Quantum Software Developer - Performance

Job Description

Job Title: Quantum Software Developer - Performance. Location: Toronto, ON, Canada

You will contribute to software optimization, benchmarking, and development of the PennyLane-Lightning simulator suite, ensuring PennyLane remains a leading quantum computing framework.

Duties:

• Develop benchmarking tools for the compilation and execution pipeline, tracking quantum resources.
• Build high-performance software components adapted to evolving hardware platforms;
• Convert quantum algorithm descriptions into efficient, readable software implementations.
• Interpret and communicate complex quantum software concepts to the broader team;
• Participate in software system design, specification, and quality assurance, including requirements gathering, architecture design, documentation, and validation.
• Lead best practices in software development, including continuous integration, unit testing, and code review.

Qualifications:

• BSc in Computer Science, Engineering, Physics, Math, or a related field.
• Education or training in quantum computing.
• Proficiency in Modern C++ (C++17/20) and Python;
• Strong understanding of computer architecture (CPU, GPU, memory hierarchy) and hands-on experience with performance optimization tools (e.g., perf, scalene, valgrind).
• Ability to diagnose and resolve complex issues in compiled and interpreted environments using industry-standard debugging tools.
• MSc or PhD in a related field is preferred;
• Experience in developing quantum workflows, code parallelization, and scalable scientific workloads on HPC, supercomputers, or cloud platforms (AWS, Azure, GCP).

Benefits and Instructions:

• Work in a collaborative, inclusive, and innovative environment.
• Contribute to cutting-edge quantum computing projects that may impact real-world applications.
• Xanadu provides a barrier-free workplace and support for accommodations during recruitment;
• Applicants must be authorized to work in Canada and can indicate work permit details if applicable.
• To apply, submit your resume and contact recruiting@xanadu.ai for any inquiries.