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[FREELANCE] Network Security Engineer, Machelen
Client: NTT
Location: Machelen, Belgium
Job Category: Other
EU work permit required: Yes
Job Reference: 6342c62c7aeb
Job Views: 5
Posted: 01.08.2025
Expiry Date: 15.09.2025
Job Description:
Make an impact with NTT DATA
Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.
Your day at NTT DATA
The Network Engineer is a seasoned subject matter expert, responsible for designing, implementing, maintaining, and optimizing company network infrastructure to ensure efficient and secure communication.
This role involves collaborating with cross-functional teams to support networking needs and plays a critical role in ensuring network reliability, performance, and security.
Key responsibilities:
* Designs and plans network solutions, including LAN, WAN, data center, and cloud networks.
* Develops network architectures that meet the organization's current and future requirements.
* Configures, deploys, and manages network devices such as routers, switches, firewalls, load balancers, and wireless controllers.
* Implements and maintains network services and protocols.
* Implements and enforces network security measures, including firewalls, intrusion detection/prevention systems, access controls, and VPNs.
* Diagnoses and resolves complex network issues, utilizing advanced troubleshooting techniques and network monitoring tools.
* Analyzes network performance data to identify and address bottlenecks and irregularities.
* Optimizes network performance by analyzing traffic patterns, adjusting configurations, and implementing quality of service (QoS) measures.
* Creates and maintains comprehensive network documentation, including network diagrams, configurations, standard operating procedures, and incident reports.
* Collaborates with cross-functional teams, including systems administrators, security teams, application developers, and business stakeholders.
* Manages/participates in network-related projects, including network upgrades, migrations, and expansions.
* Develops project plans, defines objectives, and ensures successful project execution.
* Stays updated with emerging networking technologies and industry trends.
* Works with vendors to evaluate, procure, and manage networking equipment, services, and support contracts.
* Utilizes network monitoring and analysis tools to proactively monitor network health, identify issues, and respond to incidents.
* Performs any other related tasks as required.
To thrive in this role, you need to have:
* Seasoned understanding of networking concepts, protocols, architectures, and services.
* Proficiency in configuring and managing network devices such as routers, switches, firewalls, load balancers, and wireless controllers.
* Knowledge of network protocols and technologies such as BGP, OSPF, VLANs, VPNs, QoS, and security protocols.
* Experience with network monitoring and analysis tools.
* Strong documentation and communication skills to convey technical information effectively.
* Proficiency in network administration and configuration tools.
* Analytical problem-solving skills to diagnose and resolve complex network issues.
* Strong project management skills to lead and contribute to network projects.
* Familiarity with network security principles and best practices.
Academic qualifications and certifications:
* Bachelor's degree or equivalent in Information Technology, Computer Science, or a related field.
* Network Administration certification (Azure, Google, Amazon) preferred.
* Relevant certifications such as CompTIA Network+, Cisco Certified Network Associate (CCNA), or Juniper Networks Certified Associate (JNCIA) are beneficial.
* Relevant certifications such as Cisco Certified Internetwork Expert (CCIE), Juniper Networks Certified Internet Expert (JNCIE), or equivalent certifications are preferred.
Required experience:
* Relevant experience in network engineering or a related role.
* Experience working in a networking environment.
* Experience with network security.
* WAN and LAN experience.
* Experience with wireless equipment, protocols, standards, and wireless LAN design.
* Experience with cloud networking (AWS, Azure, etc.).
Workplace type: Hybrid Working
About NTT DATA
NTT DATA is a $30+ billion trusted global innovator of business and technology services. We serve 75% of the Fortune Global 100 and are committed to helping clients innovate, optimize and transform for long-term success. We invest over $3.6 billion each year in R&D to help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have diverse experts in more than 50 countries and a robust partner ecosystem of established and start-up companies. Our services include business and technology consulting, data and artificial intelligence, industry solutions, as well as the development, implementation and management of applications, infrastructure, and connectivity. We are also one of the leading providers of digital and AI infrastructure in the world. NTT DATA is part of NTT Group and headquartered in Tokyo.
Equal Opportunity Employer
NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us. Apply today.
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