Senior Embedded Software Engineer - High-Performance Computing Orchestration

Infleqtion • Louisville, CO

11h

About The Position

Within Infleqtion’s Quantum Computing Product Group, we are seeking a Senior Embedded Software Engineer to develop high-performance software systems that integrate classical computing resources with next-generation quantum hardware. You will collaborate across quantum and classical domains to design, implement, and improve performance-critical software that orchestrates computation and data movement across CPUs, GPUs, FPGAs, high-speed interconnects, and quantum systems. You will work closely with engineers and scientists across software and hardware boundaries to enable scalable quantum computing. Prior quantum-computing experience is valuable but not required; relevant backgrounds include high-performance computing, distributed systems, scientific, embedded, or other performance-critical computing applications.

Requirements

• A Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, Physics, or a related technical field, or equivalent practical experience.
• 5+ years of professional embedded software development experience, or equivalent demonstrated experience developing complex technical systems.
• Strong programming experience in one or more systems or scientific-computing languages such as C++, C, Rust, or Python.
• Experience developing software for performance-critical, distributed, embedded, scientific, or high-performance computing systems.
• Strong software engineering fundamentals, including testing, debugging, version control, code review, and maintainable software design.
• Experience working in Linux environments.
• Ability to diagnose complex problems across multiple layers of a computing system.
• Strong understanding of computer systems fundamentals, such as concurrency, memory, networking, data movement, latency, and throughput.
• Ability to work effectively across engineering disciplines and communicate complex technical concepts clearly.
• You do not need previous quantum-computing experience to be successful in this role. We are looking for exceptional software and systems engineers who are excited to learn the quantum domain.

Nice To Haves

• Ability to learn quickly, reason about complex computing systems and turn difficult requirements into reliable software
• High-performance computing (HPC) systems, supercomputing environments, or HPC job schedulers such as Slurm or PBS.
• GPU or accelerator programming, including CUDA or similar programming models.
• Distributed systems, high-performance networking, or low-latency communication.
• RoCE, RDMA, high-speed Ethernet, InfiniBand, or other high-bandwidth interconnect technologies.
• Heterogeneous computing involving CPUs, GPUs, FPGAs, or other accelerators.
• Embedded Linux, firmware, device drivers, or hardware/software integration.
• Performance profiling, benchmarking, modeling, and optimization.
• Scientific computing, numerical computing, or research software.
• Real-time or latency-sensitive systems.
• FPGA-accelerated computing.
• Quantum computing, quantum control, quantum error correction, or quantum software frameworks such as CUDA-Q.
• Developing software in R&D or rapid-prototyping environments.
• Collaborating with external scientific, academic, government, or technology partners.
• Open-source software development.

Responsibilities

• Designing, developing, testing, and maintaining high-quality software for high-performance quantum-classical computing systems.
• Building software components and interfaces that coordinate computation across classical and quantum computing resources.
• Developing systems that operate under demanding latency, throughput, bandwidth, and reliability requirements.
• Integrating software with heterogeneous computing platforms including CPUs, GPUs, FPGAs, accelerators, and high-speed networking or interconnect technologies.
• Analyzing system performance, identifying bottlenecks, and improving scalability and reliability.
• Developing tools, benchmarks, test infrastructure, and observability capabilities for complex computing systems.
• Troubleshooting challenges spanning applications, operating systems, drivers, runtimes, networking, firmware, and hardware.
• Collaborating with software engineers, physicists, electrical engineers, systems engineers, external technology partners, and researchers to develop new computing capabilities.
• Writing maintainable, well-tested software and contributing to code reviews, design reviews, and technical documentation.
• Providing technical guidance and mentorship to other engineers.
• Rapidly evaluating and prototyping new technologies as the quantum and high-performance computing ecosystem evolves.

Benefits

• Eligibility to participate in our annual incentive plan.
• 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs
• Employer funded Health Savings Account
• Unlimited Paid Time Off
• 401(k) Matching Programs
• Company paid Life and AD&D Insurance
• Flexible Healthcare Savings Account
• Paid FMLA Leave
• Paid Maternity/Paternity Leave
• Employer Assistance Program
• Student Loan Repayment

What This Job Offers

• Job Type: Full-time
• Career Level: Senior