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Closed listing

American Express

Senior Agentic AI Engineer - Core Platforms

Sunrise, FL, United States

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

This opening has closed.

The original listing is kept below for reference.

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Job details

Pay: $123,000 to $215,250 USD / year
Experience: 5+ years' Experience in software development, including hands on experience in machine learning, AI Technologies, and Agentic solutions
Posting language: English
Posted: Oct 15, 2026

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Original job description

Archived listing. The details below describe a past opening.

Senior Agentic AI Engineer - Core Platforms

New York, NY, United States
Sunrise, FL, United States
Phoenix, AZ, 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 Evaluation Engineer designs, develops, and maintains evaluation frameworks for AI and machine learning solutions, including LLM, RAG, agentic, and multimodal applications. This role translates business, product, risk, and governance requirements into measurable success criteria; builds automated and human-in-the-loop evaluation pipelines; and partners with cross-functional teams to ensure AI systems meet enterprise standards for quality, safety, reliability, compliance, latency, and cost.

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
Provides guidance and support to junior engineers, fostering professional growth and development within the team
Designs and implements AI/machine learning frameworks for data processing, focusing on prompt engineering and generative AI technologies
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
Develops reusable Big Data pipelines and AI-based systems, ensuring efficiency and consistency in data processing and model deployment
Experiments with and deploys new natural language processing models to classify and analyze business-related text data, conducting research to improve text classification and analysis
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
Leads development of AI capabilities such as robust inference services, retrieval pipelines (e.g., RAG), orchestration layers, and evaluation frameworks
Ensures AI systems adhere to enterprise standards for reliability, safety, explainability, observability, and compliance, mentoring others on best practices
Defines evaluation strategies, success criteria, benchmarks, and scorecards for LLM, RAG, agentic, and multimodal AI solutions across quality, safety, reliability, latency, and cost.
Builds automated evaluation pipelines using curated datasets, synthetic test generation, human review, model-based grading, and deterministic checks; validates evaluators for consistency and bias.
Establishes regression testing, release gates, and continuous evaluation to detect quality degradation, prompt or model drift, unsafe behavior, and changes introduced by models, data, tools, or orchestration.
Partners with product, engineering, risk, and governance teams to convert use-case requirements and policy expectations into measurable acceptance criteria and traceable evidence.
Performs failure analysis and communicates actionable findings, tradeoffs, and remediation priorities to engineering and business stakeholders.

Qualifications

Education and Knowledge

5+ years' Experience in software development, including hands on experience in machine learning, AI Technologies, and Agentic solutions
Bachelor's degree in computer science, Machine Learning, Data Science, and/or comparable experience; advanced degree preferred
Knowledge of Python and data processing technologies such as Big Data (Hadoop, Spark)
Knowledge of natural language processing techniques like fuzzy wuzzy and models such as BERT, Transformer models, and their real-world applications
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

Work Experience

Experience in software development with a focus on machine learning, generative AI, Big Data, and prompt engineering
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 leanring 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 in building and maintaining data pipelines and extract, transform, and load processes
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
Experience building evaluation harnesses and automated test pipelines for LLM, RAG, or agentic applications using production-representative datasets.
Experience designing human-in-the-loop and model-based evaluation workflows, including calibration, error analysis, and validation of evaluation quality.
Experience integrating evaluation results into CI/CD, release readiness, production monitoring, and governance evidence.

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 26015092
Job Category Technology
Posting Date 10/14/2026, 07:38 PM
Apply Before 11/13/2026, 06:00 AM
Job Schedule Full time
Job Shift Day
Locations AMEX World Financial Center, New York, NY, 10285, USAMEX 18850 North 56th Street, Phoenix, AZ, 85054, US1500 NW 136th Avenue, Sunrise, FL, 33323, 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)

About employer

More about this job

Skills

Cybersecurity
Regulatory compliance
Collaboration
Machine learning
Process data
Natural language processing
Research
ML
Coaching
Software development
Computer science
Python
Apache Hadoop
Apache Spark
R
Oracle Java
C++
CI/CD
Customer service
Mental health
Counselling
Hybrid model

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Jobs in the United States