Quantum Compiler Engineer

We are seeking a Quantum Compiler Engineer for our Broomfield, CO location.

Our compiler team builds the software that makes our quantum computers useful. We turn quantum programs into hardware‑ready instructions that can run efficiently on our trapped‑ion systems, and we solve the hard compiler problems required to scale performance as the technology advances.

As a Quantum Compiler Engineer, you will develop the languages, optimization passes, and hardware‑aware compilation strategies that power next‑generation quantum computing. You will work across the stack — from front‑end tooling to real‑time, high‑performance back‑ends — with a focus on performance, correctness, and scalability.

This role is ideal for someone who wants to tackle deep compiler challenges in a fast‑moving R&D environment. You will help shape how quantum programs are optimized, routed, and executed, and your work will directly influence the capabilities of our quantum systems.

• Contribute to the development of compiler front‑end (quantum languages), back‑end (machine‑specific targeting), and optimization passes (quantum circuit optimization and classical optimization) operating on both classical and quantum operations
• Benchmark, profile, and optimize the execution of the compiler and the quality and performance of quantum programs it generates
• Collaborate on the design and implementation of a compiler targeting a real‑time, distributed execution environment
• Work with a diverse team including physicists and other engineering disciplines to solve complex problems
• Write high quality, maintainable code in an R&D and rapid prototyping environment

• Bachelor’s Degree (minimum)
• Minimum 2+ years of industry or post‑graduate experience in an engineering, lab, or R&D environment
• Minimum 3+ years of programming experience with Rust, C++, or similar language
• Coursework in compiler fundamentals and a strong understanding of compiler design
• Due to contractual requirements, must be a U.S. Person defined as U.S. citizen, permanent resident, green card holder, workers granted asylum or refugee status
• Due to national security requirements imposed by the U.S. government, candidates must not be a People's Republic of China national or Russian national unless the candidate is also a U.S. citizen

• History of working with and developing for the LLVM toolchain
• Ability to solve complex problems and communicate solutions effectively
• Track‑record using Python or other rapid prototyping and development tools to solve complex challenges
• Rust development experience with a track‑record of contribution to open‑source and commercial projects
• Demonstrated ability to work with a variety of algorithms, including tree, graph, SAT, and, at times, machine learning and other algorithms
• Experience developing application‑specific algorithms where exact/optimal solutions are computationally intractable
• Proficiency with software testing and deployment tools

• Pay range: $136,000 – $173,000 annually. Actual compensation may vary based on skills, education, experience, and qualifications.
• Competitive salary
• Employer‑subsidized health, dental, and vision insurance
• 401(k) match for student loan repayment benefit
• Equity and 401(k) retirement savings plan
• 12 paid holidays and generous vacation + sick time
• Paid parental leave

Quantinuum is an equal‑opportunity employer. All qualified applicants will receive consideration without regard to age, race, creed, color, national origin, ancestry, marital status, sexual orientation, gender identity or expression, disability, nationality, sex, or veteran status. Workplace discrimination is illegal.