Quantum Compiler Test Engineer - 739

Quantinuum; Broomfield (CO); On-site; USD 130,000 - 145,000; Full time

Benefits offered by this job

Flexible work schedule

Employer-subsidized health, dental, and vision insurance

401(k) match

Paid parental leave

Employee discounts

Job summary

Quantinuum is seeking a Quantum Compiler Test Engineer in Broomfield, CO, specializing in validating the quantum compiler stack. The role focuses on designing testing strategies for black-box validation, ensuring performance and correctness of quantum programs.

Qualifications include a Bachelor's degree and extensive experience in software development and scientific programming. Benefits include a competitive salary of $130,000 – $145,000, flexible work schedules, and employer-subsidized health plans.

Qualifications

• 5+ years of collegiate and/or industry software development experience.
• 3+ years of experience in scientific programming languages.

Responsibilities

• Design and implement black-box testing frameworks.
• Validate compiled circuits against expected hardware constraints.
• Analyze compiled circuits for metrics such as circuit depth and resource utilization.

Skills

Python

Qiskit

Cirq

QASM

Quantum error correction (QEC)

Education

Bachelor's degree

Master's/PhD in Quantum Physics, Quantum Computing, or Computer Science

Job description

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!

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.

Qualifications

• Bachelor's degree minimum.
• 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 languages.
• Due to contractual requirements, must be a U.S. Person defined as a U.S. citizen, permanent resident, green card holder, or 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.

Preferred Qualifications

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

Benefits

• A competitive salary of $130,000 – $145,000 annually.
• Flexible work schedule.
• Employer‑subsidized health, dental, and vision insurance.
• 401(k) match for student loan repayment benefit.
• Equity, 401k retirement savings plan, and 12 paid holidays plus generous vacation and 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.