Cybersecurity Network Security Specialist at ARHS

Warsaw, Masovian Voivodeship, Poland -

Full Time

Start Date

Immediate

Expiry Date

13 Sep, 26

Salary

0.0

Posted On

15 Jun, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Network Security, Firewall Management, TCP/IP, Azure Networking, Cisco Routing and Switching, Palo Alto Panorama, VPN, Zero Trust, SASE/SSE, Packet Analysis, Network Segmentation, 802.1X, NAC, SSL/TLS, PKI, WAF

Industry

IT Services and IT Consulting

Description

Company Description Arηs Group, Part of Accenture, specializes in the management of complex public sector IT projects, including systems integration, informatics and analytics, solution implementation and program management. Our team helps lead clients through digital and information systems design, bringing expertise in a variety of areas ranging from software development, data science and security management to machine learning, cloud, and mobile development. Arηs Group was acquired by Accenture in July 2024. Job Description Role Overview You will manage and secure enterprise network infrastructure across on-prem and cloud environments, ensuring reliable connectivity, strong security posture, and consistent network operations. The role combines hands-on administration, troubleshooting, and continuous improvement of network security capabilities. Responsibilities Network Security & Operations Administer, monitor, and troubleshoot network security solutions Manage firewalls, routing, switching, and secure access technologies Ensure secure and stable operation of enterprise network infrastructure Support hybrid connectivity (on-prem and cloud environments) Support & Troubleshooting Provide 2nd line support for network and security-related incidents Perform advanced troubleshooting (network flows, packet analysis, firewall dataplane) Investigate and resolve connectivity, performance, and security issues Configuration & Implementation Implement and maintain network configurations across environments Manage VPNs, secure remote access, and network segmentation Support wireless and wired network integrations (e.g. 802.1X, NAC) Security & Continuous Improvement Identify gaps in network security controls and propose improvements Support Zero Trust and modern security architecture initiatives Contribute to migration efforts (e.g. SASE/SSE, cloud networking) Documentation & Governance Create and maintain technical documentation and operating procedures Ensure adherence to network security policies and standards Qualifications Core Networking Strong understanding of TCP/IP, routing, and network security policies Knowledge of DNS, DHCP, NTP and core network services Understanding of wired and wireless access technologies Security & Encryption Knowledge of HTTPS, SSL/TLS, PKI, and certificate-based authentication Experience with traffic filtering (stateful/stateless) Infrastructure & Tools Hands-on experience with enterprise network environments Experience with Cisco (routing/switching), Palo Alto (firewalls, Panorama), wireless solutions Familiarity with endpoint network configurations (Windows, Linux, iOS) Cloud & Modern Networking Azure networking (VNets, segmentation, private endpoints, hybrid connectivity) Network security controls (NSGs, routing, isolation) Experience with SASE/SSE and Zero Trust principles is an advantage Exposure to WAF and Load Balancing solutions Certifications CCNP Security or equivalent (required) CCSP or Azure AZ-305 (nice to have) Key Competencies Strong analytical and troubleshooting skills Attention to detail and sense of responsibility Ability to work independently in complex environments Clear communication with technical and non-technical stakeholders Proactive, structured, and team-oriented mindset Additional Information This role requires occasional travel within Europe (up to ~10 times/year) Driving license (Category B) required

Responsibilities

Manage and secure enterprise network infrastructure across on-premises and cloud environments to ensure reliable connectivity and a strong security posture. This includes administering firewalls, troubleshooting network incidents, and implementing Zero Trust architecture initiatives.