Physical Design Signoff Engineer

Were seeking a Physical Design Signoff Engineer to join our team and drive the final verification stage of SOC design across Apples Hardware Tech group. Signoff is the critical last checkpoint before tapeout, where designs are validated against manufacturing, timing, and power criteria. In this role, youll own signoff closure for blocks and full-chip designs, working closely with design and CAD teams to make sure silicon is ready for production. The Physical Design Signoff Engineer will define and own the signoff criteria for PD/PNR designs across static timing analysis, signal integrity, EMIR, and clock construction and simulation, and will drive signoff reviews with design teams through readiness assessment, closure of open items, and alignment of methodology across groups. We are looking for a rigorous, self-driven engineer with deep physical design expertise, a team player who pays a high level of attention to detail, communicates clearly with designers under tape-out pressure, and is equally comfortable debugging a timing or IR drop violation and setting the bar that determines when a block is done. The role requires developing and maintaining the signoff checks, scripts, automation, and dashboards used for verification and metric tracking, enabling and supporting design teams on that signoff infrastructure, and performing flow signoff to verify that CAD flows are generating correct results. Youll partner cross-functionally with PNR design, CAD, Technology, and Power teams to keep methodology consistent and grounded in what the technology and tools can deliver.BS in Computer Science or related field with 10+ years of relevant industry experienceProficient in programming using Python, Perl or Tcl Hands-on experience with industry PNR and timing tools such as Cadence Innovus, Synopsys ICC2 / Fusion Compiler, PrimeTime, or Tempus Experience taking block-level or chip-level designs through physical implementation and signoff closure on production silicon Experience in timing closure, signal integrity, low-power design techniques, and clock-tree construction Excellent communication skills and ability to collaborate across design, CAD, and technology teams Understanding of tradeoffs to meet PPA (power, performance, area) targets, and experience defining implementation recipes to improve PPA