Electrical Engineer - Hardware Engineer IV

Mindlance

  • Sunnyvale, CA
  • 8 days ago

    Highlights

    Expert-level knowledge of lab instruments: high-bandwidth oscilloscopes, power rail probes, active/differential probes, current probes, spectrum analyzers. In this role, your primary focus will be monitoring validation progress, reviewing CM test reports, analyzing failures, and coordinating with EE design partners to drive issues to closure.

    Numbers & Facts

    LocationSunnyvale, CA

    Description

    Onsite: Sunnyvale, CA

    Role Summary

    We are seeking an experienced EE Validation Engineer to support hardware validation of next-generation smart glasses, working closely with the validation lead. In this role, your primary focus will be monitoring validation progress, reviewing CM test reports, analyzing failures, and coordinating with EE design partners to drive issues to closure. You will also guide CM engineers on measurement procedures and perform hands-on PI/SI debug when needed. While you must possess strong hands-on measurement skills, the majority of your time will be spent interpreting data, tracking issues, and ensuring problems are resolved efficiently. You will not own final validation decisions, but you are expected to be technically strong enough to flag risks, recommend actions, and keep execution on track under the lead's direction.

    Responsibilities
    Issue Tracking & Closure (Primary Focus ~60%)
    Review CM-generated validation reports: verify data quality, flag anomalies, confirm pass/fail criteria are correctly applied
    Analyze validation failures; determine whether issues are measurement errors, design defects, or assembly quality problems
    Coordinate with EE design partners to present data, propose root cause hypotheses, and support corrective action decisions
    Track open issues through resolution; ensure fixes are validated and closed in a timely manner
    Facilitate communication between CM, EE design, layout, and firmware teams to keep issues moving
    Maintain issue tracker and provide regular status updates to the FTE validation lead
    Monitor overall validation progress against milestones; escalate risks and blockers early
    CM Guidance (~20%)
    Develop clear, repeatable test procedures (SOPs) that CM technicians can execute independently
    Train and guide CM engineers/technicians on proper measurement techniques, probe placement, fixture usage, and data collection
    Define probe points and measurement access strategy; communicate to CM with annotated layout markups
    Provide real-time technical guidance to CM when measurements yield unexpected results
    Establish clear acceptance criteria and escalation paths for CM to follow, in alignment with the FTE validation lead
    Hands-On Measurement & Debug (~20%)
    Perform PI/SI measurements that require senior-level judgment (e.g., first article bring-up, intermittent failures, subtle noise sources)
    Validate CM measurement setups by performing correlation measurements
    Debug escalated issues that CM cannot resolve independently
    Develop new measurement methodologies and fixtures for Client circuits or challenging probe access
    Support prototype bring-up and characterization during build phases

    Technical Knowledge Required
    Power Integrity (PI)
    DC-DC converter characterization: line/load regulation, efficiency, transient response, output ripple/noise
    Power sequencing validation and timing verification against IC specifications
    Power rail stability under varying load conditions; current profiling
    Battery charging circuit validation: charge profiles, protection, thermal limits
    PDN concepts: ground bounce, decoupling strategy, voltage droop analysis
    Signal Integrity (SI)
    High-speed interface measurement: MIPI CSI, SPI, I2C, I2S/PDM, USB, UART
    Signal quality assessment: rise/fall times, overshoot/undershoot, ringing, eye diagrams
    Crosstalk, reflections, and impedance discontinuities on flex/rigid-flex assemblies
    Clock signal quality and jitter characterization
    Protocol-level correlation with physical-layer signal issues
    Schematic & Layout Competency
    Read and interpret multi-page schematics to understand circuit topology, power trees, and signal routing
    Review PCB layout (rigid and flex) to identify optimal probe locations and debug access points
    Assess layout for SI/PI risk: trace routing, return path continuity, impedance control, via transitions
    Provide layout feedback to design team for improved testability

    Required Qualifications
    BS/MS in Electrical Engineering
    4+ years of EE hardware validation experience with strong emphasis on power integrity and signal integrity
    Proven ability to analyze test data, identify root causes, and drive issues to closure with cross-functional teams
    Experience reviewing test reports for correctness, identifying gaps, and driving follow-up actions
    Ability to develop test procedures that others execute clear technical writing, structured SOPs, annotated diagrams
    Strong schematic reading skills trace signal paths, understand power distribution, map circuit function from schematics and datasheets
    PCB layout review experience assess probe access, SI/PI risk, debug strategy
    Expert-level knowledge of lab instruments: high-bandwidth oscilloscopes, power rail probes, active/differential probes, current probes, spectrum analyzers
    Experience with DC-DC converter characterization and high-speed digital signal measurements
    Solid understanding of transmission line theory, impedance matching, and flex PCB signal integrity challenges
    Strong communication skills ability to explain complex EE issues clearly to CM teams and design partners

    Preferred Qualifications
    Experience working with CMs or ODMs in a validation support capacity
    Experience with wearable, mobile, or IoT hardware (space-constrained, low-power designs)
    Familiarity with RF measurement (BLE/WiFi TX power, sensitivity, antenna return loss)
    Familiarity with proto/EVT/DVT/PVT build cycles and NPI environments
    Experience with issue tracking systems and cross-functional coordination in hardware programs

    Tools & Environment
    Instruments: Keysight/Tektronix oscilloscopes (?1 GHz), power rail probes, active probes, SMUs, VNAs, protocol analyzers
    Software: scripting, schematic/layout viewers (Allegro, Altium, or equivalent), data analysis tools
    Documentation: Google Workspace, Tasks/JIRA for issue tracking
    Collaboration: Daily interaction with validation lead, CM engineers (remote and on-site), EE design team, and FW

    EEO:
    Mindlance is an Equal Opportunity Employer and does not discriminate in employment on the basis of Minority/Gender/Disability/Religion/LGBTQI/Age/Veterans.

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