Rodeo
Get started

Infleqtion UK

Mixed Signals Electronics Engineer - Compute

Oxford
Posted about 20 hours ago
Sign up to applySee more jobs like this
Get notified of more jobs like this · No spam, ever

How your CV stacks up

1Upload CV
2Analyse CV
3Improve CV

Upload your CV to see how well it fits this job role

?%

Mixed Signal Electronics Engineer

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

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

Start with a chat, not a search bar

Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.

P

Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

See breakdown
Save jobNot relevant
View details

It searches the market for you

Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.

Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

See breakdown
Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

See breakdown
Strong

Only hits

No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.

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.

Get help with your application

Your very own career expert that helps elevate your application to the next level.

Get help applying for this job

EQUAL OPPORTUNITY

Regardless of your interest in the quantum industry, you can take pride in the fact that Infleqtion is building an ecosystem of quantum technologies and commercial products, driving the industry towards the future. Studies reveal that while men apply for jobs when they meet an average of 60% of the requirements, women and other groups tend to apply only when they meet all the criteria. If you believe you have the potential but don't meet every single point in our job advertisement, please don't hesitate to contact us! We would love to chat with you and see how you could bring great value to our team. Our goal is to find exceptional individuals who can enrich our team culture, actively contribute, and have a genuine passion for their work. Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin colour, 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.

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
Trusted by 25,000+ job seekers

“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”

Jessica, London

Get help applying for this job

Location

Oxford, England, United Kingdom

Sign up to applySee more jobs like this