Network Security Engineer
First seen by Alion on Sep 23, 2026.
We are looking for a Network Security Engineer to work in Lisbon who's eager to embark on an exciting new opportunity! https://form.typeform.com/to/PYqxT8NO?opportunity=Marina%20Morais&channel=ITJobs
About KWAN
We connect IT professionals with projects that match their skills, professional experience, and goals, then we offer a career progression program, delivered by in-house specialists - our People Experience Partners - to guide them through our journey with us.
What is this challenge about
• Ensure the operational maintenance of network security infrastructures, with a strong focus on quality, productivity, and security.
• Diagnose and troubleshoot security and network-related issues, identifying the root causes of malfunctions and traffic flow blockages.
• Implement, manage, and maintain security policies and firewall rules.
• Create, modify, review, and optimize firewall security rules according to business and security requirements.
• Propose and implement improvements to existing security policies and processes.
• Define and apply best practices for security policy management.
• Provide technical expertise, support, advice, and guidance in the area of network security.
• Collaborate with experts from other technical domains, including Networking, Infrastructure, Systems, and Security.
• Ensure compliance with relevant IT security, quality, and operational standards.
• Manage operational activities such as requests, incidents, changes, and technical documentation.
• Ensure the required level of service quality in accordance with Service Level Agreements (SLAs).
• Contribute to network segmentation and micro-segmentation initiatives.
What we are looking for
• +1 year of proven experience as a Network Security Engineer;
• Professional experience in Network Security / Network Engineering;
• Hands-on experience with firewall security rules and policies;
• Knowledge of Palo Alto and/or Fortinet firewalls;
• Knowledge or experience with network segmentation and micro-segmentation technologies;
• Familiarity with IT operational processes, including incident, request, change management, and documentation;
• Fluency in English (minimum B2).
Do you meet most of the position requirements? Then grab this opportunity and apply now! https://form.typeform.com/to/PYqxT8NO?opportunity=Marina%20Morais&channel=ITJobs
What we offer
• A project that matches your skills and ambitions, as well as your preferences for working policies and culture.
• A competitive salary with awesome benefits and opportunities to leverage your knowledge and network to earn additional income.
• An empowering and respectful work culture enriched with social and learning events.
• A People Experience Partner specially assigned to you - your go-to career guide, responsible for supporting your growth, facilitating training, and ensuring your work-life balance at KWAN.
Some Words From Our Colleagues
“At KWAN, they make sure that I feel comfortable with the client I’m working for and that what I’m doing aligns with my career aspirations.”
- Luis Caldeira, DevOps @ KWAN
Grab this opportunity, apply now! https://form.typeform.com/to/PYqxT8NO?opportunity=Marina%20Morais&channel=ITJobs