As an AI Platform Engineer, you will design, build, and operate the foundational infrastructure layer that powers EY's AI, GenAI and Agentic AI solutions in production. You will own the platform that AI Engineers build on, including AI gateways, agent deployment pipelines, and the observability stack that keeps AI solutions performant, secure, and cost-efficient at enterprise scale. Beyond platform operations, you bring hands-on capability to build and deploy AI agents.

The opportunity

You will work across complex client engagements building and operationalising AI platform infrastructure that underpins enterprise agentic AI solutions. Partnering with AI Architects and AI Engineers, you will own the MLOps and LLMOps discipline, from CI/CD pipelines and model registries to telemetry, evaluation guardrails, and responsible AI controls.

This job posting relates to an existing vacancy within our organization.

Your key responsibilities

• Design and manage enterprise AI platform infrastructure, including multi-agent systems, orchestration frameworks, AI Gateways, telemetry, monitoring, guardrail, and agent runtime environments.
• Deploy and operationalise Generative/Agentic AI solutions behind scalable, high-availability architecture, including platform-level support for agentic protocols (e.g. MCP server operations, A2A, LLM proxies), enabling AI Engineers to develop and deploy agent-based solutions.
• Build and deploy AI agents and agentic workflows using AI agent frameworks.
• Implement CI/CD automation, reusable IaC to standardize deployment, best practices for MLOps and LLMOps across experimental and production environments.
• Build AI governance, risk management, and responsible AI controls for autonomous and semi-autonomous systems.
• Contribute to EY thought leadership, assets, and go-to-market offerings in agentic and generative AI.
• Mentor junior team members and contribute to EY AI assets, accelerators, delivery standards, and go-to-market offerings in AI/ML, agentic and generative AI

Skills and attributes for success

• Deep experience designing and deploying AI and agentic systems in enterprise environments across major cloud platforms, with practical ability to build AI agents and agentic workflows alongside AI Engineers.
• Experience with AI governance, model risk management, and regulatory considerations in complex or regulated industries.
• Adapts quickly to fast-moving environments with frequent updates in AI frameworks, agentic tool patterns, LLM capabilities, and cloud platform services.

To qualify for the role, you must have

• A degree in Computer Science, Engineering, or a related field.
• 5-8+ years of hands-on background in infrastructure, platform engineering, or DevOps, with direct experience supporting AI workloads in production.
• Proficiency in Python and Infrastructure-as-Code tools such as Terraform, with deep experience in containerisation and orchestration platforms (Docker, Kubernetes).
• Working knowledge of major cloud AI ecosystems and open-source platforms
• Working knowledge of agentic AI monitoring and observability suite
• Hands-on experience building and deploying AI agents using open frameworks such as LangGraph, CrewAI, proprietary cloud-based agentic platforms.
• Deep experience in API integration and development.
• Consulting or professional services experience is strongly preferred

What we look for

We're interested in passionate leaders with a strong vision and a desire to stay on top of trends in the IT Advisory space. If you have a strong passion for helping businesses achieve their IT strategy, this role is for you.

What we offer

We offer a competitive compensation package where you'll be rewarded based on your performance and recognized for the value you bring to our business. In addition, our Total Rewards package includes medical and dental coverage, both pension and 401(k) plans, a minimum of 15 days of vacation plus ten observed holidays and three paid personal days, and a range of programs and benefits designed to support your physical, financial and social well-being. Plus, we offer:

• The opportunity to manage a portfolio of talent within a designated service line
• A collaborative environment where everyone works together to create a better working world
• Excellent training and development prospects, both through established programs and on-the-job training
• An excellent team of senior colleagues, dedicated to managing and varying your workload

EY reports salary ranges in accordance with applicable provincial pay transparency legislation. Individual salaries within the anticipated salary ranges noted below are determined through a wide variety of factors including but not limited to internal equity, education, relevant experience, knowledge, and applicable skill sets.

• • Toronto : $110,000 to $160,000