CPU Custom Memory Design - SRAMs and Register Files

NUVACORE; Santa Clara, Northern (CA, KY); Hybrid; USD 180,000 - 230,000; Full time

Job summary

NUVACORE in Santa Clara is seeking a Custom Memory Design Engineer to drive SRAM and Register Files design across the full memory IP flow, from schematic to signoff, collaborating with RTL, CAD, and foundry teams.

You will own layout supervision, PDV closure, and end-to-end signoff (DRC/LVS/antenna, extraction, timing and power) at advanced CMOS nodes, with a track record delivering production‑level memory IP.

Qualifications

• BS or MS degree in a relevant field with 8+ years in custom memory circuit design (SRAM/Register File).
• Hands-on transistor-level circuit design with memory arrays, sense amps, decoders in advanced CMOS nodes.
• Deep knowledge of SPICE simulations and memory margins for SRAM/Register File.
• Proficient with industry-standard EDA tools for schematic, layout, extraction, characterization.
• Track record delivering production-level custom memory IP through tape-out with silicon-validated PPA.
• Deep end-to-end signoff experience (DRC/LVS/antenna, extraction, STA, EM/IR).
• Strong collaboration skills with foundry, CAD, and physical design teams.

Responsibilities

• Own schematic development and characterize custom memories (SRAM, register files) to optimize PPA.
• Supervise layout implementation, macro floor planning, routing specs, and PDV closure.
• Own end-to-end memory IP signoff across DRC/LVS/antenna, extraction, timing, power, and noise.
• Partner with Foundry/PDK, CAD, Physical Design, RTL and DFT teams to benchmark tech and co-optimize memories.
• Collaborate with RTL to define memory functional specs and timing behaviors for RTL modeling.
• Define and drive tools, flows, and methodology (TFM) to raise design efficiency and best practices.

Skills

Memory design

Schematic design

Transistor-level design

SPICE simulations

EDA tools

IP tape-out

Signoff - DRC/LVS/Antenna

RTL collaboration

Communication & cross-team

Education

BS or MS in ECE/related field

Tools

EDA tools

Job description

We have new roles being added daily. In the meantime, if you see a way to contribute to building high-performance CPUs and work with world-class teams,

CPU Custom Memory Design - SRAMs and Register Files

Nuvacore is building ground-up high performance, low-power CPU for next-generation compute workloads. As a member of the CPU-specific custom circuit design team, you will enable the design to achieve the target PPA specifications for the product.

THE ROLE

As a Custom Memory Design Engineer, you will participate in the following:

• Own schematic development and characterize custom memories (SRAM, register files) to optimize PPA at advanced process nodes.
• Supervise layout implementation, defining macro floor planning, critical routing specifications, and driving physical design verification (PDV) closure.
• Own end-to-end memory IP signoff: schematic and layout through DRC/LVS/antenna, parasitic extraction, and characterization (timing, power, and noise in Liberty/CCS format) across PVT corners, meeting target PPA commitments.
• Partner with Foundry/PDK, CAD, Physical Design, RTL and DFT teams to benchmark new process technology, validate IP on testchips, and co-optimize custom memories for downstream design PPA.
• Collaborate closely with RTL, providing explicit custom memory functional specifications, timing behaviors, and state definitions to support accurate RTL modeling.
• Define and drive adoption of Tools, Flows, and Methodology (TFM) — including characterization automation and compiler QA — to raise design efficiency and set team-wide best practices.

Requirements - Must Have

• Hold a BS or MS degree with 8+ years of experience in custom memory circuit design - SRAMs, and/or Register files.
• Hands-on transistor-level circuit design experience with combo cells, sequential logic in static/dynamic logic families, as well as memory arrays — bit cells, sense amps, decoders — in advanced CMOS nodes.
• Deep knowledge of SPICE simulations, SRAMs / Register File circuit margins, and special memory cells architecture.
• Proficient with industry-standard EDA tools for schematic, layout, extraction, and characterization, applied to custom memory design workflows.
• Demonstrated track record delivering production-level custom memory IP through tape-out, with silicon-validated PPA in high-volume products.
• Deep understanding of end-to-end signoff for custom memories — DRC/LVS/antenna, extraction, Spice margins, STA, EM/IR — and characterization flows spanning timing, power, and noise.
• Well-versed in STA and Liberty/CCS lib model development and correlation, including timing and power characterization for both Functional and DFT (Design for Test) modes.
• Strong communication and collaboration skills, comfortable working directly with foundry, CAD, and physical design partner teams.

Requirements - Nice to Have

• Substantial experience across the full embedded memory design flow — architecture, circuit design, physical implementation, compiler automation, characterization, and timing/model generation.
• Experience designing and optimizing complex memory sub-blocks (self timed design tracking loops, read/write assist schemes, power-gating headers) and translating PDK device characteristics into cell/bit-cell circuit decisions.
• Proven PPA-focused execution, including SRAM architecture trade-offs, critical-path modeling, full-cut analysis, and extensive Monte Carlo variation studies.
• Demonstrated experience converging on macro verification, including functional formal equivalence (LEC) and dynamic SPICE-versus-RTL co-simulation (cosim) methods.
• Experience partnering directly with foundries on PDK bring-up and device co-optimization (DTCO) at leading-edge nodes.
• Proficient in Python, Perl, or TCL to build and improve design, characterization, and QA automation.
• Experience using Agentic AI tools for productivity and automation.