Period
to 30 July 2021

The following table provides summary statistics for contract job vacancies with a requirement for SOLID skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited SOLID over the 6 months to 30 July 2021 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

SOLID Principles
UK
6 months to
30 Jul 2021
Same period 2020 Same period 2019
Rank 438 391 347
Rank change year-on-year -47 -44 +25
Contract jobs citing SOLID 342 185 692
As % of all contract jobs advertised in the UK 0.47% 0.51% 0.76%
As % of the Processes & Methodologies category 0.53% 0.58% 0.86%
Number of daily rates quoted 231 144 555
10th Percentile £375 £381 £363
25th Percentile £425 £413 £406
Median daily rate (50th Percentile) £500 £475 £475
Median % change year-on-year +5.26% - -
75th Percentile £588 £550 £550
90th Percentile £638 £600 £625
UK excluding London median daily rate £425 £431 £425
% change year-on-year -1.39% +1.41% +3.03%
Number of hourly rates quoted 10 1 7
10th Percentile £58.71 " £30.03
25th Percentile " £57.00 £33.07
Median hourly rate £60.00 £59.00 £42.00
Median % change year-on-year +1.69% +40.48% -6.67%
75th Percentile £64.44 £61.00 £55.63
90th Percentile £65.56 " £57.50
UK excluding London median hourly rate £61.00 - £40.37

SOLID is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for process or methodology skills.

All Process and Methodology Skills
UK
Contract vacancies with a requirement for process or methodology skills 64,123 31,648 80,298
As % of all contract IT jobs advertised in the UK 88.72% 86.63% 87.65%
Number of daily rates quoted 44,133 21,124 53,652
10th Percentile £313 £300 £300
25th Percentile £406 £400 £381
Median daily rate (50th Percentile) £500 £475 £475
Median % change year-on-year +5.26% - +5.56%
75th Percentile £600 £580 £575
90th Percentile £688 £675 £650
UK excluding London median daily rate £450 £450 £438
% change year-on-year - +2.86% +2.94%
Number of hourly rates quoted 1,711 915 2,205
10th Percentile £12.00 £12.42 £11.49
25th Percentile £14.58 £16.21 £14.38
Median hourly rate £23.31 £24.70 £22.50
Median % change year-on-year -5.63% +9.78% +12.50%
75th Percentile £47.25 £46.02 £45.00
90th Percentile £60.87 £55.00 £52.50
UK excluding London median hourly rate £20.65 £21.88 £22.75
% change year-on-year -5.62% -3.82% +19.74%

SOLID
Job Vacancy Trend

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

Job vacancy trend for SOLID in the UK

SOLID
Contractor Daily Rate Trend

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

Daily rate trend for SOLID in the UK

SOLID
Daily Rate Histogram

Daily rate distribution for jobs citing SOLID over the 6 months to 30 July 2021.

Daily rate histogram for SOLID in the UK

SOLID
Contractor Hourly Rate Trend

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

Hourly rate trend for SOLID in the UK

SOLID
Top 16 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing SOLID within the UK over the 6 months to 30 July 2021. 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
Job
Vacancies
England -68 271 £500 +5.26% 284
London -90 159 £525 +10.53% 101
Work from Home -174 111 £500 +6.95% 71
UK excluding London -18 109 £425 -1.39% 194
South East -21 41 £475 +22.58% 54
North of England -18 25 £480 -10.70% 68
North West -21 18 £480 +2.13% 46
Midlands -56 14 £400 -5.88% 30
East of England -14 12 £413 -17.50% 15
West Midlands -39 11 £400 -15.79% 21
Scotland -53 9 £450 +5.88% 4
Yorkshire -18 6 £488 -11.36% 19
Wales -2 4 £429 -2.56% 6
South West -11 4 £425 -2.86% 14
East Midlands -18 3 £220 -30.16% 9
North East -15 1 £450 -18.18% 3

For the 6 months to 30 July 2021, IT contractor jobs citing SOLID also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads with a requirement for SOLID.

1 207 (60.53%) Agile Software Development
2 160 (46.78%) .NET
3 149 (43.57%) C#
3 149 (43.57%) TDD
4 123 (35.96%) SQL
5 112 (32.75%) Azure
6 110 (32.16%) Java
7 108 (31.58%) OO
8 107 (31.29%) JavaScript
9 106 (30.99%) Git (software)
10 99 (28.95%) DevOps
11 97 (28.36%) Microservices
12 94 (27.49%) Software Engineering
13 93 (27.19%) Continuous Integration
14 91 (26.61%) .NET Core
15 85 (24.85%) Test Automation
16 82 (23.98%) Scrum
17 75 (21.93%) AWS
18 72 (21.05%) RESTful
19 71 (20.76%) HTML
20 68 (19.88%) Social Skills
21 67 (19.59%) MVC
22 66 (19.30%) React
23 63 (18.42%) AngularJS
23 63 (18.42%) SQL Server
24 61 (17.84%) .NET Framework
25 60 (17.54%) Docker
26 59 (17.25%) BDD
26 59 (17.25%) CSS
26 59 (17.25%) OOP

SOLID
Co-occurring IT Skills by Category

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

Application Platforms
1 12 (3.51%) CMS
2 11 (3.22%) Cloud Foundry
3 8 (2.34%) Confluence
3 8 (2.34%) Elasticsearch
4 6 (1.75%) Apache Spark
4 6 (1.75%) SharePoint
5 5 (1.46%) EPiServer
5 5 (1.46%) WordPress
6 4 (1.17%) Umbraco
7 3 (0.88%) Apache
8 2 (0.58%) Headless CMS
8 2 (0.58%) Luigi
9 1 (0.29%) Apache ServiceMix
9 1 (0.29%) IIS
9 1 (0.29%) Mule ESB
9 1 (0.29%) NServiceBus
9 1 (0.29%) Red Hat Fuse
9 1 (0.29%) Sitecore CMS
9 1 (0.29%) Tomcat
Business Applications
1 5 (1.46%) Dynamics CRM
2 1 (0.29%) Magento
2 1 (0.29%) SAP CO
2 1 (0.29%) SAP FI
2 1 (0.29%) SAP FI/CO
Cloud Services
1 112 (32.75%) Azure
2 75 (21.93%) AWS
3 36 (10.53%) Serverless
4 35 (10.23%) GCP
5 16 (4.68%) Azure Service Bus
5 16 (4.68%) SaaS
6 14 (4.09%) AWS Lambda
6 14 (4.09%) PaaS
7 12 (3.51%) IaaS
8 11 (3.22%) Azure Functions
9 8 (2.34%) Azure Cosmos DB
10 7 (2.05%) Azure Service Fabric
10 7 (2.05%) GitHub
11 4 (1.17%) Amazon S3
11 4 (1.17%) Apigee
11 4 (1.17%) Azure Event Grid
11 4 (1.17%) Azure Pipelines
12 3 (0.88%) Amazon ECS
12 3 (0.88%) AWS CloudFormation
12 3 (0.88%) Azure Stack
Communications & Networking
1 8 (2.34%) SSL
2 5 (1.46%) Unified Communications
3 3 (0.88%) SSH
4 2 (0.58%) Internet
4 2 (0.58%) Network Security
5 1 (0.29%) VoIP
Database & Business Intelligence
1 63 (18.42%) SQL Server
2 54 (15.79%) NoSQL
3 18 (5.26%) Relational Database
4 14 (4.09%) MongoDB
4 14 (4.09%) MySQL
5 13 (3.80%) PostgreSQL
6 12 (3.51%) Apache Cassandra
7 9 (2.63%) Redis
8 5 (1.46%) Amazon RDS
8 5 (1.46%) Big Data
9 4 (1.17%) Azure SQL Database
9 4 (1.17%) SQL Server 2012
9 4 (1.17%) SQLite
10 3 (0.88%) Amazon DynamoDB
10 3 (0.88%) Cloud Spanner
10 3 (0.88%) NewSQL
10 3 (0.88%) RDBMS
11 2 (0.58%) Data Lake
11 2 (0.58%) Power BI
11 2 (0.58%) SQL Server 2016
Development Applications
1 106 (30.99%) Git (software)
2 40 (11.70%) Jenkins
3 27 (7.89%) Selenium
4 24 (7.02%) JIRA
5 23 (6.73%) Gradle
6 22 (6.43%) Visual Studio
7 21 (6.14%) Maven
8 15 (4.39%) NUnit
9 14 (4.09%) GitLab
10 11 (3.22%) IntelliJ
10 11 (3.22%) SpecFlow
11 10 (2.92%) CircleCI
11 10 (2.92%) Octopus Deploy
11 10 (2.92%) webpack
12 9 (2.63%) Cypress.io
12 9 (2.63%) Mockito
12 9 (2.63%) MSTest
12 9 (2.63%) TeamCity
12 9 (2.63%) Visual Studio Team System
13 8 (2.34%) JUnit
General
1 68 (19.88%) Social Skills
2 41 (11.99%) Finance
3 21 (6.14%) Banking
4 11 (3.22%) Presentation Skills
5 10 (2.92%) Analytical Skills
5 10 (2.92%) Retail Banking
6 9 (2.63%) Retail
7 8 (2.34%) Documentation Skills
7 8 (2.34%) Law
7 8 (2.34%) Manufacturing
8 6 (1.75%) Back Office
8 6 (1.75%) Games
9 5 (1.46%) Investment Banking
9 5 (1.46%) Telecoms
10 4 (1.17%) Corporate Banking
10 4 (1.17%) Private Banking
11 3 (0.88%) Automotive
11 3 (0.88%) French Language
11 3 (0.88%) Front Office
12 2 (0.58%) Marketing
Job Titles
1 264 (77.19%) Developer
2 82 (23.98%) .NET Developer
3 47 (13.74%) Java Developer
4 39 (11.40%) Full Stack Developer
5 32 (9.36%) C# Developer
6 29 (8.48%) Senior Developer
6 29 (8.48%) Software Engineer
7 24 (7.02%) Android Developer
8 22 (6.43%) Java Engineer
9 21 (6.14%) C# .NET Developer
10 18 (5.26%) Azure Developer
11 15 (4.39%) Backend Developer
11 15 (4.39%) Test Automation Engineer
11 15 (4.39%) Test Engineer
12 13 (3.80%) Lead Developer
13 12 (3.51%) JavaScript Developer
14 11 (3.22%) Front End Developer (Client-Side Developer)
14 11 (3.22%) React Developer
15 10 (2.92%) iOS Developer
16 9 (2.63%) PHP Developer
Libraries, Frameworks & Software Standards
1 160 (46.78%) .NET
2 91 (26.61%) .NET Core
3 72 (21.05%) RESTful
4 71 (20.76%) HTML
5 66 (19.30%) React
6 63 (18.42%) AngularJS
7 61 (17.84%) .NET Framework
8 59 (17.25%) CSS
9 53 (15.50%) Web Services
10 48 (14.04%) ASP.NET
11 45 (13.16%) Entity Framework
12 44 (12.87%) ASP.NET Web API
13 41 (11.99%) REST
14 40 (11.70%) JSON
15 39 (11.40%) Spring
16 37 (10.82%) Node.js
17 28 (8.19%) HTML5
17 28 (8.19%) XML
18 27 (7.89%) Spring Boot
19 26 (7.60%) jQuery
Miscellaneous
1 34 (9.94%) User Experience
2 29 (8.48%) Mobile App
3 16 (4.68%) Cloud Native
3 16 (4.68%) Greenfield Project
4 11 (3.22%) Enterprise Software
5 10 (2.92%) Legacy Applications
6 7 (2.05%) Data Structures
7 6 (1.75%) Data Protection Act
7 6 (1.75%) Reference Data
8 5 (1.46%) Legacy Code
8 5 (1.46%) Public Cloud
8 5 (1.46%) VLE
9 4 (1.17%) iPad
9 4 (1.17%) iPhone
9 4 (1.17%) Mobile Banking
9 4 (1.17%) Online Banking
9 4 (1.17%) Self-Motivation
9 4 (1.17%) Video\Live Streaming
10 3 (0.88%) Online Games
10 3 (0.88%) Virtual Team
Operating Systems
1 33 (9.65%) Android
2 16 (4.68%) Apple iOS
3 15 (4.39%) Windows
4 13 (3.80%) Linux
5 11 (3.22%) Unix
6 1 (0.29%) Ubuntu
Processes & Methodologies
1 207 (60.53%) Agile Software Development
2 149 (43.57%) TDD
3 108 (31.58%) OO
4 99 (28.95%) DevOps
5 97 (28.36%) Microservices
6 94 (27.49%) Software Engineering
7 93 (27.19%) Continuous Integration
8 85 (24.85%) Test Automation
9 82 (23.98%) Scrum
10 67 (19.59%) MVC
11 59 (17.25%) BDD
11 59 (17.25%) OOP
12 49 (14.33%) Full Stack Development
13 46 (13.45%) Problem-Solving
14 45 (13.16%) Clean Code
14 45 (13.16%) Unit Testing
15 37 (10.82%) Domain-Driven Design
16 35 (10.23%) Front End Development
17 33 (9.65%) E-Commerce
18 32 (9.36%) Pair Programming
Programming Languages
1 149 (43.57%) C#
2 123 (35.96%) SQL
3 110 (32.16%) Java
4 107 (31.29%) JavaScript
5 37 (10.82%) TypeScript
6 28 (8.19%) Kotlin
7 27 (7.89%) Python
8 19 (5.56%) Go
9 16 (4.68%) PHP
10 15 (4.39%) T-SQL
11 14 (4.09%) Shell Script
12 13 (3.80%) Java 8
13 10 (2.92%) Apple Swift
14 9 (2.63%) Scala
15 7 (2.05%) VBA
16 5 (1.46%) Bash Shell
16 5 (1.46%) Ruby
17 3 (0.88%) C++
17 3 (0.88%) Groovy
17 3 (0.88%) PowerShell
Qualifications
1 24 (7.02%) Degree
2 8 (2.34%) Numerate Degree
3 7 (2.05%) Computer Science Degree
4 5 (1.46%) DBS Check
5 1 (0.29%) BPSS Clearance
5 1 (0.29%) SC Cleared
5 1 (0.29%) Security Cleared
Quality Assurance & Compliance
1 12 (3.51%) QA
2 6 (1.75%) WCAG
3 1 (0.29%) Accessibility
3 1 (0.29%) Disclosure Scotland
3 1 (0.29%) EMIR
3 1 (0.29%) GDPR
3 1 (0.29%) HL7
3 1 (0.29%) MiFID
System Software
1 60 (17.54%) Docker
2 1 (0.29%) Active Directory
Systems Management
1 53 (15.50%) Kubernetes
2 17 (4.97%) Terraform
3 9 (2.63%) Istio
4 6 (1.75%) Grafana
4 6 (1.75%) Prometheus
5 2 (0.58%) Ansible
6 1 (0.29%) Mesos
6 1 (0.29%) Rancher
Vendors
1 51 (14.91%) Microsoft
2 21 (6.14%) Google
3 18 (5.26%) Oracle
4 13 (3.80%) Telerik
5 12 (3.51%) CA Agile Central
6 11 (3.22%) CA
7 8 (2.34%) ESRI
8 6 (1.75%) QAD
8 6 (1.75%) Refinitiv
9 5 (1.46%) Blackboard
10 4 (1.17%) Salesforce.com
10 4 (1.17%) Xamarin
10 4 (1.17%) Zend
11 3 (0.88%) Apple
11 3 (0.88%) hybris
11 3 (0.88%) Perforce
11 3 (0.88%) Sitecore
12 2 (0.58%) Cadence
12 2 (0.58%) New Relic
12 2 (0.58%) Splunk