Design and develop electrical architecture for automated test fixtures and production test stations used for PCBAs and assembled electronic products.
Create schematics, interface boards, wiring architectures, and electrical documentation for manufacturing test systems.
Define hardware partitioning between fixture electronics, DUT interface boards, instrumentation, power switching, safety circuits, and operator indicators.
Participate in cross\-functional design reviews with firmware, mechanical, manufacturing, and quality teams. DUT Interface, Measurement \& Control
Design circuits for safe and repeatable interfacing to DUT power rails, digital IO, analog signals, communication ports, relays, indicators, sensors, and user\-interface elements.
Develop switching, signal routing, conditioning, and measurement interface circuits for validation of voltage rails, current draw, startup behaviour, sequencing, protection features, communications, and functional IO.
Support implementation of test coverage for analog, digital, timing, communication, and safety\-related behaviour.
Design firmware programming and debug interfaces for DUT flashing, configuration, and diagnostic access. Instrumentation \& Production Test Integration
Select and integrate instruments and interface electronics such as DMMs, programmable power supplies, DAQ modules, relays, multiplexers, oscilloscopes, and communication adaptors as required.
Develop robust harnessing, connector strategies, pogo\-pin or fixture interconnect concepts, and serviceable field wiring for production use.
Ensure repeatable electrical performance with appropriate grounding, shielding, ESD protection, isolation, and noise mitigation techniques.
Support integration with production systems, serial number scanning, traceability requirements, and manufacturing application interfaces.
*Safety, Interlocks \& Error\-Proofing**
Design guarded, interlocked, and operator\-safe electrical systems that prevent exposure to hazardous voltages and support safe\-state behaviour.
Implement lid interlock circuits, zero\-potential safety logic, emergency stop or fault handling provisions, and pass/fail visual indication hardware.
Support poka\-yoke / error\-proofing mechanisms to reduce incorrect loading, incorrect connections, and operator misinterpretation of results.
Design for diagnostic visibility, serviceability, and maintainability in production environments. Prototyping, Debugging \& Validation
Support fixture bring\-up, electrical debugging, root cause analysis, and pilot\-line validation.
Use oscilloscopes, logic analysers, power analysers, and other lab instruments to debug fixture behaviour, measurement issues, noise, timing, or interface problems.
Validate accuracy, repeatability, false\-fail performance, and robustness of test hardware across known\-good and known\-bad DUTs.
Collaborate with manufacturing and quality teams during pilot runs and release to production. Documentation \& Delivery
Create complete hardware development documentation including schematics, BOMs, wiring diagrams, interface definitions, test hardware drawings, validation summaries, and release files.