Engineer III - AI

Frost; San Antonio (TX); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) matching

Generous holiday and paid time off

Health and wellness programs

Job summary

A leading bank in Texas is seeking an innovative Engineer III – AI to design intelligent systems and workflows. This role involves leading technical efforts on AI reliability and collaborating with product leaders. The ideal candidate should have over 4 years of experience with enterprise-grade AI and ML systems, along with strong skills in Python and API orchestration. Join an organization dedicated to exceptional banking services and fostering a healthy work environment.

Qualifications

• 4+ years of experience with enterprise-grade AI/ML systems.
• Deep understanding of event-driven design and API orchestration.
• Experience leading teams in applying LLMs and autonomous agents.
• Prompt engineering and tool orchestration proficiency.
• Experience leading teams with LLMs and autonomous agents.
• Strong Python, FastAPI, LangChain, vector DBs, and agent loop architectures.
• Excellent written and verbal communication.
• MS Office proficiency.

Responsibilities

• Design and architect intelligent systems and workflows leveraging AI.
• Lead technical efforts on AI reliability, bias mitigation, and drift detection.
• Mentor engineers in best practices for LLM prompting and tool design.
• Collaborate with product and design to define outcomes and metrics.
• Act as a system designer and workflow architect, not just code.
• Optimize performance with caching, throttling, and fallback strategies.
• Mentor engineers in LLM prompting, agent decomposition, and tooling.
• Uphold Frost values in all actions to achieve all-win outcomes.

Skills

Python

FastAPI

LangChain

agent loop optimization

communication skills

Leadership

Communication

Education

Bachelor’s in Computer Science, Data Science, or related field

Tools

vector databases

LangGraph

CrewAI

Autogen

LangGraph

CrewAI

Autogen

Job description

The candidate for this exciting opportunity will need to be living in the San Antonio, Texas area. This role will require 3 to 4 days per week at the One Frost Corporate Campus office. Frost will help with relocation costs to move to San Antonio, Texas if one is not currently living in San Antonio, Texas.

Immigration Sponsorship: Unfortunately, we currently are not able to sponsor or transfer a sponsorship to Frost. This includes H-1B, TN, OPT, O-1, H4EAD, F-1, L-1.

Job Description

It’s about innovation and creation.

Are you described as someone with an inquisitive mind and an innovative personality? Are you fascinated by the power of AI and how it can help make lives better? Does solving problems and ensuring top-quality systems excite you? If so, being an Engineer III – AI with Frost could be for you.

At Frost, it’s about more than a job. It’s about having a flourishing career where you can thrive, both in and out of work. At Frost, we’re committed to fostering an environment that reflects our values and encourages team members to be the best they can be. In joining our adaptable, integrity-driven team, you’ll become part of Frost’s over 150-year legacy of providing unparalleled banking services.

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
• 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

This includes:

• Medical, dental, vision, long-term disability, and life insurance
• 401(k) matching
• Generous holiday and paid time off schedule
• Extensive health and wellness programs, including our Employee Assistance Program

Since 1868, Frost has dedicated their expertise to provide exceptional banking, investment, and insurance services to businesses and individuals throughout Texas. Frost is one of the 50 largest U.S. banks by asset size and is a leader in banking customer satisfaction. At Frost, it’s about being part of something bigger. If this sounds like you, we encourage you to apply and see what’s possible at Frost.