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Project Rigging Engineer
Bechtel Corporation
Port Arthur, TX
The Rigging Engineer is based to Bechtel Equipment Operations, Inc. reports to the Lead Rigging Engineer and provides operational and technical support to Bechtel rigging superintendents,…
Added just now
AS
Lead Data/AI Engineering
AT&T Services, Inc.
Remote, United States
- $158,200 to $237,400 USD / year
Design, Development, Testing, and Deployment: Lead the creation of scalable Data & AI applications using best practices in software engineering such as automation, version control, and…
Added just now
AS
Principal Software Engineering
AT&T Services, Inc.
Remote, United States
- $174,100 to $261,100 USD / year
Strong software and AI development experience using one or more modern programming languages:
Added 1 min ago
Senior Engineer - Protection & Control
THE UNITED ILLUMINATING COMPANY
United States Of America, CT
Job Title: Senior Engineer – Protection & Control
Added 1 min ago
NeoLoad Performance Test Engineer
CACI, INC.-FEDERAL
Remote, United States
We are seeking a NeoLoad Performance Test Engineer to design, execute, and analyze load, stress, endurance, and scalability tests across JTMS applications, interfaces, and integrated…
Added 1 min ago
Cloud Cyber Engineer (Linux)
CACI, INC.-FEDERAL
Sterling, VA · Denver, CO
CACI/BITS is seeking a Cyber Security Engineer to support our Makalu contract. If you are interested and passionate about working as part of a modern, fast-paced agile software development…
Added 1 min ago
Applications Engineer
Omni Technologies
Greendale, IN
Job Summary: The Applications Engineer translates customer equipment challenges and application requirements into practical, manufacturable polymer component solutions. Serving as a…
Added 2 mins ago
Senior Engineer - New Technology
DTE Energy
Westland, MI
Senior level engineer responsible for planning and conducting engineering activities. Requires the use of advanced techniques and the application of theories, precepts, practice and…
Added 3 mins ago
Software Development Engineer, AWS Agentic AI
Amazon Web Services, Inc.
Bellevue, WA
As a Software Development Engineer, you will solve technical challenges and act as a mentor to other junior engineers. Given that this is an early-stage initiative, you'll play an active…
Added 3 mins ago
Sr. Mfg Eng; Process Quality, Hardware Engineering Services - Manufacturing
Amazon Data Services, Inc.
Austin, TX · Seattle, WA
…closely with our ODMs, CMs, internal AWS hardware and software development teams, and with upstream component vendors to scale up manufacturing processes and ensure we can achieve our…
Added 4 mins ago
Data Engineer
KBR
Beavercreek, OH
…leveraged across of range of projects, such as advanced analytics, application development, large-scale enterprise data warehouses, data marts, and data lakes. KBR/Trinzic data…
Added 4 mins ago
BH
Senior Analytics Engineer Clinical Quality and Outcomes
BEHAVIORAL HEALTH PRACTICE SERVICES LLC.
Remote, United States
- $132,000 to $145,000 USD / year
The Senior Analytics Engineer, Clinical Quality and Outcomes supports the Chief Medical Officer organization in building the future state of clinical quality, patient safety, outcomes…
Added 5 mins ago
TC
Professional Engineer - Neighborhood Streets
The City of Fort Worth
TX
- $37.66 to $48.95 USD / hour
A Professional Engineer position is available with the City of Fort Worth Transportation and Public Works Department on the Capital Delivery Neighborhood Streets Team. The Professional…
Added 6 mins ago
Sr. Mechanical Engineer, Satellites (Starlink)
SpaceX
Redmond, WA
As a mechanical design engineer within the satellite vehicle engineering organization you will get to solve complex structural, thermal, and electromechanical problems on the various space…
Added 7 mins ago
Lead engineer, Platform (Seattle, WA)
Starbucks Coffee Company
WA
Accountable for system configurations and baselines to support secure application development software control best practices and standards
Added 7 mins ago
Technical Consulting Engineer - Architecture
Cisco
Research Triangle Park, NC
The application window is expected to close on: 12/03/2026Meet the Team
Added 7 mins ago
Full-Stack UI Engineer (AI Platforms) NC - Hybrid
Cisco
Research Triangle Park, NC
The application window is expected to close on: 12/07/2026Meet the Team
Added 9 mins ago
Software Engineer
NetApp
Durham · San Jose
As a Software Engineer, your responsibilities will include developing and maintaining cloud-based solutions. You will focus on solving complex problems, developing, testing, automating and…
Added 9 mins ago
BC
DSP/ML Research Engineer Intern | Summer 2027
Bose Corporation, U.S.A
MA
- $40 to $51.25 USD / hour
We are looking for a Machine Learning/DSP Engineer Intern to join our research lab this summer! In this role you will help build our next generation product experiences enabling people to…
Added 9 mins ago
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DSP/ML Research Engineer Co-op | Spring 2027
Bose Corporation, U.S.A
MA
- $40 to $51.25 USD / hour
We are looking for a Machine Learning/DSP Engineer Co-op to join our research lab this spring! In this role you will help build our next generation product experiences enabling people to…
Added 9 mins ago
Developer Sr, IT - Application Systems
Logistec
Galena Park, TX
Join Enstructure as a Senior Software Engineer and play a key role in shaping the future of marine logistics across North America!
Added 10 mins ago
Full Stack Engineer
MstarInc Morningstar Inc. Legal Entity
United States
…We are seeking a talented and motivated Full-Stack Software Engineer with a strong focus on Java, .NET, and Python backend development to join our engineering team. In this role, you will…
Added 10 mins ago
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BAS/BMS Controls Engineer
Automated Logic Contracting Sv
Glen Allen, VA
- $64,500 to $129,500 USD / year
As a Controls Engineer, you’ll be an expert voice on-site- performing difficult and complex engineering activities and creating standard work for common procedures.
Added 10 mins ago
CC
NPI Staff Engineer
Carrier Corporation
Charlotte, NC
- $96,000 to $192,000 USD / year
The NPI (New Product Introduction) Staff Engineer supports the industrialization and launch of new products at a Carrier manufacturing facility, assisting with validations of MCS and pilot…
Added 10 mins ago
Sr Manager App Integration Engineer
Johnson & Johnson Services Inc. Legal Entity
Raritan, NJ
The Sr Manager Application Integration Engineer will provide hands-on technical leadership for enterprise integration capabilities supporting large supply chain transformational programs…

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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