Senior Quantum Software Engineer (Compiler)

TL;DR

Senior Quantum Software Engineer, Compiler (Quantum): Developing compiler and transpilation layers converting general quantum circuits into gate-model and lower-level quantum control sequences for dual-rail qubit architecture with an accent on efficient, scalable, and maintainable tools. Focus on architecting compiler software, integrating with quantum APIs like Qiskit and Cirq, optimizing performance, and troubleshooting bottlenecks.

Location: New Haven, CT

Salary: 124,360 – 186,540 USD (New Haven)

Company

Leader in quantum computing systems, software, and services; world's first commercial supplier of quantum computers building both annealing and gate-model systems.

What you will do

• Collaborate with product managers, scientists, and engineers to translate requirements into technical specifications and solutions.
• Work with quantum application engineers and physicists to convert quantum circuits into implementations for dual-rail qubit architecture.
• Architect and build efficient, reliable, scalable compiler software and tools.
• Write clean code, conduct code reviews, and mentor on best practices.
• Troubleshoot issues, identify bottlenecks, and optimize performance.

Requirements

• Master’s degree in computer science, electrical/computer engineering, math, physics, chemistry, or equivalent with strong physics aptitude.
• 5+ years hands-on software development with C, C++, Python, or similar.
• Strong understanding of compiler design fundamentals.
• 2+ years developing quantum compilers/transpilers using Qiskit, CUDA-Q, Q#, or Cirq.
• Experience with QIR, LLVM, MLIR, lexers, parsers; high-level quantum languages.
• Proficiency with SQL, relational databases (e.g., PostgreSQL); Git, CI/CD, testing practices.

Culture & Benefits

• Company ownership, competitive pay, equity, bonus, and comprehensive benefits reviewed in interviews.
• Diverse team with domain experts and graduates; focus on innovation, accountability, and growth.
• Straight talk, empathy, ambitious goals, and team motivation through coaching.