Fabrication Engineer

JOB DESCRIPTION Do you want to work at the forefront of quantum technology? Do you have hands-on experience in cleanroom fabrication and a passion for precision, process optimization, and high‑tech innovation? Are you excited to contribute to the development and production of world‑leading superconducting nanowire single‑photon detectors? Then we invite you to read on and apply! IN SHORT Single Quantum (singlequantum.com) develops the world’s fastest and most sensitive light‑detection systems — pushing the limits of physics. As we continue to scale up our production capabilities, we are expanding our Nanofabrication team. We are looking for a Nanofabrication Engineer to join us at our headquarters in Delft. In this role, you will be directly involved in the fabrication, optimization, and development of nanofabrication processes that form the core of our SNSPD technology. This is a full‑time position, ideally starting in mid-July/August 2026, and classified under Function Group J (depending on background: Bachelor / Master / PhD). WHAT YOU WILL BE DOING Key responsibilities include: * Fabricate SNSPD devices in the cleanroom with high precision and reproducibility.  * Execute standardized nanofabrication production runs. * Optimize existing fabrication processes to improve yield, stability, and reproducibility. * Develop new fabrication processes and transfer them to newly installed cleanroom equipment. Daily work takes place primarily in the VLL cleanroom in Delft, with occasional activities in the EKL cleanroom. You will work with a broad set of tools and processes, such as: * Electron‑beam lithography * Laser writer patterning * PECVD / ICPECVD * Photolithography * Reactive ion etching  * Sputtering systems * Bosch etching * Wet bench processes * ALD systems You will collaborate closely with colleagues in Nanofabrication, R&D, and Production to ensure high‑quality device fabrication. YOUR PROFILE AND REQUIREMENTS We are looking for someone with:  * Master’s or PhD in Applied Physics, Photonics, Electrical Engineering, Nanotechnology, or related fields. * HBO/Bachelor candidates with several years of cleanroom experience are also considered. * Has hands-on experience with different fabrication processes (e.g. e-beam lithography, RIE, Bosch etching) and metrology tools (SEM, AFM). * Has strong attention to detail and a commitment to high‑quality fabrication. * Can work independently within a short timeframe after onboarding. * Is a problem solver with hands-on attitude; being able to proactively find solutions using DOE methods and approach problems in a structured systematic way. * Has excellent teamwork skills and the ability to collaborate within cross functional environments. * Has good organizational and communication skills. * Has great sense of responsibility and commitment * Has the ability and strong ambition to independently optimize processes. * Is proficient in English. Preferred experience: * Prior experience in the VLL or EKL cleanrooms in Delft. * Affinity with SNSPD device physics and fabrication. * Experience in optimizing nanofabrication processes. * Experience in fabricating superconducting devices and photonic devices Additional notes: * Independence is important due to the nature of the role. * EU work authorization is required. WHAT WE OFFER * A collaborative, international team working at the cutting edge of quantum technology. * Salary in accordance with the CAO Metalelektro, plus secondary benefits. * A comfortable workplace with coffee, fresh fruit, and weekly catered lunches. * A solid retirement plan (PME). * Up to 40 vacation days per year (full‑time). * Plenty of room to share ideas, take initiative, and grow professionally. * Comprehensive social security benefits under the CAO Metalelektro. If this role excites you and you believe you are a strong match, we encourage you to submit your CV and a motivation letter explaining why you are the right fit and what attracts you to this position.  EQUAL OPPORTUNITY EMPLOYER At Single Quantum, we celebrate diversity and are committed to creating an inclusive environment for all employees. We are proud to be an equal opportunity workplace. We also encourage female candidates to apply for this position, regardless of the fact that you may not meet the full the requirements. HOW TO APPLY If the job description and Single Quantum excites you, we encourage you to submit your CV as well as a motivation or cover letter explaining why you think you're a good fit for the position, along with what attracts you to the position. CONTACT If you have any questions before applying or would like to have a general conversation about Single Quantum, you can contact our HR Officer, Jacqerina Jarad on +31 (0) 850 400 902 or email to career@singlequantum.com

ABOUT US QuantWare is building the world’s most powerful quantum processors to solve humanity's greatest challenges. We do this with our unique VIO™ technology, the only QPU architecture that breaks the hardware barriers that have held quantum computing back, unlocking the path to MegaQubit quantum processors. With VIO, we are paving the way for the hyper-scale quantum computers that will change the world. And delivering on that vision demands people who don’t shy away from tackling the hardest challenges of our time. That’s where you come in! We are building a state-of-the-art fabrication facility dedicated to manufacturing quantum processors. As a Process Engineer you will sit at the intersection of R&D and operations, translating cutting-edge quantum device research into repeatable, high-yielding processes. You will play a central role in two critical phases of the fab ramp-up: (1) transferring processes from the R&D team into the kilofab environment through MES and optimizing them for yield, throughput, and repeatability; and (2) qualifying new capital equipment as it arrives on the fab floor through Site Acceptance Testing (SAT). WHAT YOU'LL BE DOING Tool Qualification & SAT * Lead or co-lead Site Acceptance Testing (SAT; IQ/OQ/PQ) for incoming process tools (at least for 2 process modules). * Create SAT criteria in collaboration with equipment engineers and tool vendors; Negotiate test conditions and results sign-off. * Execute qualification wafer runs, analyze results, and generate formal SAT reports with pass/fail determinations. * Manage your responsible tool installation timelines together with Facilities and Equipment Engineering to minimize schedule impact. * Coordinate vendor support during tool bring-up and drive resolution of open issues to baseline release. Process Transfer & Optimization * Own the end-to-end transfer of at least 2 process modules (PVD, CVD, ALD, dry/wet etching, track, evaporation, dicing and laser/e-beam writing) from R&D to kilofab. * Work closely with R&D scientists to ensure process intent is preserved during transfer and to feed learnings back upstream. * Develop and execute process qualification plans (PQPs): establishing process windows, control limits, and acceptance criteria. * Establish and maintain process control monitoring (SPC) for all processes and set up fault detection classification (FDC) with the fab automation team. * Drive DOE (Design of Experiments) to optimize key process parameters for yield improvement. * Use data driven decision making to perform root cause analysis to identify and resolve process issues. * Document all learnings made in a structured way so these can form the basis of OCAPs in the future. * Document SOPs and train technicians on tool operations and wafer level metrology. * Own the process engineering scope within the MES: Manage recipe lifecycle (creation, revision, versioning, and retirement), maintain process and parameter data integrity to ensure traceability, deploy SPC, update process consumables & DOE creations. * Participate in the Change Control Board (CCB): Provide relevant data for review and drive the approval for the change of process. * Support the rapid introduction of new processes and products to match Quantware's fast-evolving product roadmap demands. * Build respectful relationships across process engineering, process integration, R&D, Equipment Engineering, facilities and production teams to drive cross-functional alignment to achieve a win-win outcome. * Proactively build and document deep hardware knowledge of responsible process tools, connecting tool mechanics to process behavior to drive informed optimization and faster troubleshooting. YOUR PROFILE * MSc or PhD in Physics, Materials Science, Electrical Engineering, Chemical Engineering, or a closely related discipline. * 3+ years of hands-on cleanroom process engineering experience in a semiconductor fab or advanced materials fabrication environment. * Demonstrated experience with at least two of the core process modules listed above (PVD, CVD, ALD, dry/wet etching, evaporation, dicing, track or laser/e-beam writing). * Practical experience executing or supporting equipment qualification or SAT activities. * Proficiency in statistical analysis tools (JMP, Minitab, Python/R for DOE and SPC analysis). * Strong documentation skills; experience writing SOPs, process & tool specifications, and qualification reports. * Ability to work in a Class 100/ISO 5 (or equivalent) cleanroom environment. * Experience in superconducting qubit fabrication, cryogenic device processing, or other quantum technology contexts is a bonus. * Familiarity with cryogenic material constraints (e.g. film stress, thermal cycling behavior) is also desirable. Don't tick every box? Apply anyway. We know great candidates don't always follow a straight path, and we value diverse experience, perspectives, and ways of thinking. If this role excites you and you believe you can make an impact, we'd love to hear from you! What We Offer: At QuantWare, you’ll be part of a high-performing team of world-class experts in an ambitious, fast-moving environment. From day one, you’ll have the trust, tools, and support to do your best work. Here’s what you can expect: Competitive salary - A salary that reflects the impact and importance of the role (and of course 8% holiday allowance) Pension that’s built to last - A generous and future-proof pension plan that includes partner and dependent coverage. Flexibility built on trust - We focus on outcomes. Work flexibly, in a hybrid setup, with an open vacation policy that lets you manage your time Personal growth - We invest in your L&D, with a budget available to each team member, dependent on their individual ambitions, development needs, and performance A connected team - We make space to celebrate wins together, with team events, offsites, and spontaneous moments that bring us closer Diversity & Inclusion at QuantWare We’re an ambitious company, not only for our goals but also to become an even more diverse and inclusive team. We know this helps us with better decisions, more innovation, and strengthens our culture. In particular, we’d love to see more women in the quantum industry! So if you’re a female talent, excited about this opportunity but don’t meet every single requirement, we still encourage you to apply. As part of our recruitment process, candidates may be required to undergo pre-employment screening.