Jobs in the United States

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Added 1 min ago
D
Senior Cybersecurity Specialist - GA - On site
Distro
Duluth, GA
- $110,000 to $140,000 USD / year
…(e.g., SIEM, IDS/IPS, firewalls) as a tool administrator or engineer strongly desired. Analytical Skills: Excellent problem-solving and analytical skills with the ability to assess and…
Added 1 min ago
Product Engineer | Audio AC
Texas Instruments
Dallas, TX
…meeting specifications and quality targets as defined in our data…
Added 2 mins ago
G
Senior Mechanical Engineer, PE
GPAC
Houston, TX
- $135,000 to $155,000 USD / year
An established MEP consulting engineering firm in Houston is adding a Senior Mechanical Engineer to its building systems team. You'll lead HVAC and plumbing design on data center,…
Added 2 mins ago
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Senior Mechanical Engineer, PE
GPAC
Frisco, TX
- $135,000 to $155,000 USD / year
An established MEP consulting engineering firm in Frisco is adding a Senior Mechanical Engineer to its building systems team. You'll lead HVAC and plumbing design on data center,…
Added 2 mins ago
G
Senior Mechanical Engineer, PE
GPAC
Fort Worth, TX
- $135,000 to $155,000 USD / year
An established MEP consulting engineering firm in Fort Worth is adding a Senior Mechanical Engineer to its building systems team. You'll lead HVAC and plumbing design on data center,…
Added 2 mins ago
G
Senior Mechanical Engineer, PE
GPAC
Columbus, OH
- $135,000 to $155,000 USD / year
An established MEP consulting engineering firm in Columbus is adding a Senior Mechanical Engineer to its building systems team. You'll lead HVAC and plumbing design on data center,…
Added 2 mins ago
G
Senior Mechanical Engineer, PE
GPAC
San Antonio, TX
- $135,000 to $155,000 USD / year
An established MEP consulting engineering firm in San Antonio is adding a Senior Mechanical Engineer to its building systems team. You'll lead HVAC and plumbing design on data center,…
Added 2 mins ago
G
Senior Mechanical Engineer, PE
GPAC
Plano, TX
- $135,000 to $155,000 USD / year
An established MEP consulting engineering firm in Plano is adding a Senior Mechanical Engineer to its building systems team. You'll lead HVAC and plumbing design on data center,…
Added 2 mins ago
G
Senior Mechanical Engineer, PE
GPAC
Dallas, TX
- $135,000 to $155,000 USD / year
An established MEP consulting engineering firm in Dallas is adding a Senior Mechanical Engineer to its building systems team. You'll lead HVAC and plumbing design on data center,…
Added 2 mins ago
G
Senior Mechanical Engineer, PE
GPAC
Austin, TX
- $135,000 to $155,000 USD / year
An established MEP consulting engineering firm in Austin is adding a Senior Mechanical Engineer to its building systems team. You'll lead HVAC and plumbing design on data center,…
Added 3 mins ago
Senior Electrical Engineer (Generation)
WSP
Meridian, ID · Seattle, WA · Houston, TX · Mount Laurel, NJ · Oradell, NJ · Atlanta, GA · Overland Park, KS · Tulsa, OK · Phoenix, AZ · Boise, ID · Hailey, ID
WSP is currently initiating a search for a Senior Electrical Engineer (Generation) to join our Power & Energy team. This is a nationwide search and any WSP office will be considered, with…
Added 3 mins ago
CO
CIP PROJECT MANAGER
City of Santa Monica
Santa Monica, CA
- $62.61 to $77.29 USD / hour
…improvement project areas, including research and analysis of complex data and preparation and presentation of comprehensive design studies, operational reports and other informational…
Added 4 mins ago
Quality Engineer
HSM Careers
Hickory, NC
As a Quality Engineer, you will combine technical knowledge, data analysis, and practical problem-solving to improve product and process quality.
Added 4 mins ago
IG
LOTO Coordinator | Charlotte, NC (Uptown)
Insight Global
Charlotte, NC
- From $70 USD / hour
10+ years of experience supporting mission-critical, data center, industrial, semiconductor, or other complex critical infrastructure projects.
Added 4 mins ago
Full Stack Engineer
Pogo Technologies, Inc.
Remote, United States
- Work cross-functionally. Partner with product, design, ops, GTM, data, and CS
Added 6 mins ago
TA
Space Security EW/RF Operational Engineer
The Aerospace Corpor
Colorado Springs, CO
- $117,300 to $226,900 USD / year
…space enterprise? Join us as a Space Security EW/RF Operational Engineer on the Space Planning, Readiness, and Operations Department team at The Aerospace…
Added 6 mins ago
GP
Senior Full-Stack Software Engineer (Java, Angular)
Global Payment Holdi
Denver, CO
- $40,123 USD / year
Make your mark at one of the biggest names in payments. We're looking for a Senior Full-Stack Software Engineer (Java, Angular) to join our ever-evolving software engineering team and help…
Added 6 mins ago
TA
Senior Cyber Mission Engineer
The Aerospace Corpor
Aurora, CO
- $166,400 to $249,600 USD / year
…ISCD blends expertise in software architecture, AI/ML systems, data fabric/architecture, advanced cloud and edge platforms, cybersecurity, and full-stack engineering through…
Added 6 mins ago
TA
Space Vehicle and Electronic Component Structural Engineer
The Aerospace Corpor
Colorado Springs, CO
- $117,300 to $226,900 USD / year
The Vehicle Systems Division (VSD) sits at the center of the ideas and data behind current and future space systems supplying innovative research and development; technical evaluations…
Added 6 mins ago
JL
M&E Operating Engineer
Jones Lang LaSalle
Broomfield, CO
- $92,000 to $96,000 USD / year
…operations and conducts a routine and on-going operations of the Data Center infrastructure. Performs tests, rounds and analyzes data to ensure the proper functioning of departmental…
Added 8 mins ago
FC
Cost Engineer
Flatiron Construction Corp
Havre De Grace, MD
- $100,000 USD / year
Are you driven by data and can turn numbers into actionable insights? As a Cost Engineer, you will play a pivotal role in monitoring, analyzing and forecasting the financial outcomes of one…
Added 9 mins ago
Electrical Engineer - Power Distribution
CEL - Critical Power
Williamsburg, VA
…power solutions operating at the center of the AI, hyperscale data center and critical infrastructure ecosystem. An Irish-based manufacturer, distributor and exporter of electrical…
Added 9 mins ago
Engineer I
Victaulic Company
Easton, PA
Engineer 1- Project Design Engineer – Coupling Technology
Added 10 mins ago
AM
MTS Silicon Design Engineer
Advanced Micro Devices, Inc.
Boxborough, MA
- $178,963 to $217,200 USD / year
…design, working on complex issues where analysis of situations or data requires an in-depth evaluation of variable factors. Drive projects or processes of significant technical importance.…
Added 10 mins ago
AM
MTS Silicon Design Engineer
Advanced Micro Devices, Inc.
Boxborough, MA
- $178,963 to $217,200 USD / year
…design, working on complex issues where analysis of situations or data requires an in-depth evaluation of variable factors. Drive projects or processes of significant technical importance.…

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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