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Senior/Lead AI/ML Engineer

Posted 2 months ago

OfficeBuenos Aires

At Ryz Labs we are looking for a Senior / Lead AI/ML Engineer to design and ship production-grade conversational AI agents with advanced tool use and orchestration capabilities. This is a hands-on role where you’ll work closely with the internal team to build, scale, and harden real-world LLM systems in a production AWS environment.

You’ll be embedded with the team, contributing directly to architecture decisions and implementation.

Key Responsibilities

  • Design and implement LLM-powered conversational agents in production
  • Build robust agent orchestration systems, including:
    • State management
    • Pause/resume flows
    • Journey and mode routing
    • Failure handling and recovery
  • Develop and integrate tooling via MCP or gateway-style architectures, including:
    • Schema design
    • Authentication & authorization
    • Idempotency handling
    • Auditability
  • Create and maintain custom evaluation frameworks for LLM performance and reliability
  • Operate and deploy systems in a production AWS environment
  • Collaborate closely with internal stakeholders in an embedded delivery model

Required Qualifications

  • Proven experience shipping production LLM agents with tool use
  • Strong expertise in Python
  • Hands-on experience with:
    • Agent orchestration patterns (state machines, routing, retries, etc.)
    • Tool integration frameworks (MCP or similar gateway approaches)
  • Experience working in production AWS environments, including:
    • EKS
    • Lambda / EventBridge
    • IAM
    • Bedrock / Agent runtimes
    • Logging and monitoring systems
  • Experience with at least one LLM observability/evaluation platform in production (e.g., Arize AX, Langfuse, Phoenix)

Preferred / Nice to Have

  • Experience with AWS Bedrock and AgentCore (Runtime + Gateway)
  • Familiarity with Strands, or ability to ramp quickly from LangGraph / LangChain
  • Experience implementing governed memory systems
  • Background in regulated environments (fintech, banking, etc.)
Job details
Workplace
Office
Location
Buenos Aires

Unlock the power of LatAm's elite nearshore talent with Ryz Labs. Our top-tier staff augmentation services provide access to the brightest minds in software development, IT, sales, ops, and CS. Elevate your team and achieve unparalleled results with our nearshore experts.

Key team members

Sam Nadler

Sam Nadler

Debora Lopez Minetti

Debora Lopez Minetti

Juli Miranda

Juli Miranda

Victoria Abril Blaustein

Victoria Abril Blaustein

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