Jobs in the United States

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Staff Engineer, Hardware Design (PLM)
Celestica
Austin, TX
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Senior Staff Engineer - Agentic Identity
Cisco
Austin, TX
Deliver Developer Tooling & APIs: Build reusable APIs, SDKs, CLI tools, and integration patterns (including Model Context Protocol/MCP-based access) to enable seamless adoption across…
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Management Consultant - Data Engineer
IBM
Austin, TX · Houston, TX · Irving, TX · Dallas, TX
As a Data Engineer specializing in Data Platforms-Databricks, you will play a critical role in building and enhancing the Databricks platform for client's Data and AI use cases. This…
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Data Scientist 1
Baylor Scott & White Health
Austin, TX
Use SQL and Python to explore and prepare data, engineer features, perform statistical analysis,develop models, automate workflows, and validate results.
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Lead Solution Architect
RealmOne
Remote, United States
Prior experience as a Solution Architect, Chief Engineer, Lead Systems Engineer, or equivalent senior technical leader.
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AI/HPC Network Performance Engineer
Meta
Austin, TX
AI/HPC Network Performance Engineer Responsibilities:
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Forward Deployed Engineer (Palantir Foundry & Custom Development)
Jacobs
Austin, TX · Dallas, TX
We're looking for a Forward Deployed Engineer (FDE I) to build alongside more experienced FDEs, Implementation Leads, and Architects, executing well-defined requirements across Foundry and…
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Senior Product Security Engineer
IBM
Austin, TX · Dallas, TX
The Secure Lifecycle Management (SLM) organization is seeking a Product Security Engineer to partner closely with the engineering teams responsible for HashiCorp Vault, Boundary, and Radar.…
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Senior Frontend Engineer - Hashicorp Vault
IBM
Austin, TX · Dallas, TX
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Core Senior .NET Software Engineer
Evolent
Austin, TX
The Senior Software Engineer leads the design, development, and deployment of complex software solutions, ensuring scalability and maintainability. This role architects and implements…
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Staff Software Engineer
Realtor.com
Austin, TX
…homes, and the leads we send to agents. As the founding Staff engineer for API security on our new Edge and API Security team, you'll set the technical direction for how we protect them.…
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C
Software Engineer Data & AI II (Full Time) – United States
Cisco
Austin, TX
- Full-time
You are a passionate software engineer with expertise in developing scalable data pipelines, designing robust analytics platforms, and building infrastructure to support machine learning…
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Sr Forward Deployed Engineer (Palantir Foundry & Custom Development)
Jacobs
Dallas, TX · Austin, TX
We're looking for a Mid-Senior Forward Deployed Engineer (FDE II) to own real ambiguity: taking a rough problem statement from the client, Implementation Lead, PM, or Architect, and driving…
Added 3 mins ago
DC
DATA SCIENTIST (DATA ARCHITECT/DATA ENGINEER/AI-ML SPECIALIST)
Defense Counterintelligence and Security Agency
Hanover, MD · Boyers, PA · Quantico, VA · Stafford, VA
- $105,262 to $160,933 USD / year
…seeking a non-supervisory Data Scientist (Data Architect/Data Engineer/AI-ML Specialist). The incumbent will provide support, guidance and expertise in various Data Scientist functions.…
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Senior Manager, Cloud Adoption Engineering
Oracle
Reston, VA · Washington, DC
Ensure each engagement has an agreed scope, accountable engineer, customer stakeholders, success criteria, and expected deliverables.
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E2E Network Test Engineer
Infosys
United States
Added 3 mins ago
Java Developer - Software Engineer III
Bank of America, National Association
United States
The Fraud Technology team is seeking an experienced, hands-on Software Engineer III to design, develop, and support enterprise-grade applications while providing technical leadership…
Added 3 mins ago
Java Developer/Software Engineer III
Bank of America, National Association
United States
The Fraud Technology team is looking for an experienced, hands-on Java Developer to design, build, and support enterprise-grade applications while guiding the team through the full software…
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E2E Network Test Engineer
Infosys
United States
Added 3 mins ago
E2E Network Test Engineer
Infosys
United States
Added 3 mins ago
E2E Network Test Engineer
Infosys
United States
Added 3 mins ago
Platform Engineer - AI Observability & Governance (OpenShift)
Bank of America, National Association
United States
…record of running enterprise platforms in production. The ideal engineer is hands-on, comfortable owning production issues end to end, picks up new tools quickly, and can lead…
Added 3 mins ago
Platform Engineer - AI Guardrails (OpenShift)
Bank of America, National Association
United States
…record of running enterprise platforms in production. The ideal engineer is hands-on, comfortable owning production issues end to end, picks up new tools quickly, and can lead…
Added 5 mins ago
Director, Cloud Infrastructure
Accommodations Plus International
Melville, NY
…hands-on, player-coach role: an expert AWS architect and network engineer who also leads people. Operating globally, the Senior Director will set and review AWS architecture, including…
Added 5 mins ago
Senior Software Engineer - Access Management
Databricks
Bellevue, WA · San Francisco, CA

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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