Senior Network Engineer
About Us: At Paysend, we’re building a world where moving money is instant, open, and effortless. Our mission? To create the world’s largest open, instant digital payment network - eliminating friction from global finance for people and businesses in 170+ countries. We’re not just building payment systems; we’re building connections. Our technology links major card networks and local payment rails, reaching more than 20 billion endpoints. That means money moves instantly, globally, and securely - a promise that drives us to deliver excellence in every solution we create. We’re builders, problem-solvers, and doers who think globally, move fast, and take ownership. You’ll join a team that raises the bar and thrives in a connected, principle-driven culture - empowering you to innovate with momentum and make a meaningful impact. From London to Belgrade, Dublin to Miami, we’re united by one goal: making cross-border payments simpler for everyone. Join the team driving the next evolution of global finance. Download the Paysend app from the App Store or Google Play. About The Role: We’re a global fintech scaling our network infrastructure across multiple regions, and we’re looking for a Senior Network Engineer with deep, hands-on experience across AWS, GCP, Azure, and on-prem. You’ll own the design, security, and reliability of the networks that keep our financial services running 24/7 - in a high-availability, compliance-driven environment. What You'll Do (Responsibilities): Design and operate hybrid network infrastructure spanning data centres, WAN/LAN, and multi-cloud (AWS, GCP, Azure). Architect cloud networking - VPCs/VNets, transit gateways, peering, and private connectivity (Direct Connect, Cloud Interconnect, ExpressRoute). Build secure, fault-tolerant on-prem-to-cloud connectivity with a consistent security posture. Configure and manage routers, switches, firewalls, and load balancers. Implement and maintain security controls - NGFW, IDS/IPS, segmentation, and access controls. Monitor performance (SNMP, NetFlow/sFlow), troubleshoot complex issues, and minimise downtime. Lead changes through formal change management; plan and execute upgrades and migrations. Automate provisioning and configuration (Python, Bash, infrastructure-as-code). Maintain documentation and DR/business-continuity plans; ensure regulatory compliance. Collaborate with security, platform, SRE, and compliance teams, and mentor junior engineers. What You’ll Need To Be Successful In This Role: Strong networking fundamentals: TCP/IP, BGP, OSPF, VLANs, VPNs, routing, switching, load balancing. Proven multi-cloud network experience across AWS, GCP, and Azure, plus hybrid connectivity. Hands-on experience with Palo Alto firewalls and Panorama, and other NGFW platforms (FortiGate, Forcepoint, Cisco ASA/Firepower). Solid network security and compliance knowledge - ideally in a regulated/fintech setting. Scripting and automation skills (Python, Bash). Strong problem-solving, communication, and documentation skills. Nice to have: Arista (BGP internet borders), Cisco Nexus (core), Cisco SAN switches. Detailed knowledge of: STP, 802.1Q, vPC/MLAG, LACP, PBR, FHRP (HSRP/VRRP), ACLs, NAT, QoS, IPSec VPN (AnyConnect, L2L), L2VPN/L3VPN, failover. Practical experience with RIPE as a LIR. Why Join Paysend? Make a Global Impact: Directly impact millions of users worldwide Accelerate Your Career: Benefit from internal mobility, mentoring programs, and continuous learning opportunities Thrive in a Connected, Global Organization: Collaborate with colleagues across our international hubs and more Embrace a Principle-Driven & Focused Culture: Work in an organization guided by strong principles and values that actually help you achieve more than you thought possible Enjoy Competitive Compensation and Benefits: Receive a competitive salary, benefits, and flexible work arrangements Apply To This Job