Senior Test Infrastructure & Reliability Engineer, Photonics

PsiQuantum; United States; Remote; USD 180,000 - 280,000; Full time

Benefits offered by this job

Health coverage

401(k) with company match

Equity grants

Paid time off

Job summary

PsiQuantum in Palo Alto, CA (remote) seeks a Senior Test Infrastructure & Reliability Engineer, Photonics, to own the data pipeline and ensure reliability of test systems feeding the central data platform as part of the Photonics Integration team.

You will build fleet-wide observability, define alerts, and work with test software and data platform teams to prevent data-loss incidents while improving hardware test environments.

Qualifications

• BS in Computer Science, Electrical Engineering, or related field with 5+ years of relevant experience.
• Experience building and operating reliable distributed systems or data pipelines.
• Strong Python skills, comfortable with async and multi-process/service architectures.
• Experience with observability stacks (e.g. Grafana, Loki) and designing effective alerts.
• SQL proficiency for ad hoc investigation against production data.
• Track record of root-causing distributed-system issues from fleet-scale evidence.

Responsibilities

• Own the data pipeline connecting test stations to the central data platform: measurement uploaders, run creation, and run-to-test-request linking.
• Build fleet-wide observability: dashboards, log pipelines, and metrics for station and data-pipeline health.
• Define and maintain alerting/guardrails that catch regressions early before data-loss incidents.
• Harden shared infrastructure against common distributed-systems failure modes.
• Investigate and root-cause fleet-wide reliability incidents using logs and API data.
• Partner with the data platform team to close gaps between station software and central system of record.

Skills

Python

Async programming

Multi-process architectures

Observability tooling

SQL

Incident response

Education

BS in Computer Science or Electrical Engineering

Tools

Grafana

Loki

Job description

Senior Test Infrastructure & Reliability Engineer, Photonics at PsiQuantum, Palo Alto, California (remote). A senior-level full time position in the 3200 - Photonics Integration team, listed under hardware engineering.

Job Summary

As an integral part of the team developing a photonic quantum computer, the Senior Test Infrastructure & Reliability Engineer will own the data pipeline and reliability of the systems that carry test results from our fleet of electro-optical test stations into our central data platform, making sure that when something breaks, we know about it immediately.

Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to [e-mail] .

Actual compensation may vary outside of these ranges and is dependent on various factors including, but not limited to, a candidate's qualifications, relevant education and training, competencies, experience, geographic location, business needs, and internal equity. Your recruiter can share more details about the salary range applicable to your location during the hiring process.

• Zone 1 - Bay Area and NYC
• Zone 2 - Examples include Los Angeles and Washington DC
• Zone 3 - Examples include Austin, Chicago, and Sacramento
• Zone 4 - Examples include Nashville and Phoenix/Tempe and many remote locations

This position includes the following benefits: competitive health coverage for you and your dependents, 401(k) with company match, equity grants, access to financial wellness tools and planning resources, wellness benefits, family support programs, life and disability insurance, paid leave programs, company-designated paid holidays, discretionary time off (DTO), and an end-of-year company shutdown. Some of these benefits have eligibility requirements and may vary based on location, role, or employment status. Many of these benefits are subsidized or fully paid for by the company.

Responsibilities

• Own the data pipeline connecting test stations to the central data platform: measurement uploaders, run creation, and run-to-test-request linking.
• Build fleet-wide observability: dashboards, log pipelines, and metrics for station and data-pipeline health.
• Define and maintain alerting/guardrails that catch regressions early (upload latency, stale heartbeats, clock drift) before they become data-loss incidents.
• Harden shared infrastructure (uploader processes, heartbeat reporting, notification integrations) against common distributed-systems failure modes.
• Investigate and root-cause fleet-wide reliability incidents using logs, timestamps, and API data, distinguishing station-side, server-side, and network/clock causes.
• Partner with the data platform team and test software engineers to close gaps between station software and the central system of record.

Requirements

• BS in Computer Science, Electrical Engineering, or related field with 5+ years of relevant experience (MS with 3+ years, or PhD with 0-2 years).
• Experience building and operating reliable distributed systems or data pipelines.
• Strong Python skills, comfortable with async and multi-process/service architectures.
• Experience with observability stacks (e.g. Grafana, Loki) and designing effective alerts.
• SQL proficiency for ad hoc investigation against production data.
• Track record of root-causing distributed-system issues from fleet-scale evidence.
• Experience in lab, manufacturing, or hardware test environments.
• On-call or incident-response experience.