Head of Infrastructure

Aaru

$425K — $500K+*
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of experience building and operating large-scale distributed systems
  • Proven track record of significantly reducing system costs or increasing performance metrics
  • Previous leadership experience in engineering teams with ongoing coding contributions
  • Ability to make strategic decisions both carefully and quickly
  • Willingness to work in-person in New York City, prioritizing speed of execution

Responsibilities

  • Own and manage all compute, orchestration, data, and serving infrastructure
  • Design efficient systems capable of running millions of concurrent agents
  • Establish and oversee the infrastructure roadmap focused on cost, reliability, scale, and iteration speed
  • Build and lead the Infrastructure team, including hiring initial members
  • Ensure reliability and manage incident response while keeping on-call load reasonable
  • Optimize cloud spending as a key product constraint and actively reduce costs
  • Collaborate with research and platform teams to rapidly deploy new capabilities to customers

Benefits

  • Equity options in the company
  • Full benefits package including health coverage
  • Opportunity to influence and shape the technical direction of the organization
  • Collaborative environment with direct access to the founders
  • Building a team from the ground up in New York City
Full Job Description
The role

At Aaru, infrastructure sets the limits of the product. A simulation may contain hundreds of thousands of agents, each consuming compute, maintaining state, and making decisions. They must run quickly and cheaply enough that customers can test another scenario while the answer still matters. Every improvement in speed, scale, or cost expands what Aaru can simulate and what customers can use it for.

You will own this system end to end and report directly to the founders. You will set the technical direction, build the infrastructure team, and remain an active engineer: designing core systems and writing production code.

What you will do
  • Own all compute, orchestration, data, and serving infrastructure for our simulations.
  • Design the systems that run millions of concurrent agents efficiently.
  • Set the infrastructure roadmap: cost, reliability, scale, and iteration speed.
  • Build and lead the Infrastructure team. Hire its first dedicated members.
  • Own reliability and incident response, and keep the on-call load humane.
  • Treat cloud spend as a first-class product constraint, and drive it down.
  • Partner with research and platform so new capabilities reach customers fast.
You might be a good fit if

  • You built and operated large-scale distributed systems: schedulers, inference fleets, data pipelines, or similar.
  • You made a large system dramatically cheaper or faster, and you can show the numbers.
  • You have led engineers before, and you still write code every week.
  • You make one-way-door decisions carefully and two-way-door decisions fast.
  • You want to build in person, in New York, at high speed.
Strong candidates may also have

  • Experience with GPU fleets, ML inference at scale, or agentic workloads.
  • Experience at the founding stage of an infrastructure function.
  • Open-source work in the infrastructure space.
Compensation and benefits

Base salary of $425,000-$525,000, equity, and full benefits. Final compensation depends on experience and sits within our internal bands.

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