Senior Network Engineer IP-Security

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About this opportunity:

Ericsson is one of the leading providers of Information and Communication Technology (ICT) to service providers, with about 40% of the world’s mobile traffic carried through our networks. We enable the full value of connectivity by creating game-changing technology and services that are easy to use, adopt, and scale, making our customers successful in a fully connected world. For more than 150 years, our ideas, technology, and people have changed the world: real turning points that have transformed lives, industries, and society as a whole.

We are currently looking for a Senior Network Security Engineer to join our team in Maastricht. In this role, you will be part of a diverse and highly skilled team working on one of the leading telecom networks worldwide. You will collaborate with IP and telecom experts to design, build, secure, and improve a high-end network environment in close partnership with our customer.

You will work in a state-of-the-art, multi-vendor technology landscape where security, reliability, and continuous improvement are key:

• Security technologies: firewalling, DNS, load balancing, IPSec VPNs and IDPS


• Network vendors: Cisco and Juniper


• Firewalls: Check Point, Juniper, Cisco, Fortinet and F5


• Load balancing: F5


• DNS and IPAM: Infoblox

What you will do:

• Review high-level and low-level network designs and provide practical, value-adding feedback.


• Build and improve secure IP network solutions based on approved designs.


• Prepare, test, and validate changes in the Test Centre before implementation in the live network.


• Deploy network security changes and solutions through a strict change management process.


• Analyse current manual processes and help automate them using tools such as Ansible.


• Work closely with colleagues, vendors, and customer stakeholders to keep the network secure, stable, and future-ready.

The skills you bring:

• CCNA certification, along with additional certifications such as NSE4, CCSE/CCSA, and BIG-IP.


• Knowledge of network configuration management tools.


• Proven experience in network security engineering.


• Excellent problem-solving skills and attention to detail.


• Ability to work independently and as part of a collaborative team.


• Around 5-10 years of experience as an IP Network Engineer.


• Service-oriented mindset.


• Proficiency in Dutch is a significant asset, and business fluency in English is essential.

Nice to have:

• Experience working with Ansible and Python.


• Experience setting up and managing CI/CD pipelines.


• Experience with Infrastructure as Code.

What we offer

• The opportunity to work in an international organisation where technology and customer interaction come together.


• Industry-related training and room to keep developing your technical skills.


• Flexible working hours and a professional, collaborative working environment.


• A competitive compensation package, including an annual bonus.


• International career opportunities within a global ICT company.