Electrical Lab Technician - HIL & Embedded Systems

Diversified Services Network, Inc. (DSN) is seeking a full‑time Lab Support Technician to join our team in Mossville, IL
! We offer an ONSITE work model, full benefits, PTO, 401k, and more! If you’re looking to grow your technical career within an extremely reputable, stable Fortune 100 company, let’s talk!

Lab technician is a hands‑on member of our Client’s Electronic Systems Verification and Validation Engineer team where they support lab‑based testing of embedded control software that goes onto various machines. Technicians work closely with the engineering team and are responsible for building, modifying, and maintaining complex wiring harnesses and load plates that support advanced Hardware‑in‑the‑Loop (HiL) test benches and lab equipment.

This role involves interpreting detailed electrical schematics and pin maps, assembling connectors and terminations to industry standards. Our technician ensures HiL benches and fixtures are properly wired, labeled, grounded, safe, and test‑ready, and supports troubleshooting of wiring and connectivity issues. Our technicians keep our test infrastructure reliable, documented, and scalable.
Team supports multiple machine product lines and is continually building new benches to support new NPI deliverables.

• Build custom wiring harnesses from drawings, schematics, and pinout tables (breakouts, shielded/twisted pairs, coax/RF as applicable).
• Perform precision crimping, soldering, splicing (e.g., butt splice, solder sleeves), heat‑shrink/boot application, braiding/looming/lacing, strain relief, and cable management.
• Apply labels, heat‑shrink markers, and color codes; maintain consistent routing and bend radius practices.
• Execute continuity, insulation resistance, and (where specified) hipot tests; log and resolve defects.

• Assemble load plates / I/O plates / patch panels to interface ECUs/UUTs with HIL benches (e.g., resistor networks, relays, fusing, terminal blocks, fault insertion interfaces, protection/conditioning circuits).
• Mount and wire DIN‑rail components, power distribution, and grounding; verify loads, ratings, and derating; ensure panel labeling and documentation.

• Modify existing harnesses and panels, update pin maps and drawings, and verify changes on‑bench.
• Support benches bring‑up, signal checkout, and debug with engineers (CAN/LIN/Ethernet/analog/digital I/O, power rails, grounds, shielding).
• Maintain HIL bench uptime: tidy cable routing, quick‑turn rework, connector repairs, spare parts inventory.

• Read/interpret schematics, wiring diagrams, connector datasheets, and harness drawings; generate/update BOMs, pin maps, and as‑built records.
• Follow 5S and lab safety procedures.
• Track work via word order; record test results and traceability (part/lot numbers, crimp tool calibration, torque values).

• Manage consumables and components (wire gauges/types, terminals, contacts, housings, back shells, heat‑shrink, fuses).
• Calibrate or flag equipment (crimp tools, DMMs, labelers, cable testers); coordinate RMA/repairs as needed.
• Ensure 5S cleanliness and work environment.

High school diploma or GED required with 0‑2 years of technical experience, OR 2‑yr associate’s degree in Electronics Technology, Diesel Power Equipment Technology, or a related field.

• Harnessing/wiring experience – capable of building custom wiring harnesses from drawings, schematics, and pinout documentation with precision crimping, soldering, splicing, heat‑shrink/boot application, braiding/looming/lacing, strain relief.
• Usage of electronic test equipment to troubleshoot wiring/harness – capable of using a fluke meter to troubleshoot wiring harness.
• PC hardware and PC networking experience (expected to help remove PC cards, basic PC management such as ensuring power is on and being able to power cycle the PC when needed by remote staff).
• Basic electrical theory concept.
• Mechanical inclination (be able to use basic tools like drills).
• Blueprint/schematic reading experience (be able to read wiring diagram).
• Be comfortable with using Microsoft software such as Word, Excel, etc.

• Proof of attention to details (as one mis‑wiring could cause hours of troubleshooting for the team).
• Excellent written and verbal communication skills.
• Self‑driven and great interpersonal skills as you will be working with a diverse team of engineers.

• 401(k)
• Dental insurance
• Vision insurance
• Disability insurance
• Employee assistance program
• Health insurance
• Health savings account
• Life insurance
• Paid time off
• Paid Holidays

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