Principal High-Speed Hardware Design Engineer

Experience: 10+ Years

Domain: High-Performance Embedded Systems

Role Summary

As a Principal Engineer, you will lead the architecture, design, and validation of mission-critical embedded systems. Your primary focus will be the integration of AMD (Xilinx) UltraScale+ or Intel (Altera) Agilex/Stratix FPGAs into complex multi-layer environments. You are not just a schematic designer; you are a "physicist of the circuit board," ensuring that multi-gigabit signals and high-current power rails maintain integrity from the silicon die to the furthest connector pins.

Detailed Responsibilities & Key Performance Areas

1. FPGA-Centric System Architecture ● Platform Selection: Evaluate and select FPGA/SoC platforms based on I/O count, SerDes capabilities, power envelopes, and thermal constraints.

● Pin-Muxing & Resource Planning: Strategically manage FPGA bank voltages and pin assignments to optimize PCB routing, reduce layer counts, and minimize crosstalk.

● Co-Design: Partner with RTL/Firmware teams to ensure the hardware supports high-speed timing closure and hardware-level IP (like PCIe or Memory Controllers).

2. Advanced SI/PI Analysis (Pre- & Post-Layout)

● Signal Integrity (SI): Model and simulate high-speed channels (SerDes, DDR4/5) using S-parameters and IBIS-AMI models. You will predict and solve reflections, jitter, and ISI (Inter-Symbol Interference) before the board is even fabricated.

● Power Integrity (PI): Perform DC Drop and AC Impedance analysis on the Power Delivery Network (PDN). You must ensure the FPGA receives stable "clean" power despite massive transient current demands (di/dt) from the core logic.

● Stack-up Optimization: Work with fabricators to define controlled-impedance stack-ups using low-loss materials (e.g., Megtron 6/7) to support 28Gbps+ data rates.

3. High-Speed Interface Implementation

● Protocol Mastery: Design layouts for PCIe Gen 4/5, 100G Ethernet, and USB 4.0.

● Precision Timing: Implement ultra-low-jitter clocking solutions, ensuring phase noise does not degrade the performance of high-speed transceivers.

4. Testing, Validation & Hardware Bring-up

● Compliance Testing: Lead the lab effort to validate designs against industry standards (IEEE 802.3, PCIe SIG) using BERTs and 30GHz+ Oscilloscopes.

● Root Cause Analysis: Use your 10+ years of experience to solve "edge case" hardware failures that junior engineers might miss, such as ground bounce or resonant vias.

5. Strategic Vendor & Supply Chain Management

● Fabrication & Assembly Liaison: Partner with high-end PCB fabricators to evaluate DFM (Design for Manufacturing) and DFF (Design for Fabrication). You will negotiate tolerances for high-density interconnect (HDI) boards and ensure the vendor can meet impedance requirements for 28Gbps+ designs.

● Component Engineering & Risk Mitigation: Proactively manage the Bill of Materials (BOM). Identify sole-source risks and qualify second-source alternatives for critical components like Power Management ICs (PMICs), oscillators, and high-speed connectors to prevent production delays.

● Strategic Sourcing for FPGAs: Coordinate with AMD/Altera FAEs (Field Application Engineers) to align on silicon roadmaps, obtain early-access technical documentation, and secure long-lead-time components.

● Technical Vendor Auditing: Evaluate and audit new manufacturing partners (EMS/CM) to ensure their capabilities (e.g., laser drilling, micro-via filling, automated optical inspection) meet the quality standards required for complex embedded systems.

● Cost Optimization: Drive "Design to Cost" initiatives by negotiating bulk pricing with vendors and identifying high-cost design elements that can be simplified without compromising signal integrity.

Technical Competency Matrix Category Requirements FPGA Platforms AMD: Zynq UltraScale+, Kintex/Virtex. Intel: Agilex, Stratix 10, Arria 10.

Simulation Tools Ansys (SIwave, HFSS), Cadence (Sigrity), or HyperLynx. Design Tools Cadence Allegro or Altium Designer (Expert Level).

Lab Instrumentation Sampling Scopes, TDR (Time Domain Reflectometry), VNA (Vector Network Analyzers).

Standards EMI/EMC (CISPR/FCC), Thermal Management, IPC-Class 3.

Qualifications

● Education: BS/MS in Electrical Engineering or related field.

● Track Record: Must have successfully led at least 3-5 full-lifecycle projects involving 12+ layer boards and high-speed FPGAs.

● Leadership: Demonstrated ability to mentor junior designers and interface with global manufacturing partners (CMs).