Senior AI Engineer

Mastercard

Confirmed live yesterday High trust

Quick summary

Work type
On-site
Location
O Fallon, MO
Salary
$115,000–$184,000 / yr
Posted
11 days ago
Freshness
Confirmed live yesterday

Market check

Salary context

Below market

How this pay compares to similar roles

Similar $204k
This role $150k
$98k most similar roles pay here $270k

This role pays less than 85% of similar roles. Most pay $162,000–$246,150 — the shaded band above. At the midpoint, this role pays about $150k versus about $204k for comparable roles.

Based on 240 similar postings.

Employer

About Mastercard

Mastercard is a global technology company in the payments industry, processing transactions between financial institutions and merchants using its extensive network of credit, debit, and prepaid card products. Industry: Payments Technology & Financial Services

Mastercard currently has 116 open roles on FindRole.

Listed pay typically runs $122,000–$207,000 across 104 roles with salary data.

Most-posted roles

View all roles at Mastercard

At a glance

TL;DR · Senior AI Engineer

As a Senior AI Engineer within the Business & Market Insights group, you will join the Operational Intelligence Program to architect and deliver next-generation LLM, agentic, and multimodal AI systems. You will be responsible for developing multi-agent systems using LangGraph, CrewAI, and AutoGen, while building production-grade RAG and Graph-RAG pipelines integrated with vector databases like Pinecone and Neo4j. Your daily work involves fine-tuning models through RLHF and PEFT, managing LLMOps on Databricks, and developing Python backend services for inference orchestration. You will utilize a diverse tech stack including PyTorch, TensorFlow, FastAPI, and various foundation models such as GPT-4o, Gemini, and LLaMA. The role focuses on transforming complex, multi-modal data into agentic systems to solve business challenges while ensuring responsible AI practices, including bias detection and hallucination mitigation for enterprise-scale applications.

What does a AI Engineer earn?

Median $211200 from 132 postings across 36 companies.

See salary data

What you'll do

  • Architect and lead the development of multi-agent AI systems using frameworks like LangGraph, CrewAI, and AutoGen.
  • Design and operationalize multimodal generative AI pipelines to unify text, image, tabular, and graph data.
  • Build production-grade RAG and Graph-RAG systems integrating vector databases and knowledge graphs for semantic retrieval.
  • Lead LLM fine-tuning, prompt engineering, and model alignment strategies to adapt foundation models for enterprise use cases.
  • Establish robust LLMOps and MLOps pipelines on Databricks using MLflow and other tracking tools.
  • Develop high-performance Python backend services for LLM inference orchestration and distributed data workflows.
  • Implement Responsible AI practices including bias detection, hallucination mitigation, and safety guardrails.
  • Research and productionize advancements in generative modeling, agentic AI, and multimodal transformers.

What we're looking for

  • Bachelor's or Master's degree in Computer Science, AI/ML, or Engineering.
  • Significant experience leading and delivering complex Gen AI or ML engineering programs in production environments.
  • Expert-level experience designing and deploying LLM applications, agentic systems, and RAG pipelines from prototype to production.
  • Proficiency with LLM ecosystems including OpenAI, Anthropic, Gemini, Hugging Face, LangChain, and open-source models.
  • Strong command of Gen AI engineering patterns such as prompt engineering, chain-of-thought reasoning, and vector embeddings.
  • Solid knowledge of ML fundamentals including deep learning with PyTorch or TensorFlow and statistical modeling.
  • Advanced Python skills including async programming, FastAPI development, and SQL proficiency.
  • Experience with cloud AI infrastructure (AWS SageMaker, Bedrock, Azure OpenAI, or GCP Vertex AI) and MLOps tools like MLflow.

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