Principal Mixed‑Signal Hardware Engineer (Scientific Instruments)

Job Description

Job Description

Principal Mixed‑Signal Hardware Engineer (Scientific Instruments)

Join LECO in St. Joseph, Michigan—an 80+ year, family‑owned innovator in world‑class laboratory instrumentation. We value long‑term stability, loyalty, trust, and shared purpose, and our products support scientists around the globe.

Schedule : Monday–Friday, 8 : 00 a.m.–5 : 00 p.m., on‑site

A day in the life

You’ll start your morning reviewing your engineering notebook and latest test data from a precision measurement board. By midday, you’re collaborating with mechanical and software peers to refine a subsystem architecture for a next‑generation instrument. In the afternoon, you’ll implement design updates, run bench evaluations, and capture findings for design reviews—operating with a high degree of technical independence throughout.

Role overview

As a senior engineer, you will own the design of advanced electrical components and sub‑assemblies with minimal oversight. You will report to the Manager, Electronics Research & Engineering, or the Manager, RF Products.

What you’ll own

• End‑to‑end design of electrical components and sub‑assemblies, from concept through release
• Researching, building, and testing prototypes to validate performance
• Diagnosing and resolving production issues in partnership with manufacturing
• Authoring and maintaining design artifacts (schematics, BOMs, specifications) and keeping a logbook
• Preparing documentation packages for formal design reviews
• Contributing within cross‑disciplinary teams while accounting for system‑level tradeoffs
• Investigating emerging technologies to drive product innovation
• Leading specialty electrical design efforts independently

What you bring

Mixed‑signal design (ADC / DAC) for precision measurement systems

Education & experience

Reporting

This role reports to the Manager, Electronics Research & Engineering, or the Manager, RF Products.

EOE M / F / Vet / Disability