Mixed Signals Electronics Engineer - Compute

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. We are recruiting for a Mixed Signal Electronics Engineer. LOCATION Infleqtion has 6 office locations, operating out of Austin, TX; Boulder/Louisville, CO; Madison, WI; Chicago, IL; Oxford, UK; and Melbourne, AU. This position is a full-time, hybrid position which will be located in our Oxford, United Kingdom office. Job Summary Infleqtion UK is looking for a mixed signal electronics engineer with a passion for working with a multi-disciplinary team to bring state-of-the art quantum technologies outside the laboratory and into the real-world. You will use your skills to contribute to the design, verification, and implementation of electronic systems and subsystems for Infleqtion's quantum products. You will have strong skills and relevant experience working with digital, mixed-signal, and analogue electronics, ranging from DC to RF frequencies. Job Responsibilities The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time with or without notice.  

• Translating product requirements into end-to-end signal chain architecture
• Execution of modelling, simulation, and analytical calculations to design systems required to meet product performance
• Digital and mixed signal circuit design and signal processing using components such as DAC/ADC, FPGA's.
• PCB design and layout for integration into larger mechanical, optical, and other subsystems
• Shielding, cabling, and routing design for RF isolation
• Generation of files suitable for PCB manufacture
• Design and execution of test plans
• Identifying and engaging key suppliers
• Supporting development of risk management plans and risk resolution, and supporting reliability analysis and continuous improvement Requirements
• Bachelor's degree or substantive experience, with a focus in electrical engineering, electrical and computer engineering, electro-optical engineering, RF engineering, or embedded systems engineering
• An excellent understanding of electronics engineering principles, theory and design techniques
• Several years of relevant and progressive experience in a similar role
• Experience of RF development cycle from conceptualisation, design, manufacturing and validation through to deployment.
• Experience with designing PCBs for mixed signals applications
• Experience with PCB design software (e.g Altium)
• Experience with modelling and simulation tools (e.g. SPICE, HFSS)
• Experience with testing, verification, and validation of products and subsystems
• Experience using test and measurement equipment (network analyser, spectrum analyser etc)
• Ability to work comfortably in a highly collaborative, cross-functional teams Desirable Skills And Knowledge
• Experience with digital signal processing (DSP)
• High-speed photodetection systems
• Low phase-noise oscillators and frequency conversion
• Design for long term stability in varying environmental conditions
• Experience solving complex problems and challenges in a highly technical and scientific environment TRAVEL Up to 10% travel, including international travel, may be required Working Conditions & Physical Requirements Work will normally be performed in an office and laboratory environment. 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). Will involve sitting, standing, walking, lifting, and carrying up to 10 kg. EQUAL OPPORTUNITY Benefits In addition to your base compensation, we offer a generous Total Rewards program which includes:  
• Competitive salary
• Unlimited PTO
• Generous company pension contribution
• Cycle to work and Technology schemes
• Incentive Stock Option Plan