Celestial AI · 17 hours ago
Senior Engineer, DFT
Santa Clara, CA
Full-time
Onsite
Senior Level
$200K/yr - $220K/yr
5+ years expCelestial AI is a pioneering company in the field of Generative AI and advanced data center infrastructure. They are seeking a Senior DFT Engineer responsible for end-to-end ownership of DFT insertion, verification, and test coverage closure for complex SoC designs, collaborating closely with various teams to ensure robust test coverage and DFT signoff.
Semiconductors
Responsibilities
Perform hands-on DFT implementation, including:
MBIST and BISR insertion and integration
Boundary Scan (IEEE 1149.x) insertion
IJTAG (IEEE 1687) insertion and connectivity
Execute DFT verification, debug, and DFT DRC closure using Siemens Tessent
Identify, debug, and resolve DFT rule violations at both block and top levels
Run, analyze, and debug SpyGlass DFT/RTL checks, working with design teams to close violations
Generate, simulate, and debug MBIST and logic ATPG patterns
Analyze test results and drive test coverage improvement and closure
Develop and validate DFT timing constraints for scan, BIST, and test modes
Create and maintain TCL scripts to automate DFT insertion, verification, and analysis flows
Support hierarchical DFT implementation and resolve integration issues
Collaborate with RTL and Physical Design teams to address DFT-related design issues
Support pre-silicon DFT signoff and assist with post-silicon pattern bring-up and debug
Assist with ATE pattern conversion and debug as needed
Qualification
Required
Bachelor's degree with 6+ years of relevant experience, or Master's degree with 5+ years of relevant experience
5+ years of hands-on DFT implementation experience
Strong proficiency with Siemens Tessent, including: MBIST / BISR insertion and verification, Boundary Scan (IEEE 1149.x), IJTAG (IEEE 1687), ATPG pattern generation and coverage analysis
Proven ability to resolve DFT DRCs, connectivity issues, and testability problems
Strong TCL scripting skills for DFT automation and flow execution
Experience developing and validating scan and test-mode timing constraints
End-to-end DFT lifecycle experience, from RTL/netlist through silicon debug
Strong debugging skills, attention to detail, and sense of ownership
Excellent verbal and written communication skills
Preferred
Experience driving MBIST coverage improvement and repair efficiency optimization
Post-silicon experience, including: Pattern bring-up and debug, Tester pattern conversion, Silicon characterization
Exposure to mixed-signal or SERDES DFT, such as IOBIST or loopback testing
Benefits
Health, vision, dental and life insurance
Company
Celestial AI
AI is touching our lives and driving breakthroughs in healthcare, finance, autonomous systems, and countless other domains.
51-200 employees
H1B Sponsorship
Celestial AI has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
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Trends of Total Sponsorships
2025 (15)
2024 (10)
2023 (4)
2022 (7)
2021 (1)
Funding
Current Stage
Growth StageLeadership Team
David Lazovsky
Founder, CEO
Recent News
Venture Capital Access Online
2025-03-13
2025-03-13
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