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fable12 is not a job board. It is a record of how long each listing has actually been open, read straight from employers’ own hiring systems. Listings link to the employer; ages are the employer’s own publish date — how we know.

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Jobs

Indexed directly from employers. Every age is their own publish date.

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Under a week9 1–4 weeks42 1–2 months27 2–12 months45 Over a year1

859 postings mention “Principal Systems Engineer” in the description

9 roles

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3d
Principal Mission Systems Engineer, Air Dominance & Strike, Active Clearance
AndurilAir Dominance & StrikeCosta Mesa, California, United States
Apply Principal Mission Systems Engineer, Air Dominance & Strike, Active Clearance at Anduril — opens Anduril’s own board
4d
Senior Principal Rack System Integration Engineer
SambaNovaHardwareSan Jose, California, United States
Apply Senior Principal Rack System Integration Engineer at SambaNova — opens SambaNova’s own board
5d
Software Principal Engineer - HyperScale AI Storage Systems
Dell TechnologiesCork
Apply Software Principal Engineer - HyperScale AI Storage Systems at Dell Technologies — opens Dell Technologies’s own board
5d
Software Senior Principal Engineer - HyperScale AI Storage Systems
Dell TechnologiesCork
Apply Software Senior Principal Engineer - HyperScale AI Storage Systems at Dell Technologies — opens Dell Technologies’s own board
5d
Principal Systems Development Engineer
Dell TechnologiesRound Rock, TX
Apply Principal Systems Development Engineer at Dell Technologies — opens Dell Technologies’s own board
5d
Principal Software Engineer - Networking & Storage Systems
MicrosoftSoftware EngineeringMountain View, CA; Redmond, WA
Apply Principal Software Engineer - Networking & Storage Systems at Microsoft — opens Microsoft’s own board
5d
Principal Software Engineer - AI Infrastructure Engineering Systems
MicrosoftSoftware EngineeringMountain View, CA
Apply Principal Software Engineer - AI Infrastructure Engineering Systems at Microsoft — opens Microsoft’s own board
6d
Principal AI Systems Performance Engineer
SambaNovaSoftwareSan Jose, California, United States
Apply Principal AI Systems Performance Engineer at SambaNova — opens SambaNova’s own board
2d
Principal Mechanical Engineer - Vacuum
Commonwealth Fusion SystemsSuperconductorMilpitas, CA
Apply Principal Mechanical Engineer - Vacuum at Commonwealth Fusion Systems — opens Commonwealth Fusion Systems’s own board