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 looking for a skilled Python Software Engineer with at least 5 years of experience, specializing in business applications of Artificial Intelligence (AI) and Machine Learning (ML). The ideal candidate will design, develop, and deploy applied systems built upon AI and traditional technologies. The focus of the role is on rapid prototyping and designing scalable enterprise solutions with emerging technologies. This requires a strong background in Python, LangChain/Langraph, CI/CD solutions, web applications, and server design in an enterprise environment.

Key Responsibilities

Build and orchestrate LLM applications with LangChain & Langraph.
Design prompts, chains, and agents; optimize for performance.
Implement model validation, monitoring, and guardrails for safety & compliance.
Develop APIs and web services with FastAPI/Flask/Django.
Optimize performance (async, concurrency, parallelism, resource usage).
Deploy scalable AI systems with Docker/Kubernetes and CI/CD pipelines.

Requirements

5+ years professional experience with Python.
Proven expertise with LangChain & Langraph.
Strong in prompt engineering and LLM orchestration.
Backend development experience (FastAPI/Flask/Django).
Familiar with concurrency, async, and performance tuning.
Experience deploying enterprise-grade AI services (APIs, microservices, cloud).

Nice to Have

Knowledge of LLMOps workflows and monitoring.
Familiarity with caching (Redis, Memcached).
Exposure to modern frontends (React, Vue).
Awareness of AI safety frameworks.

Salary Range: $89,250.00 to $150,250.00 annually + bonus + benefits

The above 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.

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

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