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GTT - Technology for a Sustainable World Tech Stack

Cryogenic containment systems for LNG carriers, storage, and hydrogen production

Engineering Services Saint-Rémy-lès-Chevreuse, Yvelines 501–1,000 employees Public Company

GTT designs membrane containment systems for liquefied-gas transport and storage, with a 60-year track record in LNG shipping. The tech stack (Excel, VBA, Python, MATLAB, C#, AutoCAD) reflects a hardware-software hybrid: heavy CAD and simulation work paired with emerging Python automation. Active projects span 3D data processing, automatic dimensioning tools, and ammonia storage—signaling expansion beyond LNG into adjacent gas categories. Hiring is accelerating across ops and engineering, primarily in France and China.

Tech Stack 15 technologies

Core StackPython MATLAB C# Rust Dynamics 365 AutoCAD Excel VBA SharePoint Teams OneDrive Purview Microsoft 365 Microsoft Office Outlook

What GTT - Technology for a Sustainable World Is Building

◆Challenges

Simplify validation studies
Structuring commercial proposals
Analyzing project data
Optimizing 3d data acquisition
Adapting tools to ammonia technology
Producing captivating events
Expanding market presence in greater china
Identifying new business opportunities
Strengthening visibility in ecosystem
Migration of information

▲Active Projects

Build database of support loads
Develop automatic dimensioning tool
Déploiement membrane
Ammonia storage technology development
3d data acquisition optimization
3d data processing algorithm development
Internal and external events portfolio
Event communication plan
Techno-commercial proposal development
Innovation roadmap review

Hiring Activity

Accelerating8 roles · 4 in 30d

Department

Ops

3

Engineering

2

Finance

1

Marketing

1

Sales

1

Seniority

Intern

4

Junior

1

Manager

1

Mid

1

Senior

1

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About GTT - Technology for a Sustainable World

GTT manufactures membrane containment systems for LNG carriers, floating terminals, land-based storage tanks, and multi-gas vessels. The company also offers bunkering solutions, LNG-as-fuel systems, and digital/monitoring services under the Smart Shipping banner. Through its subsidiary Elogen, GTT designs and manufactures electrolysers for green hydrogen production. With 501–1,000 employees headquartered in Saint-Rémy-lès-Chevreuse, France, GTT operates as a public company serving shipping, energy infrastructure, and hydrogen sectors.

HeadquartersSaint-Rémy-lès-Chevreuse, Yvelines

Company Size501–1,000 employees

Hiring MarketsFrance, China

Frequently Asked Questions

What technology does GTT specialize in?

GTT designs cryogenic membrane containment systems for transporting and storing liquefied gases (LNG, LPG, ammonia). The systems are used in LNG carriers, floating terminals, land storage tanks, and small-to-mid-scale facilities. GTT also produces electrolysers for green hydrogen via its subsidiary Elogen.

What software does GTT use?

GTT's core stack includes AutoCAD and MATLAB for design and simulation, Python and C# for automation, Excel/VBA for analysis, and Microsoft 365 (Dynamics 365, SharePoint, Teams) for operations and collaboration.