Senior ML Platform Engineer - AI Agent Runtime & Platform

Preply; United States; Remote; USD 160,000 - 210,000; Full time

Job summary

Preply is a global education company redefining how people learn. We’re building the Agentic Platform to empower AI-driven tutors and learners, with human-led, AI-enhanced learning at scale.

We’re seeking a Senior ML Platform Engineer to shape production-ready infrastructure for agent prototypes, tackle distributed workflows, and collaborate across Applied Science, Data, Product, Security and Engineering. You’ll write production code, define platform primitives, and help evolve our runtime for

Responsibilities

• Build a durable agent runtime with checkpoints, retries, timeouts, resumability, and deterministic recovery where possible.
• Create a secure tool layer for discovery, registration, invocation and versioning across internal APIs and external services, including MCP where useful.
• Own agent state, context and memory primitives with clear lifecycle, privacy, retention and retrieval semantics.
• Design identity, scoped permissions and human controls for authorization, approvals, escalation and handoffs.
• Develop guardrails for tool access, policy enforcement, argument validation, sandboxing and action limits.

Job description

Preply is a global education company redefining how people learn. We’re building the Agentic Platform to empower AI-driven tutors and learners, with human-led, AI-enhanced learning at scale.

We’re seeking a Senior ML Platform Engineer to shape production-ready infrastructure for agent prototypes, tackle distributed workflows, and collaborate across Applied Science, Data, Product, Security and Engineering. You’ll write production code, define platform primitives, and help evolve our runtime for