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Raylu Ai

Posted 3 months ago

Open

Senior AI Engineer

New York CityOn-siteFull-time

AI Summary

Senior AI Engineer focused on building and shipping LLM-driven agent systems, including multi-step planning, tool use, memory, and retrieval. Designs end-to-end workflows, evaluates models, and drives reliability and safety.

About this role

Position Summary

We’re hiring a product-oriented Senior AI Engineer who loves tinkering with LLMs and shipping real agent systems. We spend less time on fine-tuning and more on orchestration, evaluation, and reliability—so agents do real work safely, quickly, and repeatedly.

What we’re looking for

  • Agentic systems: Function/tool calling, multi-step planning, routing, memory, and retrieval.

  • Engineering first: You can wire up services, craft eval harnesses, and debug latency/cost at scale.

  • LLM breadth: Comfortable comparing models/hosts, prompt strategies, and guardrail techniques.

  • Product focus: You instrument outcomes, run A/Bs, and iterate to improve task success rates.

  • Opinionated: Deep level of understanding of the technological landscape, making both high level system and granular code design decisions based on understanding rather than preference - diving deep on unknown patterns in order to build the best product.

Responsibilities

  • Design, build, and productionize agent workflows end-to-end (APIs, tools, evals, monitoring).

  • Create safety, cost, and latency controls; build dashboards and alerts for reliability.

  • Partner with product/design to invent new interaction patterns and ship them fast.

  • Document patterns and mentor engineers on best practices for LLM-powered features.

Nice to have

  • Experience with workflow engines (e.g., Temporal), comfort in full stack engineering

Logistics:

  • Compensation: $165K - $230K salary, $100K-200K equivalent in new hire equity (4 year vest)

  • Location: New York City. We are a fully in-office team working out of Midtown Manhattan Monday through Friday. We allow for WFH days when anyone is traveling, but we do not allow for permanent remote work.

  • Benefits:

    • Generous health, dental, and vision insurance

    • 401k with 3% automatic contribution (no vesting)

    • Paid Lunches

    • Wellness and Citi Bike benefit

    • Unlimited PTO

Skills

A/b TestingAgent WorkflowsAPI DesignCost OptimizationDebugging Distributed SystemsEval HarnessesFull-stack EngineeringGuardrail TechniquesLatency OptimizationLLM OrchestrationMemory And Retrieval SystemsModel ComparisonMonitoring And DashboardsMulti-step PlanningPrompt StrategiesRoutingSystems DesignTool-callingWorkflow Engines (Temporal)

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