Senior Network Engineer (Fintech)

Location: Remote, with access to the office in Warsaw or a coworking space in your city; Poland-based role.

Salary: PLN 21,250–27,000 per month

Company

hirify.global is a global fintech company focused on online trading of financial instruments and operating across several countries.

What you will do

• Design, maintain, and develop LAN, WAN, and WLAN networks across offices and data centers.
• Manage traditional data center networks, VXLAN/EVPN IP fabrics, routing, inter-site connectivity, and service-provider connections.
• Administer Cisco firewalls, security policies, ACLs, NAT, IPsec VPNs, F5 BIG-IP load-balancing and DNS/GSLB solutions, and DDoS protection.
• Monitor infrastructure, troubleshoot incidents, analyze root causes, and optimize network performance and availability.
• Plan and implement infrastructure changes, upgrades, redundancy, failover, and BCP/DR initiatives.
• Automate network infrastructure and operational workflows with Terraform, Ansible, and GitLab CI/CD while maintaining technical documentation.

Requirements

• 5+ years of hands-on experience maintaining and developing enterprise and data center networks.
• Strong practical knowledge of Cisco Nexus and Catalyst platforms, NX-OS, IOS-XE, Cisco FTD, FMC, and ASA firewalls.
• Practical knowledge of VLAN, STP, LACP, vPC, HSRP/VRRP, BGP, OSPF, and VXLAN/EVPN underlay and overlay architectures.
• Experience managing WLAN networks, controllers, and access points, with knowledge of 802.1X, RADIUS, and TACACS+.
• Practical knowledge of firewalls, security policies, ACLs, NAT, IPsec VPNs, F5 BIG-IP LTM, F5 BIG-IP DNS/GSLB, load balancing, and health monitors.
• Knowledge of DDoS protection and experience analyzing network traffic during incidents.
• Strong troubleshooting skills using monitoring systems, logs, NetFlow/sFlow, Wireshark, and tcpdump.
• Hands-on experience with Terraform, Ansible, and GitLab CI/CD for network infrastructure automation.
• Ability to manage changes independently, resolve issues, take ownership of infrastructure, and improve the environment proactively.
• Polish proficiency sufficient for fluent communication and English at minimum B2 level, including spoken and written communication with vendors and work with technical documentation.

Nice to have

• Experience with Azure or AWS networking services and integration with on-premises infrastructure.
• Knowledge of IP multicast, including IGMP and PIM.
• Knowledge of Kubernetes networking, including CNI, routing, NetworkPolicy, and load balancing.
• Experience in high-availability, low-latency environments such as fintech, trading, or telecommunications.

Culture & Benefits

• Influence on company and product development within an experienced knowledge-sharing team.
• Regular feedback, clear career paths, team-building meetings, and development opportunities.
• Training budget for courses and conferences, plus access to English e-learning and benefits platforms.
• Remote work from the office in Warsaw or a coworking space in your city, with tailored equipment.
• Private medical care, group insurance, wellbeing platform, an extra birthday day off, and an extra day off for parents.