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Added 1 min ago
Hardware Design Engineer Intern
Emerson
Round Rock, TX
…world’s most critical industrial processes? Emerson’s Process Systems and Solutions business develops automation products that power the energy and manufacturing industries. We are seeking…
Added 2 mins ago
Director, Full Stack Engineer
Capital One
Plano, TX
As a Director, Full-stack Engineer at Capital One, you will lead high-performing engineering teams working to define the future of banking in the cloud. You will partner closely with…
Added 2 mins ago
Analytical Engineer
USAA
Plano, TX
Added 2 mins ago
Lead Software Engineer - Big Data(Data Engineer), Python, and AWS
JPMorgan Chase
Plano, TX
As a Lead Software Engineer at JPMorganChase within the CIB, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology data…
Added 3 mins ago
Controls Engineer, Data Center Engineering
Apple
Dallas, TX
…experience? We are actively seeking a Data Center Controls Engineer who will thrive among a team of thinkers and doers, designing and deploying the integrated control systems that keep…
Added 3 mins ago
Staff Databricks Platform Engineer
Southern Glazer's Wine and Spirits
Dallas, TX
The Staff Databricks Platform Engineer owns the engineering of Southern Glazer's Databricks lakehouse as a product: the workspaces, governance model, compute fabric, and automation that…
Added 3 mins ago
AI Engineer
Humana
Dallas, TX
We are seeking an AI Engineer who will contribute to Generative AI initiatives at Humana, leveraging state-of-the-art LLMs to build applications. Our goal is to create safe AI solutions…
Added 3 mins ago
Senior Machine Learning Engineer
Robert Half
Houston, TX
As our portfolio of AI-driven solutions continues to expand, we’re looking for an experienced Machine Learning Engineer to join our high-impact data science team. This role offers the…
Added 4 mins ago
Head of Forward Deployed Engineering
Bausch + Lomb
Austin, TX
Bausch + Lomb is seeking a Head of Forward Deployed Engineer (FDE) to turn AI from pilots into production capability across B+L. This is a hands-on builder role embedded in manufacturing,…
Added 4 mins ago
AT
Machine Learning Senior Software Engineer
Akamai Technologies, Inc.
Austin, TX
- $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
Staff Software Engineer for NextGen In-Vehicle Infotainment Systems - DevOps
General Motors
Austin, TX
…scale few companies can match and we need a Staff Software Engineer ready to accelerate that mission. You'll make software delivery faster, smarter, and more reliable, shaping how GM…
Added 4 mins ago
Senior Data Technology Consultant, Databricks Data & AI Practice
EPAM Systems
Austin, TX
Must have: Databricks certifications (e.g., Data Engineer Professional, Machine Learning Professional, or Generative AI Engineer) and experience with Databricks partner programs
Added 6 mins ago
Senior Engineer-AI & Full Stack Engineering Lead
Bank of America, National Association
United States
Build and maintain backend systems using Java and Python
Added 14 mins ago
Research Engineer 6 - TL, Messaging Algorithms
Netflix
Los Gatos
…pacing of notifications to Netflix members. We build the ML systems that decide which messages to send, to whom, when, how often, and via which channel. The team partners closely with the…
Added 19 mins ago
ECAD Application Engineer, Design Technologies
Amazon.com Services LLC
Sunnyvale, CA · Redmond, WA
Amazon Lab126 is an inventive research and development company that designs and engineer’s high-profile consumer electronics. Lab126 began in 2004 as a subsidiary of Amazon.com, Inc.,…
Added 20 mins ago
Staff Cloud Engineer, ML Ops
Modernizing Medicine, Inc.
Boca Raton, FL
As a Staff MLOps Engineer at Modernizing Medicine, you’ll help bridge the gap between data science, machine learning engineering, and production systems. You’ll lead efforts to establish…
Added 29 mins ago
I
Senior Machine Learning Engineer, Agentic Evals and Self-Improvement (Nova)
Iterable
Remote, United States
- $150,000 to $250,000 USD / year
As a Senior Machine Learning Engineer on Nova, you'll lead evaluation and automatic optimization for Nova's models and agents. That means measuring how they perform, finding where they…
Added 29 mins ago
I
Senior Machine Learning Engineer, Nova Intelligence
Iterable
Remote, United States
- $150,000 to $250,000 USD / year
As a Senior Machine Learning Engineer at Iterable, you will design and build the end-to-end machine learning systems that power intelligence across our product. As a high-tech marketing…
Added 41 mins ago
Principal Software Engineer (Remote)
8th Light
United States
Taken AI and agentic systems from prototype to production, with a strong understanding of infrastructure, authentication, and observability
Added 41 mins ago
Lead Software Engineer (Remote)
8th Light
United States
Experience building or integrating AI/ML-powered features into products or systems (e.g., recommendation engines, NLP models, computer vision, predictive analytics)
Added 49 mins ago
RGM Product Manager
The Coca-Cola Company
Atlanta, GA
…data, and the evaluation of non-deterministic and deterministic systems, and none of it is a research exercise. What we build ships to commercial teams who use it to make decisions the same…
Added 52 mins ago
SM
Software & Business Intelligence Engineer
Santa Monica Seafood Company
Los Angeles, CA, CA
- $150,000 to $175,000 USD / year
Santa Monica Seafood is seeking a seasoned Software and Business Intelligence Engineer with a strong blend of software development/engineering, report writing, and business analysis…
Added 53 mins ago
Marketing Engineer (AI Agents)
Cresta
Remote, United States
As Cresta’s first Marketing Engineer (AI Agents), you'll own the systems behind how Cresta shows up on the internet. In this role, you will own the technical decisions behind cresta.com and…
Added 53 mins ago
AI Growth Engineer
Cresta
Remote, United States
As Cresta’s first AI Growth Engineer, you'll own the systems behind how Cresta shows up on the internet. In this role, you will own the technical decisions behind cresta.com and help shape…
Added 55 mins ago
Principal Application Engineer- Missile Defense
Synopsys
USA Off-Site, CO
Synopsys is the leader in engineering solutions from silicon to systems, enabling customers to rapidly innovate AI-powered products. We deliver industry-leading silicon design, IP,…

Closed listing

US: Mastercard Technologies, LLC

AI Engineer ||

O'Fallon, MO, United States

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

This opening has closed.

The original listing is kept below for reference.

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Job details

Pay: Pay Ranges O'Fallon, Missouri: $92,000 - $147,000 USD
Posting language: English
Posted: Nov 4, 2026

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Original job description

Archived listing. The details below describe a past opening.

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

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