Why work at ONEX

Join a leading Greek industrial and technology group shaping the future of shipbuilding, infrastructure, energy, transportation, and advanced industrial operations. At ONEX Group, people are part of projects that combine innovation, engineering, and real industrial impact on both a national and international level.

A career with a strong future

A career at ONEX Group means becoming part of a growing industrial and technology ecosystem with long-term opportunities across multiple sectors.

Through continuous investment, innovation, and expansion, the Group offers an environment where professionals can develop their expertise, take part in large-scale strategic projects, and grow within a modern organization shaping the future of Greek industry and maritime operations. ONEX Group offers diverse opportunities across technical, engineering, operational, administrative, and management roles.

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Currently owning and managing assets

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dynamic workforce directly and inderictly

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euro in completed and delivered projects

Work environment

ONEX Group offers a fast-paced and multidisciplinary working environment where industry, technology, engineering, and innovation operate together. Employees work across shipyards, industrial facilities, engineering divisions, technology systems, and infrastructure projects that contribute directly to the modernization of Greece’s industrial and maritime sector.

The Group promotes collaboration, accountability, technical excellence, and continuous development across all areas of operation. Teams are encouraged to take initiative, solve complex challenges, and participate in projects that combine advanced engineering, industrial execution, and real operational impact.

With activities spanning multiple sectors and large-scale strategic projects, ONEX Group provides an environment where professionals can expand their expertise, gain hands-on experience, and grow within a modern industrial organization focused on long-term development and innovation.

Join a growing industrial ecosystem

Opportunities Across Industries

With operations spanning shipbuilding, maritime services, technology systems, defense support, transportation, logistics, energy, and critical infrastructure, ONEX Group offers diverse opportunities across technical, engineering, operational, administrative, and management roles.

Investing in the Next Generation

ONEX Group is committed to developing talent through hands-on experience, technical expertise, continuous learning, and participation in high-impact industrial projects. The Group supports a culture of growth, responsibility, and long-term career development.

Building the Future of Industry

Employees at ONEX Group contribute to projects that support industrial regeneration, technological advancement, and strategic infrastructure development. Every role becomes part of a broader vision focused on innovation, sustainability, and the future of Greek industry.

ONEX Group: a Greek industrial Hub with 165 years of history

ONEX Group represents the evolution of one of Greece’s most historic industrial and maritime legacies into a modern, integrated industrial and technology platform. Building on more than 165 years of shipbuilding history through the Syros and Elefsina Shipyards, the Group combines industrial heritage with innovation, infrastructure, and advanced engineering capabilities.

Today, ONEX Group operates across shipbuilding, ship repair, technology systems, transportation, energy, logistics, defense support, and critical infrastructure, creating an interconnected industrial ecosystem with strategic importance for Greece and the Eastern Mediterranean.

Through long-term investment, industrial revitalization, and technological modernization, ONEX Group continues to strengthen Greece’s industrial base while shaping the next chapter of maritime and industrial development.

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Become part of a great team

Explore open positions

Discover career opportunities across shipbuilding, engineering, technology, infrastructure, and industrial operations at ONEX Group. Join a growing organization shaping the future of Greek industry and maritime innovation.

Opportunity awaits, upload your CV

Become part of ONEX Group’s growing industrial and technology ecosystem. We are always looking for talented professionals across engineering, shipbuilding, technology, infrastructure, operations, and corporate functions.

Careers by Business Sector

ONEX Shipyards & Technologies Group is a dynamic Greek industrial group active in shipbuilding, ship repair, defense support, technology, and critical infrastructure. By revitalizing the Syros and Elefsis shipyards, ONEX restores strategic industrial capacity at a key crossroads of the Eastern Mediterranean.

ONEX Shipyards & Technologies Group’s naval shipbuilding infrastructure and experience, enable the development of modern manned and unmanned surface and underwater naval units, integrating cutting edge technologies, designed to secure maritime supremacy. The Group’s proven shipbuilding capabilities, reinforced by the strategic locations of ONEX Shipyards in Elefsis and Syros, enables ONEX to provide naval construction, fleet sustainment, modernization, integrated logistics, and fleet life-time technical support.

ONEX Shipyards & Technologies Group is developing a strategic energy and green solutions platform focused on maritime decarbonization, offshore energy infrastructure, sustainable industrial modernization and critical energy support systems. The Group’s environmental and energy positioning is grounded in its existing strengths: shipyards, heavy fabrication, offshore experience, digital systems, logistics and industrial execution. This gives ONEX the ability to support the green transition not only conceptually, but through real infrastructure, vessel programs and industrial operations.

ONEX Shipyards & Technologies Group is expanding its industrial platform into transportation and critical infrastructure through rolling stock, railway systems, metro infrastructure, smart networks, integrated systems and logistics corridors. The strategy is based on the Group’s ability to reuse and upgrade existing heavy industrial infrastructure for new national and regional needs. ONEX Shipyards in Elefsis and Syros provide the industrial base; ONEX RSIS adds railway manufacturing and life-cycle support; TS&BS adds the digital backbone; and the Elefsis - Thriasio corridor creates the logistics connection between ship, rail, and warehouse.

ONEX Shipyards & Technologies Group is developing an integrated port and logistics platform in Elefsina (Greece), designed to transform Western Attica into a leading maritime, trade, and logistics hub in the Eastern Mediterranean. The initiative combines intermodal port operations interconnected with the national railroad and highway system, logistics infrastructure, industrial services, and strategic maritime support together with shipyard facilities into a single multipurpose ecosystem. This is one of the clearest expressions of the ONEX master strategy: to create a Port-Logistics and Shipyard dual use Hub capable of serving both commercial and military needs.

Why work at ONEX

A career with a strong future

Work environment

Join a growing industrial ecosystem

ONEX Group: a Greek industrial Hub with 165 years of history

Become part of a great team

Careers by Business Sector

Shipbuilding & Ship Repair

Defense & Naval Programs

Technology Systems & Business Solutions

Energy & Green Solutions

Transportation & Critical Infrastructure

Ports, Logistics & Maritime