Principal Software Engineer
Trinzic
El Segundo, CA · Posted October 10, 2026
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Where El Segundo, CA ranks
Where El Segundo, CA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #7Best cities for manufacturing and industrial pay after cost of living$145k · of 35
- #8Best cities for energy and utilities pay after cost of living$146k · of 18
- #8Best all-round cities for new graduates in the West Coast58 / 100 · of 39
- #10Best cities for manufacturing and industrial jobs339 openings · of 100
- #12Best cities for software and engineering jobs in the West Coast491 openings · of 60
- #14Cities with the most jobs that do not need a four-year degree in the West Coast48 jobs · of 47
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
Pay compared with the market
This listing does not state pay. Across 91 open principal software engineer listings that state pay, the middle half runs $208,500 to $320,000 and the median is $275,000.
Listed pay is what employers advertise, not what people are paid.
Principal Software Engineer salaries by state · Check your own pay
How AI is used in this kind of work
Among software developers, AI is already used for some of the tasks. Measured exposure for software developers: 29% (some).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
About the job
We are currently hiring a Principal Software Engineer to lead software development and architecture for mission-critical systems supporting U.S. Space Force capabilities. Drive technical leadership, mentor teams, and collaborate across multiple development efforts. Ideal for experienced engineers with a strong background in distributed systems and full stack development.