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Added 1 month ago
Senior Infrastructure Engineer
Upstart
Canada
The Data Platform Engineering team (Part of Upstart's Decisioning & Data) provides developer tools, frameworks, and scalable data infrastructure as shared services across Upstart. The…
Added 1 month ago
Actuarial Manager, Large Accounts Pricing
Aviva
Toronto, ON · Markham, ON
Strong technical capabilities; experience with SAS, VBA, Python, R, or other analytical tools.
Added 1 month ago
Senior Actuarial Analyst, Earnix
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Markham, ON
Proficiency in programming (Python) and data manipulation tools.
Added 1 month ago
FS
Senior DevOps Engineer - Digital Platforms
Four Seasons Hotels and Resorts
Toronto, ON · Four Seasons Corporate Headquarters Toronto
- Full-time
CI/CD, Release Engineering & Developer Experience
Added 1 month ago
X
Quantum Software Developer - Performance
Xanadu
Toronto, ON
- Full-time
Proficiency in high-performance Modern C++ (C++17/20 preferred) and Python.
Added 1 month ago
X
System Software Developer - Performance
Xanadu
Toronto, ON
- Full-time
Proficiency in high-performance Modern C++ (C++17/20 preferred) and Python.
Added 1 month ago
X
Software Developer - Frontend (Intermediate to Senior)
Xanadu
Toronto, ON
- Full-time
As a Software Developer, you will help build out the pennylane.ai ecosystem of products. The goal of pennylane.ai is to help pioneer quantum software development as a discipline and spread…
Added 1 month ago
X
AI Developer - Agentic System
Xanadu
Toronto, ON
- Full-time
As an AI Developer at Xanadu, you will play a crucial role in integrating generative AI into our R&D methodologies. This unique position allows you to contribute to the development of our…
Added 1 month ago
Data Scientist
Lantern
Edmonton, AB
Explore and prepare structured and unstructured data; perform feature engineering, statistical analysis, and model selection using Python, SQL, Spark, and Databricks notebooks.
Added 1 month ago
X
Quantum Software Developer - PennyLane Core
Xanadu
Toronto, ON
- Full-time
Proven experience in production-grade Python software development with focus on writing clean, modular and maintainable code.
Added 1 month ago
X
Quantum Software Developer - FTQC Software (Intermediate to Senior)
Xanadu
Toronto, ON
- Full-time
Proven experience in production-grade Python and C++ software development with a focus on writing clean, modular and maintainable code.
Added 1 month ago
M
Firmware Developer
Miovision
Remote, Canada
- $85,000 to $115,000 CAD / year
- Full-time
- Remote
…rock-solid foundation under the hood. We are looking for a Firmware Developer to build the low-level hardware abstraction layers (BSP) and on-device software stacks that act as the engine…
Added 1 month ago
J
Staff Data Scientist, Applied ML
Jobber
Remote, Canada
- Full-time
- Remote
Added 1 month ago
RB
Senior Data Engineer
Royal Bank of Canada
Vancouver, BC
- Full-time
…leveraging Informatica (PowerCenter/IDMC) and Snowflake, while using Python for advanced scripting, customization, and automation using frameworks such as Django, FastAPI, or Flask, and…
Added 1 month ago
D
Software Engineer – Messaging & Async Platform Infrastructure
Deel
Canada
- Full-time
Proficiency in one or more programming languages such as Typescript, Go, Python, or similar.
Added 1 month ago
E
AI Software & Data Engineering Developer
Ericsson
Ottawa, ON
- Full-time
Ericsson is looking for an AI Software & Data Engineering Developer to join our team in Ottawa, Canada. In this role, you will contribute to building new functionality as part of Ericsson's…
Added 1 month ago
R
Senior Data Engineer
RBC
Vancouver, BC
- Full-time
…leveraging Informatica (PowerCenter/IDMC) and Snowflake, while using Python for advanced scripting, customization, and automation using frameworks such as Django, FastAPI, or Flask, and…
Added 1 month ago
PV
Senior Developer
Pet Valu
Markham, ON
- Full-time
We are seeking a seasoned and forward-thinking Senior Applications Developer with deep expertise in cloud-native application development, particularly within the Microsoft Azure ecosystem.…
Added 1 month ago
V
Systems Engineer – End-to-End Software Diagnostics & Observability
Vertage
Ottawa, ON · Kanata, ON
- Contract
Added 1 month ago
FS
Senior Analyst, Macro Surveillance and Analytics
Financial Services Regulatory Authority of Ontario (FSRA)
Toronto, ON
- Full-time
…to analyze, test, validate, visualize, and report data (e.g. Python, SQL scripting, SQL Server Reporting Services, PowerBI Report Server,…
Added 1 month ago
DM
Cloud Platform Engineering Intern
Dotdash Meredith
Edmonton, AB · AB · Canada - Alberta
- Full-time
Foundational programming or scripting experience in one or more languages such as Python, Go, JavaScript/TypeScript, or Bash.
Added 1 month ago
B
Data Engineer
BMO
Toronto, ON · SCC
- Full-time
Hands on experience with SQL, NoSQL, Python, Spark, Scala
Added 1 month ago
A
AI Engineer
Astek
AB · Edmonton, AB
- $130,000 to $178,000 CAD / year
- Full-time
Microsoft Copilot • Copilot Studio • Azure OpenAI • Claude • Azure AI Foundry • Retrieval-Augmented Generation (RAG) • AI Agents • Python • Azure Cloud Services • CI/CD
Added 1 month ago
GIS Analyst
Town of Orangeville Human Resources
Orangeville, ON
Experience developing GIS solutions, dashboards, web applications, or automation tools (e.g., Python scripts, FME workflows) to enhance organizational processes and improve data…
Added 1 month ago
Analyst, Settlements, Trade Ops
Questrade Financial Group
Toronto, ON
Knowledge in Google Suite, Google Apps Script, Microsoft, Power BI, SQL and Python an asset;

Xanadu

Quantum Software Developer - Performance

Toronto, ON, Canada

The base salary range is 120,000 - 160,000 CAD. · Full-time

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Job details

Pay: The base salary range is 120,000 - 160,000 CAD.
Job type: Full-time
Posting language: English
Posted: Sep 29, 2026

Original job description

About Xanadu

Xanadu’s mission is to build quantum computers that are useful and available to people everywhere.

At Xanadu, we are learners, innovators, researchers, collaborators and problem solvers. We are creating something that has never been built before. Few people in their life will be able to be a part of something like this, where if we are successful, the technologies we develop will solve some of the world’s most challenging problems, and literally change the world. And that is something to be excited about!

Your Role and Responsibilities

Building a high-performance software stack that makes optimal use of quantum hardware resources is key to realizing early, game-changing applications of quantum computing. As part of the PennyLane Performance Team, you will be responsible for the performance monitoring and benchmarking tooling for the PennyLane & Catalyst quantum software stack, as well as developing high-performance extensions including the PennyLane-Lightning simulator suite, ensuring PennyLane is the highest-performing framework for quantum computing.

You will:

Develop the framework for benchmarking the compilation and execution pipeline, tracking quantum resources through the stack, and profiling the quantum software.
Develop high-performance software components, adapting to new hardware platforms and programming paradigms.
Convert abstract descriptions of algorithms into efficient & understandable software implementations.
Interpret and communicate complex concepts to the wider team.
Participate in software system specification, design, and quality assurance (e.g., requirements gathering, defining software architecture, documentation, verification & validation, etc.).
Provide leadership in software best practices, including continuous-integration pipelines, unit testing, & code review.

Basic Qualifications and Experience:

BSc in Computer Science, Engineering, Physics, Math, or a related field.
Demonstrated education or training in quantum computing.
Proficiency in high-performance Modern C++ (C++17/20 preferred) and Python.
Deep understanding of computer architecture (CPU, GPU, memory hierarchy) coupled with hands-on experience in optimizing code for runtime and memory efficiency using professional profiling tools (e.g. perf, scalene, valgrind).
Proven ability to rapidly diagnose and resolve complex issues across compiled and interpreted environments using industry-standard debuggers.

Preferred Knowledge and Experience:

MSc, PhD in Computer Science, Engineering, Physics, Math, or a related field.
Expertise in quantum computing, as demonstrated by extensive coursework, thesis, or peer-reviewed publications.
Experience with writing complex quantum workflows and optimizing the use of quantum resources.
Familiarity with code parallelization and accelerators: multithreading (e.g., OpenMP, C++ threads), multiprocessing (e.g., MPI), GPUs (e.g. CUDA, HIP/ROCm) or compiler offload directives.
Experience in low-level systems programming (e.g. direct memory management, low-latency communication, heterogeneous hardware peripherals)
Experience in designing and implementing scalable & reproducible scientific workloads on HPC / supercomputer platforms or cloud hardware (e.g., AWS, Azure, GCP).

Values

Our values are important. They are fundamental and lay the foundation for culture at Xanadu. Learn more about our values here.

This is for a new position. Your base salary will be determined based on your location, experience, and internal benchmarks. The base salary range is 120,000 - 160,000 CAD. You will also be eligible for equity and benefits.

Our values are important. They are fundamental and lay the foundation for culture at Xanadu. Learn more about our values here.

We are an equal opportunity employer and encourage candidates of all backgrounds to apply. We are committed to building an inclusive, safe, and equitable culture and fostering an environment where our employees feel included, valued, and heard. We are committed to meeting the needs of all individuals and support a barrier-free workplace. Should you require accommodations at any point during the recruitment process please contact Recruiting at recruiting@xanadu.ai.

Please be advised that we may use artificial intelligence (AI) tools to assist in the screening and assessment of applicants for this position. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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More about this job

Responsibilities

Develop benchmarking, performance monitoring, and profiling tools for the PennyLane and Catalyst quantum software stack, and build high-performance software components such as the PennyLane-Lightning simulator suite. Translate quantum algorithms into efficient implementations, support new hardware platforms, and contribute to software design, quality assurance, documentation, and engineering best practices.

Requirements

A bachelor's degree in computer science, engineering, physics, mathematics, or a related field and education or training in quantum computing are required. Candidates should be proficient in modern C++ and Python, understand computer architecture, have hands-on experience optimizing runtime and memory performance with profiling tools, and be able to diagnose complex issues; advanced degrees and experience with parallel computing, accelerators, low-level systems, and HPC are preferred.

Skills

Modern C++
Python
Quantum Computing
High-Performance Computing
Performance Profiling
Computer Architecture
Code Optimization
Quantum Software Development
Benchmarking
Memory Management
Parallelization
GPU Programming
Software Architecture
Continuous Integration
Unit Testing
Debugging

Benefits

Equity
Benefits

Visa sponsorship

Not detected in the job text

Keywords

Xanadu
PennyLane
Catalyst
PennyLane-Lightning
Quantum Computing
Quantum Software Stack
Quantum Hardware
Modern C++
C++17
C++20
Python
Benchmarking
Performance Monitoring
Profiling
Computer Architecture
CPU
GPU
Memory Hierarchy
Perf
Scalene
Valgrind
OpenMP
MPI
CUDA
HIP/ROCm
Compiler Offload Directives
HPC
Supercomputing
AWS
Azure

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