Find work in the United States.

6,304,574 jobs across our US network. How we count

Jobs in the United States

25+ jobs

Save this search

Added 1 min ago
AI Security Engineer, US ADC Security
Amazon.com Services LLC
Jessup, MD · Arlington, VA · Herndon, VA
Amazon's Security team is looking for an AI Security Engineer with strong insight and passion for security to ensure our AI applications are designed and built to the highest standards.…
Added 1 min ago
Amazon Dedicated Cloud Engineer, US ADC Security
Amazon.com Services LLC
Herndon, VA
The US ADC Security Engineering team is seeking a motivated ADC Engineer I to support day-to-day operations of large-scale cloud systems. You have a working knowledge of Linux, networking,…
Added 1 min ago
Amazon Dedicated Cloud Engineer, US ADC Security
Amazon.com Services LLC
Herndon, VA
The US ADC Security Engineering team is seeking a motivated ADC Engineer I to support day-to-day operations of large-scale cloud systems. You have a working knowledge of Linux, networking,…
Added 1 min ago
Amazon Dedicated Cloud Engineer, US ADC Security
Amazon.com Services LLC
Herndon, VA
The US ADC Security Engineering team is seeking a motivated ADC Engineer I to support day-to-day operations of large-scale cloud systems. You have a working knowledge of Linux, networking,…
Added 1 min ago
Amazon Dedicated Cloud Engineer, US ADC Security
Amazon.com Services LLC
Herndon, VA
…operating some of the largest and most complex distributed systems in the…
Added 1 min ago
G
Maintenance Engineer
GPAC
Mound, MN
- $34 to $41 USD / hour
A global leader in food processing technology is seeking a Maintenance Engineer to join its technical applications team.
Added 1 min ago
G
Maintenance Engineer
GPAC
Shakopee, MN
- $34 to $41 USD / hour
A global leader in food processing technology is seeking a Maintenance Engineer to join its technical applications team.
Added 4 mins ago
G
Supply Chain Development Engineer
GPAC
Saginaw, MI
- $70,000 to $90,000 USD / year
Local industry leader is seeking a Supply Chain Development Engineer to connect internal purchasing, engineering, and project management teams to external manufacturing network. In this…
Added 4 mins ago
G
Supply Chain Development Engineer
GPAC
Bridgeport, MI
- $70,000 to $90,000 USD / year
Local industry leader is seeking a Supply Chain Development Engineer to connect internal purchasing, engineering, and project management teams to external manufacturing network. In this…
Added 4 mins ago
Electrical Engineer
Cargill
Eddyville, IA
The Electrical Engineer helps to design, develop and maintain electrical control systems and/or components to required specifications, focusing on economy, safety, reliability, quality and…
Added 4 mins ago
Engineer - Manufacturing
Vermeer Corporation
Pella, IA
Initiate, review, and implement Engineering Change Notices (ECNs) using Product Lifecycle Management (PLM) systems such as 3DX, Teamcenter or Windchill.
Added 4 mins ago
G
Supply Chain Development Engineer
GPAC
Bridgeport, MI
- $70,000 to $90,000 USD / year
Local industry leader is seeking a Supply Chain Development Engineer to connect internal purchasing, engineering, and project management teams to external manufacturing network. In this…
Added 4 mins ago
G
Supply Chain Development Engineer
GPAC
Midland, MI
- $70,000 to $90,000 USD / year
Local industry leader is seeking a Supply Chain Development Engineer to connect internal purchasing, engineering, and project management teams to external manufacturing network. In this…
Added 4 mins ago
G
Supply Chain Development Engineer
GPAC
Freeland, MI
- $70,000 to $90,000 USD / year
Local industry leader is seeking a Supply Chain Development Engineer to connect internal purchasing, engineering, and project management teams to external manufacturing network. In this…
Added 4 mins ago
Data Engineer, Analytics (Technical Leadership)
Meta
Des Moines, IA
Data Engineer, Analytics (Technical Leadership) Responsibilities:
Added 4 mins ago
AT
Machine Learning Senior Software Engineer
Akamai Technologies, Inc.
Des Moines, IA
- $121,400 to $218,600 USD / year
As an ML Senior Software Engineer, you will build and operate systems responsible for model validation, quantization, and safety across the AIC. You'll develop pipelines that scan models…
Added 4 mins ago
Cloud Engineer
Maximus
Des Moines, IA
Maximus is seeking a Cloud Engineer to support a defense client remotely.
Added 4 mins ago
Software Engineer, Machine Learning RecSys
Meta
Des Moines, IA
Software Engineer, Machine Learning RecSys Responsibilities:
Added 4 mins ago
Senior Security GRC Engineer, AI & Automation
American Express Global Business Travel
Des Moines, IA
AmexGBT’s Security GRC team is looking for a talented Senior Security GRC Engineer to design, build, and scale automation and AI-driven solutions that modernize our governance, risk, and…
Added 4 mins ago
Systems Network Engineer - PERM FTE Position
Robert Half
Des Moines, IA
PERMANENT POSITION! SYSTEMS NETWORK ENGINEER (Direct Hire PERM)
Added 4 mins ago
Associate Software Engineer
Highmark Health
Des Moines, IA
This job is an integral member of an agile software engineer team responsible for building scalable software applications across all digital channels to serve our customers. Responsible for…
Added 4 mins ago
Senior Endpoint Engineer
CACI International
Des Moines, IA
CACI is seeking a Senior Endpoint Engineer to join our team on a contract supporting the Department of Homeland Security. As a Senior Endpoint Engineer, you will be part of a dynamic team…
Added 4 mins ago
AT
Senior Software Engineer
Akamai Technologies, Inc.
Des Moines, IA
- $121,400 to $218,600 USD / year
As a Software Engineer Senior, you will be responsible for:
Added 4 mins ago
Mechanical Engineer, Data Center Operations Engineering
Meta
Des Moines, IA
Meta is seeking a Mechanical Engineer to join our Data Center Operations Engineering team. Our data centers are the foundation upon which our rapidly growing infrastructure efficiently…
Added 5 mins ago
Supplier Support Manufacturing Engineer
GE Aerospace
Des Moines, IA
The Supplier Support Manufacturing Engineer is responsible for addressing part shortages and ensuring supplier performance aligns with Clear to Build (CTB) targets. This role emphasizes…

Mastercard

AI Engineer ||

O'Fallon, MO, United States

Apply About employer

Applications open in a new tab.

Job details

Posting language: English

Original job description

Summary

Our Purpose

_Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential._

Title and Summary

AI Engineer ||

Role Summary

The AI Engineer is responsible for designing and delivering AI-powered solutions that improve engineering productivity and business workflows. This role requires a strong foundation in AI/ML concepts, with hands-on expertise in LLM systems, data preparation, and context design (including chunking) to build scalable, high-quality AI solutions.

What You Will Do

Lead AI-Driven Solution Development

Identify and drive high-impact AI use cases across engineering and business workflows

Design end-to-end AI solutions leveraging LLMs, orchestration, and automation

Move rapidly from exploration to production-grade implementations

Build LLM Solutions & Intelligent Agents

Develop LLM-based applications including prompt frameworks, orchestration layers, and integrations

Create and evolve AI-powered agents (e.g., Copilot-based or similar) for workflow automation and decision support

Apply techniques such as retrieval-augmented approaches, context management, and prompt optimization

Design Data, Context & Chunking Strategies (Critical)

Structure and prepare data for LLM consumption, including effective chunking and context window optimization

Design retrieval strategies that improve relevance, accuracy, and response quality

Balance context size, latency, and cost while maintaining solution effectiveness

Apply Strong AI/ML Foundations

Understand and reason about model behavior, evaluation, bias, and limitations

Tune and adapt prompts, context, and workflows instead of relying on model retraining

Ensure responsible and effective use of AI through sound engineering practices

Drive Engineering Productivity with AI

Apply AI tools (e.g., Copilot and similar) to improve developer velocity and quality

Build reusable patterns for AI-assisted coding, testing, and documentation

Measure and scale productivity impact across teams

Data & Application Engineering

Build data pipelines and integrations to support AI workflows

Develop APIs, services, and applications embedding AI capabilities

Ensure solutions are scalable, maintainable, and integrated into real workflows

What You Bring

Strong foundation in AI/ML concepts, especially LLMs and modern AI systems

Hands-on experience with:

Prompt engineering and LLM orchestration frameworks

Context design, chunking strategies, and retrieval techniques

Working with structured and unstructured data for AI use cases

Solid software engineering and system design experience

Ability to build end-to-end AI solutions (data → context → LLM → application)

Pragmatic mindset focused on quality, usability, and business impact

Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.

Corporate Security Responsibility

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

+ Abide by Mastercard's security policies and practices;

+ Ensure the confidentiality and integrity of the information being accessed;

+ Report any suspected information security violation or breach, and

+ Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.

In line with Mastercard's total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.

THIS POSTING RELECTS ONE OR MORE CURRENT VACANCIES ON OUR TEAM, AND MASTERCARD INTENDS TO FILL THIS POSITION BY 02/02/2027. If the fill date has passed, Mastercard intends to fill this position as soon as possible.

Pay Ranges

O'Fallon, Missouri: $92,000 - $147,000 USD

Apply About employer

Report this job