Principal Engineer Contract Job Trends in London

Principal Engineer
England > London

The median Principal Engineer daily rate in London is £625, according to job vacancies posted in the 6 months leading up to 18 December 2025.

The table below compares current contractor rates and summary statistics with the previous two years.

6 months to
18 Dec 2025
Same period 2024 Same period 2023
Rank 333 328 380
Rank change year-on-year -5 +52 +153
Contract jobs requiring a Principal Engineer 36 41 25
As % of all contract jobs in London 0.25% 0.27% 0.13%
As % of the Job Titles category 0.27% 0.29% 0.14%
Number of daily rates quoted 23 27 11
10th Percentile £553 £528 £425
25th Percentile £591 £575 £581
Median daily rate (50th Percentile) £625 £825 £700
Median % change year-on-year -24.24% +17.86% -12.50%
75th Percentile £647 £888 £900
90th Percentile £733 - -
England median daily rate £603 £825 £625
% change year-on-year -26.97% +32.00% -13.79%
Number of hourly rates quoted 0 0 4
10th Percentile - - £58.97
25th Percentile - - £64.45
Median hourly rate - - £72.50
75th Percentile - - £78.94
90th Percentile - - £81.53
England median hourly rate £81.00 £67.38 £83.33
% change year-on-year +20.21% -19.13% +9.64%

All Contract IT Job Vacancies
London

For comparison with the information above, the following table provides summary statistics for all contract IT job vacancies in 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 contract jobs in our overall sample.

Contract vacancies in London with a recognized job title 13,187 14,093 17,699
% of contract IT jobs with a recognized job title 92.31% 93.53% 93.54%
Number of daily rates quoted 8,735 9,130 12,805
10th Percentile £343 £335 £330
25th Percentile £425 £450 £450
Median daily rate (50th Percentile) £533 £550 £563
Median % change year-on-year -3.18% -2.22% -3.02%
75th Percentile £650 £675 £684
90th Percentile £759 £799 £788
England median daily rate £510 £525 £533
% change year-on-year -2.86% -1.50% -3.09%
Number of hourly rates quoted 228 153 211
10th Percentile £17.50 £18.47 £17.75
25th Percentile £22.38 £23.80 £21.50
Median hourly rate £29.65 £35.00 £35.00
Median % change year-on-year -15.30% - -
75th Percentile £57.13 £53.75 £58.75
90th Percentile £76.58 £80.75 £72.50
England median hourly rate £26.50 £36.00 £45.00
% change year-on-year -26.39% -20.00% +38.46%

Principal Engineer
Job Vacancy Trend in London

Historical trend showing the proportion of contract IT job postings featuring 'Principal Engineer' in the job title relative to all contract IT jobs advertised in London.

Principal Engineer job vacancy trend in London

Principal Engineer
Daily Rate Trend in London

Contractor daily rate distribution trend for Principal Engineer job vacancies in London.

Contractor daily rate distribution trend for Principal Engineer job vacancies in London

Principal Engineer
Daily Rate Histogram in London

Daily rate distribution for jobs citing Principal Engineer in London over the 6 months to 18 December 2025.

Daily rate histogram for Principal Engineer in London

Principal Engineer
Hourly Rate Trend in London

Contractor hourly rate distribution trend for Principal Engineer job vacancies in London.

Contractor hourly rate distribution trend for Principal Engineer job vacancies in London

Principal Engineer
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Principal Engineer within the London region over the 6 months to 18 December 2025. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Jobs
West London - 10 £625 - 6
Central London +4 3 £675 - 9
Principal Engineer
England

Principal Engineer Skill Set
Top 30 Co-Occurring Skills & Capabilities in London

For the 6 months to 18 December 2025, Principal Engineer contract job roles required the following skills and capabilities in order of popularity. The figures indicate the absolute number of co-occurrences and as a proportion of all contract job ads across the London region featuring Principal Engineer in the job title.

1 19 (52.78%) Software Engineering
2 18 (50.00%) AWS
3 17 (47.22%) CI/CD
3 17 (47.22%) Python
4 16 (44.44%) Terraform
5 12 (33.33%) GCP
5 12 (33.33%) Kafka
5 12 (33.33%) Mentoring
5 12 (33.33%) Observability
6 11 (30.56%) Analytics
6 11 (30.56%) Data Architecture
6 11 (30.56%) Data Engineering
6 11 (30.56%) Data Lake
6 11 (30.56%) Data Modelling
6 11 (30.56%) Databricks
6 11 (30.56%) DevOps
7 10 (27.78%) AI
7 10 (27.78%) Apache Spark
7 10 (27.78%) Azure
7 10 (27.78%) Data Quality
7 10 (27.78%) Infrastructure as Code
7 10 (27.78%) SQL
8 8 (22.22%) Google
9 7 (19.44%) AWS CloudFormation
9 7 (19.44%) Data Governance
9 7 (19.44%) ETL
9 7 (19.44%) Java
9 7 (19.44%) LLM
10 6 (16.67%) Agile
10 6 (16.67%) Amazon Athena

Principal Engineer Skill Set
Co-Occurring Skills & Capabilities in London by Category

The following tables expand on the one above by listing co-occurrences grouped by category. They cover the same employment type, locality and period, with up to 20 co-occurrences shown in each category:

Application Platforms
1 10 (27.78%) Apache Spark
2 6 (16.67%) Apache
3 3 (8.33%) JBoss
4 1 (2.78%) Confluence
4 1 (2.78%) Drupal
4 1 (2.78%) nginx
4 1 (2.78%) Oracle Workflow
4 1 (2.78%) SAS
4 1 (2.78%) Tomcat
4 1 (2.78%) WordPress
Business Applications
1 3 (8.33%) Temenos T24
2 1 (2.78%) SAP HCM
2 1 (2.78%) SAP HR
Cloud Services
1 18 (50.00%) AWS
2 12 (33.33%) GCP
3 10 (27.78%) Azure
4 7 (19.44%) AWS CloudFormation
5 6 (16.67%) Azure Synapse Analytics
5 6 (16.67%) Collibra
5 6 (16.67%) Power Platform
6 5 (13.89%) Amazon S3
6 5 (13.89%) Amazon SQS
7 3 (8.33%) Google Kubernetes Engine
8 2 (5.56%) Amazon ECS
8 2 (5.56%) Amazon EKS
8 2 (5.56%) Amazon GuardDuty
8 2 (5.56%) AWS Control Tower
8 2 (5.56%) AWS KMS
9 1 (2.78%) Azure Data Factory
9 1 (2.78%) GitHub
9 1 (2.78%) MinIO
9 1 (2.78%) Serverless
Database & Business Intelligence
1 11 (30.56%) Data Lake
2 6 (16.67%) Amazon Athena
2 6 (16.67%) Metadata
2 6 (16.67%) Mixpanel
2 6 (16.67%) Power BI
3 5 (13.89%) BigQuery
3 5 (13.89%) OLAP
3 5 (13.89%) OLTP
4 3 (8.33%) Data Warehouse
4 3 (8.33%) Oracle Database
5 2 (5.56%) PostgreSQL
6 1 (2.78%) Big Data
6 1 (2.78%) Elasticsearch
6 1 (2.78%) GIS
6 1 (2.78%) Hadoop
6 1 (2.78%) Relational Database
Development Applications
1 3 (8.33%) Jenkins
1 3 (8.33%) SonarQube
1 3 (8.33%) Sonatype Nexus
2 1 (2.78%) Git
2 1 (2.78%) JIRA
2 1 (2.78%) JUnit
General
1 8 (22.22%) Social Skills
2 5 (13.89%) Banking
3 4 (11.11%) Influencing Skills
4 3 (8.33%) Finance
5 2 (5.56%) Telecoms
6 1 (2.78%) Public Sector
Libraries, Frameworks & Software Standards
1 12 (33.33%) Kafka
2 5 (13.89%) Great Expectations
2 5 (13.89%) PySpark
3 2 (5.56%) AWS CDK
3 2 (5.56%) Elastic Stack
3 2 (5.56%) REST
3 2 (5.56%) Spring
3 2 (5.56%) Spring Boot
4 1 (2.78%) Apache NiFi
4 1 (2.78%) EJB
4 1 (2.78%) Hibernate
4 1 (2.78%) Java SE
4 1 (2.78%) JPA
4 1 (2.78%) Lightning Web Components
4 1 (2.78%) Middleware
4 1 (2.78%) OpenLayers
4 1 (2.78%) RabbitMQ
4 1 (2.78%) RESTful
4 1 (2.78%) SAP Fiori
4 1 (2.78%) SOAP
Miscellaneous
1 6 (16.67%) Cloud Native
2 3 (8.33%) AI Agents
2 3 (8.33%) Autonomous Agent
3 1 (2.78%) Algorithms
3 1 (2.78%) Data Centre
3 1 (2.78%) Digital Media
3 1 (2.78%) FPGA
3 1 (2.78%) Self-Motivation
3 1 (2.78%) SWIFT Messaging Network
3 1 (2.78%) VHDL
Operating Systems
1 4 (11.11%) Linux
2 1 (2.78%) Red Hat Enterprise Linux
2 1 (2.78%) Windows
2 1 (2.78%) Windows Server 2008
Processes & Methodologies
1 19 (52.78%) Software Engineering
2 17 (47.22%) CI/CD
3 12 (33.33%) Mentoring
3 12 (33.33%) Observability
4 11 (30.56%) Analytics
4 11 (30.56%) Data Architecture
4 11 (30.56%) Data Engineering
4 11 (30.56%) Data Modelling
4 11 (30.56%) DevOps
5 10 (27.78%) AI
5 10 (27.78%) Infrastructure as Code
6 7 (19.44%) Data Governance
6 7 (19.44%) ETL
6 7 (19.44%) LLM
7 6 (16.67%) Batch Processing
7 6 (16.67%) Data Analytics
7 6 (16.67%) Data Privacy
7 6 (16.67%) Machine Learning
7 6 (16.67%) Problem-Solving
7 6 (16.67%) RBAC
Programming Languages
1 17 (47.22%) Python
2 10 (27.78%) SQL
3 7 (19.44%) Java
4 6 (16.67%) C#
5 3 (8.33%) JavaScript
6 2 (5.56%) PHP
7 1 (2.78%) Apex Code
7 1 (2.78%) PL/SQL
Qualifications
1 6 (16.67%) Security Cleared
2 4 (11.11%) SC Cleared
3 1 (2.78%) DV Cleared
Quality Assurance & Compliance
1 10 (27.78%) Data Quality
2 6 (16.67%) GDPR
System Software
1 5 (13.89%) Docker
2 1 (2.78%) Firmware
Systems Management
1 16 (44.44%) Terraform
2 3 (8.33%) Kubernetes
3 2 (5.56%) Grafana
Vendors
1 11 (30.56%) Databricks
2 8 (22.22%) Google
3 5 (13.89%) Temenos
4 4 (11.11%) Oracle
5 2 (5.56%) Microsoft
6 1 (2.78%) Cloudera
6 1 (2.78%) Foundry
6 1 (2.78%) IBM
6 1 (2.78%) MuleSoft
6 1 (2.78%) Palantir
6 1 (2.78%) Red Hat
6 1 (2.78%) Salesforce
6 1 (2.78%) SAP