Software Engineer 3 Qt Application Development

Monarch Quantum
San Diego, CA

Join our fast-paced and passionate team as a Software Engineer 3 Qt Application Development. 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. Your key responsibilities are as follows:

  • Design, develop, and maintain sophisticated Qt-based desktop applications for instrument control and data visualization.
  • Create intuitive, responsive user interfaces using Qt Widgets and QML for both commercial products and internal tools.
  • Implement real-time data visualization, monitoring dashboards, and control panels for scientific instrumentation.
  • Develop software components that interface with hardware devices and instrument communication layers.
  • Architect and implement scalable, maintainable GUI architectures using Qt's Model-View framework.
  • Write unit tests using Google Test to ensure software reliability and robustness.
  • Use CMake to manage build configurations and dependencies.
  • Optimize application performance for smooth, responsive user experiences.
  • Collaborate with cross-functional teams, including firmware, hardware, and software engineers to understand instrument requirements and translate them into effective user interfaces.
  • Participate in code reviews, provide constructive feedback, and adhere to best coding practices.
  • Maintain clear and well-structured documentation.
  • Work independently and in a team while over-communicating with the manager, project engineer, and the teammates.
  • Use tenacity, patience, self-discipline, and passion for excellence to assure accuracy of execution schedule, data quality/integrity, conformance to company best practices, clarity in communication, and documentation.
  • Use every opportunity to grow competency through mentorship, curiosity, communication, exposure, and initiative.
  • 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).

Experience:

  • A bachelor’s degree in Software Engineering, Computer Engineering, or a related field.
  • Minimum of 5 years of relevant experience, ideally within a startup or technology company.

Skills:

5+ years of professional experience in C++ software development.

  • Strong understanding of modern C++ (C++ 14/17/20).
  • Experience with Qt 6 for GUI development with Qt Widgets & QML.
  • Strong understanding of UI/UX principles and user-centered design.
  • Proficiency with Qt's Model-View architecture and signal-slot mechanism.
  • Knowledge of application deployment and packaging for desktop platforms.
  • Experience with CMake for build and project configuration.
  • Familiarity with unit testing frameworks, preferably Google Test.
  • Ability to debug, profile, and optimize C++ applications.
  • Experience working with version control systems (Git).
  • Strong problem-solving skills and ability to work independently and in a team.
  • Experience with instrument communication protocols (e.g., SCPI, FTDI USB, Ethernet, Serial).
  • 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.

Startup Mindset:

  • You're creative, flexible, and eager to wear multiple hats.
  • You're passionate about building systems from the ground up and comfortable with ambiguity and change.

The expected annual salary range for this position is $125,000-$175,000.

As a full-time employee, you will be eligible for Monarch’s comprehensive benefits package, which includes:

  • 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)

Monarch Quantum is proud to be an equal opportunity employer and does not discriminate on the basis of race, color, citizenship status, national origin, ancestry, sex, sexual orientation, age, religion, creed, physical or mental disability, medical condition, marital status, veteran status or any other characteristics protected under applicable federal, state and local laws.

Posted 2026-03-19

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