Senior Software Engineer

Infleqtion•Louisville, CO

3d•$106,000 - $141,000

About The Position

Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. As a deep-tech startup, we embrace a results-driven, fast-paced, and customer-focused approach to innovation. We are seeking a Senior Software Engineer to lead the development and productization of our software systems that interface with cutting-edge quantum and embedded hardware. This role focuses on full-stack software engineering, team leadership, and the establishment of strong software engineering practices. While a physics background is not required, familiarity with physical systems or scientific instrumentation will be helpful. The ideal candidate is a software engineer first, with strong embedded systems awareness and proven leadership in modern software development environments.

Requirements

Bachelor’s or Master’s degree in Computer Science, Software Engineering, or equivalent experience.
4+ years of professional software engineering experience.
Expert-level proficiency in Python and JavaScript/TypeScript.
Strong experience with React and Next.js frontend frameworks.
Experience with FastAPI or similar modern Python web frameworks.
Familiarity with embedded software concepts (device drivers, low-level APIs, hardware communication protocols).
Demonstrated experience leading software development teams or acting as a technical lead.
Deep understanding of modern development workflows (Git, Jira, CI/CD pipelines, automated testing).

Nice To Haves

Experience with Rust (especially in middleware or systems contexts).
Exposure to or interest in scientific instrumentation, hardware control, or physics-related systems.
Familiarity with Docker, Kubernetes, or other containerized deployment systems.
Experience in startups or R&D-focused environments.

Responsibilities

Leadership & Coordination of global software development efforts for quantum sensing products
Serve as technical lead for the software engineering team, guiding day-to-day operations and development priorities.
Collaborate with project managers and technical leads to plan and execute development milestones.
Lead daily stand-up meetings, manage the Jira board, and ensure timely completion of sprint goals.
Oversee and enforce software engineering best practices, including code reviews, testing standards, documentation, and CI/CD processes.
Act as the liaison between the software engineering team and the broader multidisciplinary project team.
Lead development of the frontend application built with React/Next.js, ensuring high performance, maintainability, and scalability.
Own the backend REST API written in Python (FastAPI), ensuring robust integration with hardware control and middleware layers.
Contribute to integration with Rust-based middleware and/or driver software used for device control.
Collaborate with embedded systems engineers to ensure seamless interaction between software and hardware components.
Participate in architecture discussions and contribute to technical design documentation.
Support the transition of projects from prototype to production-ready systems.