Infrastructure Engineer

📋 Job Overview

MatX is a small engineering team designing a custom chip. The work is compute-heavy and tooling-heavy: hermetic builds, large verification jobs, custom developer environments, a self-hosted CI fleet, and a steadily growing collection of internal services that engineers depend on every day. We're hiring a second infrastructure engineer to broaden our capacity and add depth in areas adjacent to what we already have.

🏢 About MatX

We're a small engineering team designing a custom chip. The work is compute-heavy and tooling-heavy: hermetic builds, large verification jobs, custom developer environments, a self-hosted CI fleet, and a steadily growing collection of internal services that engineers depend on every day. The infrastructure that supports all of this — CI/CD, compute, shared filesystems, networking, internal tooling — already exists and has a system owner.

🎯 The Role

Day to day, the work spans Linux and networking work (the core of the role), diagnosing and fixing issues across the OS, network, and cloud stack, reasoning about routing, DNS, firewalls, VPCs, private connectivity, and trust boundaries, tracking down permission issues and performance problems, improving, hardening, and extending the network and host configuration, building tools and integrations, writing internal tools, scripts, and small services, picking up unfamiliar protocols and codebases and shipping working integrations, supporting the infrastructure stack, pairing with the system owner on compute, CI, shared storage, developer VMs, and the Terraform-managed cloud setup, executing and reviewing production changes carefully, and helping engineers onboard new hires and debug their environment problems.

✅ Key Responsibilities

• Diagnose and fix issues across the OS, network, and cloud stack
• Reason about routing, DNS, firewalls, VPCs, private connectivity, and trust boundaries
• Track down permission issues and performance problems
• Improve, harden, and extend the network and host configuration
• Build tools and integrations
• Write internal tools, scripts, and small services
• Support the infrastructure stack
• Execute and review production changes carefully
• Help engineers onboard new hires and debug their environment problems

📌 Required Qualifications

• Deep Linux systems knowledge
• Deep networking knowledge
• Strong generalist instincts
• Infrastructure-as-code experience on a major cloud
• Conservative about new patterns
• Threat-modeling instincts for shared infrastructure
• Operational thinking
• Surgical git workflow

⭐ Desirable Experience

• GCP depth specifically: IAM, managed compute, identity-aware proxies
• Bazel and remote build/cache internals; buildbarn or equivalent
• Operating batch compute or job schedulers — HPC, Slurm, Nomad, Kubernetes batch, or similar
• Working understanding of token-based auth and cloud identity flows
• Rust or Python scripting for tooling
• EDA/semiconductor tool chain familiarity (Synopsys, Cadence)
• Managing fleets at the OS level: policies, images, package distribution
• Understanding of hardware architecture
• Ability to read build rules, Rust error messages, or CI workflows

🎁 Benefits

• 4 weeks PTO (accrued) + 12 company Holidays + up to 3 weeks remote work
• Company-subsidized Medical (Kaiser or Anthem) for employees & dependents, Guardian Dental and Vision insurances for employee & dependents, and life insurance (employee only), plus HSA and FSA offerings via Lively
• Choose from Roth IRA or 401K (or both) retirement plans with up to 5% company contribution

🛂 Visa & Eligibility

Visa sponsorship is not mentioned in the job description.