Mastercard

Lead AI Engineer

Mastercard
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3 days ago
Arlington, VA, USA +2 moreStaff+
H1B sponsor

Base Salary

$140k - $277k/yr

Responsibilities

  • Design and build enterprise MCP components including security gateways, registries, and reference server implementations.
  • Implement MCP identity, authentication, authorization, auditing, inspection, data-protection, rate-limiting, and kill-switch controls.
  • Build, package, operate, and scale self-hosted open-weight model inference and enable switching across models and providers.
  • Develop evaluation and testing tooling to benchmark model quality, cost, latency, and safety with reproducible results.
  • Apply MLOps practices including infrastructure-as-code, observability, monitoring, and production operations.
  • Partner with security, privacy, legal, identity, and AI governance stakeholders to implement enterprise requirements.
  • Track developments in MCP, open-weight models, and agentic protocols and help determine what to adopt or prototype.

Requirements

  • Strong knowledge of LLMs, foundation models, agents, and protocols such as MCP.
  • Production software engineering experience building well-tested services.
  • Solid MLOps experience with CI/CD, infrastructure-as-code, containers, observability, and model and service monitoring.
  • Good cloud platform knowledge, with AWS preferred and Azure or GCP valuable.
  • Experience building model benchmarks and evaluations for quality, cost, latency, and safety.
  • Hands-on experience serving, operating, self-hosting, and scaling open-weight models; fine-tuning or adapting models is advantageous.
  • Working knowledge of API security, identity, authentication, and access control.
  • Awareness of model provenance, licensing, data sovereignty, and financial-services regulation.
  • Clear communication, collaboration, curiosity, learning agility, and ability to work independently.

Benefits

  • Medical, prescription drug, dental, vision, disability, and life insurance.
  • Flexible spending account and health savings account.
  • 16 weeks of new parent leave, up to 20 days of bereavement leave, 80 hours of Paid Sick and Safe Time, 25 vacation days, 5 personal days, and 10 U.S. observed holidays.
  • 401(k) with company match and deferred compensation for eligible roles.
  • Fitness reimbursement or on-site fitness facilities.
  • Tuition reimbursement eligibility.
  • The posting lists locations in Purchase and New York, New York; Arlington, Virginia; and O’Fallon, Missouri, with the position intended to be filled by 02/07/2027.
Mastercard

About Mastercard

10,000+ employees

Mastercard builds and operates a global payments network used by banks, merchants, fintechs, and governments, offering card processing, real-time payments, tokenization, and fraud/risk services. It generates revenue from transaction processing and assessment/service fees across more than 200 countries and territories. Founded in 1966 and headquartered in Purchase, New York, Mastercard is a public company listed on the NYSE (ticker: MA).

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