Senior Software Engineer

Summary

Join PsiQuantum's OS Core team as a Software Engineer to build simulation and emulation systems for photonic quantum computers. Collaborate with engineers and scientists across multiple disciplines. Design and implement high-performance simulation software, create accurate models of electronic control systems, and develop real-time signal processing algorithms. Validate simulation models against experimental data and participate in design and code reviews. Contribute to the future of computing in a foundational way. This role requires a Bachelor's degree in a technical discipline, 5+ years of software development experience, and proficiency in systems programming languages and scientific computing.

Requirements

• Bachelors degree in a technical discipline, or equivalent experience
• Strong programming ability in at least one systems programming language (C++, Rust, C)
• 5+ years of software development experience in a technical computing environment
• Demonstrated experience designing and implementing simulation software
• Track record of optimizing code for performance in computationally intensive applications
• Experience working with hardware-in-the-loop testing or hardware/software co-design
• Proven ability to work effectively in cross-functional teams
• Proficiency with scientific computing libraries and numerical methods
• Experience with electronic circuit modeling and simulation techniques
• Knowledge of signal processing fundamentals and filter design
• Understanding of concurrent programming and parallel computing concepts
• Familiarity with version control systems and collaborative development workflows
• Excellent problem-solving abilities for debugging complex simulations

Responsibilities

• Design and implement high-performance simulation software for photonic quantum computing electronic subsystems
• Create accurate models of electronic control systems that interface with photonic components
• Develop real-time signal processing algorithms for quantum state measurement and feedback
• Collaborate with hardware engineers to validate simulation models against experimental data
• Participate in design and code reviews
• Collaborate across software, hardware, and research teams at PsiQuantum
• Testing and maintainence of control software
• Document code, models, and simulation architecture for knowledge transfer

Preferred Qualifications

• Experience with internals of QEMU or other computer emulators
• Knowledge of quantum computing fundamentals and quantum information theory
• Familiarity with photonics principles and integrated photonic devices
• Experience with Python or Julia for scientific computing and visualization
• Understanding of control systems theory and feedback mechanisms
• Proficiency with GPU programming (CUDA, OpenCL)
• Experience with distributed computing frameworks
• Experience with RPCs, RESTful APIs, IDLs, data serializations (protobufs, gRPC, JSON, etc.)
• Experience with Apache Airflow or other workflow management platforms

Benefits

• Equity
• Benefits