Frost Bank

Engineer III - AI

Frost Bank$110K — $130K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's in Computer Science, Data Science, or related field
  • 4+ years of experience with enterprise-grade AI/ML systems
  • Deep understanding of event-driven design, API orchestration, and modular systems
  • Strong skills in prompt engineering and agent loop optimization
  • Experience leading teams in applying LLMs to real-world problems
  • Proficient in Python, FastAPI, LangChain, and vector databases
  • Excellent written and verbal communication skills

Responsibilities

  • Design and architect intelligent systems leveraging AI capabilities
  • Drive design sessions for agent architecture and task planning
  • Lead initiatives on AI reliability and bias mitigation
  • Collaborate with product and design leaders to prioritize outcomes
  • Act as a system designer and workflow architect
  • Evaluate agent behavior based on AI principles
  • Optimize performance of agentic systems through various strategies
  • Mentor engineers on best practices for AI and tool design

Benefits

  • Medical, dental, vision, long-term disability, and life insurance
  • 401(k) matching
  • Generous holiday and paid time off schedule
  • Tuition reimbursement
  • Extensive health and wellness programs
  • Referral bonus program + more!
Full Job Description
Job Description

Who you are:

As an Engineer III - AI , you believe in using technology to do the right thing. You thrive on designing thoughtful, intelligent workflows and are excited by the future of AI. In this role, you will lead technical efforts on AI reliability, bias mitigation, and adrift detection. You believe in effective communication and will have the opportunity to address potential problems with solutions to complex issues. More than that, this role is about constant improvement and doing so with our signature all-win approach in mind.

What you'll do:
  • Design and architect intelligent systems and workflows that leverage agentic behavior and LLM decision-making capabilities
  • Drive design sessions for agent loop architectures, tool orchestration, and task planning
  • Lead technical efforts on AI reliability, bias mitigation, and drift detection
  • Collaborate with product and design leaders to define outcomes and performance metrics
  • Act as a system designer and workflow architect, not just a code implementer
  • Evaluate agent behavior using AI principles (fairness, reliability, explainability, safety)
  • Optimize performance of agentic systems with caching, throttling, and fallback strategies
  • Mentor engineers in best practices for LLM prompting, agent decomposition, and tool design
  • Always take action using Integrity, Caring, and Excellence to achieve all-win outcomes


What you'll need:
  • Bachelor's in Computer Science, Data Science, or related field
  • 4+ years of experience with enterprise-grade AI/ML systems
  • Deep understanding of event-driven design, API orchestration, prompt engineering, tool orchestration, planner/verifier roles, and system modularity
  • Strong skills in prompt engineering, memory and context handling, and agent loop optimization
  • Experience leading teams in applying LLMs and autonomous agents to real-world problems
  • Strong experience with Python, FastAPI, LangChain, vector databases, and agent loop architectures
  • Excellent written and verbal communication skills
  • Proficient in Microsoft computer applications


Additional Preferred Skills:
  • Experience creating reusable agent libraries or co-pilots
  • Open-source contributions to AI frameworks or tooling
  • Experience with tools like LangGraph, CrewAI, or Autogen


Our Benefits:

At Frost, we care about your health, your family, and your future and strive to have our benefits reflect that. This includes:
  • Medical, dental, vision, long-term disability, and life insurance
  • 401(k) matching
  • Generous holiday and paid time off schedule
  • Tuition reimbursement
  • Extensive health and wellness programs, including our Employee Assistance Program
  • Referral bonus program + more!

About Frost Bank

Frost Bank is a subsidiary of Cullen/Frost Bankers, Inc., a financial holding company, headquartered in San Antonio, Texas. The company provides a wide range of banking, investments, and insurance services to businesses and individuals in Texas. Frost Bank has over 130 branches across Texas and offers online banking services to its customers. The bank was founded in 1868 by Thomas Claiborne Frost and has been serving Texans for over 150 years.
Learn more about Frost Bank
Size
4,553 employees
Market Cap
$8.3 billion
Industry
Net Income
$331.1 million
Founded
1973
5 Year Trend
+5.1%
NASDAQ

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