{"id":691148,"url":"https://alion.io/job/infleqtion-senior-software-engineer-quantum-computing","title":"Senior Software Engineer (Quantum Computing)","company":{"id":6532,"name":"Infleqtion","domain":"infleqtion.com","url":"https://alion.io/company/infleqtion","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":96,"open_postings":6,"ghost_share":0,"stale_share":0.167,"repost_share":0,"time_to_fill_p50_days":44,"computed_at":"2026-11-04T06:34:25Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Boulder, United States","Chicago, United States","Madison, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":160000,"max":185000,"currency":"USD","period":"year","gross":null,"usd_annual":185000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"ETL/ELT","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"Machine Learning","optional":false},{"name":"NumPy","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"Rust","optional":false},{"name":"SciPy","optional":false},{"name":"SQL","optional":false},{"name":"Time Series","optional":false}],"status":"live","first_seen_at":"2026-09-10T00:00:00Z","employer_posted_date":"2026-09-10","last_verified_at":"2026-11-04T10:24:06Z","board_verified":true,"closed_at":null,"days_open":55,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":55},"description":"Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward.\nWe build quantum computers. You will write the software that runs them.\nThis is a production-first, high-coding role - roughly 90% of your time will be spent writing and owning code, not reviewing or directing others who do. You will work directly alongside physicists and hardware engineers, converting complex scientific requirements into software that controls real quantum machines. If you are looking to step back from the keyboard, this is not that role.\nRequirements\nYou will\nWrite, own, and ship production backend services and control frameworks that directly operate and calibrate our neutral atom quantum computers - if it breaks, you fix it.\n Debug and support every layer of the control stack - from real-time embedded kernels to distributed services - without handing it off when it gets hard.\nBuild reliable tooling that lets physicists and hardware engineers run experiments independently, which means understanding what they need well enough to build it without a lengthy translation process.\nDevelop and maintain CI/CD pipelines, containerized deployments using Docker and Kubernetes, and Python packages with C++ or Rust extensions in a Linux-native environment.\nWork hands-on with experimental data - time-series, SQL and non-relational databases, and realtime image analysis and object detection from live quantum systems.\nYou have\n6+ years of backend software engineering; a degree in Computer Science, Physics, Applied Mathematics, or a field where writing code to solve hard quantitative problems was the norm, not the exception.\nProduction-tested Python and hands-on C++ or Rust experience - both is a strong advantage; candidates who bring all three move to the front.\nA track record of rigorous engineering discipline: comprehensive testing, clean revision control, operational reliability, maintainable systems, thorough documentation, and a reflex for code health - not as process, but as habit.\nReal experience with scientific or experimental data pipelines - NumPy, SciPy, PyTorch, time-series storage, and ETL - ideally in a context where data quality directly affected outcomes.\nA science or mathematics background, or verifiable experience embedded with scientists translating research requirements into production software - you can hold your own in a conversation about physics.\nFamiliarity with statistics, machine learning, or AMO physics is a genuine differentiator; experience with realtime image analysis and object detection moves you to the top of the list.\nBenefits\nThe targeted salary range for this role is $160,000 to $185,000 on an annualized basis plus eligibility to participate in our annual incentive plan.\nIn addition to your base compensation, we offer a generous Total Rewards program which includes:\n100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs\nEmployer funded Health Savings Account\nUnlimited Paid Time Off\n401(k) Matching Programs\nCompany paid Life and AD&D Insurance\nFlexible Healthcare Savings Account\nPaid FMLA Leave\nPaid Maternity/Paternity Leave\nEmployer Assistance Program\nStudent Loan Repayment\nEqual Opportunity\nHere you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.\nNote\nThis position may require access to information protected under U.S. export control laws and regulations for quantum computing technology. Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license.\nContact Information\nIf this opportunity interests you and you fit the job description, please submit an application. If you need assistance or an accommodation due to disability, please feel free to contact us at .\nNotice to Recruitment Agencies:\nInfleqtion does not accept unsolicited resumes from agencies. 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