We are seeking a Quantum Compiler Test Engineer in our Broomfield, CO location to design and execute testing strategies that validate the behavior, correctness, and performance of our quantum compiler stack. This role focuses on black-box validation of compiled quantum programs, ensuring the compiler generates correct, efficient, and hardware-compatible circuits. This role will also contribute to quantum benchmarking and validation frameworks, particularly as the system evolves toward Quantum Error Correction (QEC). If you want to work at the intersection of modern software engineering and cutting-edge quantum computing technology, please apply!

We are seeking a Quantum Compiler Test Engineer in our Broomfield, CO location to design and execute testing strategies that validate the behavior, correctness, and performance of our quantum compiler stack. This role focuses on black-box validation of compiled quantum programs, ensuring the compiler generates correct, efficient, and hardware-compatible circuits. This role will also contribute to quantum benchmarking and validation frameworks, particularly as the system evolves toward Quantum Error Correction (QEC). If you want to work at the intersection of modern software engineering and cutting-edge quantum computing technology, please apply!

Compensation & Benefits:

Non-Incentive Eligible

The pay range for this role is $130,000 – $145,000 annually.

Actual compensation within this range may vary based on the candidate’s skills, educational background, professional experience, and unique qualifications for the role.

Key Responsibilities:

Design and implement black-box testing frameworks to validate quantum compiler behavior.

Develop test plans and test scripts to detect unwanted behaviors such as invalid or inefficient qubit transportation operations, missed parallel gate execution opportunities, incorrect gate scheduling or routing.

Validate compiled circuits against expected logical and physical constraints of the hardware architecture.

Analyze compiled circuits for metrics such as circuit depth, parallelism, transportation overhead, resource utilization.

Develop validation tests for QEC readiness such as logical qubit operations, and error-correction cycles.

Identify and triage compiler misbehaviors, producing actionable reports for compiler engineers.

YOU MUST HAVE:

Bachelor’s degree in physics, Quantum Computing, Computer Science, or related field

5+ years of collegiate and/or industry software development experience

3+ years of post-graduate experience in Python, Qiskit, Cirq, pytket, Guppy, Q#, QASM, or other scientific programming language.

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:

Advanced degree (Master's/PhD) in Quantum Physics, Quantum Computing, Computer Science, or related field preferred.

Familiarity with quantum benchmarking techniques (e.g., randomized benchmarking, cross-entropy benchmarking).

Understanding of quantum error correction (QEC) concepts and protocols.

Experience analyzing circuit scheduling, routing, or hardware constraints.

Excellent communication skills, especially in explaining technical concepts to non-technical stakeholders

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 work

Flexible work schedule

Employer subsidized health, dental, and vision insurance

401(k) match for student loan repayment benefit

Equity, 401k retirement savings plan + 12 Paid holidays and generous vacation + sick time

Paid parental leave

Employee discounts

Quantinuum 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

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