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MORTON INDUSTRIES
Morton, IL
- $80,000 to $120,000 USD / year
The Manufacturing Engineer develops, integrates, and improves the methods, tooling, fixtures, and equipment used in production. Working closely with Operations, Quality, Tooling and Design,…
Added 2 mins ago
Project Engineer 1
J.E. Dunn Construction Group Inc P
Denver, CO
The Project Engineer will complete and support construction and field execution responsibilities for construction projects utilizing construction fundamentals and company best practice…
Added 2 mins ago
Building Engineer
Union Bank & Trust
Lincoln, NE
Position Summary: The Facilities Building Engineer inspects building systems including fire alarms, HVAC, and plumbing to ensure operation of equipment is within design capabilities and…
Added 2 mins ago
Electrical Engineer Intern - Summer 2027
Clean Harbors
Fallon, NV
Safety-Kleen Systems, a Clean Harbors company in Fallon, NV, is seeking a Electrical Engineer Intern to join our safety-focused team. This internship provides students with the opportunity…
Added 2 mins ago
Mechanical Engineer Intern - Summer 2027
Clean Harbors
Wichita, KS
Safety-Kleen Systems Wichita is seeking a Mechanical Engineer Intern to join our safety-focused team. This internship provides students with the opportunity to gain hands-on experience…
Added 2 mins ago
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Principal Application Software Engineer
Oracle
United States
- $99,600 to $209,500 USD / year
…development. This individual will collaborate closely with product, engineering, and platform teams to deliver high-quality solutions that meet business and customer…
Added 2 mins ago
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Principal Core Infrastructure Engineer
Oracle
Nashville, TN
- $114,600 to $234,600 USD / year
Join Oracle Cloud Infrastructure (OCI) as a Principal Core Infrastructure Engineer and play a pivotal role in shaping the future of cloud computing. In this role, you will lead the design,…
Added 2 mins ago
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Principal Software Engineer, Core Infrastructure
Oracle
Reston, VA
- $114,600 to $234,600 USD / year
As Oracle Cloud Infrastructure (OCI) continues its rapid expansion, we are seeking a skilled Software Engineer to join our newly established Cloud Performance Organization. This team plays…
Added 2 mins ago
Process Safety Engineer
Arclin
Alpharetta, GA
Arclin is seeking a skilled and proactive Process Safety Engineer to join our team. The successful candidate will be responsible for ensuring the safety and reliability of our chemical…
Added 3 mins ago
Lead Engineer, IT Compliance, Data Integrity
JuN - Seattle Dexter
Bothell, WA
The Lead Engineer, IT Compliance, Data Integrity is an individual contributor within the Cell Therapy Information Technology organization supporting Bristol Myers Squibb's Bothell, WA…
Added 4 mins ago
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Sr. Software Engineer - DevEx
VGS
Remote, United States
- $150,000 to $200,000 USD / year
…and agentic commerce. We store more than 9 billion tokens and process more than 10 billion monthly interactions, touching a third of all e-commerce. That scale isn't incidental. It's why…
Added 4 mins ago
Field Engineer
PBSGC Marine Group
Baton Rouge, LA
PBSGC is seeking an experienced Field Engineer that is willing to work in the Louisiana area and surrounding states as assigned.
Added 4 mins ago
IT Software Engineer 4
3Core Systems, Inc
Chicago Heights, IL
promote a culture of experimentation, learning, engineering excellence,
Added 5 mins ago
Sr. Solution Sales Executive - Data & Analytics - Insurance (FINS) - CHI
ServiceNow
Remote, United States
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 5 mins ago
Early Career Structural Engineer (Buildings)
WSP
New York, NY · NY
WSP is currently initiating a search for a Full-Time Early Career Structural Engineer for our New York, NY office. Be involved in projects with our Property & Buildings Team and be a part…
Added 5 mins ago
AP
AV Technician III
Astreya Partners, LLC
San Francisco, CA
- $23.49 to $37.1 USD / hour
- Coordinate with AV engineering, network, facilities, and vendors when
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Territory Sales Manager - Northern MI
Victaulic Company
Remote, United States
…pipe joining solutions, delivering advanced technologies and engineering services to address complex piping challenges faced by engineers, site owners and contractors. Since 1919, our…
Added 5 mins ago
Test Engineer (DEA)
Expression
Arlington, VA
The Test Engineer will design, develop, and execute comprehensive functional testing for Pega applications and related system capabilities. This position will work across engineering,…
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Junior Test Engineer (DEA)
Expression
Arlington, VA
Expression is seeking a Junior Test Engineer to support the Drug Enforcement Administration (DEA) Investigative Case and Data Ecosystem (ICDE) modernization effort. The program is focused…
Added 6 mins ago
Senior Quality Engineer
Leonardo DRS, Inc.
Danbury, CT
…navies around the world. We’re looking for a Senior Quality Engineer in Danbury who can turn demanding requirements into practical quality plans, help teams solve problems at their source,…
Added 6 mins ago
Manufacturing Engineer Sr
Hayward Industries, Inc.
North Kingstown, RI
5-8 years’ Manufacturing or Process Engineering experience required.
Added 6 mins ago
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Quality Engineer - 2nd Shift
GTI Fabrication
Goodyear, AZ
- $85,000 to $110,000 USD / year
…delivering a true turn-key product to our customers. Our scope spans Engineering, prototype builds, through full production, requiring teams that can move fast, adapt, and execute with…
Added 6 mins ago
GF
Quality Engineer - 1st Shift
GTI Fabrication
Goodyear, AZ
- $85,000 to $110,000 USD / year
…delivering a true turn-key product to our customers. Our scope spans Engineering, prototype builds, through full production, requiring teams that can move fast, adapt, and execute with…
Added 6 mins ago
Engineer- Controls II USA (Crew C)
First Solar (US)
New Iberia, LA
Minimum 6 years of manufacturing equipment controls engineering experience.
Added 6 mins ago
Quality Engineer
Performance Seats
Spartanburg, SC
raising quality issues and for speedily resolving them to ensure zero impact to the customer. Work closely with Engineering on new product introductions to ensure the robustness of product…

US: Mastercard Technologies, LLC

AI Engineer ||

O'Fallon, MO, United States

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

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Job details

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

Original job description

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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