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Network and Security Administrator

SopraSteria1

Leudelange, Esch-sur-Alzette, Luxembourg permanent

Posted: March 12, 2026

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Quick Summary

The successful Network and Security Administrator is responsible for ensuring the security and integrity of our clients' networks and systems.

Job Description

Sopra Steria offers tailored, end-to-end corporate technology and software solutions to help clients make bold choices and deliver results. Successfully so! With more than

56.000 colleagues in 30 countries, we rank as Europe’s leading digital solutions provider. Some of the most successful companies in Europe rely on our technology due to our commitment to innovation, collaboration, and value in business development.

The world is how we shape it. Let’s shape it together.

Digital transformation is the cornerstone of Sopra Steria’s commitment to innovation and collaboration. It’s what brings businesses up to the present and secures them for the future. It’s how we align our tech and business goals to keep pace with emerging tech trends and best practices. To do so, you’ll need a forward-thinking, long-view, adaptable mindset to go with your problem solving and analytical skills. 

We are looking for an experienced Network Engineer to join our Cybersecurity Business Unit. You’ll ensure seamless connectivity, system integrity, and data protection across the organization’s IT environment. In addition to your technical expertise, your role will involve close collaboration with other departments to integrate security measures into diverse systems, ensuring business continuity and compliance with regulatory standards. At Sopra Steria Luxembourg, you’ll have the opportunity to expand your skills in a collaborative, forward-thinking environment, contributing to projects that protect and transform our clients’ digital landscapes. If you thrive on solving complex challenges and meet (most of) the qualifications below, we look forward to your application!

Type of employment: On Site

Location: Luxembourg

Contract hours: 40 hours

Contract type: Permanent

Languages: English and French required

EU citizenship

Your Responsibilities

• Perform a critical review of network configurations from a functional perspective.
• Perform a critical review of network configurations from a security perspective.
• Contribute to the necessary hardening of the network infrastructure.
• Provide insights on the current architecture and suggest improvements.

Technical Environment

• Stormshield
• Palo Alto
• Fortinet
• VPN context

• Bachelor’s or Master’s degree in Computer Science, Information Systems, or a related field.
• First experience in network administration is a plus
• Excellent problem-solving and analytical skills, with a focus on delivering practical and innovative solutions.
• Strong communication and interpersonal skills to engage with technical and non-technical stakeholders effectively.

As a member of one of Europe’s largest digital solutions providers, you’ll benefit from extensive career development opportunities, both local and international. At the Sopra Steria Academy, you’ll be part of a dynamic network of 56,000 professionals at all stages of their careers. With a wide array of offices to explore, you can find your ideal location and take the next step in your career.

We offer a generous employee benefits package that includes:

• Access to our Sopra Steria training and personal development academy
• A company car lease or mobility budget
• A company laptop and phone
• Private health insurance coverage
• Meal vouchers
• Social security and pension plan
• A competitive salary
• 26 holiday days

Sopra Steria is implementing the tools of the future today at the world’s largest businesses across industry and financial services. By being bold together, our professionals are changing how business is done.

Ready to take the next step? We’re here to support you all the way and we are looking forward to you application! Pending a successful application, we’ll be in touch with further steps in the application process.

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Sopra Steria is an equal opportunity employer. All qualified applicants will be considered for employment without regard to age, ancestry, nationality, color, family or medical leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, gender (including pregnancy), sexual orientation or any other characteristic protected by applicable local laws, regulations and ordinances. We foster a work environment that is inclusive and respectful of all differences.

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