Product Engineer

About Aaru

Aaru builds simulations of human behavior using AI agents that represent plausible people capable of making decisions within modeled environments. Companies and institutions use these simulations to test consequential choices—from product launches and pricing decisions to strategic communications and policy changes—before committing resources.

Building useful simulations requires more than generating plausible text. Populations must represent real people and groups; predictions must be calibrated; simulations must remain coherent as conditions change; and products must make evidence legible enough to support real decisions.

About Product Engineering

Product Engineering transforms Aaru's simulation capabilities into products customers can use independently and repeatedly. The team builds workflows, interfaces, integrations, and decision-ready artifacts that make technically sophisticated systems feel clear and dependable.

Work is organized around durable product domains including simulation setup, question and experiment types, follow-up and continuous simulations, analysis and reporting, reusable customer templates, collaboration, and external integrations.

This is not a frontend-only role. Product Engineers own user outcomes across the stack. Projects span observing customer decision processes, product and systems design, backend or orchestration primitives, evaluating model behavior, and measured production rollouts.

The Role

As a Product Engineer, you will take ambiguous, consequential user problems from first conversation to reliable product capability. You will work closely with Product, Design, Deployment, Platform Engineering, Simulation Engineering, and Research teams.

You will understand both user problems and system details well enough to make good tradeoffs without handing ownership away at either boundary. You will prototype quickly but distinguish compelling demos from finished products. Shipped systems must be understandable, observable, secure, maintainable, and robust to the variability of AI-generated behavior.

Key Responsibilities

• Own product work end-to-end: understand problems, define minimal viable solutions, design systems, implement, roll out, measure, and support in production
• Work directly with users and customer-facing teams to observe real decision workflows, identify recurring needs, and distinguish durable product opportunities from one-off requests
• Design and implement backend systems that handle simulation configuration, execution, analysis, and continuous updates
• Build interfaces and workflows that translate complex simulation capabilities into clear, actionable customer experiences
• Evaluate model behavior and ensure simulation coherence across different conditions and use cases
• Collaborate across engineering disciplines to create or improve shared primitives rather than building fragile workarounds

About the Team

Aaru is a small, in-person team in New York that works with urgency, high ownership, and intellectual honesty. The company expects people to surface inconvenient evidence, change their minds quickly, and carry important work all the way to completion.

Salary Disclosure: This listing shows an editorial market estimate of $80K–$130K USD/year based on comparable remote product engineering roles. This is not employer-provided compensation and may vary significantly by experience, location, and qualifications.