Senior Quantum Engineer - Large-scale characterisation

Quantum Motion

ABOUT THE ROLE AND TEAM The Quantum Hardware Team specialises in designing, validating and operating quantum processors based on silicon industrial technology. As a Quantum Engineering Intern, you will work closely with our senior engineers and researchers to assist in the design, testing, and optimization of quantum hardware. This role is designed for students or recent graduates who are passionate about quantum mechanics and eager to gain hands-on experience in a fast-paced deep-tech environment.   Quantum Motion is a fast-growing quantum computing scale-up headquartered in London, with additional labs and offices in Spain, Australia and the US, founded by internationally renowned researchers from University College London and Oxford University with over 40 years’ experience in developing qubits and quantum computing architectures. Bringing together state-of-the-art cryogenic facilities and an outstanding interdisciplinary team, we are developing quantum processors based on industrial-grade silicon chips, with the potential to radically transform computing power in areas such as materials modelling, medicine, artificial intelligence and more. This role forms part of our investment in state-of-the art facilities in Sydney, Australia. It reflects our commitment to driving innovation and collaborating with some of the brightest minds in the quantum industry, and additionally taps into Australia’s strongest semiconductor and cryogenic ecosystem. Our mission is global and this is a rare and exciting opportunity to join a team which is shaping the future of quantum computing.   As part of our lean, high-impact and rapidly growing team, you will be working closely with our scientists, engineers and experts in a dynamic environment to make the site run smoothly and compliantly from day one, dedicated to contributing to the development of scalable quantum computers based on silicon technology. OUR TEAM Since 2021 our team has been listed every year in the “Top 100 Startups worth watching” in the EE Times, and our technology breakthroughs have been featured in The Telegraph, BBC and the New Statesman. Our founders are internationally renowned researchers from UCL and Oxford University who have pioneered the development of qubits and quantum computing architectures. Our chairman is the co-founder of Cadence and Synopsys, the two leading companies in the area of Electronic Design Automation. We’re backed by a team of top-tier investors, and we have recently closed our Series C funding of $160 million.   We bring together the brightest quantum engineers, integrated circuit (IC) engineers, quantum computing theoreticians and software engineers to create a unique, world-leading team, working together closely to maximise our combined expertise. Our collaborative and interdisciplinary culture is an ideal fit for anyone who thrives in a cutting-edge research and development environment focused on tackling big challenges and contributing to the development of scalable quantum computers based on silicon technology. Our team of 110+ is based in the UK (Oxford and London), Australia (Sydney), Spain (San Sebastián) and the US.  FUNCTIONS OF THE ROLE * Hardware Support: Assist in the assembly and testing of control circuits and cryogenic measurement setups. * Data Analysis: Develop and refine Python scripts for automated data collection and analysis of qubit performance metrics. * Experimental Execution: Support the execution of calibration routines and characterization experiments under the guidance of the hardware team. * Documentation: Maintain detailed records of experimental setups, results, and technical workflows. EXPERIENCE - ESSENTIALS * Bachelor's or Master's degree in electrical engineering or a related field * Strong understanding of semiconductor physics * Good understanding of quantum mechanics * Strong skills in electronics laboratory techniques, including soldering, wiring, and circuit debugging * Familiarity with data acquisition software (Python) and the ability to analyse and visualise experimental data * Excellent verbal and written communication skills EXPERIENCE - DESIRABLE * Strong understanding of quantum mechanics and quantum devices * e.g. familiarity with quantum dot characterisation techniques such as charge and spin transport measurements * Basic knowledge of quantum information systems and operations * Familiarity with the use of high-frequency electronics: AWGs, RF and MW signal generators, IQ (de)modulators * Ability to assist in designing and carrying out experiments; assist in data analysis and preparation of technical reports and presentations * Basic knowledge of digital communications techniques (SPI, JTAG, etc.) Note: The desirable experience requirements are not necessary for the role but would be considered as an advantage for the candidate. BENEFITS * Working with a World-Leading Team: Collaborate daily with world-leading experts in silicon spin qubits. * Paid Internship: Receive a competitive intern salary aligned with your skills and experience. * Direct Industrial Experience: Gain crucial, hands-on experience applying fundamental science to commercial hardware challenges. * Cutting-Edge Facilities: For relevant projects, access and operate state-of-the-art laboratory equipment, including dilution refrigerators and advanced measurement platforms. * Dedicated Mentorship: Receive guidance from an assigned industry expert and team members throughout your internship, with a focus on on achieving specific project goals. EEO STATEMENT Quantum Motion is committed to providing equal employment opportunity and does not discriminate based on age, sex, sexual orientation, gender identity, race, colour, religion, disability status, marital status, pregnancy, gender reassignment, religion or any other protected characteristics covered by the Equality Act 2010.

Quantum Motion

ABOUT THE ROLE AND TEAM The Integrated Circuits Team is responsible for the design and test of the integrated circuits which operate at deep-cryogenic temperatures and interact with the qubits. This role is a unique chance to work at the bleeding edge of technology development where you will measure, optimize, and analyze the performance of innovative circuits to tackle the engineering challenge of implementing a large-scale quantum computer in silicon. As an IC Validation Engineer, the position will suit someone with a strong background in the following areas and the ability to flexibly apply and combine them on a daily basis: practical electronics test and measurement, experimental design, statistics and data analysis, analogue and mixed-signal circuit operation principles, and CMOS device physics and process. No background in quantum physics is required. OUR TEAM This role forms part of our investment in state-of-the art facilities in Maryland, US. It reflects our commitment to driving innovation and collaborating with some of the brightest minds in the quantum industry, and additionally taps into the strong semiconductor and cryogenic ecosystem. Our mission is global and this is a rare and exciting opportunity to join a team which is shaping the future of quantum computing.     As part of our lean, high-impact and rapidly growing team, you will be working closely with our scientists, engineers and experts in a dynamic environment to make the site run smoothly and compliantly from day one, dedicated to contributing to the development of scalable quantum computers based on silicon technology. FUNCTIONS OF THE ROLE * Carry cryo-CMOS integrated circuit designs through multi-die performance characterization and applications support for integration with quantum devices * High-quality documentation of experimental design, measurement analysis/conclusions, application requirements, and user guides * Highly effective hardware and software debugging * Develop efficient and automated measurement and analysis routines to enable confident and scalable characterization of IC performance EXPERIENCE - ESSENTIALS *   Familiarity with bench-level electronic test and measurement equipment such as SMUs, VNAs, amplifiers, oscilloscopes, etc. *   Proficient in reading circuit schematics * Strong intuition and methodical approach to circuit debugging *  Advanced programming and data analytics ability * Knowledge of Python, C, or similar programming language *  Degree qualification in Electrical, Electronic, and/or Computer Engineering *  Strong analytical and problem-solving skills with a high-level of self-management * Excellent verbal and written communication skills EXPERIENCE - DESIRABLE * Prior experience with cryogenic electronics * Prior experience with quantum devices (especially semiconductor spin-based) * Advanced statistical analysis expertise * Prior experience in IC Applications Engineering and/or IC Product Engineering *  High-frequency device characterisation experience (RF and/or noise) * Knowledge of SOI processes and fabrication technologies * Familiarity with machine learning techniques and libraries BENEFITS * Be part of a creative, world-leading team * Competitive salary and share options scheme * Region-specific benefits (e.g. Health Insurance) * Choose your own laptop/kit  * Flexible working * Located in Maryland College Park - a state-of-the-art quantum hub  EEO STATEMENT Quantum Motion is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, age, pregnancy, genetic information, or any other characteristic protected by applicable federal, state, or local laws.

Terra Quantum

Job Description The Lead Photonics & Quantum Integration will own the technical strategy, execution, and roadmap appendices covering photonic interconnect, integrated silicon photonics, single-photon source integration, and longer-horizon quantum–classical hybrid compute elements within the programme’s technology roadmap. The successful candidate will bridge deep expertise in quantum photonics device physics with the practical demands of semiconductor process integration, working closely with the device teams to identify co-integration opportunities on the shared hardware platform. As a senior photonics engineer you will take ownership of the physical design and verification of cutting-edge photonic integrated circuits (PICs), guiding designs from initial proof-of-concept phases to high-volume manufacturing readiness.   Key Responsibilities Roadmap & Strategy * Lead the Photonics technology roadmap aligned with the programme’s overall progression. * Define go/no-go decision criteria, risk registers, and cost models for photonic integration at each process node, consistent with the programme’s existing MPW and pilot-line budgeting methodology. * Conduct technology horizon scanning and competitive landscape analysis across silicon photonics, photonic quantum computing, and optical interconnect for AI accelerators.   Device & Process Integration * Lead the design, simulation, and characterisation of photonic components (waveguides, modulators, photodetectors, single-photon sources) compatible with the programme’s FEOL + X + BEOL process flow. Layout Execution & Tape-out Ownership: Lead complex, full-loop manual and automated layout designs and mixed-signal functions (high-speed/general I/Os, ESD structures). Drive the full tape-out process, including floor planning, waveguide routing, and mask data preparation. * Design and simulate photonic integrated circuits for communication, sensing, or compute-related applications. Work with fabrication partners to develop layouts and ensure manufacturable designs. Collaborate with electronics, packaging, and test teams to integrate PICs into larger hardware systems. * Verification & Mitigation: Execute rigorous post-layout verification (DRC, LVS, fill, density) across multiple stepping versions. Trace defect sources, mitigate layout-dependent issues, and ensure DRC/LVS cleanliness prior to tape-out. * Evaluate and specify co-integration pathways for photonic elements with the existing HZO ferroelectric and metal-oxide layers, identifying shared ALD and BEOL metal-stack process steps. * Develop optical test and characterisation methodologies from wafer-level through to packaged sub-assembly, defining pass/fail metrics for manufacturing readiness.   Modelling & Simulation * Establish and own the photonics simulation workflow, interfacing with the programme’s existing layered tool chain. * Develop compact models and Verilog-A behavioural descriptions for photonic devices to enable system-level co-simulation with the NC-FET/memristor fabric. * Model optical interconnect power, latency, and bandwidth budgets for hybrid electronic–photonic accelerator architectures.   Team & External Engagement * In time build and lead a small specialist team as the photonics workstream scales through programme phases. * Manage relationships with foundry partners, MPW brokers, and academic collaborators for photonic process access and IP development. * Represent the programme at conferences, review panels, and in publications; contribute to grant and funding applications.   Cross-Programme Contribution * Participate in programme-wide design reviews, providing photonics perspective on hybrid systolic/crossbar architecture decisions, precision formats, and KV-cache strategies. * Contribute to the programme’s future framework, specifically on optical compute and interconnect as an enabling pillar.   Requirements * PhD in Physics, Electrical Engineering, or a closely related discipline with a focus on photonics, quantum optics, or integrated photonic devices. Candidates must possess a deep technical understanding of advanced node semiconductor fabrication, sophisticated automation capabilities and knowledge of high-density chip design. * Demonstrated track record in experimental quantum photonics R&D, including design, fabrication liaison, and characterisation of photonic devices or circuits. * Deep knowledge of semiconductor process flows (CMOS front-end and back-end) and an understanding of how photonic elements integrate within or alongside electronic process modules. Understanding of analog circuit layout, Silicon Photonic constraints, and device physics within advanced sub-micron CMOS and SiPh technologies. * Experience translating research-stage photonic technologies toward manufacturable, scalable hardware — ideally within a commercial or national-lab R&D environment. * Strong publication record and the ability to communicate complex photonic and quantum concepts to cross-disciplinary engineering teams. * Proficiency in physical modelling and data analysis (C++, Python, SKILL, TCL, HDL, MATLAB, or equivalent); familiarity with photonic simulation tools (Lumerical, COMSOL, MEEP, or similar). Experience with Cadence Virtuoso (Custom Layout, SDL) and industry-standard verification suites (Calibre, Hercules, ICV, Dracula, or Primeyield) * Experience developing or contributing to multi-year technology roadmaps, including milestone definition, risk assessment, and cost estimation.   The Rewards  We are an international team of quantum technology experts and dedicated business creatives that are working to bring quantum-enabled solutions to the global market. Our brilliant team members enjoy a high degree of freedom working remotely or joining one of our office spaces. We have a vibrant, enthusiastic, passionate and creative culture driven by trust, excellence and continuous improvement. If you join the Terra Quantum team, you can expect:  * An opportunity to work with some of the brightest minds in the pioneering field of Quantum Technologies as well as an experienced and progressive Leadership team * Gain knowledge of some of the most cutting-edge technology developments in science & engineering  * A chance to be part of one of Europe’s leading technology firms of the upcoming decades * Welcoming, friendly, and professional colleagues * A personal development plan with clear goals for advancement * A competitive salary  * Flexible working arrangements  * A diverse and supportive atmosphere, where innovation and initiative are encouraged   If you are enthusiastic about positively impacting the world and helping to drive the second quantum revolution, let’s talk!    Company description  Quantum technologies have the potential to solve some of the world’s biggest challenges. There have been great advances in all areas of quantum technologies, and new fields of application are opened up every day. Hybrid computer systems that combine classic high-performance computing with quantum computers are already being used to develop solutions in sectors such as logistics, healthcare, finance, energy, automotive and aerospace. Quantum mechanical predictions are also used to obtain unprecedented precision in measurements, generate unbreakable codes, and form the basis of impenetrable communication networks. All these developments are happening right now, and they are happening at Terra Quantum.  At Terra Quantum we are building the world’s leading Quantum Technology company. We offer customers world-class quantum technology expertise organized as “quantum-as-a-service”: hybrid quantum algorithms, quantum compute and quantum enabled security solutions. Through the proprietary quantum cloud, customers have access to a unique technology platform which provides a toolset to solve real-world challenges in the realms of machine learning, optimization and simulation, today. In 2022, the company closed its Series A financing round with a $75m fundraise.  Quantum physics has, in some respects, parallels to the machine language of our computers-the zeros and ones into which our keyboard or touchscreen instructions are translated for execution in the computer-only on a larger scale: it is the machine language of the universe. The second quantum revolution is based on the control of individual quantum systems, such as individual atoms. We use quantum computers to solve currently unsolvable problems, simulate molecules and their interactions, find drugs for diseases that are not yet curable, find new materials, or make artificial intelligence stronger. Quantum is now.  Terra Quantum is a future-focused quantum services and technology company working on making the second quantum revolution a reality. Terra Quantum’s activities span all areas, markets, and industries globally.  * Our purpose is to pioneer quantum technologies to change the world for good, * Our vision is to lead the quantum revolution and be the trailblazer in technology solutions, shaping a better future for humankind to thrive in, and * Our mission is to unleash the power of quantum tech to deliver meaningful solutions today Terra Quantum is an equal opportunities employer, committed to diversity, inclusion and employee well-being.