Job Details

Positron.ai specializes in developing custom hardware systems to accelerate AI inference. These inference systems offer significant performance and efficiency gains over traditional GPU-based systems, delivering advantages in both performance per dollar and performance per watt. Positron exists to create the world's best AI inference systems.

Position : Senior ASIC Design Engineer
Company : Positron.ai
Job Type : Full-time
Reports To : Director of ASIC Engineering
Location : Remote

Position Overview

As a Senior ASIC Design Engineer, you will take a leadership role in defining, implementing, and delivering critical IP blocks and subsystems for Positron.ai's inference ASICs/SoCs. You will own the microarchitecture from high-level concept through RTL signoff, collaborating across architecture, verification, and physical design to achieve ambitious PPA and schedule goals. In addition to hands-on SystemVerilog design, you will mentor junior engineers, influence methodology, and drive key architectural tradeoffs that impact silicon performance and efficiency.

Key Responsibilities

• Define and document microarchitecture for complex IP blocks/subsystems.
• Deliver production-quality, parameterized SystemVerilog RTL with well-defined interfaces, power/clock intent, and embedded assertions.

Technical Ownership & Signoff:

• Lead lint, CDC/RDC, DFT integration, and synthesis bring-up; collaborate with PD on floorplan and timing closure.
• Own PPA metrics for assigned blocks and drive microarchitectural optimizations to meet targets.

Advanced Interface & Memory Integration:

• Architect and integrate high-performance interconnects (AXI/CHI/ACE), DMA engines, coherency logic, and high-speed memory interfaces (HBM/DDR).
• Engage with IP vendors and internal stakeholders to ensure seamless integration.
• Develop and enforce coding guidelines, reusable IP packaging, and signoff checklists.
• Contribute automation flows (Python/Tcl/Make/CI) to improve team efficiency.

Cross-Functional Collaboration:

• Partner closely with Verification to define test plans and reference models.
• Work with Architecture and Performance teams to correlate models against RTL.
• Support bring-up, post-silicon debug, and customer engagements as required.

Mentorship & Technical Leadership:

• Guide junior engineers in design techniques, methodology, and problem-solving.
• Lead design reviews, drive consensus on tradeoffs, and advocate for best-in-class solutions.

Required Qualifications

• BS/MS in EE/CE (or related) with 8+ years of ASIC/SoC RTL design experience on complex, high-performance silicon.
• Proven track record of leading designs from spec → microarchitecture → RTL → signoff with strong PPA outcomes.
• Deep SystemVerilog RTL expertise, including clocking, resets, CDC/RDC handling, and protocol correctness.
• Extensive experience with front-end flows/tools (lint, CDC, synthesis/STA, DFT) using major EDA suites.
• Hands-on expertise with at least three of: HBM/DDR, PCIe/CXL, AMBA AXI/ACE/CHI, cache/memory hierarchies, high-throughput datapaths.
• Strong cross-functional communication skills, capable of leading technical discussions and producing clear specifications.

Preferred Qualifications

• Background in AI/ML accelerator design (matrix/vector engines, compression, NoC bandwidth planning).
• Formal verification/SVA expertise for property checking and design assertions.
• Experience with low-power design techniques (clock-/power-gating, UPF/CPF).
• Collaboration experience with cocotb/UVM for checkers and reference model co-development.
• Familiarity with RISC-V subsystems, coherence protocols, or customer-owned tooling (COT) flows.

Why Join Us?

• Shape the next generation of AI inference hardware with a high-caliber, collaborative team.
• Take technical ownership of critical silicon components that directly impact product success.
• Competitive salary + equity, comprehensive benefits, and flexible work environment.
• Opportunities to innovate, lead, and grow your influence in a rapidly evolving space.

Interested?
Apply with your resume and a brief note describing a block or subsystem you led from concept to tape-out, highlighting the PPA challenges you addressed and the architectural tradeoffs you drove.