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Software Architect
Mitsubishi Electric US, Inc.
Suwanee, GA
- $111,200 to $152,900 USD / year
This position will architect, design, develop, debug, test and maintain software programs for a variety of environments, with a focus on AWS cloud, firmware and mobile applications.
Added just now
Lead IT Site Reliability Eng
Kforce
Remote, United States
Create and/or approve technical documentation for projects and support (e.g., Technical Requirements, Technical Design, Procurement Specifications, Technical Flow Charts, Implementation…
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80 FE Angular AWS NodeJS Rest
Kforce
Westlake, TX
- $64 to $74 USD / hour
Design and develop software solutions that meet functional and non-functional requirements and that are aligned to the platform's strategic direction
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Senior .NET Developer
Kforce
NYC, NY
- $119 to $128 USD / hour
Kforce's client, a financial services organization in NYC, is seeking a Senior .NET Developer to build and enhance cloud-based applications supporting Fixed Income electronic trading and…
Added just now
SA
Senior Product Owner - Account and Loyalty Team - Digital
Southwest Airlines
Dallas, TX
- $119,900 to $133,200 USD / year
…roadmaps, prioritize complex solutions, and translate Customer and data insights into actionable product outcomes. You’ll guide products and features from concept through launch across…
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Simulation Lab Education Facilitator
Trinity Health Of New England Corporation, Inc.
Hartford, CT
- $24.85 to $39.75 USD / hour
In this hands-on role, you will help design realistic learning environments by operating high-fidelity simulation equipment, audiovisual technology, and mobile simulation systems. Working…
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Pharmacy Inventory Logistics Technician
Trinity Health - Michigan
Ann Arbor, MI
…procurement and inventory systems, electronic spreadsheets, data base management software, word processing software, diverse system integration software, and bar code systems and…
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Internship – Automation & AI Solutions (Milwaukee, WI)
Robert W. Baird & Co. Incorporated
Milwaukee, WI
Design and build end-to-end workflow solutions that integrate data from systems such as Salesforce, SQL, Snowflake, SharePoint and Excel
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Project Quality Engineer
Bureau Veritas
Chicago
Participate in design, document, and readiness reviews where quality input is required.
Added 1 min ago
Associate Scientist, R&D
Campbell Soup Supply Co. LLC
Camden, NJ
…achieving business goals by ensuring that objectives, product design, and timelines are met. You will lead benchtop, pilot plant, and plant trials to test and create prototypes throughout…
Added 1 min ago
10894- SAP ABAP Sr. Business Process Analyst- SD/OTC
Hyundai Autoever America
Joliet, IL
Selected candidate will be responsible for the design, development, configuration, and support of SAP Sales & Distribution (SD) solutions across SAP ECC and S/4HANA landscapes. Serving as a…
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10893-SAP PP/MM Sr. Business Process Analyst
Hyundai Autoever America
Joliet, IL
Lead Repetitive Manufacturing (REM) design, configuration, and support. This covers REM profiles, run schedules, planning, backflushing, reporting points, pull lists, and postprocessing.
Added 1 min ago
Project Development Manager
SitelogIQ
Remote, United States
…company focused on making buildings better. We provide planning, design, and management solutions for organizations that want efficient and sustainable building environments that are…
Added 2 mins ago
Regional Vice President of Facilities
RPM Living
Dallas, TX
Design and implement preventative maintenance program for all properties.
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Vice President, Wealth Management Technology
Raymond James & Associates, Inc.
Saint Petersburg, FL
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Senior ServiceNow Developer
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Dallas, TX
We are seeking a Sr. ServiceNow Developer to support the design, configuration, development, and ongoing enhancement of our ServiceNow platform. This role will partner with business and…
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Senior Manager, Digital Legal Delivery, US
Herbert Smith Freehills Kramer (US) LLP
NY
· Work in partnership with the senior managers across UK and Australia to design, deploy and keep under review all processes and procedures that the eDiscovery team should follow…
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Quality Engineer
Uniloy INC
Tecumseh, MI
- $73,000 to $83,000 USD / year
…objectives, improve operational performance, and facilitate data-driven…
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Ld VDC Specialist
DPR GP
Newport Beach, CA
Supports implementation across multiple or complex projects for both established and emerging Virtual Design and Construction (VDC) workflows using data-rich models to coordinate, quantify,…
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Child Life Specialist
Tufts Medical Center, Inc.
United States
…and programs. The majority of time is spent overseeing the design, implementation or delivery of processes, programs and policies using specialized knowledge and skills typically acquired…
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Registered Nurse- Adult Vascular Access (IV Team)
Tufts Medical Center, Inc.
United States
…and programs. The majority of time is spent overseeing the design, implementation or delivery of processes, programs and policies using specialized knowledge and skills typically acquired…
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Clinical Research Coordinator II
Tufts Medical Center, Inc.
United States
…and programs. The majority of time is spent overseeing the design, implementation or delivery of processes, programs and policies using specialized knowledge and skills typically acquired…
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Enterprise Cyber Security SME-Principal
Odyssey Systems Consulting Group, Ltd.
Hanscom AFB, MA
…acquisition, upgrade, and modification programs, including design, development, testing, fielding, operation, sustainment, DoD Cybersecurity Authorization Processes, and providing oversight…
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Test Automation Engineer SE-3
Odyssey Systems Consulting Group, Ltd.
Niceville, FL
…C4ISR systems. This role supports integrated testing efforts, data analysis, documentation development, and contributes to Agile and open‑architecture test…
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Automation & DTC Fulfillment Supervisor
Dana-Co
Secaucus, NJ
Partner with IT, inventory control, and operations teams to maintain data integrity

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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