Job Description

Mission Overview:

Our client is a fully independent gas infrastructure group with 1,200 employees active in gas transmission and storage and liquefied natural gas terminalling. As a purpose-led company, together with all its stakeholders, the client contributes to a better society by shaping a bright energy future. Building on the unique assets of gas infrastructure and its commercial and technical expertise, the client is committed to accommodate hydrogen, biomethane or any other carbon-neutral energy carrier of the future.

Context:

The network team is responsible for the setup, security and operations of the network that is used for an extensive range of services in industrial and office contexts. To accomplish these tasks, the team can rely on a wide range of tools and technologies. The team is active in locations in Belgium, France, UK, Germany and Switzerland.

The team is also involved in many projects (from setup of connectivity in new data centre, securing and connecting to the cloud, modernizing the WAN network, supporting the functional evolutions requested by application teams). In this context, the team is looking for motivated people who can help contribute to the realisation of these challenges.

Timing & Place:

• Place of mission: Fluxys Belgium Headquarters – Avenue des Arts 31, 1040 Brussels
• The start date of this mission is as soon as possible
• This mission is foreseen for an initial duration of 1 year (renewable)
• The regime the first three months of the mission will be full time in the office. After this initial period hybrid work is possible, and this in the form of 3 days on-prem, 2 days to choose (under condition the work permits it).

Key Responsibilities:

• You will operate in a team supporting the company activities which run 24/7
• You will operate in an IT and OT environment, and are as such very diligent in preparing and executing changes
• You will participate in the deployment and maintenance of OT and IT systems
• You will be involved in the day-to-day operations of the team
• You analyse and resolve incidents and technical problems
• You support colleagues both in Belgium and other parts of Europe

General Skills:

• You master one of the national languages Dutch or French and are fluent in English
• You are always ready to work with other ICT teams
• You are a team player but also know how to work independently
• You have your own car
• You can travel if and when required to one of the Belgian locations

Technical Skills:

• Operational firewall knowledge (Palo Alto and Checkpoint)
• Basic understanding of routing and switching (CCNA level)
• Familiarity with Cisco CLI
• Experience with Python
• Experience with backend tools for monitoring, NAC, central syslog, authentication
• Any OT experience is considered a plus
• A background in computer science will be looked favourably upon
• A first relevant working experience

Competencies:

• Background in computer science (nice to have)
• OT experience (nice to have)
• Basic understanding of routing and switching (CCNA level) (must have)
• Experience with backend tools for monitoring, NAC, central syslog, authentication (must have)
• Experience with Python (must have)
• Familiarity with Cisco CLI (must have)
• First relevant working experience (must have)
• Fluent in English (must have)
• Fluent in French and/or Dutch (must have)
• Operational firewall knowledge (Palo Alto and Checkpoint) (must have)
• Possession of your own car (must have)

Mission Overview:

This is a Keystone Solutions consultancy mission delivered on-site for our client. As a Keystone Solutions consultant, you will be embedded in the client's network team to carry out all responsibilities listed below while working closely with the client's stakeholders and systems.

About the client and context: Our client is a fully independent gas infrastructure group with 1,200 employees active in gas transmission and storage as well as liquefied natural gas terminalling. As a purpose-led company, our client contributes to a better society by shaping a bright energy future. Building on the unique assets of gas infrastructure and its commercial and technical expertise, the client is committed to accommodating hydrogen, biomethane, and other carbon‑neutral energy carriers of the future. The network team is responsible for the setup, security, and operations of the network used for an extensive range of services in both industrial and office contexts, supported by a wide range of tools and technologies. The team is active in locations in Belgium, France, the United Kingdom, Germany, and Switzerland and is involved in many projects (from setting up connectivity in new data centers, securing and connecting to the cloud, modernizing the WAN network, to supporting the functional evolutions requested by application teams). In this context, we are looking for motivated people who can help contribute to the realization of these challenges as Keystone Solutions consultants.

Timing & Place:

• Place of mission: the client's headquarters – Avenue des Arts 31, 1040 Brussels (Belgium)
• Start date: as soon as possible
• Initial duration: 1 year (renewable)
• On-site/Hybrid: First three months full time in the office; after this initial period, a hybrid model applies with 3 days on-premises and 2 days remote (subject to work requirements)

Consultancy Nature of Work:

Under Keystone Solutions' consultancy model, you will perform all responsibilities on site at the client's locations, integrating with their IT and OT environments while leveraging Keystone Solutions' guidance, methods, and community of experts. You will represent Keystone Solutions' standards of delivery, communication, and quality in every engagement and ensure seamless coordination between client teams and Keystone Solutions.

Key Responsibilities (performed as a Keystone Solutions consultant):

• Operate in a team supporting company activities which run 24/7.
• Work across IT and OT environments, preparing and executing changes with high diligence.
• Participate in the deployment and maintenance of OT and IT systems.
• Be involved in the day-to-day operations of the team.
• Analyze and resolve incidents and technical problems.
• Support colleagues in Belgium and other parts of Europe.
• Contribute to projects including:
  • Setup of connectivity in new data centers.
  • Securing and connecting to the cloud.
  • Modernizing the WAN network.
  • Supporting functional evolutions requested by application teams.

General Skills (must-haves unless noted):

• Master one of the national languages (Dutch or French) and be fluent in English.
• Always ready to work with other ICT teams.
• Team player who can also work independently.
• Possession of your own car.
• Ability to travel, when required, to the client's Belgian locations.

Technical Skills (must-haves unless noted):

• Operational firewall knowledge: Palo Alto and Check Point.
• Basic understanding of routing and switching (CCNA level).
• Familiarity with Cisco CLI.
• Experience with Python.
• Experience with backend tools for monitoring, NAC, central syslog, and authentication.
• Any OT experience is considered a plus (nice to have).
• A background in computer science will be looked on favorably (nice to have).
• First relevant working experience.

Dynamic Projects:

As a Keystone Solutions consultant, you will take on diverse challenges: scaling secure connectivity for new data centers, strengthening cloud connectivity and security, modernizing WAN architectures, and supporting application-driven network evolutions. Beyond this mission, Keystone Solutions opens doors to varied client environments across industries and European geographies, accelerating your exposure to modern network, security, and OT/IT convergence use cases.

Turbo-Charged Learning and Development:

• Access to Keystone Solutions' consultant community for peer learning, reviews, and best practices.
• Supported path for certifications and upskilling (e.g., CCNA/CCNP, Palo Alto, Check Point, OT security fundamentals, Python automation for networking).
• On‑the‑job coaching to strengthen change management discipline in IT/OT environments and incident response excellence for 24/7 operations.

Ambition Skyrocketing within a Consultancy Framework:

• Clear, merit-based progression through increasingly complex client engagements.
• Opportunities to shape standards and reusable accelerators for network, security, and OT/IT integration across multiple clients.
• Pathways to lead workstreams, mentor other consultants, and influence solution roadmaps.

Keystone Solutions' Values in Action:

Being a K‑Stone means you bring our core values to every client project: ownership and reliability in 24/7 contexts; curiosity and craftsmanship in complex IT/OT environments; integrity and transparency in change management; collaboration across multidisciplinary ICT and operations teams; and a tangible focus on impact, safety, and resilience. These values shape how we plan, execute, and continuously improve each consulting engagement.

Who Thrives in This Role:

• Consultants who enjoy hands-on operations and project delivery in critical infrastructure environments.
• Professionals who communicate clearly across teams and languages (Dutch/French and English) and who value disciplined, low‑risk change execution in production networks.
• Problem solvers eager to blend network security, routing/switching fundamentals, Python-driven automation, and OT awareness.

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal