Analog / Mixed-Signal Electrical Engineer

FIELDLINE INDUSTRIES•Boulder, CO

108d•$95,000 - $140,000•Onsite

About The Position

We are looking for a highly capable mid-level electrical engineer who enjoys solving difficult real-world problems: someone who understands why circuits work, why they fail, and how to improve them. This role focuses on low-noise analog and mixed-signal circuit design, hardware bring-up, debugging, and system integration for precision sensing systems operating near the limits of measurement sensitivity. You will work closely with a small technical team spanning physics, electronics, embedded systems, and sensing technologies. Engineers are expected to contribute meaningfully across disciplines. This is a high-impact, high-ownership role, where you will define best practices, influence product strategy, and help lay the foundation for FieldLine Industries’ culture and growth. This position may require access to export-controlled information subject to ITAR regulations. Candidates must be U.S. citizens or lawful permanent residents eligible to access export-controlled information under U.S. regulations.

Requirements

Bachelor’s or Master’s degree in Electrical Engineering or a related field
3+ years of experience designing electronics for products or instrumentation
Strong experience with schematic capture and PCB design
Deep understanding of analog electronics and mixed-signal systems
Experience designing hardware intended for production and deployment, not just lab use
Comfortable debugging hardware
Self-driven, tinkerer, learner
U.S. citizens or lawful permanent residents eligible to access export-controlled information under U.S. regulations.

Nice To Haves

Familiarity with EMC/EMI considerations and compliance testing
Experience supporting products already in production or early field use
Exposure to magnetic sensing, instrumentation, or quantum/atomic systems
Interest in contributing to development of quantum technologies - previous quantum or magnetometer experience is not essential

Responsibilities

Design and improve low-noise analog circuits, including sensor readout, current drivers, and amplifiers
Own electrical architecture for quantum magnetometer hardware, including circuit design, schematic capture
Select components with attention to noise, stability, availability, lifecycle, and cost
Define and review PCB layouts with a focus on: (1) Signal integrity and grounding (2) Power distribution and decoupling (3) Clocking and digital interface
Support board bring-up, validation, and system-level debugging
Work with manufacturing partners and vendors