Senior Software Engineer, Instrument Control

Senior Software Engineer, Instrument Control

San Diego, CA

We are looking for an experienced and ambitious instrument control software engineer to join our instrument software team. We’re developing a next‑generation system built on a modern, tiered architecture using .NET C# on Linux. Hardware components are integrated through standard communication protocols and emphasize orchestration over low‑level control. The system also includes capabilities for cloud connectivity, secure software updates, and performance monitoring.

Note : While some responsibilities involve supporting our current product line, the primary focus is on delivering the new platform.

Responsibilities

• Design, develop, and maintain services and libraries for a tiered instrument control architecture on Linux using .NET (C#), with an emphasis on reliability, safety, and clear separation of concerns.
• Build a modern UI for instrument operation, status, alerts, calibration, and service workflows; contribute reusable components and MVVM patterns.
• Integrate cloud connectivity for data transfer, configuration, logs, fleet health, and remote diagnostics.
• Capture and query metrics and logs to drive observability, performance tuning, and field reliability.
• Create hardware simulators, fakes, and automated integration tests to enable CI for device workflows without physical hardware.
• Improve operational excellence via health checks, watchdogs, software updates, safety interlocks, failure‑mode handling, and on‑instrument diagnostics.
• Provide targeted sustaining support for the existing product line (triage, small fixes, backports) while prioritizing new‑platform delivery.
• Document software designs, code, and processes for clarity and maintainability.
• Collaborate across engineering, data science, and image analysis teams to translate complex requirements into well‑integrated solutions.

Qualifications

Baseline skills / experiences / attributes :

Ideally, you also have these skills / experiences / attributes (but it’s ok if you don’t!) :

The estimated base salary range for this role based in the United States of America is : $130,000 - $160,000. Compensation decisions are dependent on several factors including, but not limited to, level of the position, an individual’s skills, knowledge and abilities, location where the role is to be performed, internal equity, and alignment with market data. Additionally, all full‑time employees are eligible for our discretionary bonus program and equity as part of the compensation package.

Quantum‑Si does not accept agency resumes.

Quantum‑Si is an E‑Verify and equal opportunity employer regardless of race, color, ancestry, religion, gender, national origin, sexual orientation, age, citizenship, marital status, disability or Veteran status. All your information will be kept confidential according to EEO guidelines.

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