Senior Electrical Engineer - Analog and Mixed Signal for Quantum in Space

Company: Infleqtion
Location: Louisville
Posted on: February 11, 2026

Job Description:

Job Description Job Description Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables “quantum everywhere” through our ecosystem of devices and platforms. Position Summary We are seeking a Senior Electrical Engineer specializing in analog and mixed signal designs to join our Emerging Technology team. This individual will be a key contributor in the electrical design, integration, test, and qualification of custom circuits and control system subsystems for operation of deployed quantum systems and sensors in space, terrestrial, and lab-based environments. Initially, this role will be in support of a technology demonstration mission in collaboration with NASA JPL/Goddard that will demonstrate a first-of-its-kind quantum gravity gradient (QGG) sensor on a dedicated satellite. The successful candidate will collaborate with an extended team of electrical engineers, physicists, mechanical engineers, embedded systems engineers, systems engineers, and sub vendors to develop high performance, low noise, radiation tolerant and robust circuits critical to the operation of this exciting new quantum sensing capability demonstrator. Key Responsibilities Manage engineering projects and deliver them on time Develop analog circuits, including design, schematic capture, PCB layout, prototyping build, test, validation, and troubleshooting Design, model, and simulate analog circuits and validate circuit performance through bench testing Preferred focus on low noise and low drift circuit design Design control loops in the analog and digital domains Collaborate with engineers, physicists, and technicians to troubleshoot, debug, and rework existing circuit boards in use Perform quality and performance analysis on new and legacy electrical systems Work with other engineering disciplines on electrical, mechanical, and thermal interface requirements and design Manage and mentor peers and more junior team members to ensure project success Summarize data and report on test results Providing estimates of resources needed to deliver successful projects on schedule and budget Communicating with key stakeholders on progress, barriers, and status Other duties or projects as assigned to ensure mission success About the Team You’ll join a passionate and experienced team developing one of the world's first space-deployable quantum gravity sensors. This effort is foundational to future navigation, earth science, and resource exploration missions. Travel Up to 10% local travel may be required. Requirements Minimum Qualifications Bachelor's degree in electrical engineering At least four years of experience in low noise analog circuit designs and analog to digital mixed-signal designs Working knowledge of OrCAD, Altium, PADS, etc. Experience in circuit simulation using SPICE software A good understanding of circuit noise analysis and analog circuit analysis, as well as signal-integrity, power integrity and EMI/EMC requirements Experience with component derating and PCB-level thermal mitigation Ability to work safely with high voltage and/or high current circuits and test equipment Proficient in MS Office Good verbal and written communication skills, able to effectively share information with technical and non-technical staff Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). 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 Preferred Qualifications Experience with space-deployed systems and the associated challenging vibration, thermal, and radiation environment Experience in power electronics or RF Working knowledge of control systems and signal processing Experience with high and ultra-high vacuum system environments Experience with Contract Electronic Manufacturing Experience mentoring and managing more junior engineers Experience with power electronics including DC-DC converters, filters, and high power ( Working Conditions and Physical Requirements This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). 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 Work will normally be performed in an office and laboratory environment and around technical equipment including computers and lasers. Able to sit, stand, bend, lift and carry up to 40 pounds without assistance. Able to efficiently use automated office equipment such as laptops, copiers, and printers; able to effectively engage in communications (via phone, computer, or in-person). Any required Personal Protective Equipment will be provided and must be properly used in accordance with company requirements. Benefits The targeted salary range for this role is 120,000 to 150,000 USD on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equity Opportunity

Keywords: Infleqtion, Loveland , Senior Electrical Engineer - Analog and Mixed Signal for Quantum in Space, Engineering , Louisville, Colorado