Senior Network Engineer, Fintech
On-siteAthens, Attica, Greece
Job Summary
Design, implement, and maintain enterprise network infrastructure including switches, routers, wireless networks, and next-generation firewalls. Administer security technologies such as firewalls, VPNs, and network access control while monitoring systems to ensure high availability and performance. Investigate complex network and security incidents, perform vulnerability remediation, and support Layer 2 and Layer 3 services including routing, DNS, and DHCP. Collaborate with internal teams and vendors on infrastructure upgrades, disaster recovery planning, and operational improvements. Maintain accurate technical documentation and configuration standards while ensuring compliance with organizational policies and industry best practices.
Required Qualifications
- 5+ years of hands-on experience as a Network Engineer or Network Security Engineer
- Strong understanding of enterprise networking principles and protocols, including TCP/IP, DNS, DHCP, VLANs, and IEEE 802.1X
- Strong knowledge of Layer 2 technologies, including Spanning Tree Protocol and Link Aggregation Control Protocol
- Good understanding of Layer 3 routing technologies and protocols
- Strong knowledge of VPN technologies, including IPsec VPN and SSL VPN
- Extensive experience with Cisco networking technologies, including switching, routing, and enterprise campus networks
- Hands-on experience with enterprise firewall platforms such as Cisco ASA, Cisco Firepower, and Fortinet FortiGate
- Familiarity with enterprise wireless networking solutions
- Working knowledge of Windows and Linux operating systems
- Experience with network monitoring, troubleshooting, and diagnostic tools
- Understanding of network security best practices, including segmentation, zero-trust principles, and secure network architecture
- Familiarity with authentication and identity services such as RADIUS, Active Directory, and LDAP
- Experience with vulnerability assessment, hardening, and remediation processes
- Ability to create and maintain technical documentation, network diagrams, configuration standards, and standard operating procedures
- Excellent problem-solving, analytical, communication, and collaboration skills
Desired Qualifications
- Professional certifications such as Cisco CCNP Enterprise, CCNP Security, Fortinet NSE, FCP, or FCSS
Hiring someone like this?
Get your role in front of qualified candidates on Sorce.