{"id":699056,"url":"https://alion.io/job/monarchquantum-software-engineer-3","title":"Software Engineer 3","company":{"id":678365,"name":"Monarch Quantum","domain":"monarchquantum.com","url":"https://alion.io/company/monarchquantum","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":95,"open_postings":37,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":64,"computed_at":"2026-09-29T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Diego, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":125000,"max":175000,"currency":"USD","period":"year","gross":null,"usd_annual":175000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"C++","optional":false},{"name":"CMake","optional":false},{"name":"Git","optional":false},{"name":"Qt","optional":false}],"status":"live","first_seen_at":"2026-09-28T00:00:00Z","employer_posted_date":"2026-09-28","last_verified_at":"2026-09-29T18:43:19Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":1},"description":"Join our fast-paced and passionate team as a Senior Software Engineer. 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:\nDevelop and maintain C++ software for instrument communication and GUI applications. \nImplement and improve Qt-based graphical user interfaces for commercial and internal applications. \nDesign and develop reliable software components that interact with hardware devices. \nWrite unit tests using Google Test to ensure software reliability and robustness. \nUse CMake to manage build configurations and dependencies. \nCollaborate with cross-functional teams, including firmware, hardware, and software engineers. \nParticipate in code reviews, provide constructive feedback, and adhere to best coding practices. \nMaintain clear and well-structured documentation. \nWork independently and in a team while over communicating with the manager, project engineer, and the teammates. \nUse 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. \nUse every opportunity to grow competency through mentorship, curiosity, communication, exposure, and initiative. \nRequirements\nThis 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).\nExperience:\nA bachelor’s degree in Software Engineering, Computer Engineering, or a related field. \nMinimum of 5 years of relevant experience, ideally within a startup or technology company. \nSkills:\n5+ years of professional experience in C++ software development. \nStrong understanding of modern C++ (C++ 14/17/20). \nExperience with Qt 6 for GUI development with Qt Widgets & QML. \nExperience with CMake for build and project configuration. \nFamiliarity with unit testing frameworks, preferably Google Test. \nAbility to debug, profile, and optimize C++ applications. \nExperience working with version control systems (Git). \nStrong problem-solving skills and ability to work independently and in a team. \nExperience with instrument communication protocols (e.g., SCPI, FTDI USB, Ethernet, Serial).\nFamiliarity with multi-threaded programming and concurrency in C++.\nKnowledge of software best practices, including design patterns, SOLID principles, and performance optimization. \nExperience working in an agile development environment.\nStartup Mindset:\nYou're creative, flexible, and eager to wear multiple hats. \nYou're passionate about building systems from the ground up and comfortable with ambiguity and change. \nBenefits\nThe expected annual salary range for this position is $125,000-$175,000.\nAs a full-time employee, you will be eligible for Monarch’s comprehensive benefits package, which includes:\nMedical, Dental, and Vision insurance \nFidelity 401(k) plan with 4% employer matching \n20 paid time off (PTO) days per year \n13 paid company holidays \n9/80 work schedule (every other Friday off) \nMonarch 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.","description_format":"text","description_chars":3742,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Vision insurance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Quantum Computing Hardware","Optics & Photonic Components"],"lifecycle":[{"event":"open","at":"2026-09-11T02:29:19Z"},{"event":"close","at":"2026-09-17T07:22:53Z"},{"event":"reopen","at":"2026-09-28T20:38:50Z"}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":1,"expected_fill_days":64,"reasons":["conf:3","velocity","win:early"],"computed_at":"2026-09-29T05:45:00Z"},"pay":{"stated_usd_annual":175000,"is_top_pay":false},"html_url":"https://alion.io/job/monarchquantum-software-engineer-3","json_url":"https://alion.io/job/monarchquantum-software-engineer-3.json","meta":{"generated_at":"2026-09-30T02:29:27Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":1692,"day_limit":5000,"remaining_today":3308,"minute_limit":60,"resets_at":"2026-10-01T00:00:00Z"}}}