Senior Software QA Engineer

Quantum computing holds the promise of humanitys mastery over the natural world but only if we can build a real quantum computer. PsiQuantum is on a mission to build the first real useful quantum computers capable of delivering the worldchanging applications that the technology has long promised. We know that means we will need to build a system with roughly 1 million qubits that supports fault tolerant error correction within a scalable architecture and a data center footprint.

By harnessing the laws of quantum physics quantum computers can provide exponential performance increases over todays most powerful supercomputers offering the potential for extraordinary advances across a broad range of industries including climate energy healthcare pharmaceuticals finance agriculture transportation materials design and many more.

PsiQuantum has determined the fastest path to delivering a useful quantum computer years earlier than the rest of the industry. Our architecture is based on silicon photonics which gives us the ability to produce our components at Tier1 semiconductor fabs such as GlobalFoundries where we leverage highvolume semiconductor manufacturing processes the same processes that are already producing billions of chips for telecom and consumer electronics applications. We also benefit from the quantum mechanics reality that photons dont feel heat or electromagnetic interference allowing us to take advantage of existing cryogenic cooling systems and industry standard fiber connectivity.

In 2024 PsiQuantum announced two governmentfunded projects to support the buildout of our first Quantum Data Centers and utilityscale quantum computers in Brisbane Australia and Chicago Illinois. Both projects are backed by nations that understand quantum computings potential impact and the need to scale this technology to unlock that potential. And we wont just be building the hardware but also the fault tolerant quantum applications that will provide industrytransforming results.

Quantum computing is not just an evolution of the decadesold advancement in compute power. It provides the key to mastering our future not merely discovering it. The potential is enormous and we have the plan to make it real. Come join us.

Theres much more work to be done and we are looking for exceptional talent to join us on this extraordinary journey!

Team Overview

PsiQuantums Quantum Applications Software Team is dedicated to creating a software environment where quantum application developers can discover build utilize optimize and visualize largescale quantum algorithms for classically intractable problems. As we continue to scale were building out a QA function that bridges classical software QA best practices with cuttingedge quantum software development.

Role Summary

We are seeking an experienced Senior Software Quality Assurance (QA) Engineer with a robust background in fullstack enterprise QA automation frameworks CI/CD and QA strategy definition. This role will establish QA processes conduct QA activities define quality metrics and mentor team membersincluding those with deep quantum domain knowledge but limited QA specializationultimately laying the foundation for a dedicated quantum QA group.

This role bridges classical QA expertise with cuttingedge quantum development creating a new paradigm for testing hybrid software systems. Youll pioneer QA practices for quantum applications while upskilling domain experts shaping the future of quantum software reliability.

This is a handson technical leadership role; youll split time between coding/testing frameworks (e.g. Selenium Xray) and mentoring developers. Youll personally build foundational test infrastructure while scaling the teams QA capabilities.

• Lead the testing efforts and design and implementation of QA processes and best practices that align classical enterpriselevel rigor with the unique challenges of emerging quantum software.
• Train and mentor developers and engineers from a quantum background in QA methodologies helping them adopt industryleading testing strategies.
• Drive both the tactical (handson test framework development) and strategic (quality metrics team building process definition) aspects of QA in a rapidly evolving R&Dfocused environment.

Responsibilities:

1. Test Automation and Integration Frameworks
   1. HandsOn Framework Development: Design and implement test automation suites (using tools like Pytest Selenium Robot etc. to achieve reliability maintainability and reproducibility across software interfaces.
   2. Test Development: Write and maintain automated test scripts (e.g. Selenium for UI Pytest for APIs Xray for test management) while guiding others to adopt these frameworks.
   3. CrossFunctional Collaboration: Work with product DevOps and quantum domain experts to develop integration functional and system tests in a highly technical environmentpotentially involving HPC or containerized infrastructure.
2. Define and Enhance QA Strategy
   1. Establish Comprehensive QA Processes: Develop QA frameworks tailored to hybrid classicalquantum software systems including defining key quality metrics (e.g. defect density coverage mean time to detect/fix).
   2. Integrate QA in CI/CD: Embed QA best practices into automated pipelines ensuring seamless testing monitoring and reporting.
3. Build and Mentor a Hybrid Team
   1. Knowledge Transfer: Serve as the QA subject matter expert training quantum software developers on testing strategies and concepts (e.g. regression testing test hierarchies) defect management and continuous improvement processes.
   2. Team Leadership: Oversee the gradual formation of a quantum QA group defining roles and responsibilities to scale as the team grows.
   3. Cultural Leadership: Foster a qualityfirst culture by coaching quantum developers on risk assessment test case design and defect prioritization in R&D environments.
4. Performance Scalability and System Testing
   1. Performance & Scalability: Define performance benchmarks stresstesting protocols and scalability testing strategies for largescale or domainspecific workloads (quantum simulations HPC etc..
   2. System EndtoEnd Testing: Implement comprehensive testing frameworks that validate the entire software ecosystem from frontend interfaces to backend computational layers.
5. Continuous Improvement & Agile Coordination
   1. Iterative Development: Collaborate with developers and product managers in Agile or iterative environments refining test plans and acceptance criteria each sprint.
   2. Quality Metrics & Monitoring: Establish feedback loops collect QA metrics and conduct rootcause analyses to evolve testing processes continuously.

Required Experience/Qualifications:

• 8 years in QA experience: Experience in handson manual testing and test automation development with frameworks like Selenium Cypress or Playwright.
• 4 Years in QA Leadership: Demonstrable experience leading QA teams in fullstack highly technical environments ideally spanning frontend backend and infrastructure layers.
• Proven QA Strategy & Automation Track Record: A history of establishing scalable QA processes implementing test automation frameworks and integrating QA in CI/CD pipelines.
• Mentorship & Collaboration: Demonstrated success mentoring or training crossdisciplinary teams with the ability to translate classical QA methods into domainspecific contexts.
• Software Engineering Foundations: Solid understanding of software engineering principles (OOP version control branching strategies) and proficiency in scripting languages (e.g. Python).
• FrontEnd & BackEnd Testing: Experience testing web UIs REST APIs microservices data validation and output verification.
• Complex Systems & R&D: Comfort operating in a researchoriented or emerging technology setting adapting QA processes to novel and sometimes ambiguous requirements.
• Bachelors Degree: In Computer Science Engineering or a related field.

Bonus / Preferred

• Quantum Domain Exposure: Familiarity with quantum software tools frameworks and SDKs (e.g. Qiskit Cirq) or a willingness to learn and adapt best practices for quantum systems.
• AIDriven QA: Experience with AI/MLdriven QA tools (e.g. Applitools Testim Sealights) to enhance test generation predictive analytics for flaky tests or adaptive test maintenance in complex systems.
• HPC or LargeScale Testing: Experience with HPC cluster testing container orchestration (Docker/Kubernetes) or largescale performance testing is a plus.
• Agile/Scrum Experience: Background in managing QA within agile or DevOps teams.
• DevOps Processes: Experience with CI/CD platforms (e.g. Jenkins GitHub Actions) or cloudbased testing (AWS/Azure/GCP).

PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race color religion sex (including pregnancy childbirth or related medical conditions) gender identity gender expression national origin ancestry citizenship age physical or mental disability military or veteran status marital status domestic partner status sexual orientation genetic information or any other basis protected by applicable laws.

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