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Location: Zurich, Switzerland

Employment Type: Full-Time

Department: Quantum Architecture

Position Overview

We are seeking a Quantum Error Correction (QEC) Theorist with deep expertise in fault-tolerant quantum computing and a strong understanding of trapped-ion systems or other atomic systems. The successful candidate will design, analyze, and optimize error correction protocols tailored to trapped-ion architectures, bridging theory and hardware implementation.

You will collaborate closely with experimental physicists, control engineers, and quantum software teams to enable practical fault tolerance on near-term and scalable ion-trap platforms. You will also be expected to work with external partners and lead collaborations with academic and industrial teams.

Key Responsibilities

• Design and analyze quantum error correction codes suited for trapped-ion systems (e.g., surface codes, color codes, LDPC codes, bosonic codes).
• Develop architecture-aware fault-tolerant schemes considering realistic noise models (dephasing, motional mode heating, crosstalk, gate infidelity, leakage).
• Optimize syndrome extraction protocols using native trapped-ion gates
• Model logical error rates under hardware-constrained connectivity in a 2D ion shuttling architecture.
• Collaborate with experimental teams to validate QEC protocols on real hardware.
• Contribute to threshold analysis, decoding strategy development, and resource estimation for large-scale algorithms.
• Publish findings in leading journals and present at major conferences.

Required Qualifications

• Masters or PhD in Physics, Applied Mathematics, Computer Science, or a related field.
• Demonstrated expertise in quantum error correction and fault-tolerant quantum computing.
• Strong analytical and numerical modelling skills.
• Experience working with realistic noise models and hardware constraints.
• Proficiency in Python and scientific computing tools (NumPy, SciPy, JAX, QuTip, STIM, or similar).

Preferred Qualifications

• Experience with trapped-ion quantum computing architectures.
• Knowledge of decoder implementations (MWPM, belief propagation, neural decoders).
• Familiarity with quantum software frameworks (e.g., Qiskit, Cirq, or hardware-specific SDKs).
• Experience with architectural proposals of at least one of the major competing QC platforms, with preference for dynamically reconfigurable approaches.
• Experience modelling Open Quantum Systems
• Track record of publications in top-tier journals

What We Offer

• Opportunity to define the fault-tolerance roadmap for a trapped-ion quantum platform.
• Close collaboration between theory and experiment in a rapidly scaling quantum hardware program.
• Access to cutting-edge ion-trap hardware that breaks away from the mainstream.
• Competitive compensation and equity. Stock option plan that allows you to become a true shareholder in the company.
• Flexible work environment (home office).
• Be part of a dynamic team that operates on four core principles: Excellence, Reliability, Trust & Open Feedback.
• Zurich constantly ranks at or near the top of most liveable cities in the world. Whether you like the arts, sports or nature, Zurich has it all on offer
• 30 days of holiday.

Impact

Your work will directly shape the path toward scalable, fault-tolerant trapped-ion quantum computing—transforming today’s high-fidelity devices into tomorrow’s logical quantum processors.

To Apply:

Please submit your CV and a cover letter.

We are an equal opportunity employer committed to building a diverse and inclusive team.

Location: Zurich, Switzerland

Employment Type: Full-Time

Department: Quantum Architecture

Position Overview

We are seeking a mid-level Compiler Engineer to design and build the compilation stack for ZuriQ's 2D Penning trap quantum computing architecture. You will work on the full pipeline from high-level quantum circuits down to hardware-native pulse sequences, with particular emphasis on 2D ion transport compilation, one of the most technically demanding and least explored problems in the field.

You will work at the intersection of classical compiler engineering and quantum hardware constraints to build a modular, extensible compiler. While the role is primarily software-engineering-focused, a working understanding of trapped-ion or Penning trap physics will help you make the right architectural decisions when hardware realities meet compiler abstractions.

Key Responsibilities

• Design and implement MLIR-based compilation passes for quantum circuits targeting our 2D Penning trap architecture.
• Develop and optimize the 2D ion transport compilation layer: routing, sequencing, and scheduling ion shuttling operations under hardware timing and connectivity constraints.
• Build quantum circuit optimization passes (gate synthesis, peephole rewriting, commutation-aware reordering) as MLIR dialects and transformations.
• Define and maintain intermediate representations (IRs) that bridge abstract quantum algorithms and hardware instructions set.
• Collaborate with control software engineers to ensure compiled output is directly consumable by the hardware backend.
• Profile compilation pipeline performance and optimize for both compilation speed and output quality (gate count, depth, transport overhead).
• Contribute to internal tooling, testing infrastructure, and documentation for the compiler stack.
• Stay current with the research landscape in quantum compilation, transport-aware scheduling, and trapped-ion architectures.

Required Qualifications

• Master's or PhD in Computer Science, Physics, Electrical Engineering, or a related field.
• +2 years of professional experience in compiler engineering.
• Strong proficiency in C++ (modern C++17/20) for systems-level compiler development.
• Solid Python skills for tooling, testing, and integration with quantum software ecosystems (Qiskit, PennyLane, or similar).
• Solid understanding of compiler fundamentals: IR design, pass management, dataflow analysis, and code generation.
• Ability to reason about hardware constraints and translate them into compiler policies.

Preferred Qualifications

• Experience writing custom MLIR dialects and transformation.
• Demonstrated experience in quantum circuit compilation or optimization.
• Familiarity with trapped-ion, Penning trap, or other atomic quantum hardware.
• Experience with ion transport or qubit routing problems graph-structured architectures.
• Contributions to open-source quantum software or compiler projects.

What We Offer

• Play a key role in building and shaping a new compiler stack.
• Direct access to cutting-edge 2D Penning trap hardware.
• Competitive compensation and equity. Stock option plan that allows you to become a true shareholder in the company.
• Flexible work environment (home office).
• Be part of a dynamic team that operates on four core principles: Excellence, Reliability, Trust & Open Feedback.
• Zurich constantly ranks at or near the top of most liveable cities in the world. Whether you like the arts, sports or nature, Zurich has it all on offer.
• 30 days of holiday.

Impact

The 2D Penning trap architecture presents a fundamentally different set of constraints from mainstream ion trap or superconducting platforms. Ion transport in two dimensions introduces a rich, largely unsolved compilation challenge, and your work will define how ZuriQ's hardware is programmed at scale. You will be building the bridge between quantum algorithms and a novel physical platform, with direct influence on system performance and long-term scalability. You'll have real opportunities to publish and patent your work.

To Apply:

Please submit your CV and a cover letter. We are an equal opportunity employer committed to building a diverse and inclusive team.

Location: Zurich, Switzerland

Employment Type: Full-Time

Department: Control

Position Overview

We are seeking a mid-level Software Engineer to build and maintain the software layer that automatically runs quantum circuits and calibrations on ZuriQ's trapped-ion quantum computing hardware. Your work will encompass tooling across the control stack, ranging from low-level control software up to scheduling of calibration and data acquisition pipelines. In this role, you will collaborate directly with the experimental physicists that operate the ion trap systems, translating their needs into reliable, performant tooling.

Your domain is all software above the hardware abstraction layer, handling sequencing, scheduling, hardware control, and recording of the system state. The ideal candidate has strong software building experience, but also enjoys working closely with hardware, understanding why a tool matters and not just how to build it.

Key Responsibilities

• Design and maintain the software stack for sequencing and scheduling hardware tasks: managing queues, resource allocation across control devices, and sequencing of pulse and voltage operations.
• Develop and extend control software in Python and C++, including voltage sequence generation, parameter management, and integration with the broader control stack.
• Build and maintain data acquisition pipelines: structured logging of experimental results.
• Work closely with physicists to understand tooling requirements and turn them into well-designed, reusable software components.
• Maintain software quality through testing, documentation, and code review.
• Profile and optimize performance-critical paths where scheduling latency or data throughput demand it.
• Contribute to the evolution of the control software architecture as the quantum computer scales.

Required Qualifications

• BSc, MSc or PhD in Physics, Applied Physics, Electrical Engineering, Computer Science or a closely related field.
• 2+ years post-degree in a software-heavy role, ideally in a laboratory or scientific computing environment.
• Strong Python skills: clean API design, packaging, testing, and integration with hardware libraries.
• Practical C++ experience for performance-sensitive control software.
• Familiarity with HDF5 or similar structured scientific data formats.
• Ability to work in a fast-moving environment, balancing robustness with velocity.
• Strong communication skills as you will be the bridge between physicists and the software stack.

Preferred Qualifications

• Hands-on experience with quantum hardware, analog/digital control systems, or similar low-level hardware interfaces.
• Experience with experiment control frameworks (ARTIQ, Qiskit Experiments, LabOne Q or similar).
• Rust experience for systems-level components.
• Familiarity with FPGA development and/or ion trap laboratory environments
• Experience designing scheduling systems or job queues for multi-resource environments.
• Contributions to open-source scientific or lab software.

What We Offer

• A rare role where your software directly drives cutting-edge quantum hardware. The results of your work are visible the same day in experimental data.
• Daily collaboration with world-class experimental physicists on a novel trapped-ion platform.
• Access to cutting-edge ion-trap hardware that breaks away from the mainstream.
• Competitive compensation package including equity. Stock option plan that allows you to become a true shareholder in the company.
• Flexible work environment (home office).
• Be part of a dynamic team that operates on four core principles: Excellence, Reliability, Trust & Open Feedback.
• Zurich constantly ranks at or near the top of most liveable cities in the world. Whether you like the arts, sports or nature, Zurich has it all on offer.
• 30 days of holiday.

Impact

The quality of a quantum circuit is only as good as the software running it. You will own the tooling that physicists rely on every day, from calibration to quantum circuit execution. As ZuriQ's hardware scales, so does the complexity of the control layer, and your work will be foundational to that growth.

To Apply: Please submit your CV and a cover letter. We are an equal opportunity employer committed to building a diverse and inclusive team.