AI Agent Developer

Information Technology Glenview, Illinois

Description

We are looking for a motivated Junior-to-Mid-Level PHP developer to help us build and scale AI systems within our backend ecosystem. In this role, you will work in our in-house PHP agent framework to connect Large Language Models (LLMs) to internal APIs and databases, build RAG pipelines, and develop multi-step agent workflows. Working alongside senior engineers, you will turn business logic into intelligent, automated workflows that reason, call tools, and execute multi-step tasks. This is an in-person role in Glenview, IL. This requires regular on-site work, and relocation assistance is not provided.

Core Responsibilities Agent Implementation:

Build and refine AI agents and multi-step workflows using our in-house agent framework.

API Integration:

Write clean PHP code to connect commercial LLM APIs (OpenAI, Anthropic, Google) to internal REST APIs and enterprise databases, including tool calling and structured outputs.

RAG & Vector Management:

Assist in building and maintaining Retrieval-Augmented Generation (RAG) pipelines using embeddings and vector search.

Testing & Evaluation:

Write test scripts to evaluate agent outputs, benchmark token costs, and track down hallucinations and runaway loops.

Prompt Engineering:

Design, test, and version-control system prompts, function schemas, and tool definitions for chat and batch processing.

Required Technical Skills Programming:

1-3 years of professional experience writing clean, readable, object-oriented PHP.

API Fundamentals:

Strong understanding of RESTful APIs, JSON parsing, and serialization in backend environments.

Databases:

Solid SQL experience (we use Oracle, MySQL/MariaDB, and Postgres).

Version Control:

Proficiency with Git and collaborative code-review workflows.

Preferred Qualifications Hands-on experience with LLM APIs

Experience working with legacy code in a large, established codebase.

We offer our team members: Full Time starting pay: $50-54 based on experience

Yearly performance review

Potential for advancement

Performance-based bonuses throughout the year

Medical/Dental (Blue Cross and Blue Shield PPO Network) & Vision (VSP)

401(k) (Charles Schwab) which includes a matching program

Life & Disability insurance (Lincoln Financial)

Generous Paid Time Off/Sick Pay Program

Continued training & career development

Employee discounts on all the products we sell