OT Networks and Systems Specialist

About the job

About us

At VAROPreem, we believe in the power of energy. Energy enables our society to be mobile, connected and innovative.

VAROPreem offers a variety of products such as diesel and petrol, domestic heating oil, fuel oil and more. The priority of our energy business is to continue operating safely and reliably, to reduce carbon intensity and to ensure the essential energy security for our customers.

Our Cressier (NE) refinery is a major energy supplier in Switzerland, supplying the national market with high-quality products. Our employees challenge industry standards daily to meet the growing demand for clean energy solutions.

About the position

At the heart of the industrial operations of the refinery and the Jura Neuchâtel Pipeline SA (OJNSA), you play a key role in the reliability and security of the technological infrastructures that support production.

You ensure the availability, performance and cybersecurity of OT (Operational Technology) systems, industrial networks and critical infrastructures, directly contributing to the continuity and operational excellence of the site.

A true partner of the business teams, you participate in the design, deployment and evolution of innovative industrial automation solutions. Thanks to your expertise, you support the technological transformation of the company by ensuring the integration of best practices in terms of security, reliability and performance.

Responsibilities

Management of OT infrastructures and networks

Deploy, administer and develop OT infrastructures and networks supporting industrial operations.

Ensure the availability, reliability and resilience of control and safety systems.

Monitor the performance of OT infrastructures and lead continuous optimisation actions.

Ensure rigorous management of the OT estate: equipment, servers, applications, networks and industrial assets.

Administration of OT systems and applications

Administer and maintain OT systems and applications in operational conditions, notably level 3 platforms.

Ensure data integrity and availability through effective management of backups, restorations and recovery plans.

Plan and deploy updates, security patches and software evolutions to maintain a high level of performance and security.

Provide your expertise in analysing and resolving complex technical incidents.

Project management

Contribute to the design, deployment and modernisation of infrastructures and industrial automation solutions.

Manage projects and project packages ensuring compliance with quality, cost and deadline objectives.

Collaborate with business and technical teams to develop solutions meeting the company’s operational challenges.

OT Cybersecurity

Play a central role in protecting OJNSA’s industrial infrastructures and critical assets.

Ensure the application and continuous improvement of industrial cybersecurity policies and standards.

Identify, assess and reduce cyber risks to strengthen the resilience of OT systems.

Contribute to vulnerability management, access control, network segmentation and protection devices for industrial environments.

Participate in cybersecurity audits and implement improvement actions ensuring compliance and robustness of OT infrastructures.

Qualifications

Degree in industrial computing, automation, industrial systems or equivalent training.

Proven experience of at least 5 years in an industrial environment.

Excellent command of French and very good command of English, both spoken and written.

Strong knowledge of virtualisation technologies (VMware or equivalent solutions).

Good command of industrial control systems, notably DCS and SIS/IPS.

About you

Ability to analyse and resolve complex technical issues in critical environments.

Initiative, sense of priorities and organisation.

Strong awareness of cybersecurity, availability and reliability issues of industrial systems.

Excellent communication skills and ability to collaborate effectively with stakeholders at all levels.

What we offer

A key role in the performance of strategic industrial infrastructures.

Varied technical challenges at the intersection of OT, networks and cybersecurity.

Contribution to the transformation and modernisation of industrial facilities.

A broad scope of responsibilities and a tangible impact on operations.

Attractive working conditions and top-tier social benefits.

Want to join us?

Please send us your application file (CV, cover letter, diplomas and work certificates).

Application deadline: 15 October 2026

For more information about this position, please contact: Ariane Girard, 032 758 62 13