Senior Infrastructure Engineer I

Joining Amex Tech means discovering and shaping your contribution to something big. Here, you can work alongside talented tech teams and build a unique career with the Powerful Backing of American Express. With a range of opportunities to work with the latest technologies, and a commitment to back the broader engineering community through open source, our mission is to power your success. Because Amex Tech is powered by our technology, our culture, and our colleagues.

The Technology organization enables and accelerates the companys growth strategies, delivering global capabilities and services in support of Amexs customers and colleagues, while maintaining 24/7 servicing and availability to ensure an uninterrupted, high-quality customer experience. Technology provides the foundation for everything we do in the company while driving differentiation through building and leveraging innovative technology and data insights.

Sr Infrastructure Engineer I collaborates with internal and external teams to design and implement infrastructure solutions, resolves complex technical issues, and ensures optimal system performance while providing strategic guidance to align with business objectives.

• Collaborates with multiple cross-functional teams within budget and schedule, ensuring timely issue resolution and maintaining high standards of design, implementation, testing, and compliance
• Collaborates with application teams to integrate business needs into comprehensive infrastructure solutions, aligning with business objectives and platform roadmap
• Leads infrastructure design and selection, ensuring solutions meet customer needs and strategic goals
• Diagnoses and resolves complex infrastructure issues, providing support during outages to ensure minimal disruption
• Monitors and addresses capacity and availability issues, conducts performance assessments, and supports certification and accreditation processes
• Leads the efforts towards defining and maintaining processes, documentation, and engineering diagrams for technical and operational support
• Assists with network automation initiatives
• Mentors junior Infrastructure Engineers and cross-functional team of colleagues, fostering a culture of excellence and innovation
• Partners with 3rd party vendors and carriers to ensure quality delivery and adherence to standards

• 7+ years of experience in building and supporting Enterprise-scale data networks
• Expert level knowledge in routing protocols such as BGP and OSPF
• Expert level knowledge in routing, switching, and network technologies such as Spanning Tree, 802.1Q, Port-Channels, 802.1x, QoS, VLANs, and SVIs
• Expert level IP knowledge
• Strong knowledge of Cisco switching and routing platforms (Catalyst, Nexus, ASR)
• Strong knowledge of Arista switches
• SD-WAN technology and platforms
• IPSec VPN technology and platforms
• Public cloud environments such as AWS, GCP, and Azure
• Data center space provider offerings (Equinix Fabric, Megaport, etc.)
• Network automation and scripting
• Packet trace analysis
• Understanding of security infrastructure, including firewall concepts
• Ability to work under pressure and efficiently manage workload on multiple projects simultaneously
• Excellent communication skills, both oral and written, with ability to communicate to all levels of peers, customers, and leadership
• Ability to function effectively both individually and as part of a team

• Knowledge of F5 Application delivery controllers helpful

Licenses and Certifications:

• Cisco CCIE or CCNP preferred

Education Qualifications:

• Bachelors degree in Computer Science, Information Technology, Engineering, and/or comparable experience with enterprise networking technologies
• Employment eligibility to work with American Express in the United States is required as the company will not pursue visa sponsorship for these positions.