Network & security Architect/Lead Engineer

OneSource Consulting; Antwerpen; Hybride; EUR 90 000 - 120 000; Plein temps

Résumé du poste

OneSource Consulting is seeking a senior Network & Security Architect/Lead Engineer to design, build, and operate the network and security landscape within a complex enterprise. You will lead architectural work, translate requirements into scalable solutions, and support critical incidents while coaching team members.

The role emphasizes hands-on operation, high availability, and collaboration with internal and external stakeholders. 1 day per week onsite/Brussels travel may be required.

Qualifications

• Bachelor/Master IT or equivalent through experience.
• Cisco CCNP or higher certification is required or strongly preferred.
• PCNSE and/or ACI certification are a strong plus.
• Architectural thinking with hands-on mentality.
• Strong communication with stakeholders and coaching.
• Analytical and problem-solving mindset.

Responsabilités

• Defining and developing network & security architectures (HLD/LLD).
• Drafting technical roadmaps and standards.
• Leading and supporting data center projects and migrations.
• Translating business and technical requirements into scalable solutions.
• Reviewing and monitoring the quality of implementations.
• Participating in operational support and complex troubleshooting (L3).
• Supporting critical incidents and problem analysis.
• Coaching and supervising engineers within the team.
• Collaborating with internal stakeholders and external partners.

Description du poste

JOB TITLE:NETWORK & SECURITY ARCHITECT/LEAD ENGINEER

LANGUAGES: ENGLISH, DUTCH

DURATION:ASAP - 04/08/2027

Job Description

• For a client within the Flemish Government, we are looking for a senior Network & Security profile with clear experience in architecture and design, combined with a willingness to also take on hands-on operational work.
• You will be part of the Network & Security Team and play a key role in designing, improving and helping to implement the network and security landscape within a complex enterprise environment.

This role combines:

Responsibilities

• Defining and developing network & security architectures (HLD/LLD)
• Drafting technical roadmaps and standards
• Leading and supporting data center projects and migrations
• Translating business and technical requirements into scalable solutions
• Reviewing and monitoring the quality of implementations
• Actively participating in operational support and complex troubleshooting (L3)
• Supporting critical incidents and problem analysis
• Coaching and supervising engineers within the team
• Collaborating with internal stakeholders and external partners

Technical requirements

• Strong experience (typically 8+ years) within network & security, with proven experience in architecture and design:
• Datacenter networking
• Security
• Load balancing
• VMware NSX

Additional:

• Experience with network automation / CI/CD / scripting is a plus
• Experience with high availability and mission critical environments
• Experience with migration and transformation processes

Education & certifications

• Bachelor/Master IT or equivalent through experience
• Cisco certification (CCNP or higher)
• PCNSE and/or ACI certification are strong pluses
• Architectural thinking combined with hands-on mentality
• Strong communication skills (technical + stakeholders)
• Coaching and knowledge sharing
• Analytical and problem-solving
• Proactive and independent

REQUIRED Skills

• Architectural thinking combined with hands-on mentality
• Cisco certification (CCNP or higher) or equivalent through experience
• Experience with high availability and mission critical environments are a must
• Experience with migration and transformation processes
• Experience with Network automation / CI/CD / scripting is a plus
• Experience with Network automation / CI/CD / scripting is a plus
• You are willing to work 1 day a week from Brussels, near North Station
• You are fluent in Dutch and English
• PCNSE and/or ACI certification are strong assets
• Hands-on experience with Cisco ACI is a must
• Strong communication skills (technical + stakeholders)
• Strong experience (typically 8+ years) within network & security, with proven experience in architecture and design