Staff Engineer, Digital ASIC Design

We’re a team of bold thinkers, problem-solvers, and innovators driving a digital revolution in medical imaging.

The role of the Principal Digital ASIC Designer offers the opportunity to work within the heart of the product development team and founders and to own the core of what will set Butterfly Network apart. This individual will design, implement, and verify digital signal processing, high speed interface, and system-on-a-chip logic for a suite of next-generation products.

• Develop low-power RTL for large SoCs in an advanced node.
• Implement and optimize signal processing algorithms in RTL.
• Integrate multiple embedded processor cores into a large design.
• Develop efficient high bandwidth on‑chip data paths.
• Other technology, architecture, & productivity duties as assigned.

• BS/MS/PhD in EE/CE (or equivalent practical silicon design experience).
• 8+ years (typical Staff level) in digital IC / ASIC / SoC design with substantial hands‑on RTL ownership and at least one major‑IP or full‑chip tapeout cycle.
• Proven ownership of a defined digital IP/subsystem from micro‑architecture and RTL implementation through verification closure and tapeout support.
• Strong RTL skills in System Verilog/Verilog, including pipelined datapaths, control logic/state machines, and high‑throughput streaming interfaces.
• Experience designing sustained high‑throughput datapaths, including buffering/FIFOs, arbitration/back pressure, bandwidth budgeting, and SRAM/memory interface considerations.
• Strong understanding of silicon‑level design constraints, including clock/reset architecture, CDC/RDC risk mitigation, power‑aware design, and PPA tradeoffs.
• Effective collaboration with verification to drive functional closure through signoff (SV/UVM and/or Python‑based frameworks such as cocotb).
• Experience building and using bit‑accurate reference models (e.g., Python) to validate fixed‑point behavior and enable end‑to‑end checking.
• Experience supporting post‑silicon bring‑up/debug and silicon correlation, partnering with firmware/validation to root‑cause issues and deliver fixes.
• Strong cross‑functional communication to close hardware–firmware interfaces (register maps, control/status paths, data‑plane contracts) with systems/firmware stakeholders.

• Experience implementing compute‑intensive DSP pipelines (e.g., beamforming, filtering, noise reduction, MAC‑heavy datapaths) with fixed‑point design discipline.
• Exposure to ultrasound / medical imaging systems or sensor data acquisition pipelines and image‑quality KPIs.
• Advanced‑node experience (28 nm or smaller), including timing sensitivity and third‑party IP integration.
• Optional:
  Experience integrating programmable compute subsystems (MPU/accelerator), including control interfaces and memory/bandwidth tradeoffs.

• Patient‑Centric Innovators
• Empowered to Impact
• One Team, One Goal
• Growth Champions
• Action‑Oriented Achievers

Butterfly offers a hybrid work model for most positions, with team members spending two or more days a week in the office. This is a hybrid position and will be based out of our office in either the Greater SF Bay Area or Burlington, MA.

• Comprehensive health insurance, encompassing dental and vision coverage, with 100% coverage for medical, dental, and vision through the Base Plan.
• Health Savings Account (HSA) contributions for all enrolled employees.
• Employee Assistance Program.
• 401(k) plan with company match.
• Employee Stock Purchase Plan (ESPP).
• Unlimited Paid Time Off + 10 holiday days a year.
• Parental leave with support for primary caregivers.
• Competitive salaried compensation.
• Equity.
• Opportunity to build a revolutionary healthcare product and save millions of lives.

Estimated salary for this role in Burlington, MA is around $175,000, along with bonus, equity, and comprehensive benefits. Estimated salary for the SF Bay Area is around $200,000, along with bonus, equity, and comprehensive benefits.

Butterfly Network is an equal opportunity employer. We do not discriminate based on race, color, ancestry, religion, gender, national origin, sexual orientation, age, citizenship, marital status, disability, or Veteran status. All information will be kept confidential according to EEO guidelines.

Butterfly Network is an E‑Verify company.