Senior HPC Engineer

Job description

Alice & Bob is developing the first universal, fault-tolerant quantum computer to solve the world’s hardest problems. The quantum computer we envision building is based on a new kind of superconducting qubit: the Schrödinger cat qubit 🐈‍⬛. In comparison to other superconducting platforms, cat qubits have the astonishing ability to implement quantum error correction autonomously! We're a diverse team of 250+ brilliant minds from over 35 countries united by a single goal: to revolutionise computing with a practical fault-tolerant quantum machine. Are you ready to take on unprecedented challenges and contribute to revolutionising technology? Join us, and let's shape the future of quantum computing together! **About the role:** As a Senior HPC Engineer, you will play a central role in scaling and optimizing the computational backbone of our chip simulation workflows. Collaborating closely with quantum theorists, experimentalists, and software engineers, you will design, optimize, and maintain high-performance scientific software and compute backends that support quantum chip design and calibration. ### Responsibilities: - Drive performance improvements of scientific computing tools using SOTA HPC techniques across CPU and GPU architectures in both cloud and on-premises environments. - Profile, diagnose, and resolve performance bottlenecks at all levels (e.g., algorithm design, software implementation, hardware-level optimization). - Build and scale distributed simulation pipelines to support increasingly complex quantum system models. ### Requirements: - PhD or Master’s degree in scientific computing, applied mathematics, or computer science. - 5+ years of experience in designing, developing, testing, maintenance, and performance optimization of production-grade scientific software, including a minimum of 2 years in an industrial environment. - Strong programming expertise in Python, JAX and Rust. - Demonstrated HPC skills, spanning CPU parallelization (MPI, OpenMP), GPU computing, scheduling and orchestration of workloads across heterogeneous systems, performance profiling and optimization. - Good knowledge of finite precision arithmetics and numerical methods for linear algebra. - Professional-level English proficiency, both written and spoken. **Nice to have :** - Strong delivery mindset with a focus on impact and execution. - Excellent teamwork, communication, and documentation skills. - Hands-on experience operating within agentic AI environments, following established best practices.