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Senior Network Engineer

14 hours, 6 minutes ago
Poland
Full-time
Senior
Network Engineer
DevOps and Infrastructure
Ansible AWS Azure Kubernetes Load Balancing Terraform Wireshark
Apply Now
XTB

XTB

XTB is a leading European brokerage house providing access to financial markets with forex, equities, and commodity CFDs. Backed by advanced technology and superior execution speeds, we offer over 700 global markets for trading, making us one of the fa...

Capital Markets
501-1000
Founded 2002
View All Jobs 16

Description

  • Design, maintain, and develop LAN, WAN, and WLAN networks across offices and data centers.
  • Manage traditional data-center networks and VXLAN/EVPN-based IP fabrics.
  • Configure and optimize BGP, OSPF, inter-site connectivity, and service-provider connections.
  • Administer firewalls, security policies, IPsec VPN tunnels, and DDoS protection solutions.
  • Manage F5 BIG-IP LTM and DNS/GSLB services for load balancing and cross-data-center traffic distribution.
  • Monitor infrastructure, troubleshoot incidents, and optimize network performance and availability.
  • Plan and implement infrastructure changes, upgrades, redundancy tests, and failover mechanisms for BCP/DR.
  • Automate network infrastructure management and operational workflows using Terraform, Ansible, and GitLab CI/CD.
  • Maintain technical documentation, configuration standards, and operational procedures.
  • Conduct root-cause analysis and implement preventive measures with infrastructure, security, and application teams.

Requirements

  • 5+ years of hands-on experience maintaining and developing enterprise and data-center networks.
  • Strong knowledge of Cisco Nexus and Catalyst platforms, NX-OS, IOS-XE, Cisco FTD, FMC, and ASA firewalls.
  • Experience with switching and high-availability technologies, including VLAN, STP, LACP, vPC, and HSRP/VRRP.
  • Experience configuring and troubleshooting BGP and OSPF, as well as VXLAN/EVPN underlay and overlay networks.
  • Experience managing WLAN networks, controllers, and access points, including 802.1X, RADIUS, and TACACS+.
  • Knowledge of firewall security policies, ACLs, NAT, IPsec VPNs, and DDoS protection mechanisms.
  • Experience administering F5 BIG-IP LTM and DNS/GSLB, including health monitoring and global server load balancing.
  • Strong troubleshooting skills using monitoring tools, logs, NetFlow/sFlow, Wireshark, and tcpdump.
  • Hands-on experience automating network infrastructure with Terraform, Ansible, and GitLab CI/CD.
  • Fluent Polish and technical English at B2 level or higher; Azure/AWS networking, IP multicast, Kubernetes networking, and low-latency fintech, trading, or telecom experience are preferred.

Benefits

  • Training budget for courses and conferences.
  • Extra day off for your birthday and an additional day off for parents.
  • Private medical care and group insurance.
  • Equipment tailored to your needs.
  • Access to English e-learning, benefits, and wellbeing platforms.
  • Remote work, Warsaw office work, or a coworking space in your city.
  • Clear career paths, regular feedback, and knowledge sharing within an experienced team.
  • Regular team-building meetings.

Interested in this position?

Apply directly on the company website

Apply Now

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