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About the team At Q-CTRL, Quantum Computing Engineering is a global team of software engineers and infrastructure experts,combining deep technical expertise with a startup mindset to deliver real impact through software innovation. Our work is underpinned by robust standards, and by embracing the three virtues. Our team excels in areas across back-end, front-end, machine learning, and platform engineering.   We transform Q-CTRL’s world-leading technological breakthroughs into commercial software products with applications across defense, research, and industry. We work closely with Product, Design, and Research teams to accelerate the path to quantum advantage worldwide. About the role We are seeking a Principal Software Engineer to lead the architectural evolution of Q-CTRL’s product portfolio, enabling faster delivery, greater scalability, and enhanced Product team autonomy. This role is critical in realizing the Opal Suite architecture - a scalable and resilient ecosystem for supporting rapid product innovation and expansion. Reporting to the VP of Software Engineering, you will oversee efforts across multiple teams and departments, working closely with their Technical Leads, Research and Engineering Managers.    As a thought leader in system architecture, you will drive technical excellence across teams, guiding the development of a modular, high-performance architecture that supports seamless integrations and empowers Product teams to innovate independently and at speed.