Staff Infrastructure Engineer, Cloud & Reliability

Vantaca + HOAi•Palo Alto, CA

3d•$200,000 - $260,000•Remote

About The Position

The Staff Infrastructure Engineer will own the reliability, performance, and cost of the production infrastructure behind HOAi’s AI products. The platform supports AI agents that make decisions for property managers and voice agents that speak with residents in real time, making uptime and latency directly consequential to customer interactions. This is a hands-on senior role with substantial ownership. The engineer will set reliability standards for a rapidly growing platform, evolve its AWS architecture and infrastructure-as-code footprint, and help other engineers diagnose unexpected production behavior. The role includes end-to-end responsibility for uptime, observability, production database operations, infrastructure cost efficiency, and runtime security. HOAi was acquired by Vantaca in fall 2024. The company describes itself as growing 100% year over year, with more than 6 million doors on its platform. The role is remote flexible, with office attendance when needed.

Requirements

At least 8 years of experience in infrastructure engineering, SRE, or DevOps.
Deep AWS expertise with production ownership.
Experience using infrastructure as code in production at scale.
Experience operating PostgreSQL in production, including sizing, tuning, replication, and recovery.
Real on-call experience for a system with meaningful uptime expectations.
Demonstrated cost optimization work with measurable results.
Strong distributed-systems debugging skills and ability to reason from symptoms to root cause without relying on a runbook.

Nice To Haves

Experience with cloud security posture, including IAM design, secrets management, and audit support.
Experience supporting real-time or latency-sensitive workloads.
Experience owning Datadog or a comparable APM platform.
Experience at a company that outgrew its original architecture and needed to improve it while continuing to operate it.

Responsibilities

Design and evolve the AWS architecture, infrastructure-as-code footprint, environment topology, and infrastructure standards.
Own uptime and reliability, including autoscaling, failover, graceful degradation, circuit breakers, retry semantics, and disaster recovery with tested restore paths.
Participate in and improve the Sev1/Sev2 incident process, run post-mortems, and follow through on actions to prevent recurrence.
Own monitoring, logging, tracing, and alerting across the stack; build useful dashboards and tune alerts.
Extend observability to token consumption and model spending so AI cost is an operational metric.
Operate PostgreSQL and Redis as production infrastructure, including sizing, topology, replication, read replicas, connection pooling, failover, point-in-time recovery, and version upgrades.
Diagnose database query problems that surface as incidents and partner with product pods on fixes.
Instrument, attribute, and reduce infrastructure spending without compromising reliability.
Own runtime infrastructure security, including IAM and least privilege, network boundaries, secrets management, patching, and vulnerability remediation.
Support security audits and produce evidence of infrastructure controls.
Help engineers debug unexpected production behavior and address infrastructure challenges as the platform grows.

Benefits

Medical, dental, and vision insurance effective on day one.
Unlimited paid time off, with a requirement to take at least one continuous week per year.
401(k) plan with company match.
Remote-flexible work, with office attendance when needed.
Parental leave benefits.
Health Savings Accounts and Flexible Spending Accounts.
Life and short-term disability insurance at no cost to employees.
Telemedicine through Teladoc at no cost to employees.
Employee Assistance Program with access to counseling, financial planning, legal services, and family support resources.
Ongoing industry and professional development training.
Employee-led Culture Committee.