Agentic AI Developer

Phase2 Technology; O'Fallon (IL); On-site; USD 99,000 - 225,000; Full time

Job summary

Phase2 Technology in O'Fallon, Illinois, is seeking an Agentic AI Developer who will be a part of the Defense Technology team. The role requires expertise in machine learning to develop and deploy AI solutions that tackle real-world challenges faced by the Department of War. Candidates should have experience with Large Language Models and necessary programming skills.

The position offers a comprehensive salary range from $99,000 to $225,000 annually and an opportunity to contribute to mission-critical projects within a talented team dedicated to advanced AI technologies.

Qualifications

• 3+ years of experience in Machine Learning engineering, data science, or software development.
• Ability to obtain a Secret clearance.
• Experience with embedding models and vector databases.

Responsibilities

• Train, test, deploy, and maintain machine learning models.
• Define direction for mission-critical solutions using ML.
• Collaborate with data engineers and product owners.

Skills

Machine Learning engineering

Data science

Programming languages (Python, Java)

Software design patterns

Embedding models

AI safety and responsible AI practices

Agent planning and reasoning

Education

Bachelor's degree

Tools

Large Language Models (LLMs)

Retrieval-Augmented Generation (RAG)

Job description

Job Number: R0241538

Agentic AI Developer

Opportunity

As an experienced engineer, you know that machine learning is critical to understanding and processing massive datasets. Your ability to conduct statistical analyses on business processes using ML techniques makes you an integral part of delivering a customer-focused solution. We need your technical knowledge and desire to problem‑solve to support critical advancements in the Department of War. As a machine learning engineer on our Defense Technology team, you'll train, test, deploy, and maintain models that learn from data to create real‑world, mission‑critical impacts.

In this role, you'll own and define the direction of mission‑critical solutions by applying best‑fit ML algorithms and technologies and through the development, deployment, and management of AI agents. You'll be part of a talented team of machine learning engineers across the company and collaborate with data engineers and product owners to deliver world‑class solutions to develop cutting‑edge AI agents capable of solving our military's most challenging missions. Your skills and extensive technical expertise will guide clients as they navigate the landscape of ML algorithms, tools, and frameworks.

Work with us to solve real‑world challenges and define ML strategy for the Department of War.

Required Qualifications

• 3+ years of experience within Machine Learning engineering, data science, data engineering, or software development
• Experience developing applications using Large Language Models (LLMs)
• Experience with programming languages such as Python or Java
• Experience with software design patterns
• Knowledge of embedding models, vector databases, and semantic search
• Knowledge of AI safety, guardrails, and responsible AI practices
• Knowledge of agent planning, reasoning, and execution loops
• Ability to obtain a Secret clearance
• Bachelor's degree

Preferred Qualifications

• Experience working with Department of War data or on systems with advanced cyber security requirements
• Experience with Retrieval‑Augmented Generation (RAG) architectures
• Experience with LangGraph
• Experience with model evaluation and AI quality metrics
• Secret clearance
• Master's degree in AI or a related field

Security Clearance

Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information.

Compensation

Salary range: $99,000.00 to $225,000.00 (annualized USD).

This posting will close within 90 days from the Posting Date.

Equal Opportunity

All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.