Senior Infrastructure Engineer

OverviewWe are seeking a Senior Infrastructure & Network Engineer to design, implement, and manage hybrid infrastructure across AWS and on-premise environments. The role involves end-to-end planning, setup, and integration of servers, networks, and observability systems across multiple client and public transport operator sites.Key ResponsibilitiesAssess, design, install, and configure on-premise servers and infrastructure.Conduct site surveys across client data centres and offices to determine setup requirements.Develop detailed deployment and network design documents (rack, power, and connectivity).Plan and coordinate hardware deliveries and installations with vendors and project managers.Design and implement AWS and on-prem network routing, including Direct Connect and MPLS.Integrate system observability (Dynatrace SaaS, SNMP traps) with infrastructure components.Manage infrastructure operations — firewall configurations, access control, patching, and compliance.Collaborate with architecture and security teams to configure and secure deployed systems.Support the transition of infrastructure management from previous vendors.Requirements5+ years of experience in IT infrastructure or network engineering.Proven expertise in AWS networking (VPC, Direct Connect, Transit Gateway) and on-prem connectivity.Strong knowledge of routing, firewalls, VPNs, and network troubleshooting.Experience with observability tools (e.g., Dynatrace, Prometheus) and SNMP integrations.Familiarity with infrastructure operations (patching, IAM, certificates, compliance).Excellent documentation, coordination, and stakeholder communication skills.Relevant certifications (AWS Solutions Architect, CCNP/CCIE) preferred.This is an initial 12-month contract role on a full-time basis.