Senior Experimental Quantum Physicist

CHALMERS TEKNISKA HÖGSKOLA AKTIEBOLAG

Are you excited about pioneering experimental quantum computing? Do you want to be part of a world-class research environment developing the next generation of superconducting quantum processors? We are seeking a Postdoctoral researcher to join our ambitious team at the Wallenberg Centre for Quantum Technology (WACQT), based at the Department of Microtechnology and Nanoscience (MC2). About us  The https://www.chalmers.se/en/departments/mc2/ (MC2) advances the frontiers in quantum technology, nanoscience, photonics, and future electronic systems. Our cross-disciplinary approach drives innovations through collaborations across academia, industry, and society. We offer a vibrant, international environment with direct access to world-class nanofabrication facilities. At the https://www.chalmers.se/en/departments/mc2/research/quantum-technology/ (QTL), we explore how quantum physics can unlock radically new ways of processing information. Our research spans quantum computing, sensing, transduction, and thermodynamics, aimed at harnessing the behavior of light and matter at the quantum level. About the research project   This project is a proof-of-concept effort aimed at demonstrating a reliable post-fabrication trimming process for Josephson junctions in superconducting qubits. Unlike open-ended exploratory research, this project is goal-oriented and experimentally driven. It requires both careful physical interpretation and structured technical validation. You will take primary responsibility for planning and executing the experimental program in collaboration with senior researchers. While the role does not include formal personnel management, scientific initiative and independence are highly expected. Key responsibilities include: Designing and executing cryogenic experiments. Characterizing Josephson junctions and superconducting circuits. Analyzing device behavior and degradation mechanisms. Correlating electrical performance with material properties (aging, interfaces, coherence). Contributing to reproducible superconducting qubit fabrication workflows within WACQT. The project is closely connected to ongoing superconducting quantum processor development efforts within WACQT. Who we are looking for  The following requirements are mandatory:  A PhD in Physics, Applied Physics, Materials Science, Electrical Engineering, or a closely related field. Strong experimental research experience in superconducting devices, quantum devices, low-temperature physics, nanoscience, or related areas. Experience with at least one of the following:programming experience in Python MATLAB or similar tools for data analysis and experiment automation. You are expected to be somewhat accustomed to teaching, and to demonstrate good potential within research and education.  The following experiences are considered beneficial, but are not required: Dilution refrigerator operation. Transmon qubit measurements. Microwave control and readout. Quantum coherence measurements. Thin-film characterization. Tunnel junction fabrication. Cleanroom micro/nanofabrication. Device simulation or modeling. We recognize that strong candidates may not match every listed qualification. If your experience aligns with part of the profile and you are interested in the project, we encourage you to apply. What you will do Experimental research Design and execute experiments on superconducting quantum devices. Develop and validate electrical trimming methods for Josephson junctions. Perform low-temperature measurements using dilution refrigerators. Device characterization and analysis Characterize superconducting circuits using DC, AC, and RF measurement techniques. Analyze complex experimental datasets and develop physical interpretations of device behavior. Investigate relationships between fabrication processes, material properties, and device performance. Collaboration and scientific communication Work closely with researchers in superconducting qubit development, nanofabrication, and materials characterization. Present results internally and externally through publications, reports, and conference presentations. The position is meritorious for future roles in academia, industry, or the public sector.  Contract terms   The position is a temporary full-time employment for two years with the possibility of a one-year extension.  The position requires physical presence throughout the entire employment. A valid residence permit must be presented by the start date, otherwise the offer may be withdrawn.  What we offer  As a postdoc at Chalmers, you are an employee and enjoy all employee benefits. Read more about  https://www.chalmers.se/en/about-chalmers/work-with-us/ and our https://www.chalmers.se/en/about-chalmers/work-with-us/chalmers-as-an-employer/benefits-and-conditions/  for employees.  A dynamic and inspiring working environment in the coastal city of https://www.goteborg.com/en.  Read more about Sweden’s generous parental leave, subsidized day care, free schools, healthcare etc at https://www.movetogothenburg.com/  Chalmers is dedicated to improving gender balance and actively works with equality projects, such as https://www.chalmers.se/en/about-chalmers/organisation-and-governance/equality/genie-gender-initiative-for-excellence/. We celebrate diversity and consider equality and inclusion as fundamental aspects of all our activities.  If Swedish is not your native language, Chalmers offers Swedish courses to help you settle in.  Application procedure  The application should be written in English be attached as PDF-files, as below. Maximum size for each file is 40 MB. Please note that the system does not support Zip files.  CV  A comprehensive CV, including a complete list of publications.  Details of previous teaching and pedagogical experience.  Personal letter  A brief introduction about yourself.  A summary of your previous research fields and key research outcomes.  An outline of your future goals and research focus.  Use the button at the foot of the page to reach the application form.       A background check may be conducted as part of the application process.     Please note: The applicant is responsible for ensuring that the application is complete. Incomplete applications and applications sent by email will not be considered. Contact details to references will be requested after the interview.    We welcome your application no later than August 2, 2026

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.

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.