Staff Digital Design Engineer - PHY

Location: Bay Area, Vancouver, or Toronto; onsite Monday–Friday

Company

hirify.global is an early-stage chiplet startup developing NuLink, a chiplet interconnect platform for next-generation AI and HPC systems.

What you will do

• Lead D2D PHY digital design from microarchitecture definition through synthesis and physical-design handoff.
• Design data-path and clocking architectures for UCIe-compliant advanced-package PHYs.
• Develop SystemVerilog RTL for link training, calibration, rate adaptation, CDC, FIFO alignment, and lane deskew.
• Optimize designs for power, performance, area, timing, and synthesis quality of results.
• Create SDC constraints, UPF power specifications, and LINT/CDC flows for multi-clock designs.
• Coordinate with analog, verification, physical-design, and firmware teams while mentoring 2–3 digital designers and leading design reviews.

Requirements

• 8+ years of digital frontend design experience, including 4+ years with PHY or high-speed interfaces.
• Three or more successful tapeouts as a design lead in advanced nodes, 7 nm or below.
• Deep expertise in D2D PHY, DDR PHY, or SerDes digital design.
• Expert SystemVerilog RTL design and synthesis optimization skills.
• Strong understanding of UCIe or comparable high-speed interfaces such as DDR or SerDes, plus CDC design, link-training protocols, and elastic-buffer architectures.
• Hands-on experience with Synopsys DC/Fusion Compiler or Cadence Genus, SDC, UPF, and STA methodologies.

Nice to have

• 12+ years of experience with demonstrated technical leadership.
• UCIe PHY design or certification experience.
• DDR4, DDR5, LPDDR, DFI, PCIe, CXL, or SerDes digital-control experience.
• Advanced packaging knowledge, including 2.5D, 3D, or organic substrates.
• PHY-control firmware or low-level driver development, Python/Perl/Tcl scripting, or PHY-design publications and patents.

Culture & Benefits

• Fast-paced early-stage startup environment.
• Hands-on technical leadership role with cross-functional ownership.
• Fun work environment with excellent benefits.
• Regular onsite collaboration from Monday through Friday.