Applied Research Engineer — AI Simulation at Scale

Aaru; New York (NY); On-site; USD 120,000 - 200,000; Full time

Job summary

Aaru seeks a Research Engineer in New York City to translate research ideas into production-grade simulations. You will build robust, reusable code for audience generation, world modeling, and response prediction, forming the core of our product.

You will design abstractions, own evaluation infrastructure, and ensure simulations scale efficiently while collaborating with cross-functional teams to ship ML-powered features.

Qualifications

• 3+ years hands-on experience building ML/AI systems (research or applied).
• Experience with Large Language Models in production.

Responsibilities

• Productionize the core simulation loop: audience generation, world modeling, response prediction.
• Design reusable abstractions: agent and population objects, simulation contracts and interfaces.
• Build and own evaluation and accuracy infrastructure.
• Make simulations fast and cost-effective at scale.
• Collaborate with Simulation Research to hybrid LLM + classical architectures.
• Create workflows to deploy and stand up client simulations.
• Turn raw agent output into decision-ready artifacts for customers.
• Maintain engineering quality across a fast-moving codebase.

Skills

ML/AI systems

Large Language Models

Experimentation

Cross-functional

Production code

Job description

Aaru seeks a Research Engineer in New York City to translate research ideas into production-grade simulations. You will build robust, reusable code for audience generation, world modeling, and response prediction, forming the core of our product.

You will design abstractions, own evaluation infrastructure, and ensure simulations scale efficiently while collaborating with cross-functional teams to ship ML-powered features.