Senior Quantum Software Engineer, Compiler [410]

d-wave-quantum; New Haven (CT); Hybrid; USD 125,000 - 187,000; Full time

Job summary

D-Wave Quantum Inc. in New Haven, CT, seeks a Senior Quantum Software Engineer, Compiler, to help advance our compiler and interface to quantum environments.

You will design, implement, and optimize transpilation from general quantum circuits to gate-level sequences for our dual-rail qubit architecture. Collaborate with product managers, quantum physicists, and application engineers to deliver scalable compiler tools; a Master’s degree and 5+ years of experience with C/C++, Python, and quantum

Qualifications

• Master’s degree in CS/EE/Physics or equivalent experience.
• 5+ years of hands-on software development with C, C++, Python or similar.
• Strong understanding of compiler design fundamentals.
• 2+ years developing compiler software/transpiling quantum models with quantum APIs (Qiskit, CUDA‑Q, Q#, Cirq).
• Experience with IRs such as QIR and toolchains like LLVM/MLIR.

Responsibilities

• Collaborate with product managers, scientists and engineers to translate requirements into robust technical specs.
• Convert quantum circuits into implementations for our dual-rail qubit architecture.
• Architect and build efficient, scalable compiler software and tooling.
• Write clean, well-documented code and perform thorough code reviews.
• Troubleshoot performance bottlenecks and improve user experience.
• Provide mentorship on software best practices and teamwork.

Skills

C

C++

Python

Compiler design

Quantum programming

QIR/LLVM/MLIR

Git/CI/CD

Education

Master’s degree in CS/EE/Physics

Tools

LLVM

MLIR

QIR

Qiskit

Cirq

CUDA-Q

Job description

D-Wave Quantum Inc. (NASDAQ: QBTS) is a leader in the development and delivery of quantum computing systems, software, and services. We are the world’s first commercial supplier of quantum computers, and the only company building both annealing and gate-model quantum computers. Our mission is to help customers realize the value of quantum, today. Our quantum computers — the world’s largest — feature QPUs with sub-second response times and can be deployed on-premises or accessed through our quantum cloud service, which offers 99.9% availability and uptime. More than 100 organizations trust D-Wave with their toughest computational challenges. With over 200 million problems submitted to our quantum systems to date, our customers apply our technology to address use cases spanning optimization, artificial intelligence, research and more. Learn more about realizing the value of quantum computing today and how we’re shaping the quantum-driven industrial and societal advancements of tomorrow: www.dwavequantum.com.

About the role

D-Wave is seeking a talented Senior Quantum Software Engineer, Compiler to join our dynamic team and work on developing key pieces of our software platform and tools focusing primarily on our compiler and interface to various quantum programming environments. The ideal candidate will have a strong background in developing tools and transpilation layers converting general quantum circuits into gate and lower-level quantum control sequences. You will work closely with cross-functional teams including application engineers, quantum physicists, and embedded software engineers to design, develop, and deploy innovative solutions.

What you'll do

• Collaborate with product managers, scientists, and other engineers to translate functional requirements into technical specifications and robust solutions
• Work directly with quantum application engineers and quantum physicists to understand how to convert quantum circuits into implementations targeting our industry-leading dual-rail qubit architecture
• Architect and build efficient, reliable, scalable, and maintainable compiler software and tools
• Write clean, well-documented code and conduct thorough code reviews to ensure code quality and maintainability
• Troubleshoot and debug issues, identify bottlenecks, and implement solutions to optimize performance and improve the user experience
• Provide software mentorship and guidance on best practices and help drive adherence to software best practices

About You

• Master’s degree in computer science, electrical/computer engineering, math, physics, chemistry, or equivalent experience with strong physics aptitude
• 5+ years of hands‑on software development experience with C, C++, Python,or another general‑purpose compiled programming language
• Strong understanding of compiler design fundamentals
• 2+ years developing compiler software/transpiling quantum models and using quantum API’s (Qiskit, CUDA‑Q, Q#, or Cirq) to convert quantum circuits into quantum logic and basis gates
• Experience with intermediate representations such as QIR and compiler toolchain technologies including LLVM, MLIR, lexers, and parsers
• Experience programming with one or more high level quantum programming languages and/or models such as Qiskit, CUDA‑Q, Q#, or Cirq
• Proficient with database systems and SQL with hands‑on experience working with relational databases (e.g. PostgreSQL, Oracle)
• Competence with Git version control, build tools, and CI/CD pipelines
• Use of software testing principles and practices, including unit testing, integration testing, and end‑to‑end testing
• Strong problem‑solving skills, attention to detail, and the ability to work in a collaborative team environment
• Excellent communication and interpersonal skills with the ability to effectively communicate complex technical concepts

A D-Waver's DNA

• We look at the future and say “why not”; we see possibilities where others see problems or routines. We show the way ahead and are committed to achieving ambitious goals.
• We practice straight talk and listen generously to each other with empathy. We value different opinions and points of views. We ensure that we connect outside as well as inside to learn from others and inspire each other.
• We hold ourselves accountable for delivering results. We make decisions & take responsibility so that we can act & support each other.
• As leaders we motivate & engage our teams to undertake beyond what they originally thought possible, by developing our teams & creating the conditions for people to grow and empower themselves through enabling & coaching.

Our Compensation Philosophy is Simple but Powerful:

We believe providing D-Wavers with company ownership, competitive pay, and a range of meaningful benefits is the start of creating a culture where people want to give the best they’ve got — not because they’re simply making money, but because they’ve fallen in love with our vision, mission, values, and team.

During the interview process, your Recruiter will review our total rewards (base, equity, bonus, perks, benefit, culture) offerings. The final offer is determined by your proficiencies within this level.

Inclusion:

We celebrate diverse perspectives to drive innovation in our pursuit. Our employees range from distinguished domain experts with decades of experience in their respective fields, to bright and motivated graduates eager to make their mark. Our diverse and innovative team will make you feel appreciated, supported and empower your career growth at D-Wave.

The Fine Print:

No 3rd party candidates will be accepted

It is D-Wave Systems Inc. policy to provide equal employment opportunity (EEO) to all persons regardless of race, color, religion, sex, national origin, age, sexual orientation, gender identity, genetic information, physical or mental disability, protected veteran status, or any other characteristic protected by federal, state/provincial, local law.

The base pay range for this role is:

$125,000 – 187,000 USD (New Haven)