Job Title

Join the leading chiplet startup! As an Eliyan Staff Digital Design Engineer, you will be working at a fastpaced earlystage startup creating technologies that fuel tomorrows chipletbased systems with bestinclass power, area, manufacturability, and design flexibility. In this role you will lead the frontend design of our D2D PHY the core tech behind NuLink, our chiplet interconnect platform. Youll own the digital PHY from microarchitecture through synthesis, working closely with our architecture, analog, verification, and physical design teams. This is a handson technical leadership role. Youll define PHY architecture, write RTL, optimize for synthesis, create timing constraints, develop firmware sequences, and ensure clean integration across the stack. Your work directly enables nextgen chipletbased AI and HPC systems. We offer a fun work environment with excellent benefits. ONSITE MF. Key Responsibilities: Architecture & RTL Design Own D2D PHY digital design from microarchitecture definition through synthesis and PD handoff Design data path and clocking architecture for UCIecompliant advanced package PHY Write RTL for link training, calibration engines, rate adaptation, CDC, FIFO alignment, and lane deskew Create microarchitecture specs with power analysis, latency metrics, and performance characterization Make architectural tradeoffs balancing performance, power, area, and timing Synthesis & Optimization Drive synthesis optimization: area, timing, power, QoR Create comprehensive SDC constraints for multiclock domains, false paths, multicycle paths, CDC Generate UPF power specifications with voltage domains, isolation, and retention Establish LINT/CDC flows with rulesets and waiver management Deliver synthesisready netlists with handoff documentation for physical design Technical Leadership & Collaboration Coordinate with analog PHY team on digital control for TX/RX, PLL, calibration Partner with verification team on testbench requirements, coverage goals, and protocol compliance Collaborate with physical design on placement guidelines, clock tree requirements, routing constraints Work with firmware team on register interfaces, link training sequences, runtime control Mentor 23 digital designers on frontend design and synthesis optimization Drive design reviews and technical decisions across teams Required Qualifications: 8+ years digital frontend design with 4+ years in PHY or highspeed interfaces 3+ successful tapeouts as design lead in advanced nodes (7nm or below) Deep expertise in D2D PHY, DDR PHY, or SerDes digital design Expert SystemVerilog RTL design with strong synthesis optimization skills Strong understanding of UCIe or other highspeed interfaces like DDR/Serdes Advanced CDC design, link training protocols, elastic buffer architectures Handson with synthesis tools (Synopsys DC/Fusion Compiler or Cadence Genus) Experience with SDC constraints, UPF, STA methodology Proven ability to lead frontend design and coordinate across teams Preferred Qualifications: 12+ years with demonstrated technical leadership UCIe PHY design or certification experience DDR4/DDR5/LPDDR PHY or DFI interface experience SerDes digital control (TX/RX equalization, CDR), PCIe PHY, or CXL PHY experience Advanced packaging knowledge: 2.5D, 3D, organic substrate Firmware development for PHY control or lowlevel driver implementation Python/Perl/Tcl scripting for design automation Publications or patents in PHY design #J-18808-Ljbffr