b Overview /b p As Senior Technology Architect – Network, you define end-to-end network strategy and reference architectures across data centers, campuses, WAN/SD-WAN, cloud, and edge. You partner with product, security, platform engineering, and operations to deliver vendor-agnostic, automation-first designs at scale. You lead complex transformations to ensure resilience, security (Zero Trust), performance, and cost efficiency. This role offers impact across global enterprises shaping multi-cloud networking and secure connectivity. /p b Responsibilities /b ul li Define target state and designs for DC, Campus, WAN/SD-WAN, Cloud Networking, and Edge with standards and reference architectures /li li Develop high-level and low-level designs including L2/L3, routing, segmentation, DNS, IPAM, firewalling, service insertion, and observability /li li Architect multi-cloud networks (AWS/GCP/Azure) including VPC/VNet, Transit Gateways, Private Service Connect/Endpoint, Direct Connect/Interconnect, cross-cloud connectivity, and service mesh /li li Drive modernization to EVPN/VXLAN, intent-based networking, Zero Trust segmentation, and SASE/SSE /li li Apply Zero Trust principles across identity-aware segmentation and secure flows; define guardrails and policy-as-code; integrate with SIEM/SOAR /li li Collaborate with CISO and platform teams to align with NIST, CIS, ISO 27001 and regulatory standards /li li Engineer for high availability, fast reroute, ECMP, anycast; design for latency-sensitive workloads; define traffic engineering strategies /li li Plan DR/failover topologies; conduct chaos testing and capacity planning /li li Drive automation-first delivery using Terraform/Ansible/Python; embed policy-as-code and CI/CD checks /li li Implement observability: streaming telemetry, NetFlow/IPFIX, SNMP, syslog, synthetic testing, DEM; govern SRE practices /li li Architect cloud networking at scale, including VPC/VNet design, NAT, ingress/egress, hybrid connectivity, PrivateLink/PSC /li li Integrate Kubernetes networking and secure service-to-service communication; support edge/IoT, SD-Branch, and local breakout with unified policy /li li Lead SD-WAN strategy and migration from MPLS to internet/5G underlay with application-aware routing; define SASE/SSE patterns /li li Advise executives on network strategy, roadmap, TCO/ROI, and risk; chair Design Authority and ensure non-functional requirements are met; mentor teams /li /ul b Key requirements /b ul li 12+ years in networking /li li 5+ years in architecture leadership /li li Expertise in routing switching (OSPF, BGP, IS-IS), EVPN/VXLAN, MPLS, QoS/CoS, multicast, NAT, DNS/DHCP/IPAM /li li Leaves room for leaf-spine DC fabrics, campus, and global WAN design /li li Deep knowledge of segmentation, NGFWs, IDS/IPS, DDoS, WAF, PKI, identity-driven policy, and SASE/SSE /li li Hands-on policy design across on-prem and cloud; SIEM/SOAR integration /li li Strong AWS/GCP/Azure networking experience; Kubernetes networking knowledge /li li Automation experience with Terraform, Ansible, Python; CI/CD for network changes; CIS Benchmarks /li li Observability experience with Prometheus/Grafana, NetFlow/IPFIX, streaming telemetry /li /ul ul li stakeholder collaboration /li li leadership and mentoring /li li strategic thinking /li li OSPF, BGP, IS-IS /li li EVPN/VXLAN, MPLS /li li QoS/CoS, multicast, NAT, DNS/DHCP/IPAM /li /ul
Sr. Technology Architect - DC Network architecture - UK, Germany, Netherlands employer: Infosys Technologies
Infosys is an exceptional employer, offering a dynamic work culture that fosters innovation and collaboration among diverse teams in the heart of London. With a strong commitment to employee growth, we provide continuous learning opportunities and mentorship, ensuring that our consultants are equipped to excel in their roles while contributing to meaningful projects that drive digital transformation for clients worldwide.
