Senior Infrastructure Engineer I

American Express; London; Hybrid; GBP 60,000 - 100,000; Full time

Job summary

Join a forward-thinking company as a Full Stack Infrastructure Engineer, where your expertise in cloud technologies and infrastructure management will play a crucial role in ensuring the reliability and performance of complex systems. Collaborate with diverse teams to design and implement innovative solutions that drive operational excellence. Enjoy a flexible working model and a comprehensive benefits package that prioritizes your well-being and career growth. This is an exciting opportunity to make a significant impact in a dynamic environment that values your voice and ideas.

Benefits

Competitive base salaries

Bonus incentives

Comprehensive medical benefits

Flexible working model

Generous paid parental leave

Career development opportunities

Access to wellness centers

Counseling support

Retirement support

Qualifications

• Proven experience managing and optimizing a diverse infrastructure stack.
• Extensive knowledge of cloud platforms and infrastructure as code.
• Strong understanding of network protocols and security best practices.

Responsibilities

• Ensure reliability and performance of the entire infrastructure stack.
• Lead incident response efforts and perform root cause analysis.
• Develop automation tools for managing infrastructure resources.

Skills

Cloud Platforms (AWS, Azure, GCP)

Infrastructure as Code (Terraform, CloudFormation)

Network Protocols

Containerization (Docker, Kubernetes)

Scripting (Python, Bash)

Monitoring Tools (Prometheus, Grafana)

Disaster Recovery Planning

Performance Tuning

Network Security Best Practices

CI/CD Pipeline Management

Tools

Wireshark

F5

HAProxy

Nginx

CloudWatch

Azure Monitor

Google Cloud Operations Suite

Job description

At American Express, our culture is built on a 175-year history of innovation, shared values and leadership behaviors, and an unwavering commitment to back our customers, communities, and colleagues.As part of Team Amex, you’ll experience this powerful backing with comprehensive support for your holistic well-being and many opportunities to learn new skills, develop as a leader, and grow your career.

Here, your voice and ideas matter, your work makes an impact, and together, you will help us define the future of American Express.

We are seeking a versatile and highly skilled Full Stack Infrastructure Engineer with expertise in Compute, Storage, Network and Cloud technologies. The ideal candidate will design, implement, and manage robust infrastructure solutions, ensuring reliability, scalability, and performance.

How will you make an impact in this role?

• Ensure the reliability, availability, and performance of the entire infrastructure stack including compute, storage, network and cloud components.
• Lead incident response efforts across the infrastructure stack, coordinating with Application Support, SRE, and Engineering teams to minimize MTTD and MTTR.
• Perform root cause analysis for infrastructure related incidents and implement corrective actions.
• Develop and maintain automation tools for managing infrastructure resources.
• Collaborate with Engineering teams to plan and execute system upgrades and maintenance.
• Conduct capacity planning and resource management for all infrastructure components.
• Participate in on-call rotations to provide 24x7 support for all critical infrastructure issues.
• Design and implement disaster recovery plans and business continuity strategies.
• Implement best practices for monitoring, logging, and alerting across the infrastructure.
• Foster a culture of continuous improvement and operational excellence.
• Analyze complex infrastructure problems, design scalable and resilient solutions, and lead the implementation of these solutions.
• Collaborate with architects and other engineers to design and enhance the architecture of infrastructure systems, ensuring alignment with business needs and technology standards.

Minimum qualifications

• Proven experience managing and optimizing a diverse infrastructure stack.
• Extensive knowledge of cloud platforms (AWS, Azure, GCP) and infrastructure as code (Terraform, CloudFormation).
• Familiarity of service mesh technologies (Istio, Linkerd).
• Solid understanding of virtualization (VMware, Hyper-V) and containerization (Docker, Kubernetes) and orchestration.
• Understanding of storage solutions (SAN, NAS, cloud storage) and backup systems.
• Strong understanding of network protocols, routing, switching, and firewalls.
• Experience with load balancers (F5, HAProxy, Nginx) and network monitoring tools.
• Experience in DNS management and troubleshooting.
• Experience in network security best practices.
• Proficiency in monitoring and observability tools (Prometheus, Grafana, Splunk).
• Proficiency in at least one scripting language (Python, Bash) for automation.
• Experience with CI/CD pipeline management and DevOps practices.
• Strong understanding of disaster recovery and business continuity planning.
• Experience with performance tuning and capacity planning.
• Understanding of chaos engineering principles and practices.
• Skills in cost optimization for cloud infrastructure.

Preferred qualifications

• Experience in using cloud native monitoring tools like AWS CloudWatch, Azure Monitor, and Google Cloud Operations Suite.
• Experience with packet capture tools like Wireshark for troubleshooting network issues.
• Experience in using traceroute utilities and performance analysis tools like perf for identifying and resolving bottlenecks.
• Familiarity with tools such as ipconfig/ifconfig for viewing network configurations, flushing DNS, and diagnosing network issues.
• Experience with SNMP-based tools for network device monitoring and performance management.
• Experience in using NetFlow for network traffic analysis.
• Experience with tools like iostat, vmstat, and dstat for monitoring storage and system performance.
• Experience in tools like df, du, lsblk, and fdisk for managing and troubleshooting file systems and disk partitions.
• Familiarity with tools like Prometheus and Grafana for monitoring and observability.

We back our colleagues and their loved ones with benefits and programs that support their holistic well-being. That means we prioritize their physical, financial, and mental health through each stage of life. Benefits include:

• Competitive base salaries
• Bonus incentives
• Support for financial-well-being and retirement
• Comprehensive medical, dental, vision, life insurance, and disability benefits (depending on location)
• Flexible working model with hybrid, onsite or virtual arrangements depending on role and business need
• Generous paid parental leave policies (depending on your location)
• Free access to global on-site wellness centers staffed with nurses and doctors (depending on location)
• Free and confidential counseling support through our Healthy Minds program
• Career development and training opportunities

Offer of employment with American Express is conditioned upon the successful completion of a background verification check, subject to applicable laws and regulations.