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Principal Engineer Jobs in California.

All active Principal Engineer roles based in California.

View Principal Engineer salary insights in California →
Total jobs
255
positions indexed
New today
41
last 24 hours
Companies
87
actively hiring
Worldwide remote
0
from anywhere

How many Principal Engineer jobs in California are there right now?

There are 255 open Principal Engineer jobs in California on JobsRadar right now, from 87 companies hiring directly. 41 were added in the last 24 hours; the board was last refreshed on July 29, 2026 at 06:00 UTC.

search: principal engineer in: California Clear all
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Relativity Space
Principal Turbomachinery Test Responsible Engineer
Relativity Space
⚡ Apply early Long Beach, California Onsite $185,000–$277,000
● New 👁 Seen ✓ Applied 7h ago
Inversion
Staff Flight Software Engineer, Arc Vehicle
Inversion
⚡ Apply early Playa Vista, California, Unite... Onsite $165,000–$236,000
● New 👁 Seen ✓ Applied 7h ago
AL
Principal Package Signal & Power Integrity
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $203,000–$203,000
● New 👁 Seen ✓ Applied 7h ago
Zscaler
Principal Product Manager, Cloud Reliability and Premium Connectivity Services
Zscaler
⚡ Apply early San Jose, California, USA Hybrid $171,500–$245,000
● New 👁 Seen ✓ Applied 8h ago
Epicrispr Biotechnologies
Research Associate II/ Senior Research Associate, Therapeutics
Epicrispr Biotechnologies
⚡ Apply early South San Francisco, Californi... Onsite $95,000–$115,000
● New 👁 Seen ✓ Applied 9h ago
AL
Product Application Engineer, Principal
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite
● New 👁 Seen ✓ Applied 10h ago
AL
Photonic Packaging Engineer, Principal
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $205,000–$255,000
● New 👁 Seen ✓ Applied 10h ago
AL
Principal Design Verification Engineer
Astera Labs
⚡ Apply early California Onsite $185,000–$230,000
● New 👁 Seen ✓ Applied 10h ago
AL
Principal Physical Design Engineer, STA
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $209,000–$209,000
● New 👁 Seen ✓ Applied 10h ago
AL
Principle Design Verification Engineer SerDes/PHY
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $207,000–$230,000
● New 👁 Seen ✓ Applied 10h ago
AL
Optical Firmware Engineer, Principal
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite
● New 👁 Seen ✓ Applied 10h ago
AL
Physical Design Engineer (Place & Route)
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite
● New 👁 Seen ✓ Applied 10h ago
AL
Principal Product Engineer
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $384,800–$384,800
● New 👁 Seen ✓ Applied 10h ago
AL
Optical Test Engineer, Tech Lead
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $175,000–$215,000
● New 👁 Seen ✓ Applied 10h ago
AL
Product Integration, Senior Principal - Active Electric Cable / Smart Cable Module Business
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite
● New 👁 Seen ✓ Applied 10h ago
AL
Senior Principal System Validation Engineer
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $205,000–$205,000
● New 👁 Seen ✓ Applied 10h ago
AL
Principal System Validation Engineer (AI Fabric Switches)
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $237,000–$237,000
● New 👁 Seen ✓ Applied 10h ago
AL
Principal Engineer, SOC IP Systems & Lifecycle Management
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $175,000–$175,000
● New 👁 Seen ✓ Applied 10h ago
AL
Principal Silicon Validation Engineer, SerDes/PAM4
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $185,000–$185,000
● New 👁 Seen ✓ Applied 10h ago
AL
Principal Digital Design Engineer
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite
● New 👁 Seen ✓ Applied 10h ago
AL
Principal Product Application Engineer - Leo
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $175,000–$230,000
● New 👁 Seen ✓ Applied 10h ago
AL
Principal Physical Design Engineer, Methodology
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $185,000–$240,000
● New 👁 Seen ✓ Applied 10h ago
AL
Principal Product Applications Engineer - Ethernet
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $158,400–$230,000
● New 👁 Seen ✓ Applied 10h ago
AL
Principal Product Application Engineer - PCIe
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $170,500–$220,000
● New 👁 Seen ✓ Applied 10h ago
AL
Principal Optical Module Validation Engineer
Astera Labs
⚡ Apply early San Jose, California, United S... Onsite $160,000–$240,000
● New 👁 Seen ✓ Applied 10h ago

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Frequently asked questions

How many Principal Engineer jobs in California are open right now?
255 Principal Engineer jobs in California are open across 87 companies, as of July 29, 2026.
Which companies are hiring Principal Engineer jobs in California?
Relativity Space, Inversion, Astera Labs, Zscaler and Epicrispr Biotechnologies are among the 87 companies currently hiring Principal Engineer jobs in California.
How current are these listings?
Every listing comes straight from the employer’s own careers system and is re-checked three times a day. This page was last updated on July 29, 2026 at 06:00 UTC.

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