Senior Software Engineer, C++ and Qt

Job overview

The Senior Software Engineer role is onsite in San Diego, CA, with an expected annual salary range of $125,000–$175,000. Monarch Quantum describes a hands-on startup environment where the engineer will help build the company’s foundation and support its mission and growth. The engineer develops software for instrument communication, graphical interfaces, and hardware-connected applications. The work supports reliable commercial and internal tools through testing, collaboration with firmware and hardware teams, code review, and clear documentation.

What you'll do

• Develop and maintain C++ software for instrument communication and GUI applications
• implement and improve Qt-based interfaces
• build software components that interact with hardware
• write unit tests using Google Test
• use CMake for builds and dependencies
• collaborate with firmware, hardware, and software engineers
• participate in code reviews
• maintain documentation
• support execution schedules, data quality, and company practices.

What we're looking for

Skills & competencies

senior software engineer

c++

qt

san diego ca

monarch quantum

full-time

hardware-connected software

instrument communication

google test

cmake

9/80 schedule

$125k–$175k

Work arrangement

• Weekend coverage required

Benefits & perks

• Medical, dental, and vision insurance
• 401(k) with 4% employer matching
• 20 paid time off days per year
• 13 paid company holidays
• and a 9/80 schedule.

Why this role

Requires a bachelor’s degree in a related field, at least five years of relevant experience, and eligibility as a U.S. person for access to export-controlled information. The posting lists a 9/80 schedule with every other Friday off.

About the employer

Monarch Quantum is hiring for this role. Industry: Computer Systems Design Services. Sector: 54.