Job Description

About the Company

Our client is pioneering next-generation chip-scale quantum devices, with a focus on advancing Position, Navigation, and Timing (PNT) systems. These systems are built to operate with resilience and precision, even in GPS-denied environments. At the intersection of quantum physics, high-precision manufacturing, and systems engineering, their work supports national security, infrastructure, and the future of quantum-enabled technologies. With strong backing from top-tier deep-tech investors and U.S. government agencies, the company is entering a phase of rapid growth and is seeking exceptional talent to support its mission.

Position Overview

We’re looking for an experienced RF & Analog Electronics Engineer to lead the development of ultra-low-noise, high-precision, mixed-signal electronics at the core of compact quantum devices. This is a deeply technical and hands-on role, contributing directly to the architecture and performance of novel sensing platforms. The engineer will collaborate across optics, vacuum, and quantum teams to co-develop integrated systems ready for real-world deployment.

Key Responsibilities

• Design and characterize low-noise analog circuits: amplifiers, filters, PID controllers, voltage/current regulators
• Develop and optimize precision signal chains for quantum sensor platforms
• Design RF/microwave systems: synthesizers, PLLs, modulators, impedance-matched front-ends (3–4 GHz)
• Execute high-frequency, low-noise PCB layout and multilayer board design
• Collaborate with optical and systems engineers to co-design electronics with lasers, detectors, and MEMS packaging
• Build, test, and iterate using lab tools (oscilloscopes, spectrum analyzers, lock-in amps, VNAs, Allan deviation analyzers)
• Develop automated test systems for performance validation and long-term data capture
• Support compliance and mitigation for EMI/EMC under aerospace and defense standards

Core Technical Focus Areas

Analog & Mixed-Signal Design

• Low-noise analog signal conditioning
• PID control loop design and implementation
• Integration of ADCs/DACs into high-precision systems
• Power regulation and current driving circuits for sensitive components

RF & Microwave Systems

• Design of compact, low-power synthesizers (3–5 GHz)
• Signal integrity, impedance matching, and board-level RF performance

System-Level Integration

• PCB layout experience with Altium or KiCad
• Co-development with photonic systems and vacuum-integrated hardware
• Simulation tools: LTspice, ADS, HFSS, etc.
• Familiarity with version control (Git/GitLab)
• Python scripting for automation and test infrastructure

Preferred Experience (Nice to Have)

• Background in atomic physics (e.g., rubidium/cesium transitions)
• Exposure to MEMS, vacuum systems, or optoelectronic packaging
• Prior work in defense, aerospace, or other high-reliability applications
• Experience with digital signal processing or embedded firmware
• Knowledge of DFM for scaling into production

Ideal Candidate Profile

• Passionate about building high-performance hardware that works in the field
• Precision- and detail-oriented, with strong hands-on debugging and prototyping skills
• Enjoys working across disciplines and learning from adjacent technical areas
• Motivated by impactful work at the forefront of emerging technology

Following your application Chris Green, a specialist recruiter will discuss the opportunity with you in detail. Chris will be more than happy to answer any questions relating to the industry and the potential for your career growth. The conversation can also progress further to discussing other opportunities, which are also available right now or will be imminently becoming available.

This position has been highly popular, and is likely that it will close shortly. We recommend applying as soon as possible to avoid disappointment.

Please click 'apply' or contact Chris Green for any further information.

cgreen@barringtonjames.com

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