{"id":2159289,"url":"https://alion.io/job/kwan-network-security-engineer","title":"Network Security Engineer","company":{"id":4374620,"name":"KWAN","domain":"kwan.pt","url":"https://alion.io/company/kwan-2","size_band":"201-500","is_staffing_agency":false,"employer_type":"staffing","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Security","role_family":"Security","seniority":"junior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Portugal"],"countries":["PT"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":23000,"max_usd":65000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":528},"experience_years_min":1,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-09-23T00:00:00Z","employer_posted_date":null,"last_verified_at":"2026-09-23T00:00:00Z","board_verified":false,"closed_at":null,"days_open":24,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":24},"description":"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\nAbout KWAN\nWe 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.\nWhat is this challenge about\n• Ensure the operational maintenance of network security infrastructures, with a strong focus on quality, productivity, and security.\n• Diagnose and troubleshoot security and network-related issues, identifying the root causes of malfunctions and traffic flow blockages.\n• Implement, manage, and maintain security policies and firewall rules.\n• Create, modify, review, and optimize firewall security rules according to business and security requirements.\n• Propose and implement improvements to existing security policies and processes.\n• Define and apply best practices for security policy management.\n• Provide technical expertise, support, advice, and guidance in the area of network security.\n• Collaborate with experts from other technical domains, including Networking, Infrastructure, Systems, and Security.\n• Ensure compliance with relevant IT security, quality, and operational standards.\n• Manage operational activities such as requests, incidents, changes, and technical documentation.\n• Ensure the required level of service quality in accordance with Service Level Agreements (SLAs).\n• Contribute to network segmentation and micro-segmentation initiatives.\nWhat we are looking for\n• +1 year of proven experience as a Network Security Engineer;\n• Professional experience in Network Security / Network Engineering;\n• Hands-on experience with firewall security rules and policies;\n• Knowledge of Palo Alto and/or Fortinet firewalls;\n• Knowledge or experience with network segmentation and micro-segmentation technologies;\n• Familiarity with IT operational processes, including incident, request, change management, and documentation;\n• Fluency in English (minimum B2).\nDo you meet most of the position requirements? 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