Senior Network Security Engineer

Posted:
5/25/2026, 3:21:06 AM

Location(s):
Matosinhos, Portugal

Experience Level(s):
Expert or higher ⋅ Senior

Field(s):
IT & Security ⋅ Software Engineering

Workplace Type:
On-site

We are seeking a skilled and passionate senior Senior Network Security Engineer to join our team in Porto. The Senior Network Security Engineer will be responsible for setting up, configuring, and supporting the CORE network infrastructure, including firewalls, HLB, DNS, proxies, and more. The role involves designing network solutions, troubleshooting, and optimizing the network environment while introducing automation services. The candidate will also participate in infrastructure and business projects, ensuring secure and efficient network operations.

You will champion a security-first culture, participate in initiatives that protect client platforms and data, reduce risk exposure, strengthen defenses, and continuously improve the client's overall security posture.

Responsibilities

  • Set up, configure, and support CORE network infrastructure (firewalls, HLB, DNS, GLB, IP, proxies, etc.)

  • Create network designs based on infrastructure and application requirements

  • Participate in network design reviews for infrastructure and segmentation

  • Review, implement, and enhance the network environment

  • Maintain and update documentation of corporate network implementations

  • Provide L3-level troubleshooting for network systems

  • Support network projects by delivering required infrastructure and documentation

  • Perform vulnerability assessments, validation, and upgrades on network systems and applications

  • Maintain processes like configuration management and infrastructure monitoring

  • Optimize current network implementations and introduce automation services

Qualifications

  • Minimum of 12 years of experience in network security or a related field

  • Extensive experience with CheckPoint and Palo Alto technologies, including:

  • CheckPoint VSX and high-end appliances

  • Palo Alto Panorama, Prisma, IAF, and SD-WAN.

  • Experience with F5 technologies

  • Experience with Cloudflare product management

  • Knowledge of AlgoSec products

  • Strong knowledge of routing and switching technologies (BGP, ISIS, OSPF, VRF, MPLS, GRE, IPSEC, OTV)

  • Excellent understanding of TCP/IP protocols, DNS (Infoblox), and QoS

  • Automation and development skills (Python, Ansible, Bash, Netbrain, Terraform)

Legal: Must own a valid work permit or EU/Schengen Space Nationality to legally work in Portugal.

Preferred Qualifications 

  • Certifications

    • CheckPoint Certified Security Expert (CCSE).

    • Palo Alto Networks Certified Network Security Engineer (PCNSE).

    • F5 Certified Technology Specialist (F5-CTS).

    • Degree in Computer Science, Information Systems, or related disciplines.

Additional Information

  • Flexibility for regular travel to Paris or Brussels (at least once per quarter)

  • Teleworking is possible, with a minimum of 8 days per month on-site

About Accenture

Accenture is a leading global professional services company that helps the world’s leading businesses, governments and other organizations build their digital core, optimize their operations, accelerate revenue growth and enhance citizen services—creating tangible value at speed and scale. We are a talent- and innovation-led company with approximately 791,000 people serving clients in more than 120 countries. Technology is at the core of change today, and we are one of the world’s leaders in helping drive that change, with strong ecosystem relationships. We combine our strength in technology and leadership in cloud, data and AI with unmatched industry experience, functional expertise and global delivery capability. Our broad range of services, solutions and assets across Strategy & Consulting, Technology, Operations, Industry X and Song, together with our culture of shared success and commitment to creating 360° value, enable us to help our clients reinvent and build trusted, lasting relationships. We measure our success by the 360° value we create for our clients, each other, our shareholders, partners and communities.

Visit us at www.accenture.com 

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Accenture

Website: https://accenture.com/

Headquarter Location: Dublin, Dublin, Ireland

Employee Count: 10001+

Year Founded: 1989

IPO Status: Public

Last Funding Type: Grant

Industries: Business Information Systems ⋅ Construction ⋅ Consulting ⋅ Information Services ⋅ Information Technology ⋅ Infrastructure ⋅ Management Consulting ⋅ Outsourcing