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Added 26 mins ago
AI
AWS Technical Lead / Architect
Arocom IT Solutions Pvt Ltd
Remote, United States
- ₹1,800,000 to ₹2,500,000 INR / year
You will oversee solution design, enforce best practices, and guide the implementation of complex systems ranging from Infrastructure Setups to AI-powered solutions & Enterprise Data…
Added 34 mins ago
Entry level Sourcer/Proposal Recruiting Specialist
One Federal Solution
Tysons, VA
One Federal Solution is seeking a Sourcer to support live federal business development proposals and build a strong pipeline of candidates for future opportunities. The primary focus is…
Added 34 mins ago
Product Manager - Internal AI Enablement
GOVX
San Diego, CA
…embed with each team to map their workflows before proposing a…
Added 34 mins ago
Business Process Automation Specialist
Cydcor
Agoura Hills, CA
· Work with internal departments and participating independent sales offices to evaluate solution effectiveness and opportunities for broader use
Added 34 mins ago
SAP FICO Solution Architect
Clarkston Consulting
Dallas, TX
…people as its biggest strengths. Come join us as an SAP FICO Solution Architect, and in this role, you will deliver creative business solutions to our market-leading clients in the life…
Added 34 mins ago
SAP FICO Solution Architect
Clarkston Consulting
Miami, FL
…people as its biggest strengths. Come join us as an SAP FICO Solution Architect, and in this role, you will deliver creative business solutions to our market-leading clients in the life…
Added 34 mins ago
SAP FICO Solution Architect
Clarkston Consulting
Milwaukee, WI
…people as its biggest strengths. Come join us as an SAP FICO Solution Architect, and in this role, you will deliver creative business solutions to our market-leading clients in the life…
Added 34 mins ago
SAP FICO Solution Architect
Clarkston Consulting
Philadelphia, PA
…people as its biggest strengths. Come join us as an SAP FICO Solution Architect, and in this role, you will deliver creative business solutions to our market-leading clients in the life…
Added 34 mins ago
SAP FICO Solution Architect
Clarkston Consulting
Atlanta, GA
…people as its biggest strengths. Come join us as an SAP FICO Solution Architect, and in this role, you will deliver creative business solutions to our market-leading clients in the life…
Added 34 mins ago
DS
(1119604) Lead Software Engineer - Emerging Technologies
Diversified Services Network, Inc.
Chicago, IL
- $140,000 to $145,000 USD / year
Translate business opportunities, product goals, and technical requirements into scalable software designs, solution patterns, technical roadmaps, and implementation plans.
Added 34 mins ago
DS
(1119604) Lead Software Engineer - Emerging Technologies
Diversified Services Network, Inc.
Peoria, IL
- $140,000 to $145,000 USD / year
Translate business opportunities, product goals, and technical requirements into scalable software designs, solution patterns, technical roadmaps, and implementation plans.
Added 34 mins ago
DS
(1119604) Lead Software Engineer - Emerging Technologies
Diversified Services Network, Inc.
Irving, TX
- $140,000 to $145,000 USD / year
Translate business opportunities, product goals, and technical requirements into scalable software designs, solution patterns, technical roadmaps, and implementation plans.
Added 34 mins ago
DS
(1119604) Lead Software Engineer - Emerging Technologies
Diversified Services Network, Inc.
Broomfield, CO
- $140,000 to $145,000 USD / year
Translate business opportunities, product goals, and technical requirements into scalable software designs, solution patterns, technical roadmaps, and implementation plans.
Added 34 mins ago
S
VP of Engineering
Screencastify
Chicago, IL
- From $200,000 USD / year
…exciting markets outside of K-12 including bringing our tested solution into companies and organizations. Castify is used by over 15M people today and is seeking a VP of Engineering to join…
Added 34 mins ago
NS
Cybersecurity Consulting Sales Executive
Nexta Security
New York City, NY
- $45,000 to $95,000 USD / year
Collaborate with technical and solution leaders to scope opportunities and develop tailored proposals and presentations.
Added 37 mins ago
S
Founding Engineer
Shift
San Francisco, CA
- $150,000 to $210,000 USD / year
Someone who always finds a solution to a problem, regardless of past experiences with it or skill-level.
Added 37 mins ago
CO
Senior Applications Developer
Commonwealth of Pennsylvania
Harrisburg, PA
- $78,925 to $119,844 USD / year
Join the Pennsylvania Liquor Control Board as a Senior Applications Developer and help build the technology behind important online ordering systems. This position offers the chance to…
Added 38 mins ago
Product Developer
SXD Inc.
New York City, NY · New York, NY
SXD is seeking a proactive and highly detail-oriented Product Developer to bring zero waste products to life. You’ll work directly with team SXD and our global partners to create, refine,…
Added 41 mins ago
HPC & MLOps Engineer
C-Gen.AI
Mountain View, CA
Configure, deploy, monitor, and maintain C-Gen.AI Cluster solution for a diverse client base.
Added 42 mins ago
Customer Success (AI Deployment, supply chains)
Elm AI
New York City, NY
…closely with our product and engineering team to bring that solution to…
Added 42 mins ago
E
Founding Product Engineer
Emerge
New York City, NY
- $120,000 to $200,000 USD / year
…brick-and-mortar job centers with one integrated, tech-powered solution that meets low-income individuals exactly where they are. Today, the federal government spends billions annually on…
Added 42 mins ago
E
Founding Product Designer
Emerge
New York, NY
- $120,000 to $200,000 USD / year
…brick-and-mortar job centers with one integrated, tech-powered solution that meets low-income individuals exactly where they are. Today, the federal government spends billions annually on…
Added 43 mins ago
M
SVP, Data Science & AI Product Enablement
Monks
United States
- $225,000 to $275,000 USD / year
…testing, and optimization - with the engineering, product, and solution consulting needed to turn that intelligence into AI-powered products, automation, and agentic…
Added 44 mins ago
MC
VP of Utility Solutions
Mercury Computing
Remote, United States
- $150,000 to $250,000 USD / year
Our solution brings additional power capacity to existing and new-build datacenters, available in months instead of 5+ years for a typical interconnection. Mercury unlocks this power…
Added 44 mins ago
MC
VP of Data Center Solutions
Mercury Computing
Remote, United States
- $150,000 to $250,000 USD / year
Our solution brings additional power capacity to existing and new-build datacenters, available in months instead of 5+ years for a typical interconnection. Mercury unlocks this power…

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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