Backend Engineer, Quantum Platform & Compiler

Airbus Ventures; San Francisco (CA); On-site; USD 130,000 - 170,000; Full time

Job summary

Q-CTRL is seeking a Backend Software Engineer to join the Boulder Opal team in San Francisco. You will build scalable backend services in Python and C++, design APIs, and deliver cloud-native systems for our quantum software platform.

You’ll collaborate with compiler engineers and researchers to integrate new capabilities, improve performance and reliability, and help shape the underlying infrastructure while growing expertise in compiler tech and quantum computing.

Qualifications

• Bachelor's degree in Computer Science, Engineering or related discipline.
• Proficient in Python.
• Strong C++ experience.
• Experience building backend systems or distributed services.
• Experience designing APIs using REST, gRPC or GraphQL.

Responsibilities

• Design, build and maintain scalable backend services in Python and C++.
• Develop APIs and backend services supporting compiler and quantum runtime.
• Build reliable distributed systems and cloud‑native services.
• Improve performance, reliability and observability across backend components.
• Collaborate with compiler engineers to integrate new compiler capabilities into production systems.
• Work with researchers and product teams to deliver new platform capabilities.
• Learn and contribute to compiler infrastructure as your expertise grows.

Skills

Python

C++

APIs (REST/gRPC/GraphQL)

Distributed systems

Async programming

Education

Bachelor's degree in CS/Engineering

Tools

FastAPI

Flask

Django

gRPC

REST

GraphQL

LLVM

MLIR

Job description

Q-CTRL is seeking a Backend Software Engineer to join the Boulder Opal team in San Francisco. You will build scalable backend services in Python and C++, design APIs, and deliver cloud-native systems for our quantum software platform.

You’ll collaborate with compiler engineers and researchers to integrate new capabilities, improve performance and reliability, and help shape the underlying infrastructure while growing expertise in compiler tech and quantum computing.