Principal Software Engineer

Monarch Quantum•San Diego, CA
•$195,000 - $235,000

About The Position

Join our fast-paced and passionate team as a Principal Software Engineer on our Robotic Automation team. As we scale, you will be instrumental in building our foundation from the ground up. This is a dynamic, hands-on role for a self-starter who thrives in a fluid startup environment. You'll have the opportunity to work on cutting edge technologies, work closely with leadership, and develop and implement engineering practices that support our mission and growth.

Requirements

  • A bachelor's degree in Software Engineering, Computer Engineering, Computer Science, or a related field.
  • Minimum of 8+ years of relevant software engineering experience, with a track record of technical leadership on complex systems.
  • 8+ years of professional experience in C++ software development, and strong professional experience in Python.
  • Strong understanding of modern C++ (C++17/20) and Python software design.
  • Experience architecting distributed or multi-system software, ideally involving fleet management, data management, or manufacturing execution systems.
  • Experience designing systems that communicate with and manage robotic or automated hardware stations.
  • Strong database experience (SQL or similar) for systems involving logging, telemetry, specs, and results tracking.
  • Experience with unit testing frameworks (Google Test for C++, pytest for Python) and a strong commitment to test coverage.
  • Experience with CMake for build and project configuration, and familiarity with Python packaging and dependency management.
  • Ability to debug, profile, and optimize software across both C++ and Python codebases.
  • Experience working with version control systems (Git).
  • Strong problem-solving skills with the ability to work independently, lead technical initiatives, and mentor other engineers.
  • Familiarity with multi-threaded programming and concurrency in C++.
  • Knowledge of software best practices, including design patterns, SOLID principles, and performance optimization.
  • Experience working in an agile development environment.
  • This position requires access to export-controlled information. Employment is contingent upon the applicant being a U.S. person as defined by 8 U.S.C. § 1324b(a)(3).

Nice To Haves

  • Experience working in a startup or fast-paced technology company environment is a plus.
  • Experience with robotics, industrial automation, or manufacturing systems is a strong plus.

Responsibilities

  • Lead the architecture and development of our fleet management, robotics data management, and manufacturing execution software (MES) systems, working directly with our robotic automation stations.
  • Design and build software in C++ and Python that supports station monitoring, configuration management, version management, telemetry and logging, and specs/results tracking.
  • Set technical direction for how our automation stack (orchestration, scripts, device control, algorithms, motion planning, world modeling) integrates with fleet, data management, and MES systems.
  • Drive architectural decisions on system interfaces, data flow, and communication between robotic stations and higher-level management systems.
  • Mentor and provide technical guidance to other engineers on the team, raising the bar on code quality, design, and engineering practices.
  • Write and maintain unit tests to ensure software reliability and robustness.
  • Manage build configurations and dependencies using CMake and/or Python packaging tools.
  • Collaborate with cross-functional teams, including robotics, firmware, hardware, and software engineers, to align on system design and delivery.
  • Lead and participate in code reviews, provide constructive feedback, and hold the team to strong coding practices.
  • Own and maintain clear, well-structured technical documentation for the systems you design and build.
  • Work independently and in a team while over-communicating with the manager, project engineer, and teammates.
  • Use tenacity, patience, self-discipline, and passion for excellence to assure accuracy of execution schedule, data quality and integrity, conformance to company best practices, clarity in communication, and documentation.
  • Use every opportunity to grow your own competency and the team's, through mentorship, curiosity, communication, exposure, and initiative.

Benefits

  • Medical, Dental, and Vision insurance
  • Fidelity 401(k) plan with 4% employer matching
  • 20 paid time off (PTO) days per year
  • 13 paid company holidays
  • 9/80 work schedule (every other Friday off)
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