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American Express

Sr Agentic AI Engineer - Core Platforms

New York, NY, United States

$123,000 to $215,250 USD / year

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Job details

Pay: $123,000 to $215,250 USD / year
Experience: 5+ years software development experience, including hands-on experience in machine learning, AI technologies, and Agentic AI solutions.
Posting language: English
Posted: Oct 19, 2026

Original job description

Sr Agentic AI Engineer - Core Platforms

New York, NY, United States
Phoenix, AZ, United States
Sunrise, FL, United States

(Hybrid)

Job Description

The Enterprise Technology Services organization partners with every part of the American Express business to power the company’s growth and innovation with trust and efficiency, and drive competitive differentiation with speed. We support the delivery and operations of technology, digital, and data capabilities, platforms, and services globally. Specifically, our team is responsible for the company’s technology engineering, architecture, and infrastructure, providing 24x7 support to ensure an uninterrupted, high-quality experience for customers and colleagues. We also provide product management for core enterprise platforms, and lead technology risk and information security, enterprise data governance and platforms, digital product and design, and enterprise AI platforms on behalf of the company.

The Inference Engineer is responsible for independently designing, optimizing, and operating scalable production inference services that enable enterprise AI and machine learning solutions. This role partners with stakeholders to translate business and technical requirements into reliable model-serving capabilities, build efficient integration patterns and data pipelines, and ensure solutions meet established enterprise architecture standards for performance, reliability, observability, compliance, and production readiness.

Responsibilities

Mentors junior AI Engineers and cross-functional team of colleagues, fostering a culture of excellence and innovation
Integrates AI models into production systems in collaboration with cross-functional teams, ensuring effective integration into existing production systems
Maintains strict adherence to model governance, security, and compliance standards
Collaborates with engineers to deliver scalable AI solutions by integrating models that meet both technical and business requirements
Translates business requirements into AI-driven technical solutions, ensuring that business needs are converted into actionable models and algorithms
Creates end-to-end machine learning operations pipelines for scalable model deployment, facilitating seamless deployment, monitoring, and maintenance of AI models
Collaborates and co-creates effectively with teams in product and the business to align technology initiatives with business objectives
Designs and operates scalable production AI systems, integrating ML models, LLMs, and intelligent services across multiple components
Ensures AI systems adhere to enterprise standards for reliability, safety, explainability, observability, and compliance, mentoring others on best practices
Designs and operates scalable inference services, including performance, reliability, observability, and production readiness.
Evaluates serving approaches and optimizes latency, throughput, accelerator utilization, and cost for assigned workloads.
Partners across platform, infrastructure, security, evaluation, and application teams and mentors less-experienced engineers.

Qualifications

Education and Knowledge

Bachelor's degree in Computer Science, Machine Learning, Data Science, and/or comparable experience; advanced degree preferred
Advanced knowledge of machine learning techniques and performance optimization
Strong understanding of AI system architectures including LLM ecosystems, retrieval systems, orchestration frameworks, and evaluation methodologies
Strong knowledge of production model serving, inference optimization, GPU fundamentals, Kubernetes, APIs, and distributed systems.
Ability to evaluate technical alternatives and make sound service-level design decisions within established architecture.

Work Experience

5+ years software development experience, including hands-on experience in machine learning, AI technologies, and Agentic AI solutions.
Experience in working with large language models (LLMs), especially GPT-3.5/4 or similar AI models
Experience in languages such as Python, R, Java, or C++ Experience in deploying AI models and pipelines using machine learning operations tools
Experience in machine learning algorithms and experience applying them to real-world problems
Experience in continuous integration/continuous deployment pipelines and containerized deployments
Experience delivering end-to-end AI systems in production, including design and operational ownership
Experience with distributed systems design, scalable APIs, and cloud-native AI infrastructure, including monitoring and optimization
Advanced expertise in a technical domain and moderate expertise in a new, different technical domain
Demonstrated experience independently building and operating production inference services.
Experience with model-serving frameworks, containerized GPU workloads, and performance or reliability optimization.

Employment eligibility to work with American Express in the United States is required as the company will not pursue visa sponsorship for these positions.

At American Express, our culture is built on a 175-year history of innovation, shared values (https://www.americanexpress.com/en-us/company/who-we-are/) 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 (https://www.americanexpress.com/en-us/colleagues/benefits) .

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.

US Job Seekers - Click to view the “Know Your Rights (https://www.eeoc.gov/poster) ” poster. If the link does not work, you may access the poster by copying and pasting the following URL in a new browser window: https://www.eeoc.gov/poster.

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 26015090
Job Category Technology
Posting Date 10/19/2026, 04:12 PM
Apply Before 11/06/2026, 06:00 AM
Job Schedule Full time
Job Shift Day
Locations AMEX World Financial Center, New York, NY, 10285, US1500 NW 136th Avenue, Sunrise, FL, 33323, USAMEX 18850 North 56th Street, Phoenix, AZ, 85054, US(Hybrid)
Salary Range $123000 - $215250 annually + bonus + benefits
Career Area Technology

Return to Jobs List (https://careers.americanexpress.com/en/sites/CX_1/jobs)

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More about this job

Skills

Cybersecurity
Machine learning
Architecture regulations
Regulatory compliance
Collaboration
ML
Coaching
Computer science
Kubernetes
Software development
Python
R
Oracle Java
C++
CI/CD
Customer service
Mental health
Counselling
Hybrid model

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