Sr Agentic AI Engineer - Core Platforms

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.
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
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
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.
Bachelors degree in Computer Science, Machine Learning, Data Science, and/or comparable experience; 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.
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
~ Demonstrated experience independently building and operating production inference services.
~ Experience with model-serving frameworks, containerized GPU workloads, and performance or reliability optimization.

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

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:

~ 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
~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. Thats 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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