Senior Embedded Software Engineer Software

Front Door Defense; Louisville (CO); On-site; USD 131,000 - 231,000; Full time

Job summary

Infleqtion in Louisville, Colorado, is seeking a Senior Embedded Software Engineer to lead Rust-based software for quantum device control and hardware–software integration. Location is Louisville, CO, United States.

Compensation ranges from $131,000 to $231,000 USD per year. You will work across the stack—from low‑level embedded Rust and gateware integration to higher‑level Rust application interfaces, collaborating with hardware, firmware, and application teams to build reliable,

Qualifications

• Experience with Rust and embedded systems.
• Experience with hardware/software integration.
• Strong software engineering fundamentals.

Responsibilities

• Collaborate closely with cross‑functional teams—including hardware engineers, physicists, and software developers—to deliver fully integrated product solutions.
• Maintain documentation of designs, workflows, and processes in compliance with internal and regulatory standards.
• Contribute to integrating Rust‑based middleware and driver software used for device control.
• Collaborate with hardware and FPGA teams to develop software drivers and interfaces for embedded devices.
• Develop and maintain system‑level APIs and communication layers
• Contribute to frontend development where needed to support tooling, visualization, or user interfaces
• Write clean, well‑tested, and well‑documented code
• Participate in code reviews and technical design discussions

Skills

Rust

Embedded systems

Software development

Job description

Senior Embedded Software Engineer

Lead embedded Rust software development for quantum device control and hardware–software integration

Location: Louisville, Colorado, United States

Compensation: $131,000 - 231,000 USD / year

Job Tags: Software

About The Role

Software Engineer

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 software engineer with deep expertise in Rust and familiarity with embedded systems development to join our cross‑functional engineering team. In this role, you'll work across the stack—from low‑level embedded Rust and gateware integration to higher‑level Rust application interfaces, with exposure to frontend technologies. You'll collaborate closely with hardware, firmware, and application teams to build reliable, high‑performance systems.

While a physics background is not required, experience working with physical systems or scientific instrumentation is beneficial. The ideal candidate is fundamentally a software engineer, with strong embedded systems intuition and a commitment to continually deepening their technical expertise.

Job Responsibilities

• Collaborate closely with cross‑functional teams—including hardware engineers, physicists, and software developers—to deliver fully integrated product solutions.
• Maintain documentation of designs, workflows, and processes in compliance with internal and regulatory standards.
• Contribute to integrating Rust‑based middleware and driver software used for device control.
• Collaborate with hardware and FPGA teams to develop software drivers and interfaces for embedded devices.
• Develop and maintain system‑level APIs and communication layers
• Contribute to frontend development where needed to support tooling, visualization, or user interfaces
• Write clean, well‑tested, and well‑documented code
• Participate in code reviews and technical design discussions