Staff DFT Engineer

Phizenix · Santa Clara, CA (Onsite) · Engineering

Posted 2026-05-05

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What You Can Expect

We are looking for a Senior Staff DFT Engineer with hands-on experience in scan-based DFT implementation, including Scan Streaming Network (SSN) and IJTAG (IEEE 1687). This role focuses on end-to-end scan execution, from insertion and verification through DRC closure, coverage improvement, and final DFT signoff. The ideal candidate will own scan quality, coverage closure, and DFT signoff for complex SoC designs.

ESSENTIAL DUTIES AND RESPONSIBILITIES

Lead hands-on scan DFT implementation, including:Scan insertion and stitching

Scan Streaming Network (SSN) implementation

IJTAG (IEEE 1687) insertion and connectivity

Perform scan DFT verification, debug, and DFT DRC closure

Debug and resolve scan-related DRCs, connectivity issues, and control signal problems

Run, analyze, and debug SpyGlass DFT/RTL checks, partnering with design teams to resolve violations

Generate, simulate, and debug ATPG scan patterns

Analyze ATPG results and drive scan coverage improvement and closure

Develop and validate DFT-related timing constraints (scan, shift, capture, and test modes)

Create and maintain TCL scripts for scan insertion, ATPG setup, and coverage analysis

Optimize scan implementations for pattern efficiency and test quality

Support hierarchical scan integration at both block and SoC levels

Collaborate closely with RTL and Physical Design teams to resolve scan-related issues

Support pre-silicon DFT signoff and post-silicon pattern bring-up and debug

Assist with ATE pattern conversion and scan debug activities

What We're Looking For

Bachelor’s degree in Computer Science, Electrical Engineering or

related fields and 5-10 years of related professional experience OR Master’s degree and/or PhD in Computer Science, Electrical Engineering or

related fields with 3-5 years of experience.

8+ years of hands-on experience in DFT scan implementation

Strong expertise with Siemens Tessent, including:Scan insertion and verification

ATPG pattern generation and coverage analysis

IJTAG (IEEE 1687) and SSN implementation

Strong understanding of:Scan Streaming Network (SSN)

IEEE 1149.x, IEEE 1500, and IEEE 1687 standards

Proven ability to resolve scan DFT DRCs and drive coverage closure

Strong TCL scripting skills for automation and flow customization

Experience developing and validating scan and test-mode timing constraints

Full DFT lifecycle experience, from RTL/netlist through silicon debug

Strong debugging, ownership, and problem-solving skills

Excellent verbal and written communication skills

PREFERRED QUALIFICATIONS

Experience with scan compression and advanced scan architectures

Post-silicon experience, including:Pattern bring-up and debug

Silicon characterization and yield learning

Experience mentoring junior engineers or owning DFT scan signoff

California Pay Range

$130,000—$180,000 USD

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