Staff Software Engineer - Cloud Infrastructure (AI)

Location: SF Bay Area, United States; Workplace type: Onsite

Company

hirify.global evaluates how AI models perform in real-world workflows using human preferences, open datasets, and research-driven assessments.

What you will do

• Own Arena’s cloud architecture across hosting, compute, networking, and the infrastructure supporting products.
• Define and execute workload strategies across serverless and edge platforms, containers, Kubernetes, and durable execution for long-running AI agent workflows.
• Design workload identity, least-privilege IAM, short-lived credentials, audited secrets management, private connectivity, and egress controls.
• Manage infrastructure as code with clear ownership, CI/CD, and review practices.
• Establish SLOs, monitoring, alerting, on-call, incident response, and post-incident improvement practices.
• Improve infrastructure cost and risk visibility while helping hire and mentor the infrastructure team.

Requirements

• 6+ years of experience building and operating production cloud infrastructure, including ownership of architecture decisions at a fast-growing company.
• Deep hands-on experience with GCP and/or AWS, Kubernetes, and Terraform or a similar infrastructure-as-code tool.
• Strong experience with cloud identity and secrets at scale, including OIDC, workload identity federation, IAM design, secret managers, and key rotation.
• Experience running serverless or edge platforms such as Vercel, Cloud Run, Lambda, or Cloudflare Workers, with judgment about when to use them.
• Experience with queues, workflow engines, or durable execution systems for long-running and asynchronous workloads.
• Track record of leading infrastructure through incidents and converting lessons into lasting improvements.
• Clear written communication and ability to explain trade-offs to engineers and leadership.

Nice to have

• Infrastructure experience for AI products, including sandboxed code execution, model serving, or GPU clusters.
• Experience with data platforms such as Databricks and Postgres at scale.
• Background in cloud security, detection engineering, or security posture tooling.
• Experience as the first infrastructure hire at a fast-growing startup.

Culture & Benefits

• Comprehensive medical, dental, vision, and additional health and wellness benefits.
• Opportunity to work on AI with a small, mission-driven team.
• Culture focused on transparency, trust, craftsmanship, curiosity, impact, and community.
• Equal employment opportunity and commitment to a diverse and inclusive workforce.