Electrical Engineer

Exum Instruments Inc.; Denver (CO); On-site; USD 110,000 - 125,000; Full time

Benefits offered by this job

Health insurance

401(k)

Unlimited PTO

Job summary

Exum Instruments Inc. in Denver, CO is seeking an Electrical Hardware Engineer II to own the hardware lifecycle of our mass spectrometer instruments.

You will take custom PCBA designs from concept to production, bridge electrical and mechanical teams, manage sub-assembly wiring, and guide our hardware through global regulatory standards. Your role includes leading PCBA design, electro-mechanical integration, harness routing, high‑voltage system handling, and pre‑compliance for FCC/CE/UL/IEC

Qualifications

• 3–5 years of hands-on hardware design experience in lab, scientific, or medical instrumentation.
• Proficiency with ECAD tools and electrical test equipment.
• Strong grounding architectures and EMI/EMC mitigation understanding.

Responsibilities

• PCBA design: multi-layer schematic, component selection, PCB layout with signal integrity and power distribution.
• Electro-mechanical integration: package electronics within tight constraints, manage thermal performance.
• Harness & wiring management: design and document internal wiring harnesses and routing across subsystems.
• High voltage systems: integrate and test off-the-shelf HV supplies for ToF-MS operations.
• Regulatory compliance: pre‑compliance layout for FCC, CE, UL/IEC 61010 or 62368-1.

Skills

Grounding architectures

EMI/EMC mitigation

ECAD tools

KiCAD

Hardware troubleshooting

Tools

KiCAD Designer

Electrical test equipment

Job description

Electrical Hardware Engineer II

About Exum: Exum builds complex analytical instruments to redefine materials science. We develop the Massbox - the first commercial laser ablation laser ionization time-of-flight mass spectrometer (LALI-ToF-MS). Our fast-paced team integrates cutting-edge physics, high-performance hardware, and intuitive software into a sleek desktop instrument.

The Role

We are seeking a versatile Electrical Engineer to own the hardware lifecycle of our mass spectrometer instruments. You will take custom PCBA designs from concept to production, bridge the gap between electrical and mechanical systems, manage sub-assembly wiring, and guide our systems through rigorous global regulatory compliance.

What You'll Do

• PCBA Design: Own multi-layer schematic design, component selection, and PCB layout focusing on signal integrity, low-noise analog, and power distribution.
• Electro-Mechanical Integration: Collaborate with mechanical engineers to package electronics within tight physical constraints, managing thermal performance and structural placement.
• Harness & Wire Management: Design, document, and manage reliable internal wiring harnesses, cable assemblies, and routing paths across complex subsystems.
• High Voltage Systems: Integrate, configure, and safely test off-the-shelf high-voltage power supplies and modules critical to ToF-MS operations.
• Regulatory Compliance: Drive hardware preparation, shielding design, and pre-compliance layout for global product safety and emissions standards (e.g., FCC, CE, UL/IEC 61010 or 62368-1).

What You'll Bring

• Experience: 3-5 years of hands-on hardware design experience, preferably working on complex laboratory, scientific, or medical instrumentation.
• Tools: Proficiency with modern ECAD tools (KiCAD Designer preferred) and electrical test equipment.
• Skills: Strong understanding of grounding architectures, EMI/EMC mitigation techniques, and standard wiring harness design best practices.
• Mindset: Highly collaborative, analytical, and comfortable troubleshooting physical hardware on the lab bench.

Location

• On-site, full-time at Exum headquarters in Denver, CO.
• <10% travel to satellite Albuquerque, NM office for Software Integration meetings.

Salary/Benefits

• $110-125K per year depending on experience
• Health insurance
• 401(k)
• Unlimited PTO