNG carriers, floating terminals, land storage, and multi-gas carriers. GTT also develops systems dedicated to the use of LNG as fuel, as well as a full range of services, including digital services in the field of Smart Shipping. The Group is also active in hydrogen through its subsidiary Elogen, which designs and assembles electrolysers notably for the production of green hydrogen.

Listed Jobs

Company Name

GTT - Technology for a Sustainable World

Job Title

Stage - Data Scientist (H/F)

Job Description

**Job Title:** Internship - Data Scientist **Role Summary:** Refine maritime voyage databases using AIS data and machine learning to detect errors. Analyze data to extract statistics on transport volumes, navigation trends (weather vs. cargo status), operational events, and develop predictive port-voyage graphs. Collaborate with the Commercial Direction to provide actionable insights. **Expectations:** - Master’s degree in Engineering, Computer Science, or Mathematics with a focus on Data Science/Data Analytics. - Proficiency in data analysis, visualization (e.g., SQL, Python libraries), API queries, and signal processing. - Strong Python programming skills. - Familiarity with maritime industry concepts is advantageous. - Analytical problem-solving, independence, and innovative solution-building. **Key Responsibilities:** - Clean and refine voyage databases using AIS data and ML techniques. - Generate statistical insights on transport volumes, navigation patterns, and special operations (e.g., maintenance, delays). - Build predictive models for port-voyage trends and automate operational event detection. - Develop data pipelines and collaborate with stakeholders for decision-support analysis. **Required Skills:** - Data analysis (SQL, Python, APIs). - Machine learning and signal processing. - Data visualization (e.g., Tableau, Power BI). **Required Education & Certifications:** - Master’s degree in Engineering, Computer Science, or Mathematics. - Specialization in Data Science preferred.

St.-rémy-lès-chevreuse, France

On site

12-11-2025

Company Name

GTT - Technology for a Sustainable World

Job Title

Stage Ingénieur - Modélisation du Comportement des Mousses Isolantes au Refroidissement Cryogénique - 6 mois (H/F)

Job Description

**Job Title** Internship Engineer – Modeling Behavior of Insulating Foam in Cryogenic Cooling – 6 months **Role Summary** Conduct research in mechanical R&D to develop and validate a quasi‑static, isothermal/anisothermal model for polyurethane fibrous insulation foam (Mark III) used in LNG transport vessels. Collaborate with mechanical and innovation teams to analyze test data, create predictive models, and integrate the models into existing numerical validation workflows. **Expectations** - Deliver a validated mechanical model within the internship period. - Present technical findings to multidisciplinary stakeholders. - Work autonomously, propose improvements, and communicate results effectively. **Key Responsibilities** - Compile and assess extensive existing test data (homologation, quasi‑static mechanical tests at varied temperatures). - Analyze mechanical descriptors (effective stiffness evolution, elongation/ultimate strain). - Develop a representative behavior model for isothermal and anisothermal quasi‑static loadings. - Validate the model against measured responses from current or newly performed tests. - Propose integration of the numerical foam model into current digital validation methods. **Required Skills** - Strong foundation in materials/structure mechanics. - Experience with Abaqus finite‑element analysis. - Proficiency in Python and Excel for data processing and modeling. - Autonomy, initiative, and openness to new ideas. - Ability to present and defend technical content to varied audiences. **Required Education & Certifications** - Master’s level (M2) or equivalent engineering school qualification in Mechanical R&D or related field. - Demonstrated interest in material mechanics and numerical simulation. ---

St.-rémy-lès-chevreuse, France

Remote

30-12-2025

Company Name

GTT - Technology for a Sustainable World

Job Title

Stagiaire Développement d'algorithmes 3D / Scan 3D - 6 mois (H/F)

Job Description

Job Title 3‑Month Internship – 3D Algorithm Development / 3D Scanning Role Summary Assist the Research & Development team in building advanced 3‑D data processing tools for a new ground‑storage ammonia tank. Work with laser‑scanned geometries to compare built structures against theoretical models, ensuring integrity and flatness specifications. Expectations - Full‑time internship lasting 6 months (may start earlier). - French or English communications; English proficiency at intermediate level for technical documentation. Key Responsibilities - Analyze existing algorithms for geometric data exploitation. - Translate technical specifications of the ammonia storage system into algorithmic requirements. - Design, implement, and version‑control enhancements to 3‑D processing algorithms. - Integrate raw data from laser scanners, calibrate, and preprocess point cloud sets. - Validate algorithm outputs using real‑world datasets from staged mock‑ups. - Collaborate with senior R&D engineers and cross‑functional teams. Required Skills - Object‑oriented programming (C#, Python; Rust experience a plus). - Knowledge of computational geometry, point‑cloud processing, and data‑fusion concepts. - Familiarity with 3‑D modeling, CAD, or similar design software. - Analytical thinking, detail orientation, and independent problem‑solving. - Good teamwork and communication skills. Required Education & Certifications - Current enrollment in a Master’s (Bac +5) or advanced engineering degree in Computer Science, Algorithms, Data Processing, Digital Design, or related disciplines. - No prior professional certification required; relevant coursework in 3‑D geometry or computer vision preferred.

St.-rémy-lès-chevreuse, France

On site

06-01-2026