Sr. AI & Machine Learning Engineer

Post Holdings Inc. is seeking a Senior AI & Machine Learning Engineer to design, build, and operationalize AI-powered solutions for enterprise use. The role focuses on production delivery of agentic workflows, copilots, and machine learning systems, working closely with business and technical teams to establish standards and scale AI capabilities.

Responsibilities

• Develop predictive, optimization, forecasting, recommendation, computer vision, and generative AI applications.
• Design and implement agentic workflows, copilots, and intelligent applications.
• Convert high-value business opportunities into scalable production solutions.
• Partner with business stakeholders to define requirements and measure outcomes.
• Design, build, test, and maintain software applications that integrate machine learning and AI capabilities.
• Develop APIs, services, orchestration layers, and enterprise integrations.
• Build user-facing applications that enable employees to interact with AI systems.
• Create reusable components and frameworks to accelerate AI delivery across the enterprise.
• Develop model training, deployment, evaluation, monitoring, and retraining workflows.
• Establish engineering and CI/CD standards for AI application development.
• Implement model observability, performance monitoring, and operational controls.
• Help ensure AI systems remain reliable, secure, maintainable, and cost effective.
• Collaborate with Product Managers, Data Scientists, Architects, Security, and Platform teams.
• Contribute to enterprise AI standards, approved development patterns, and governance processes.
• Evaluate and prototype emerging AI technologies, translating promising advances into practical, scalable business solutions.
• Support technology adoption by recommending where new AI capabilities fit within architecture, roadmap, and business priorities.
• Establish repeatable practices that enable AI delivery at scale.
• Mentor engineers and elevate AI engineering capabilities across the organization.

Requirements

• Bachelor’s degree in Computer Science or a related technical field.
• 7+ years of software engineering experience.
• Experience building production applications used by business users.
• Strong proficiency in Python.
• Experience designing APIs, services, integrations, and distributed systems.
• Experience deploying machine learning models into production environments.
• Experience with cloud platforms such as Azure.
• Strong software engineering fundamentals, including testing, code quality, version control, and system design.

Technologies

• Python
• Azure
• Azure OpenAI
• OpenAI
• Anthropic
• React
• TypeScript
• Snowflake
• Databricks
• Fabric

Preferred

• Master’s degree or PhD in Engineering, Computer Science, or a related technical field.
• 5+ years of experience with data structures/algorithms.
• 3+ years of experience in a technical leadership role leading project teams and setting technical direction.
• Experience building generative AI applications using Azure OpenAI, OpenAI, Anthropic, or similar platforms.
• Experience with AI agents, orchestration frameworks, and Retrieval-Augmented Generation (RAG).
• Experience with MLOps practices and machine learning lifecycle management.
• Experience with React, TypeScript, or modern web application frameworks.
• Experience with enterprise data platforms such as Snowflake, Databricks, or Fabric.
• Experience working in manufacturing, supply chain, consumer goods, logistics, or enterprise operations.