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Senior CloudOps Engineer
Worldpac
Oakbrook, IL
- $150,000 to $170,000 USD / year
Position Overview Worldpac is seeking a highly experienced Senior CloudOps Engineer to design, build, operate, and continuously improve the cloud platforms that power our high-volume…
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Engineering Manager, Verification and Validation (STATCOM)
GE Vernova
Saratoga Springs, NY
…bring strong experience in verification and validation of power system controls, real-time testing, and team leadership, along with the ability to work effectively with customers and…
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Program Manager (Capital Improvement Program) - Environmental Services Department
City of San Jose
San Jose, CA
- $134,490.72 to $174,851.04 USD / year
…supervising environmental services specialist, an associate engineer, and engineering technicians. This position works closely with executive management staff and manages consultant program…
Added 1 min ago
Systems Design Project Engineer
GSV UPS General Services
United States
Investigates mechanical breakdown problems (e. g. , conveyor system failures, operator errors, system design flaws, etc. ) to prevent a decrease in productivity and efficiency.
Added 1 min ago
Systems Safety Engineer
Actalent
Middletown, RI
Job DescriptionThe Safety Engineer will utilize both quantitative and qualitative risk assessment techniques to perform comprehensive safety analysis. The role involves analyzing hardware,…
Added 1 min ago
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Systems Engineer
Actalent
Acton, MA
- $150,000 to $200,000 USD / year
Job title: Systems Engineer DescriptionSystems Engineer Space & Optical Sensor SystemsWe are seeking a Systems Engineer to support the development, integration, and testing of advanced…
Added 1 min ago
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Software Test Engineer
Actalent
Melbourne, FL
- $50 to $70 USD / hour
Review and interpret system and software requirements, ensuring full traceability and compliance with specifications.
Added 1 min ago
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Mechanical Engineer
Actalent
Syracuse, NY
- $40.86 to $57.69 USD / hour
Job Title: Mechanical EngineerJob DescriptionThis Mechanical Engineer role focuses on designing and engineering HVAC and related mechanical systems for a variety of building and industrial…
Added 1 min ago
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Manufacturing Engineer
Actalent
Edgewater, FL
- $35 to $45 USD / hour
…productivity and reduce operational costs. The Manufacturing Engineer applies industrial engineering principles, Lean methodologies, and continuous improvement techniques to reengineer…
Added 1 min ago
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Piping Engineer
Actalent
Downers Grove, IL
- $35 to $48 USD / hour
Job Title: Piping Engineer (Stress Engineer I)Job DescriptionThis early-career Piping Engineer role focuses on piping stress analysis, system flexibility, piping supports, and mechanical…
Added 1 min ago
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Utility Scale Structural/civil Engineer
Actalent
Kansas City, MO
- $110,000 to $150,000 USD / year
Structural/Civil Engineer (Solar & Battery Energy Storage Systems) | Remote
Added 2 mins ago
Structural Engineer III
Passero Associates
Charlotte, NC
Passero Associates' has an excellent career opportunity for a Structural Engineer III to join our Structural Department and serve as a key contributor on a wide variety of structural…
Added 2 mins ago
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Finance Data Analyst
Confido
New York, NY
- $125,000 to $175,000 USD / year
Confido is the AI operating system that runs cash application, deductions, trade and planning in one place for CPG brands. That means Finance, Sales, and Ops finally work on the same number.
Added 3 mins ago
Product Development Engineer II
PMT Corporation
Chanhassen, MN
…plastic / reconstruction surgery areas. The Product Development Engineer II takes ownership of medium- to large-scale projects from concept through commercialization, ensuring products are…
Added 3 mins ago
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Automation Engineer (Amazon RME)
Aerotek
Niagara Falls, NY
- $42 to $45 USD / hour
Job Title: Automation Engineer (Amazon RME)Job DescriptionThis role focuses on designing, developing, and implementing automation control systems for industrial processes and warehouse…
Added 4 mins ago
Senior Staff Software Engineer, Site Reliability Engineering
Google
Mountain View, CA
…in coding, algorithms, complexity analysis and large-scale system…
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Senior Software Engineering Manager, Infrastructure, Google Cloud Security and Privacy
Google
Sunnyvale, CA
Like Google's own ambitions, the work of a Software Engineer goes beyond just Search. Software Engineering Managers have not only the technical expertise to take on and provide technical…
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Senior Systems Integration Engineer
DISHER
Southern Pines, NC
Senior Systems Integration Engineer - (TS/SCI) - Southern Pines, NC
Added 4 mins ago
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Site Reliability and Network Infrastructure Engineer - R01573075
Brillio
Seattle, WA
- $120,000 to $130,000 USD / year
Site Reliability and Network Infrastructure Engineer
Added 4 mins ago
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Enterprise Technology (ET) Systems Engineer - R01573073
Brillio
Seattle, WA
- $120,000 to $130,000 USD / year
As an Enterprise Technology (ET) Systems Engineer at Brillio, you will manage, design, and maintain a broad suite of enterprise technology systems and infrastructure supporting global…
Added 5 mins ago
AWS and AI engineer
Infosys
United States
⦁ Participate in coding and integrate new features or updates into existing applications, with a focus on maintaining system stability
Added 5 mins ago
Senior Product Engineer
Henry Pratt Company, LLC
Kimball, TN
…industries and has an immediate opening for a Senior Product Engineer in our newest Kimball, TN facility. For over 160 years MWP’s manufacturing commitment has ensured one of the world’s…
Added 6 mins ago
Sr. Systems Engineer II
Proconex
Royersford, PA
The Senior Systems Engineer II is a senior technical leadership role responsible for leading small to mid-sized automation projects, serving as a primary technical representative for…
Added 6 mins ago
Support Desk Engineer
Five Nines Technology Group, LLC
Lincoln, NE
A Support Desk Engineer serves as a primary point of contact for client technical support, playing a key role in delivering a high-quality client experience. They manage and resolve…
Added 6 mins ago
Support Desk Engineer
Five Nines Technology Group, LLC
Omaha, NE
A Support Desk Engineer serves as a primary point of contact for client technical support, playing a key role in delivering a high-quality client experience. They manage and resolve…

Closed listing

Mastercard

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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About employer

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

About employer

More about this job

Skills

ML
Workflow
Normalise data
Documentation
Unstructured data
Cybersecurity
Confidentiality

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