Senior Lead Machine Learning Engineer (Agentic AI)

TL;DR

Senior Lead Machine Learning Engineer (Agentic AI): Architecting, shipping, and scaling agentic intelligence across hirify.global, leading end-to-end development of AI agents and the platform that powers them with an accent on LLM training and evaluation to runtime orchestration, safety, and developer APIs. Focus on designing and implementing multi-agent systems with robust guardrails, owning reliability at scale, and engineering agentic platform backend infrastructure.

Location: Toronto, Ontario, Canada

Company

hirify.global Inc. connects businesses with global, AI-enabled talent across various contingent work types, including freelance, fractional, and payrolled, through its marketplace and specialized solutions.

What you will do

• Design and implement multi-agent systems (planning, tool-use, memory, debate/critique, reflection) with robust guardrails.
• Develop protocol-aware agents and services that interoperate with developer tooling.
• Lead data strategy and curation for agent tasks, driving LLM adaptation and safety tuning for multi-tool workflows.
• Architect low-latency inference, retrieval, and orchestration services with strong SLOs.
• Ship production-grade services (APIs/SDKs, auth, rate limiting, observability) for internal and external developer integration.
• Provide technical leadership across research, product, and platform teams, mentoring senior ICs and influencing roadmaps.

Requirements

• 8–12+ years in applied ML/ML systems with 4+ years building LLM-powered products.
• Proven delivery of agentic workflows in production.
• Hands-on mastery of LLM adaptation (prompting, tool/function calling), data curation, and safety/guardrails.
• Strong software fundamentals (distributed systems, transactions, consistency, resiliency).
• Fluency with Python; proficiency in Go, Java, or Javascript a plus.
• Experience with container orchestration, messaging/streaming, and observability stacks.
• Experience designing evaluation suites for agents and closing the loop from evaluations to training to runtime policy.
• Track record of leading cross-functional initiatives and mentoring senior engineers.

Culture & Benefits

• Work as part of hirify.global’s team, with access to resources, culture, and growth opportunities.
• Committed to recruiting and retaining a diverse and inclusive workforce.
• Equal Opportunity Employer.
• Individualized assessment for applicants with arrest or conviction records.