SOLID Contracts in London

SOLID Principles
England > London

The table below provides summary statistics for contract job vacancies advertised in London requiring SOLID skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited SOLID over the 6 months leading up to 1 May 2025, comparing them to the same period in the previous two years.

6 months to
1 May 2025
Same period 2024 Same period 2023
Rank 266 330 408
Rank change year-on-year +64 +78 -34
Contract jobs citing SOLID 87 61 85
As % of all contract jobs advertised in London 0.69% 0.34% 0.31%
As % of the Processes & Methodologies category 0.75% 0.39% 0.35%
Number of daily rates quoted 68 51 56
10th Percentile £504 £400 £481
25th Percentile £563 £464 £512
Median daily rate (50th Percentile) £600 £575 £588
Median % change year-on-year +4.35% -2.13% -2.08%
75th Percentile £691 £675 £703
90th Percentile £729 £725 £844
England median daily rate £585 £500 £550
% change year-on-year +17.00% -9.09% +2.33%
Number of hourly rates quoted 0 0 2
Median hourly rate - - £90.00
England median hourly rate - - £90.00
% change year-on-year - - +44.81%

All Process and Methodology Skills
London

SOLID falls under the Processes and Methodologies category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring process or methodology skills in London.

Contract vacancies with a requirement for process or methodology skills 11,564 15,790 24,631
As % of all contract IT jobs advertised in London 92.16% 88.55% 91.11%
Number of daily rates quoted 7,847 11,316 17,711
10th Percentile £350 £338 £375
25th Percentile £440 £450 £475
Median daily rate (50th Percentile) £550 £550 £590
Median % change year-on-year - -6.78% +2.61%
75th Percentile £688 £675 £700
90th Percentile £813 £800 £800
England median daily rate £525 £525 £550
% change year-on-year - -4.55% +2.33%
Number of hourly rates quoted 166 324 278
10th Percentile £16.17 £16.00 £18.59
25th Percentile £22.68 £20.00 £22.53
Median hourly rate £31.67 £29.50 £38.13
Median % change year-on-year +7.36% -22.62% +5.90%
75th Percentile £50.75 £47.56 £62.64
90th Percentile £63.75 £65.93 £76.78
England median hourly rate £29.07 £36.00 £37.50
% change year-on-year -19.25% -4.00% +53.06%

SOLID
Job Vacancy Trend in London

Job postings citing SOLID as a proportion of all IT jobs advertised in London.

Job vacancy trend for SOLID in London

SOLID
Contractor Daily Rate Trend in London

3-month moving average daily rate quoted in jobs citing SOLID in London.

Daily rate trend for SOLID in London

SOLID
Daily Rate Histogram in London

Daily rate distribution for jobs citing SOLID in London over the 6 months to 1 May 2025.

Daily rate histogram for SOLID in London

SOLID
Contractor Hourly Rate Trend in London

3-month moving average hourly rates quoted in jobs citing SOLID in London.

Hourly rate trend for SOLID in London

SOLID
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 SOLID within the London region over the 6 months to 1 May 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
Central London +33 36 £585 +21.24% 5
SOLID
England

SOLID
Co-occurring Skills and Capabilities in 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 2 (2.30%) Confluence
2 1 (1.15%) Alfresco
2 1 (1.15%) Anypoint
2 1 (1.15%) Camunda
2 1 (1.15%) CMS
Business Applications
1 2 (2.30%) Aladdin
Cloud Services
1 51 (58.62%) AWS
2 24 (27.59%) Azure
3 12 (13.79%) Amazon EC2
3 12 (13.79%) Amazon EKS
3 12 (13.79%) Amazon ElastiCache
3 12 (13.79%) Amazon S3
3 12 (13.79%) Azure DevOps
3 12 (13.79%) CloudFront
3 12 (13.79%) Route 53
4 6 (6.90%) GCP
4 6 (6.90%) GitHub
5 5 (5.75%) GitHub Actions
6 4 (4.60%) Azure Service Bus
6 4 (4.60%) Sentry
7 3 (3.45%) Google Kubernetes Engine
7 3 (3.45%) OpenShift
8 2 (2.30%) Azure AKS
8 2 (2.30%) Azure API Management
8 2 (2.30%) Serverless
9 1 (1.15%) Azure Data Factory
Communications & Networking
1 2 (2.30%) HTTP
2 1 (1.15%) Firewall
2 1 (1.15%) VPN
Database & Business Intelligence
1 41 (47.13%) NoSQL
2 32 (36.78%) PostgreSQL
3 24 (27.59%) MongoDB
4 20 (22.99%) Redis
5 18 (20.69%) SQL Server
6 12 (13.79%) Amazon Aurora
6 12 (13.79%) DocumentDB
7 8 (9.20%) MySQL
7 8 (9.20%) Relational Database
8 3 (3.45%) Azure SQL Database
9 2 (2.30%) CockroachDB
9 2 (2.30%) OLTP
Development Applications
1 12 (13.79%) Jenkins
2 10 (11.49%) Git
3 8 (9.20%) JUnit
4 6 (6.90%) Maven
5 5 (5.75%) Gradle
6 4 (4.60%) CircleCI
7 3 (3.45%) Eclipse
7 3 (3.45%) IntelliJ
7 3 (3.45%) Mockito
7 3 (3.45%) TeamCity
7 3 (3.45%) TestNG
8 2 (2.30%) Cypress.io
8 2 (2.30%) Postman
8 2 (2.30%) SonarQube
9 1 (1.15%) Gatling
9 1 (1.15%) GitLab
9 1 (1.15%) Hamcrest
9 1 (1.15%) Serenity BDD
9 1 (1.15%) Spock
9 1 (1.15%) Visual Studio Code
General
1 25 (28.74%) Public Sector
2 24 (27.59%) Finance
3 19 (21.84%) Social Skills
4 16 (18.39%) Banking
5 12 (13.79%) Retail Banking
6 4 (4.60%) Influencing Skills
7 2 (2.30%) Electronics
7 2 (2.30%) Inclusion and Diversity
7 2 (2.30%) Manufacturing
7 2 (2.30%) Marketing
7 2 (2.30%) Telecoms
8 1 (1.15%) Analytical Skills
8 1 (1.15%) Aviation
8 1 (1.15%) Games
8 1 (1.15%) Investment Banking
8 1 (1.15%) Retail
Job Titles
1 63 (72.41%) Developer
2 22 (25.29%) Java Developer
3 16 (18.39%) SC Cleared Java Developer
4 13 (14.94%) Senior
5 11 (12.64%) C# Developer
5 11 (12.64%) Senior Developer
6 10 (11.49%) Full-Stack Developer
6 10 (11.49%) Lead
6 10 (11.49%) Python Developer
7 8 (9.20%) Lead Developer
8 6 (6.90%) .NET Developer
9 5 (5.75%) Senior .NET Developer
10 4 (4.60%) Architect
10 4 (4.60%) C# .NET Developer
10 4 (4.60%) Lead .NET Developer
10 4 (4.60%) Lead C# Developer
10 4 (4.60%) Senior C# .NET Developer
10 4 (4.60%) Senior C# Developer
11 3 (3.45%) Django Developer
11 3 (3.45%) Platform Architect
Libraries, Frameworks & Software Standards
1 32 (36.78%) React
2 28 (32.18%) RESTful
2 28 (32.18%) Spring
2 28 (32.18%) Spring Boot
3 24 (27.59%) Kafka
4 23 (26.44%) .NET
5 22 (25.29%) GraphQL
6 18 (20.69%) REST
7 16 (18.39%) HTML
8 15 (17.24%) Node.js
9 11 (12.64%) AngularJS
9 11 (12.64%) CSS
10 10 (11.49%) .NET Core
11 9 (10.34%) Hibernate
11 9 (10.34%) Vue
12 8 (9.20%) Express.js
12 8 (9.20%) Web Services
13 7 (8.05%) Django
14 6 (6.90%) ASP.NET
15 5 (5.75%) SOAP
Miscellaneous
1 13 (14.94%) Derivative
2 6 (6.90%) Legacy Systems
2 6 (6.90%) Public Cloud
3 5 (5.75%) Distributed Systems
3 5 (5.75%) PKI
3 5 (5.75%) Product Ownership
4 4 (4.60%) Cloud Native
5 3 (3.45%) Distributed Applications
6 2 (2.30%) Fixed Income
6 2 (2.30%) Legacy Code
7 1 (1.15%) Linux Command Line
7 1 (1.15%) Management Information System
7 1 (1.15%) N-Tier
7 1 (1.15%) Sports Betting
7 1 (1.15%) Virtual Team
Operating Systems
1 1 (1.15%) Apple iOS
1 1 (1.15%) Linux
1 1 (1.15%) Unix
1 1 (1.15%) Windows
Processes & Methodologies
1 50 (57.47%) Agile
2 41 (47.13%) DevOps
2 41 (47.13%) Microservices
3 34 (39.08%) CI/CD
4 31 (35.63%) TDD
5 27 (31.03%) Clean Code
6 21 (24.14%) Design Patterns
7 19 (21.84%) API Development
8 15 (17.24%) Continuous Integration
8 15 (17.24%) Test Automation
9 14 (16.09%) Problem-Solving
10 13 (14.94%) Full-Stack Development
10 13 (14.94%) Software Engineering
11 12 (13.79%) Asset Management
11 12 (13.79%) Unit Testing
12 11 (12.64%) Domain-Driven Design
12 11 (12.64%) Don't repeat yourself (DRY)
12 11 (12.64%) OO
13 10 (11.49%) Event-Driven
13 10 (11.49%) Mentoring
Programming Languages
1 48 (55.17%) SQL
2 40 (45.98%) C#
3 37 (42.53%) JavaScript
4 33 (37.93%) Java
5 17 (19.54%) Python
6 4 (4.60%) PowerShell
6 4 (4.60%) Scala
6 4 (4.60%) TypeScript
7 3 (3.45%) Go
8 2 (2.30%) Ruby
8 2 (2.30%) Shell Script
9 1 (1.15%) Bicep
9 1 (1.15%) Groovy
9 1 (1.15%) Kotlin
9 1 (1.15%) Objective-C
9 1 (1.15%) Swift
9 1 (1.15%) T-SQL
Qualifications
1 33 (37.93%) Security Cleared
2 32 (36.78%) SC Cleared
3 16 (18.39%) AWS Certified Developer
4 2 (2.30%) Degree
5 1 (1.15%) Numerate Degree
Quality Assurance & Compliance
1 4 (4.60%) Accessibility
2 3 (3.45%) QA
3 2 (2.30%) WCAG
System Software
1 18 (20.69%) Docker
2 1 (1.15%) Active Directory
Systems Management
1 30 (34.48%) Kubernetes
2 7 (8.05%) Grafana
3 6 (6.90%) Terraform
4 3 (3.45%) Prometheus
5 1 (1.15%) CloudHub
5 1 (1.15%) Kibana
5 1 (1.15%) Single Sign-On
Vendors
1 7 (8.05%) Microsoft
2 3 (3.45%) Google
2 3 (3.45%) Oracle
3 2 (2.30%) Murex
3 2 (2.30%) SAP
4 1 (1.15%) Apple
4 1 (1.15%) MuleSoft
4 1 (1.15%) Salesforce
4 1 (1.15%) Splunk
4 1 (1.15%) Sybase