Lead Infrastructure Engineer- DMZ Perimeter
Aumni
Assume a vital position as a key member of a high-performing team that delivers infrastructure and performance excellence. Your role will be instrumental in shaping the future at one of the world's largest and most influential companies.
Job responsibilities
- Research, design, and engineer DMZ perimeter switching and routing across Cisco data center platforms.
- Design client-facing solutions and introduce new feature requirements aligned to business needs.
- Develop and maintain scripts and tooling to pave/repave devices and automate routine operational tasks.
- Standardize and publish engineering artifacts, golden configurations, and product standards.
- Plan and execute hardware and software certification cycles with documented test matrices and results.
- Serve as the L3 escalation point for Network Operations and Service Delivery during critical incidents.
- Coordinate cross-team change activities and stakeholder communications to minimize operational risk.
- Implement and optimize BGP, OSPF/EIGRP, VRF segmentation, and ISP edge routing policies for availability and performance.
- Build and maintain CI/CD workflows for network automation with pre- and post-change validation gates.
- Document runbooks, change procedures, and backout plans to support reliable and auditable operations.
- Monitor, troubleshoot, and tune DMZ performance, availability, and resilience across environments.
Required qualifications, capabilities, and skills
Formal training or certification on software engineering concepts and 5+ years applied experience
Demonstrates strong experience of network design, engineering, and implementation experience within large enterprise environments.
- Demonstrate deep expertise in DMZ architectures and Cisco data center fabrics (e.g., Nexus, vPC, EVPN/ACI).
- Master BGP, OSPF, EIGRP, VRF segmentation, TCP/IP fundamentals, and ISP routing practices.
- Engineer scalable internet edge and peering policies including prefix filtering, communities, and traffic engineering.
- Automate network workflows using Python for provisioning, validation, and operational tooling.
- Apply Ansible to deliver idempotent configurations and standardized device pave/repave builds.
- Use Terraform to define and manage network constructs and infrastructure as code where applicable.
- Work with JSON and RESTful APIs and integrate automation into CI/CD pipelines such as Jenkins.
- Understand microservices networking patterns, service discovery, and API-driven integrations.
- Operate and integrate network security technologies including firewalls, proxies, and load balancers.
- Support internet-facing services traversing the DMZ with appropriate NAT and policy controls.
- Apply Agile methodologies such as Kanban and Scrum in planning and delivery.
Carry out critical infrastructure engineering solutions across multiple technical areas as an integral part of an agile team