Job Description

We are seeking an 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 backends — 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.

Key Responsibilities:

• Contribute to the development of compiler front-end (quantum languages), back-end (machine-specific targeting), and optimization (quantum circuit optimization and classical optimization) passes operating on both classical and quantum operations

• Benchmark, profile, and optimize the execution of our 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

YOU MUST HAVE:

• Bachelors 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 or green card holder, workers granted asylum or refugee status
• Due to national security requirements imposed by the U.S. Government, candidates for this position must not be a People's Republic of China national or Russian national unless the candidate is also a U.S. citizen.

WE VALUE:

• Masters/PhD degree in Computer Science 

• History of working with and developing for the LLVM toolchain

• Ability to solve complex problems and ability to communicate how you did it

• 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 with development of application-specific algorithms, especially where exact/optimal solutions are computationally intractable

• Proficiency with software testing and deployment tools

Quantinuum is the world leader in quantum computing. The company’s quantum systems deliver the highest performance across all industry benchmarks. Quantinuum’s over 650 employees, including 400+ scientists and engineers, across the US, UK, Germany, and Japan, are driving the quantum computing revolution.By uniting best-in-class software with high-fidelity hardware, our integrated full-stack approach is accelerating the path to practical quantum computing and scaling its impact across multiple industries.By joining Quantinuum, you’ll be at the forefront of this transformative revolution, shaping the future of quantum computing, pushing the limits of technology, and making the impossible possible.What’s in it for you?A competitive salary and innovative, game-changing workFlexible work scheduleEmployer subsidized health, dental, and vision insurance401(k) match for student loan repayment benefitEquity, 401k retirement savings plan + 12 Paid holidays and generous vacation + sick timePaid parental leaveEmployee discountsQuantinuum is an equal opportunity employer. You will be considered without regard to age, race, creed, color, national origin, ancestry, marital status, affectional or sexual orientation, gender identity or expression, disability, nationality, sex, or veteran status. Know Your Rights: Workplace discrimination is illegal