Senior Software Engineer, Q-CTRL

• This role is ideal for someone passionate about backend engineering and systems-level programming, with an interest in quantum computing and scientific software
• Bachelor’s degree in Computer Science, Engineering, or related field
• 3+ years of backend software development experience with Python
• Proven experience writing maintainable, testable code in a professional setting
• Proven ability to mentor junior team members and accelerate their contributions
• Strong collaboration and communication skills across cross-functional teams
• Experience with quantum hardware control systems (or similar) or pulse-level programming (e.g., OpenQASM3, Qiskit Pulse, Qua)
• A track record of leading or mentoring in technical projects, particularly in early-stage or research and development-heavy environments

Desirable

• As a Software Engineer on the Boulder Opal team, you will work with brilliant engineers and researchers to design and build a scalable, high-performance backend system while directly contributing to our quantum controller infrastructure
• A key part of your role will be maintaining and evolving the compiler stack that translates OpenQASM3 + OpenPulse programs for low-level quantum controllers, bridging the gap between high-level quantum programming and physical execution on QPUs
• You will collaborate with cross-functional teams, product, infrastructure, frontend, and research, ensuring end-to-end delivery of cutting-edge solutions that power our SDKs and cloud-based offerings
• Build the backbone of quantum tech: Design, develop, and optimize scalable backend services in Python
• Own the compiler stack: Maintain and evolve the compiler that translates OpenQASM3 + OpenPulse programs into low-level controller instructions
• Bridge research and engineering: Work closely with world-class researchers and quantum engineers, translating experimental needs into production-ready code and debugging real-world execution challenges
• Experiment on quantum hardware: Get hands-on with QPUs, validating compiler output and controller behaviors through real device experiments
• Engineer for performance: Deliver high-efficiency service-to-service communication using modern protocols (gRPC, GraphQL, REST)
• Raise the bar on quality: Shape and enforce best practices for clean, secure, and reliable code while contributing to robust testing and documentation
• Shape the future stack: Help define the software practices, tools, and design patterns that will power the next generation of quantum control systems
• Deliver end-to-end solutions: Collaborate with product, frontend, and infrastructure teams to ship integrated solutions used across Q-CTRL’s products
• Other duties within the Employee's skills and experience, or with reasonable training