Infrastructure Engineer III

Infrastructure Engineer III

Phoenix, AZ, United States(Hybrid)

Job Description

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 company’s growth strategies, delivering global capabilities and services in support of Amex’s 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.

Responsibilities

• Administer, configure, upgrade, and optimize Splunk, Grafana, and Dynatrace platforms, ensuring high availability, security, scalability, and performance.

• Manage end-to-end observability solutions, including log aggregation (Splunk), metrics and visualization (Grafana), and application performance monitoring (Dynatrace).

• Design, implement, and maintain monitoring, alerting, and dashboarding standards across infrastructure, applications, and cloud platforms.

• Perform platform upgrades, patching, and lifecycle management with minimal downtime and adherence to enterprise change management processes.

• Integrate Splunk, Grafana, and Dynatrace with cloud services (AWS, Azure, GCP), container platforms (Kubernetes, OpenShift), and CI/CD pipelines.

• Configure and manage data ingestion pipelines, indexes, retention policies, parsing rules, and performance tuning for large-scale log and metric volumes.

• Implement Dynatrace OneAgent deployments, SmartScape topology mapping, service flow monitoring, and root cause analysis (Davis AI).

• Develop and maintain Grafana dashboards using Prometheus, Loki, InfluxDB, and other supported data sources.

• Enforce security, access controls, and compliance requirements (SSO/SAML, RBAC, audit logging, data masking, retention policies).

• Automate operational tasks using scripting and APIs (Python, Shell, REST APIs, Terraform, Ansible).

• Troubleshoot platform issues, performance bottlenecks, ingestion delays, alert noise, and data gaps across observability tools.

• Collaborate with application, infrastructure, and SRE teams to improve monitoring coverage, incident response, and operational resilience.

• Document platform standards, best practices, and provide guidance or training to engineering and operations team.

Qualifications

• Overall 5+ years of IT experience, with 3+ years of hands-on experience administering Splunk, Grafana, and/or Dynatrace in large-scale enterprise environments.

• Strong expertise in observability concepts, including logs, metrics, traces, APM, infrastructure monitoring, and synthetic monitoring.

• Proven experience with Splunk indexers, forwarders, search heads, clustering, and performance optimization.

• Hands-on experience with Grafana dashboard development and data sources such as Prometheus, Loki, Elasticsearch, and cloud-native monitoring tools.

• Strong Dynatrace experience, including OneAgent deployment, service monitoring, custom metrics, and AI-driven root cause analysis.

• Experience integrating observability platforms with cloud infrastructure, Kubernetes, and microservices-based architectures.

• Proficiency in scripting, automation, and API integrations (Python, Shell, REST APIs, Terraform, Ansible).

• Knowledge of security, compliance, and governance practices in monitoring platforms (SOC2, ISO, NIST, audit requirements).

• Relevant certifications (Splunk Certified Admin/Architect, Dynatrace Associate/Professional, Grafana certifications) preferred.

• Strong communication skills with the ability to collaborate across engineering, SRE, and leadership teams.

Depending on factors such as business unit requirements, the nature of the position, cost and applicable laws, American Express may provide visa sponsorship for certain positions

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. From delivering differentiated products to providing world-class customer service, we operate with a strong risk mindset, ensuring we continue to uphold our brand promise of trust, security, and service.

As part of Team Amex, you’ll experience our 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 back you with benefits that support your holistic well-being so you can be and deliver your best. This means caring for you and your loved ones' physical, financial, and mental health, as well as providing the flexibility you need to thrive personally and professionally:

• Competitive base salaries

• Bonus incentives

• 6% Company Match on retirement savings plan

• Free financial coaching and financial well-being support

• Comprehensive medical, dental, vision, life insurance, and disability benefits

• Flexible working model with hybrid, onsite or virtual arrangements depending on role and business need

• 20+ weeks paid parental leave for all parents, regardless of gender, offered for pregnancy, adoption or surrogacy

• 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

For a full list of Team Amex benefits, visit our Colleague Benefits Site ( .

American Express is an equal opportunity employer and makes employment decisions without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran status, disability status, age, or any other status protected by law. American Express will consider for employment all qualified applicants, including those with arrest or conviction records, in accordance with the requirements of applicable state and local laws, including the California Fair Chance Act, the Los Angeles County Fair Chance Ordinance for Employers, and the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance. For positions covered by federal and/or state banking regulations, American Express will comply with such regulations as it relates to the consideration of applicants with criminal convictions.

We back our colleagues with the support they need to thrive, professionally and personally. That's why we have Amex Flex, our enterprise working model that provides greater flexibility to colleagues while ensuring we preserve the important aspects of our unique in-person culture. Depending on role and business needs, colleagues will either work onsite, in a hybrid model (combination of in-office and virtual days) or fully virtually.

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The below represents the expected salary range for this job requisition. Ultimately, in determining your pay, we’ll consider your location, experience, and other job-related factors.​

Job Info

• Job Identification 26011320

• Job Category Technology

• Posting Date 08/21/2026, 01:00 AM

• Degree Level Bachelor's Degree

• Job Schedule Full time

• Locations AMEX 18850 North 56th Street, Phoenix, AZ, 85054, US(Hybrid)

• Salary Range $103750 - $174750 annually + bonus + benefits

• Career Area Technology

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