# System & Advanced Packaging Design Lead at Phizenix

> Hybrid · United States · Staff · Design · open. Source: https://alderhq.app/jobs/greenhouse%3Aphizenix%3A5450006008 (read 2026-11-10).

## Facts (observed)

- Company: [Phizenix](https://alderhq.app/companies/phizenix)
- Location text: Santa Clara, CA (Hybrid); Phizenix
- Where it can be done from (inferred): Hybrid · United States (evidence: "Location: Santa Clara, CA (Hybrid); Phizenix")
- Posted: 2026-10-12 (29 days ago)
- First seen by alder: 2026-11-07 · last verified: 2026-11-08
- Reposted: 0 times · edited: 0 times
- Apply on the employer's site: https://job-boards.greenhouse.io/phizenix/jobs/5450006008
- Skills listed (inferred): Distributed systems

## Pay and sponsorship

- Posted pay: $180k–$200k per year (from the listing's pay field)
- Market band for similar posted roles (SF Bay Area, n 76): p25 $185k, median $215k, p75 $238k

## Description (the employer's text)

### Role Overview

We are seeking an Advanced 2.5D/3D/Chiplet packaging Lead, who will be directing Signal Integrity for Package, PCB and System design for Copper Interconnects beyond 200G, Work on enabling advanced packaging for Driver, TIA & Optics for AI Scale up engine including SI/ PI, Reliability, Thermals and HVM; Also drive Micro-LED packaging and Heterogeneous package development. Good understanding of OSAT ecosystem and drive the development of complete solutions for data-centers

### Key Responsibilities

### Technical Leadership & Execution

- Own package, PCB, and system-level signal integrity architecture for 200G+/lane copper interconnects (C2M, C2C, and cable assemblies) — from channel budgeting and topology definition through post-layout signoff and correlation with silicon measurements.
- Drive 2.5D/3D and heterogeneous package development for co-packaged driver, TIA, and optical engines, including substrate architecture, interposer/bridge evaluation, and die–package co-design with the SerDes and analog design teams.
- Lead micro-LED and photonic packaging development: optical coupling and alignment strategy, hermeticity and reliability, and thermal co-design with the optical engine.
- Define and manage the OSAT and substrate supplier strategy — technology selection, DFM reviews, JEDEC qualification, yield ramp, and HVM readiness.
- Own package-level power integrity and thermal strategy: PDN targets, decoupling plans, lid/TIM selection, and clear signoff criteria across programs.
- Coordinate cross-functional execution across silicon design, product/test engineering, systems hardware, and manufacturing partners; run design reviews and manage schedule and risk.
### Hands-On Design

- Personally drive substrate stackup definition, ballmap/pinmap optimization, and high-density breakout and escape routing studies for high-speed designs.
- Perform 3D EM extraction and channel simulation (HFSS/Q3D, ADS or equivalent), S-parameter quality checks, and COM/IL/RL budgeting against IEEE 802.3 and OIF-CEI specifications.
- Build and correlate PDN and thermal models spanning die, package, and board.
- Lead lab characterization: VNA/TDR measurements, BER and eye-margin testing, model-to-measurement correlation, and failure analysis support.
- Author package design guidelines, review checklists, and reference collateral used across product programs.
### Required Qualifications

### Education & Experience

- Ph.D. in Electrical Engineering (or related) with 5+ years, OR M.S. with 8+ years of Advanced package development in high volume.
- Proven experience leading teams to successful execution, with multiple products delivered in advanced CMOS nodes.
### Core Technical Skills

- Deep SI/PI expertise for multi-GHz serial links: 112G/224G PAM4 channel design, COM analysis, crosstalk and mode-conversion control, and connector/cable interfaces.
- Advanced packaging depth: FCBGA, RDL/fan-out, 2.5D interposers and silicon bridges, substrate design rules, and materials selection.
- Fluency with industry tools: HFSS, Q3D, SIwave/PowerSI, ADS channel simulation, Cadence APD/Allegro (or equivalent), and thermal tools such as Icepak or FloTHERM.
- Reliability and qualification: JEDEC standards, moisture sensitivity, thermo-mechanical stress, and warpage/coplanarity management for large-body packages.
- Working knowledge of optics packaging: VCSEL/PD or silicon-photonics co-packaging, fiber and lens coupling, and active alignment concepts.
### Leadership & Program Skills

- Track record leading small internal teams and external partners (OSATs, substrate vendors, contract labs) through complete product cycles into volume production.
- Strong program discipline: schedule and risk management, structured design reviews, and clear documentation in a fast-moving environment.
- Excellent cross-functional communication with silicon, systems, and executive stakeholders; comfortable presenting technical trade-offs to customers and partners.
### Preferred Qualifications

- Experience with co-packaged optics, linear-drive optics, or active copper/electrical cable (ACC/AEC) products.

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Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/greenhouse%3Aphizenix%3A5450006008 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.