Principal Mixed‑Signal Hardware Engineer (Scientific Instruments)

LECO Corporation • Grand Rapids, MI

12d • Onsite

About The Position

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.

Requirements

• Depth across a broad spectrum of electrical engineering topics, including:
• Mixed‑signal design (ADC/DAC) for precision measurement systems
• Microcontroller‑based hardware design
• Analog circuit design
• Closed‑loop temperature control
• AC power design (single‑phase and three‑phase)
• High‑voltage design (≥1 kV, typically low power)
• Motor control
• Human‑machine interface (HMI) design
• System‑level architecture
• PCB/PWB design and PWA practices
• Wire harness design
• Clear written and verbal communication with strong documentation discipline
• Effective collaboration and facilitation skills; sensitivity to multi‑disciplinary stakeholder needs
• Awareness of design impacts across the broader team and product lifecycle
• Master’s degree, or Bachelor’s degree with substantial related experience
• 7+ years of relevant, hands‑on electrical engineering experience

Responsibilities

• 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 This Job Offers

• Job Type: Full-time
• Career Level: Senior