Quantum Design Engineer

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! As a Quantum Design Engineer in our R&D team, you’ll be at the heart of advancing the performance and scalability of superconducting quantum processors. You’ll lead the design of next-generation qubit chips and modular, scalable QPU architecture, working from on-chip subsystem architecture to EM simulations, frequency allocation, crosstalk management, packaging, and interconnect strategies. You’ll also design and optimise nonreciprocal superconducting circuits, such as isolators and parametric amplifiers that will drive robust, high-fidelity readout chains. These designs will enhance readout signal-to-noise ratio and stability, feeding into our next-gen readout modules and ensuring seamless coupling with the qubit layer. This role is highly collaborative: you’ll work in a tight feedback loop with experimentalists and device engineers to transform measurement insights into rapid design iterations, pushing performance, coherence, yield, and manufacturability across the full qubit stack. What you’ll be doing Design and simulate cutting-edge quantum hardware to improve performance, coherence, and scalability. Develop high-performance, manufacturable device architectures that accelerate R&D cycles and increase qubit fidelity and yield. Architect and optimize the layout of nonreciprocal superconducting circuits such as parametric amplifiers, targeting robust performance under cryogenic conditions. Interpret simulation results and correlate with experimental data to guide iterative design improvements. Collaborate across teams to ensure rapid design-to-test cycles, connecting theory with experiment. Automate the design pipeline using Python, enabling parametric device generation, simulation sweeps, and data post-processing. Your profile MSc in Physics, Electrical Engineering, or related field, with 2+ years of industry experience or a PhD with relevant hands-on work Strong Python skills for automating designs, controlling simulations, and analyzing data Experience with EM simulation and chip design tools (e.g. Ansys HFSS-Q3D, KLayout); Git and Qiskit-Metal familiarity is a plus Knowledge of cQED devices and superconducting circuit design is a strong advantage Experience designing nonreciprocal superconducting circuits (e.g. parametric amplifiers) or advanced readout techniques is highly valued Solid grasp of microwave engineering, quantum noise sources, and fabrication methods 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 competitive monthly salary, plus an 8% annual holiday bonus paid out each May Pension that’s built to last - A future-proof pension plan that includes partner and dependent coverage. QuantWare covers 63% of the premium Flexibility built on trust - We focus on outcomes, not hours. You’re trusted to manage your time and energy responsibly, in a hybrid setup with an open vacation policy, because with freedom comes ownership Relocation support - If you’re moving to the Netherlands, we’ll make the transition seamless. We cover visa support, temporary housing in most cases, and help securing the 30% tax benefit for eligible candidates. 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 focus on well-being - We support your physical and mental energy through wellness initiatives that help you recharge and stay sharp A connected team - We make space to celebrate wins together, with team events, offsites, and spontaneous moments that bring us closer Financial clarity - Through our partnership with Equip, you’ll get tools and expert guidance to help you understand and optimise your total compensation 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.