Systems Integration Engineer - Sensing

Quantum Computing Jobs UK; Kidlington; Hybrid; GBP 60,000 - 90,000; Full time

Job summary

Infleqtion in the United Kingdom is expanding its Engineering Team in Kidlington to hire a System Integration Engineer. You will develop hardware, software and firmware interfaces to control optical and atomic systems for next-gen PNT applications.

This role requires collaborating with electronics, software, FPGA, mechanical, optical, physics, and systems engineers to deliver end-to-end integration and system verification. The position is hybrid with offices in Kidlington, Oxford.

Qualifications

• Experience integrating complex electronics sub-systems.
• Ability translate system requirements into integration architectures.
• Familiarity with RF, analogue, digital, optical domains.

Responsibilities

• Integrate electronics devices, instruments, third-party devices, and subsystems into larger complex systems comprising RF, analogue, digital, optical, and mechanical elements.
• Translate system-level requirements into practical integration architectures, interfaces, cabling, power, communications, and control schemes.
• Develop system interconnects including cable assemblies, harnesses, RF connections, grounding, shielding, power distribution, and signal routing.
• Perform system bring-up, commissioning, troubleshooting, fault isolation, and performance optimisation.
• Identify and resolve integration issues including grounding, EMI/EMC, signal integrity, timing, communications, power distribution, and environmental effects.
• Develop and maintain system diagrams, interface control documentation, wiring diagrams, integration procedures, and configuration records.
• Define and execute integration, verification, and validation test plans at subsystem and system level.
• Use laboratory test and measurement equipment to diagnose system-level performance and integration problems.
• Support installation, deployment, commissioning, and maintenance of systems in laboratory and operational environments.
• Work closely with electronics, software, FPGA, mechanical, optical, physics, and systems engineering teams to ensure successful end-to-end integration.
• Support supplier selection and integration of third-party equipment and externally developed subsystems.
• Contribute to system risk management, failure analysis, reliability improvement, and continuous improvement activities.

Skills

System integration

Electronics hardware

Firmware interfaces

RF & analog

Cross-functional work

Job description

Job Type Permanent

Work Location Hybrid

Posted 8 Oct 2026 (2 days ago)

Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables “quantum everywhere” through our ecosystem of devices and platforms.

LOCATION

Infleqtion has offices in the USA, United Kingdom and Australia. This is a permanent, full-time position at our Kidlington, Oxford office. Our flexible working policy enables all full-time employees to work from home up to 2 days a week, if work permits.

Position Summary

As part of our strategy for growth in the UK, we are expanding our Engineering Team and recruiting a System Integration Engineer. In this role you will develop hardware, software and firmware interfaces to control and monitor optical and atomic physics systems for the development of next generation Positioning, Navigation, and Timing (PNT) systems. These systems offer orders of magnitude improvements in sensing and accuracy compared to current technologies.

Job Responsibilities

Technical Responsibilities

• Integrate electronics devices, instruments, third-party devices, and subsystems into larger complex systems comprising RF, analogue, digital, optical, and mechanical elements.
• Translate system-level requirements into practical integration architectures, interfaces, cabling, power, communications, and control schemes.
• Develop system interconnects including cable assemblies, harnesses, RF connections, grounding, shielding, power distribution, and signal routing.
• Perform system bring-up, commissioning, troubleshooting, fault isolation, and performance optimisation.
• Identify and resolve integration issues including grounding, EMI/EMC, signal integrity, timing, communications, power distribution, and environmental effects.
• Develop and maintain system diagrams, interface control documentation, wiring diagrams, integration procedures, and configuration records.
• Define and execute integration, verification, and validation test plans at subsystem and system level.
• Use laboratory test and measurement equipment to diagnose system-level performance and integration problems.
• Support installation, deployment, commissioning, and maintenance of systems in laboratory and operational environments.
• Work closely with electronics, software, FPGA, mechanical, optical, physics, and systems engineering teams to ensure successful end-to-end integration.
• Support supplier selection and integration of third-party equipment and externally developed subsystems.
• Contribute to system risk management, failure analysis, reliability improvement, and continuous improvement activities.

Personal And Team Responsibilities

• Collaborate effectively with team members to ensure deadlines are met
• Work within multi-disciplinary teams including physicists, engineers, and technicians to develop solutions
• Adapt to changing circumstances and manage ambiguity effectively