SUMMARY

• +16 years of detailed engineering design, analysis, hands - on lab Test, V&V (Validation & Verification) of circuits, systems, hardware and software, troubleshooting down to component level, PLC/digital logic and system requirements engineering.
• Power electronics (AC-DC, DC-DC converters and DC-AC inverters) for Consumer Electronics (Laptop, Phone, Tablet), Aerospace and utility applications.
• Power electronics design & Product test (functional, environmental, EMC)
• Perform power and control parts selection for Controller/Mother board design (CCA).
• Detailed design of schematics and PCB layout for high power density and signal integrity (SI).
• Prepare test cases and procedures for environmental ruggedness and conduct tests as per aerospace (DO160), Nuclear (IEEE1012) and telecommunication standards (UL1950, 60950) using ATE (Automated test equipment), Oscilloscope.
• Documenting test summaries, monitoring tests, detecting anomalies and pursuing resolution of anomalies.
• Perform Thermal analysis (for design optimization), WCCA (worst case circuit analysis), FHA (functional hazard analysis) and investigation for root cause of failure.
• Carried out 1E nuclear safety software/code inspection & reviews, Design & test requirements traceability, PLC/digital I&C, In-Lab validation and verification of nuclear reactor safety protection systems.

TECHNICAL SKILLS

• Power electronics design (5 W to 3kW). Consumer Electronics (100W), Medium Power (1MW, 500 VDC Link)
• DC-DC converters. DC-AC inverter, Controller/Mother board, Motor control, Mosfet/IGBT, Digital/Analog Circuit analysis (Mathcad, Matlab). Parts 2nd sourcing.
• TEST: Board /System level circuit design verification (DVT), Functional test (LabView), Environmental & EMI test plan & procedures (DO160, MIL704), HALT (Thermal chamber), Power Analyzer (Yokogawa) & Oscilloscope (Tek DPO), Electronic Load (Chroma), Network Analyzer (S-parameter).
• NI LabView (Test Stand), Automation scripting (Python, Lynx)
• PCB: Signal Integrity board layout using CAD, Hyperlynx-SI&PI, Altium, DxDesigner, Orcad (Cadence)
• SYSTEMS: Requirements management and Traceability (DOORS), GE (Control ST), ABB (AC160), Schneider (Triconex), Stress and Tolerance Analysis (WCCA). FHA (Functional Hazard Analysis). Product configuration (Agile Team Center), Visio, Excel Macros (VBA).

TECHNICAL SKILLS

Confidential, Seattle-WA

HIL Design and Integration Engineer

Responsibilities:

• Support Design, Integration, Test and Verification of HIL (Hardware-In-Loop) by simulating sensors, actuators, motor controllers, communications buses (CAN, RS422), electrical and mechanical interfaces with automated scripting (Python, Lynx). Harnessing layouts (Creo), PCB schematics (Orcad)
• Execute system tests with fault injection in HIL (Hardware-In-Loop) for real-time vehicle simulations to support qualification of flight control electronics hardware and software.
• Block upgrades and end of life updates for orbital aerospace vehicles under AS9100.

Confidential, Sunnyvale, CA

Electrical Validation Engineer

Responsibilities:

• Performing hands-on electrical test tasks in lab specific to find root cause of failures occurring during manufacture of AI (Artificial Intelligence) server PCB (Printed Circuit Board).
• Performing Power integrity and Signal integrity validation tasks during product development (EVT, DVT and PVT) phases on Power system for (PMIC, LDO & SMP, nano-power) devices; DC Power load line, Power sequencing, Transient dynamic load ripple, HIL (Hardware-In-Loop) for control feedback tuning, Unix and Gsys test scripts, test plan & reports, test data analysis, board bring-up.
• AI Data centers/servers (AC to DC and DC to DC) and mobile devices (Android based Phone with qualcomm/Snap dragon PMIC)

Confidential, Snowqualmie, WA

Electrical Verification Engineer

Responsibilities:

• Investigated root cause/failure analysis down to the component level of RF (Radio Frequency) assemblies, using NI-TestStand, spectrum analyzer, RF power meter and Test data base (Proligent).
• Detailed write-up of failure investigation and disposition report in Quality Management System for CAPA.
• Hand-held heart ECG monitoring medical device.

Confidential, Redmond, WA

Electrical Design & Test engineer

Responsibilities:

• Verified in lab the nano power load switches, regulators, DC load line (core, SA, GT), frequency response, and transient response analysis.
• Performed setup and operation of test equipment, including oscilloscopes, power supplies, DC electronic loads, thermocouple data acquisition systems, Thermal IR cameras, thermal chambers, soldering 201 size components.
• Handheld consumer electronics/Mobile devices

Confidential, Tucson, AZ

Principal electrical engineer

Responsibilities:

• Component obsolescence management/Sustaining activities of Circuit Card Assemblies (CCA) in production environments, electrical over-stress, and application of various testing methods for EEE parts (i.e. burn-in, temperature cycling, vibration, shock) radiation effects, as per DO160.
• Troubleshoot full hardware design including schematic capture, multilayer PCB layout, circuit simulation (Cadence/Mentor graphics System Vision). Using debugging tools like logic analyzer, oscilloscope for signal integrity analysis of (PID) Controller/Mother board.
• Coordinated with engineering experts across multiple disciplines and COEs (Center of Excellence) to identify optimal solutions. Developed white papers/Document findings, Prepared ECO, ECR and Statement of Work (SOW).