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Software Engineer
Mecka
New York, NY · San Francisco, CA
- $165,000 to $200,000 CAD / year
Mecka AI is building the data infrastructure layer for robotics and embodied AI.
Added just now
Senior Staff Software Engineer, Site Reliability Engineering
Google
Mountain View, CA
…Technical Infrastructure team to keep it running. From developing and maintaining our data centers to building the next generation of Google platforms, we make Google's product portfolio…
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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…
Added just now
Technology Leadership Program - Hybrid (Starting August 2027)
Target Enterprise Inc
NCD-0375 Brooklyn Park, MN
As an Engineer in the Technology Leadership Program, you will use your technology acumen to provide input to assist with evaluation of new technologies and contribute to the design,…
Added just now
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Senior Cloud Security Engineer - R01573020
Brillio
NY
- $120,000 to $130,000 USD / year
Third-Party Security Assessments: Conduct security assessments of third-party integrations, emerging AI tools, and technology solutions to ensure data protection, integrity, and regulatory…
Added 1 min ago
Senior Software Architect - Platform
Fiserv Solutions LLC
Alpharetta, GA · Berkeley Heights, NJ
Data Commerce Solutions (DCS) is a Fiserv business unit that turns the company's differentiated data into scalable data platforms and products across credit, marketing, verification, fraud,…
Added 1 min ago
AWS and AI engineer
Infosys
United States
The Infosys Data and Analytics (DNA) unit is at the forefront of transforming data into actionable insights, driving business growth and operational efficiency. We specialize in leveraging…
Added 2 mins ago
Senior Product Engineer
Henry Pratt Company, LLC
Kimball, TN
…of water infrastructure. From lifesaving fire protection to data intelligence, we are committed to developing products and solutions that help cities and utilities deliver clean, safe…
Added 2 mins ago
Sr. Systems Engineer II
Proconex
Royersford, PA
The Senior Systems Engineer II applies expert-level process control and automation knowledge to architect solutions, optimize manufacturing operations, mentor engineers, improve engineering…
Added 2 mins ago
Quality Technician I - Defect Analysis (1st Shift)
LG Energy Solution Michigan, Inc.
Holland, MI
Perform assigned tests and experiments according to approved test plans, procedures, and engineering direction; collect and organize resulting data.
Added 2 mins ago
Engineer - CNC Process, Junior
Linamar - New
Wilson, NC
2.1 Ensure compliance with all legislative requirements in the facility’s geographic location and: · The Global Operating System Plays; · ISO 14001:2004 Environmental Management system…
Added 2 mins ago
Sr. Data Engineer - Amazon Leo, Leo Global Business
Amazon Kuiper Commercial Services LLC
Bellevue, WA
As a Data Engineer in Leo's Global Business Operations (GBO), you will be one of the architects and engineers building up the cloud data infrastructure for use across Leo. You will be…
Added 2 mins ago
Software Development Engineer II, Customer Terminal Aviation Quality
Amazon Kuiper Manufacturing Enterprises LLC
Redmond, WA
We're seeking an exceptional Software Quality Engineering Manager who will drive innovation and excellence in aviation terminal software development. In this pivotal role, you'll be the…
Added 2 mins ago
Software Dev Engineer I, Security Platform
Twitch Interactive, Inc.
Seattle, WA · Irvine, CA · San Francisco, CA
We’re about community, inside and out. You’ll find coworkers who are eager to team up, collaborate, and smash (or elegantly solve) problems together. We’re on a quest to empower live…
Added 3 mins ago
Project Quality Engineer
Bureau Veritas
Chicago
The Projects Quality Engineer provides end-to-end quality assurance and oversight across engineering, procurement, supplier manufacturing, construction, commissioning, and project turnover…
Added 4 mins ago
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Director of Information Security Engineering
Southern New Hampshire University
Remote, United States
- $129,057 to $206,531 USD / year
Provide authoritative technical direction across security architecture and engineering disciplines, including network and cloud security, endpoint and data protection, application security,…
Added 4 mins ago
Project Development Manager
SitelogIQ
Remote, United States
…uncover opportunities, assess facilities, shape solutions, and build the technical and financial case that moves projects forward. You’ll be a trusted technical resource to both our…
Added 5 mins ago
UI
Quality Engineer
Uniloy INC
Tecumseh, MI
- $73,000 to $83,000 USD / year
Analyze quality, process, productivity, and operational performance data; identify trends and improvement opportunities; develop data-driven recommendations; and communicate findings to…
Added 6 mins ago
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Project Engineer - Building Group
Royal Electric
Pleasanton, CA
- $120,000 USD / year
We have a current opening for a Project Engineer for our Building Group focusing on Multifamily and Commercial projects. The PE will sit out of the office in Pleasanton, CA.
Added 7 mins ago
Lead Engineering Associate II
Aerospace
Minneapolis, MN
As a Lead Engineer Associate II here at Honeywell Aerospace, you will take a lead role in engineering projects, providing technical expertise and guidance to ensure successful project…
Added 7 mins ago
Chemical Process Engineer
Sensient
Saint Louis, MO · St. Louis, MO
The Natural Color Conversion is here and we are growing rapidly! Do to this growth we are adding a Chemical Process Engineer to our team. This exciting role will be instrumental in…
Added 7 mins ago
MRO Quality Engineer - FAA
TransDigm Group Inc.
Vergennes, VT
The Quality Engineer for the FAA Repair Station is responsible for ensuring that aerospace products and repair processes meet stringent internal, regulatory, and customer requirements. This…
Added 7 mins ago
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Forward Deployed Engineer
Caylent
United States
- $136,000 to $216,000 USD / year
Our capabilities span generative and agentic AI, cloud migration and modernization, cloud-native application development, data and analytics, DevOps, managed services, security and…
Added 8 mins ago
Geotechnical Engineer
Dynamic Engineering Consultants, PC
Allen, TX
The Geotechnical Engineer is responsible for performing subsurface investigations, engineering analyses and evaluations related to site development projects, forensic investigations and/or…
Added 8 mins ago
Advanced Commercialization Engineer IV (ACE Engineer IV)
Applied Materials
Kalispell, MT · Kalispell
The Advanced Commercialization Engineer IV for the New Product Commercial team (NPC) acts as a senior technical authority driving early commercialization of first‑in‑world semiconductor…

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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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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