Principal Engineer Jobs in the City of London

Principal Engineer
Central London > City of London

The median Principal Engineer salary in the City of London is £112,500 per year, according to job vacancies posted during the 6 months leading to 30 May 2025.

The table below provides salary benchmarking and summary statistics, comparing them to the same period in the previous two years.

6 months to
30 May 2025
Same period 2024 Same period 2023
Rank 131 167 187
Rank change year-on-year +36 +20 +75
Permanent jobs requiring a Principal Engineer 6 16 42
As % of all permanent jobs advertised in the City of London 0.31% 0.48% 0.93%
As % of the Job Titles category 0.33% 0.50% 0.97%
Number of salaries quoted 6 16 42
10th Percentile £103,750 £87,500 £77,500
25th Percentile £107,500 £91,250 £78,750
Median annual salary (50th Percentile) £112,500 £120,000 £82,500
Median % change year-on-year -6.25% +45.45% -21.43%
75th Percentile £143,750 £125,000 £111,250
90th Percentile £152,500 - £115,000
Central London median annual salary £112,500 £115,000 £82,500
% change year-on-year -2.17% +39.39% -21.43%

All Permanent IT Job Vacancies
City of London

For comparison with the information above, the following table provides summary statistics for all permanent IT job vacancies in the City of London. Most job vacancies include a discernible job title that can be normalized. As such, the figures in the second row provide an indication of the number of permanent jobs in our overall sample.

Permanent vacancies in the City of London with a recognized job title 1,807 3,213 4,331
% of permanent jobs with a recognized job title 93.19% 96.17% 96.24%
Number of salaries quoted 1,368 2,519 3,610
10th Percentile £41,250 £41,250 £42,225
25th Percentile £52,500 £53,875 £55,000
Median annual salary (50th Percentile) £72,500 £73,441 £75,000
Median % change year-on-year -1.28% -2.08% +3.45%
75th Percentile £95,000 £95,000 £97,500
90th Percentile £120,000 £112,500 £115,000
Central London median annual salary £72,500 £72,500 £74,744
% change year-on-year - -3.00% +3.10%

Principal Engineer
Job Vacancy Trend in the City of London

Job postings that featured Principal Engineer in the job title as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for Principal Engineer in the City of London

Principal Engineer
Salary Trend in the City of London

3-month moving average salary quoted in jobs citing Principal Engineer in the City of London.

Salary trend for Principal Engineer in the City of London

Principal Engineer
Salary Histogram in the City of London

Salary distribution for jobs citing Principal Engineer in the City of London over the 6 months to 30 May 2025.

Salary histogram for Principal Engineer in the City of London

Principal Engineer Skill Set
Top 30 Co-occurring Skills and Capabilities in the City of London

For the 6 months to 30 May 2025, Principal Engineer job roles required the following skills and capabilities in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the City of London region featuring Principal Engineer in the job title.

1 6 (100.00%) Software Engineering
2 4 (66.67%) TDD
2 4 (66.67%) Node.js
3 3 (50.00%) RESTful
3 3 (50.00%) AWS
3 3 (50.00%) SaaS
3 3 (50.00%) Enterprise Software
3 3 (50.00%) Go
3 3 (50.00%) Python
3 3 (50.00%) SOA
3 3 (50.00%) Unit Testing
3 3 (50.00%) Integration Testing
3 3 (50.00%) Continuous Integration
3 3 (50.00%) Microservices
3 3 (50.00%) Rust
4 2 (33.33%) Serverless
4 2 (33.33%) Socket.IO
4 2 (33.33%) Data Science
4 2 (33.33%) API Development
4 2 (33.33%) API Design
4 2 (33.33%) Data Engineering
4 2 (33.33%) Infrastructure as Code
4 2 (33.33%) Social Skills
4 2 (33.33%) Event-Driven
4 2 (33.33%) Platform Engineering
4 2 (33.33%) Containerisation
4 2 (33.33%) Enterprise Architecture
4 2 (33.33%) Degree
4 2 (33.33%) Front Office
4 2 (33.33%) Banking

Principal Engineer Skill Set
Co-occurring Skills and Capabilities in the City of London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 1 (16.67%) Confluence
Cloud Services
1 3 (50.00%) AWS
1 3 (50.00%) SaaS
2 2 (33.33%) Serverless
Database & Business Intelligence
1 1 (16.67%) MongoDB
Development Applications
1 1 (16.67%) Git
1 1 (16.67%) JIRA
General
1 2 (33.33%) Banking
1 2 (33.33%) Front Office
1 2 (33.33%) Investment Banking
1 2 (33.33%) Social Skills
Libraries, Frameworks & Software Standards
1 4 (66.67%) Node.js
2 3 (50.00%) RESTful
3 2 (33.33%) Express.js
3 2 (33.33%) REST
3 2 (33.33%) Socket.IO
3 2 (33.33%) WebSockets
4 1 (16.67%) GraphQL
4 1 (16.67%) Kafka
4 1 (16.67%) React
Miscellaneous
1 3 (50.00%) Enterprise Software
2 1 (16.67%) Cloud Native
2 1 (16.67%) Distributed Systems
2 1 (16.67%) Greenfield Project
Processes & Methodologies
1 6 (100.00%) Software Engineering
2 4 (66.67%) TDD
3 3 (50.00%) Continuous Integration
3 3 (50.00%) Integration Testing
3 3 (50.00%) Microservices
3 3 (50.00%) SOA
3 3 (50.00%) Unit Testing
4 2 (33.33%) Analytics
4 2 (33.33%) API Design
4 2 (33.33%) API Development
4 2 (33.33%) Containerisation
4 2 (33.33%) Data Engineering
4 2 (33.33%) Data Science
4 2 (33.33%) DevOps
4 2 (33.33%) Enterprise Architecture
4 2 (33.33%) Event-Driven
4 2 (33.33%) Infrastructure as Code
4 2 (33.33%) Platform Engineering
5 1 (16.67%) Design Patterns
5 1 (16.67%) Mentoring
Programming Languages
1 3 (50.00%) Go
1 3 (50.00%) Python
1 3 (50.00%) Rust
2 2 (33.33%) Java
3 1 (16.67%) Kotlin
3 1 (16.67%) TypeScript
Qualifications
1 2 (33.33%) Degree
Systems Management
1 1 (16.67%) Kubernetes