▼0%
£52,075
Avg. Base Salary (GBP)
/ year
Avg. Base Salary (GBP)
10%
£41k
MEDIAN
£52k
90%
£76k
The average salary for a Principal Engineer is £52,075 in 2025
Base Salary
£41k - £76k
Bonus
£1k - £5k
Total Pay
£41k - £77k
Is Average Principal Engineer Salary in United Kingdom your job title? Find out what you should be paid
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What is the Pay by Experience Level for Principal Engineers?
▼2%
What Do Principal Engineers Do?
Find your market worth – how it works:
Common Health Benefits for a Principal Engineer
Medical
61%
Dental
22%
Vision
9%
None
39%
Gender Breakdown for Principal Engineers
Male
76.9%
Female
23.1%
This data is based on 13 survey responses. Learn more about the gender pay gap.
FAQs About Principal Engineers
What is the highest pay for Principal Engineers?
Our data indicates that the highest pay for a Principal Engineer is £76k / year
What is the lowest pay for Principal Engineers?
Our data indicates that the lowest pay for a Principal Engineer is £41k / year
How can Principal Engineers increase their salary?
Increasing your pay as a Principal Engineer is possible in different ways. Change of employer: Consider a career move to a new employer that is willing to pay higher for your skills. Level of Education: Gaining advanced degrees may allow this role to increase their income potential and qualify for promotions. Managing Experience: If you are a Principal Engineer that oversees more junior Principal Engineers, this experience can increase the likelihood to earn more.