Period
to 22 July 2018

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 22 July 2018 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
22 Jul 2018
Same period 2017 Same period 2016
Rank 358 378 550
Rank change year-on-year +20 +172 -58
Contract jobs citing SOLID 725 626 362
As % of all contract IT jobs advertised in the UK 0.70% 0.65% 0.33%
As % of the Processes & Methodologies category 0.82% 0.77% 0.39%
Number of daily rates quoted 573 464 289
UK median daily rate £475 £450 £450
Median daily rate % change year-on-year +5.56% - +20.00%
10th Percentile £340 £318 £325
90th Percentile £625 £600 £557
UK excluding London median daily rate £400 £375 £400
% change year-on-year +6.67% -6.25% +14.29%
Number of hourly rates quoted 7 17 2
UK median hourly rate £45.00 £50.00 £42.50
Median hourly rate % change year-on-year -10.00% +17.65% -
10th Percentile £42.50 £42.50 £38.25
90th Percentile £48.75 £61.80 £44.75
UK excluding London median hourly rate £45.00 £50.00 £42.50
% change year-on-year -10.00% +17.65% -

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 88,579 81,472 92,785
As % of all contract IT jobs advertised in the UK 85.73% 84.93% 84.31%
Number of daily rates quoted 58,435 53,324 61,119
UK median daily rate £450 £450 £425
Median daily rate % change year-on-year +0.11% +5.76% +6.25%
10th Percentile £300 £275 £263
90th Percentile £638 £625 £600
UK excluding London median daily rate £425 £400 £400
% change year-on-year +6.25% - +6.67%
Number of hourly rates quoted 2,441 2,132 2,266
UK median hourly rate £22.00 £25.00 £24.00
Median hourly rate % change year-on-year -12.00% +4.17% +11.63%
10th Percentile £11.17 £11.50 £11.50
90th Percentile £50.25 £52.49 £48.75
UK excluding London median hourly rate £21.00 £25.00 £25.00
% change year-on-year -16.00% - +16.01%

SOLID
Job Vacancy Trend

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

Job vacancy trend for SOLID in the UK

SOLID
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing SOLID.

Contractor daily rate trend for SOLID in the UK

SOLID
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing SOLID over the 6 months to 22 July 2018.

Contractor daily rate histogram for SOLID in the UK

SOLID
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing SOLID.

Contractor 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 22 July 2018. 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 +2 686 £475 +5.56% 336
London +1 436 £500 +5.26% 140
UK excluding London +6 285 £400 +6.67% 209
North of England +8 79 £400 +6.67% 60
South East -48 65 £425 +6.25% 55
Midlands -11 56 £413 +22.22% 38
Yorkshire +2 43 £400 +12.28% 16
West Midlands -21 38 £450 +33.83% 23
North West -4 32 £393 +12.95% 37
South West +22 26 £327 +0.62% 16
East of England +5 23 £425 +9.68% 27
Scotland -17 23 £323 +11.98% 8
East Midlands -3 18 £340 +0.74% 15
Northern Ireland +26 8 £550 - 2
Wales -9 5 £340 -28.42% 3
North East -3 4 £363 -28.57% 7

For the 6 months to 22 July 2018, 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.

1 499 (68.83%) C#
2 498 (68.69%) Agile Software Development
3 490 (67.59%) .NET
4 452 (62.34%) TDD
5 339 (46.76%) JavaScript
6 330 (45.52%) MVC
7 314 (43.31%) ASP.NET
8 258 (35.59%) OO
9 252 (34.76%) Microsoft Azure
10 250 (34.48%) ASP.NET Web API
11 245 (33.79%) SQL Server
12 232 (32.00%) HTML
13 224 (30.90%) Microservices
14 205 (28.28%) AngularJS
15 200 (27.59%) Scrum
15 200 (27.59%) SQL
16 192 (26.48%) BDD
17 187 (25.79%) ASP.NET MVC
18 182 (25.10%) Continuous Integration
19 180 (24.83%) React
20 173 (23.86%) Git (software)
21 159 (21.93%) CSS
22 142 (19.59%) Web Services
22 142 (19.59%) SOA
23 138 (19.03%) REST
24 128 (17.66%) RESTful
25 126 (17.38%) .NET Framework
26 122 (16.83%) HTML5
27 119 (16.41%) Java
28 109 (15.03%) TeamCity

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 42 (5.79%) NServiceBus
2 32 (4.41%) Elasticsearch
3 21 (2.90%) CMS
4 20 (2.76%) Oracle SOA Suite
5 15 (2.07%) Confluence
6 13 (1.79%) IIS
7 10 (1.38%) Apache
7 10 (1.38%) Tomcat
8 8 (1.10%) Sitecore CMS
8 8 (1.10%) Umbraco
9 5 (0.69%) Apache Solr
10 4 (0.55%) EPiServer
10 4 (0.55%) JBoss
10 4 (0.55%) WebSphere
11 3 (0.41%) Adobe Experience Manager
11 3 (0.41%) OpenStack
12 2 (0.28%) Cloud Foundry
12 2 (0.28%) Oracle Workflow
13 1 (0.14%) Apache Spark
Applications
1 2 (0.28%) Adobe Illustrator
1 2 (0.28%) InVision
1 2 (0.28%) Microsoft Excel
1 2 (0.28%) MS Visio
1 2 (0.28%) Photoshop
1 2 (0.28%) Spreadsheet
2 1 (0.14%) Chatbot
Business Applications
1 6 (0.83%) Dynamics CRM
2 4 (0.55%) Payment Gateway
3 1 (0.14%) Markit EDM
3 1 (0.14%) Oracle BPM
Cloud Services
1 252 (34.76%) Microsoft Azure
2 107 (14.76%) Amazon AWS
3 39 (5.38%) Serverless
4 26 (3.59%) npm
5 15 (2.07%) Yarn
6 14 (1.93%) AWS Lambda
6 14 (1.93%) SaaS
7 11 (1.52%) Cloud Computing
8 9 (1.24%) TestFlight
9 5 (0.69%) Algolia
9 5 (0.69%) Amazon S3
9 5 (0.69%) GitHub
10 4 (0.55%) Amazon SQS
11 3 (0.41%) Amazon EC2
11 3 (0.41%) PaaS
11 3 (0.41%) Sauce Labs
12 2 (0.28%) Amazon CloudWatch
12 2 (0.28%) Amazon EMR
12 2 (0.28%) CloudFront
12 2 (0.28%) Google Cloud Platform
Communications & Networking
1 25 (3.45%) HTTP
2 7 (0.97%) MQTT
3 6 (0.83%) Internet
4 5 (0.69%) SSL
5 4 (0.55%) DNS
5 4 (0.55%) SMS
6 2 (0.28%) HTTPS
7 1 (0.14%) FTP
Database & Business Intelligence
1 245 (33.79%) SQL Server
2 69 (9.52%) NoSQL
3 40 (5.52%) MongoDB
3 40 (5.52%) Relational Database
4 26 (3.59%) SQL Server 2014
5 25 (3.45%) Apache Cassandra
6 19 (2.62%) SQL Server 2012
7 17 (2.34%) Big Data
7 17 (2.34%) Oracle Database
8 16 (2.21%) Hadoop
8 16 (2.21%) RavenDB
8 16 (2.21%) Redis
9 13 (1.79%) MySQL
10 11 (1.52%) RDBMS
11 10 (1.38%) SQL Server 2008
12 8 (1.10%) Cosmos DB
12 8 (1.10%) Neo4j
12 8 (1.10%) PostgreSQL
13 7 (0.97%) SQL Server 2005
13 7 (0.97%) SQL Server Reporting Services
Development Applications
1 173 (23.86%) Git (software)
2 109 (15.03%) TeamCity
3 72 (9.93%) Jenkins
3 72 (9.93%) NUnit
4 68 (9.38%) Octopus Deploy
5 56 (7.72%) Visual Studio
6 44 (6.07%) SpecFlow
7 42 (5.79%) JUnit
8 41 (5.66%) Selenium
9 36 (4.97%) Team Foundation Server
10 35 (4.83%) Subversion
11 30 (4.14%) JIRA
12 29 (4.00%) Maven
12 29 (4.00%) Visual Studio Team System
13 22 (3.03%) ReSharper
14 17 (2.34%) Gradle
14 17 (2.34%) gulp
15 16 (2.21%) Xcode
16 15 (2.07%) git-flow
16 15 (2.07%) Mockito
General
1 106 (14.62%) Finance
2 77 (10.62%) Banking
3 40 (5.52%) Front Office
4 25 (3.45%) Retail
5 22 (3.03%) Investment Banking
6 21 (2.90%) Legal
7 20 (2.76%) Law
8 15 (2.07%) Marketing
9 14 (1.93%) Games
10 12 (1.66%) Financial Institution
11 9 (1.24%) Back Office
12 8 (1.10%) Advertising
13 7 (0.97%) Manufacturing
14 5 (0.69%) Telecoms
15 4 (0.55%) Corporate Banking
16 2 (0.28%) Brand Awareness
16 2 (0.28%) Publishing
17 1 (0.14%) Automotive
17 1 (0.14%) Electronics
17 1 (0.14%) Retail Banking
Job Titles
1 645 (88.97%) Developer
2 337 (46.48%) .NET Developer
3 210 (28.97%) C# Developer
4 127 (17.52%) C# .NET Developer
5 86 (11.86%) Senior Developer
6 67 (9.24%) Full Stack Developer
7 62 (8.55%) ASP.NET Developer
8 61 (8.41%) Java Developer
9 56 (7.72%) Azure Developer
10 52 (7.17%) Senior .NET Developer
11 51 (7.03%) JavaScript Developer
12 41 (5.66%) Agile Developer
12 41 (5.66%) Angular Developer
12 41 (5.66%) React Developer
13 39 (5.38%) C# ASP.NET Developer
14 38 (5.24%) Software Developer
15 35 (4.83%) Agile .NET Developer
16 34 (4.69%) HTML Developer
16 34 (4.69%) SQL Developer
17 31 (4.28%) Software Engineer
Libraries, Frameworks & Software Standards
1 490 (67.59%) .NET
2 314 (43.31%) ASP.NET
3 250 (34.48%) ASP.NET Web API
4 232 (32.00%) HTML
5 205 (28.28%) AngularJS
6 187 (25.79%) ASP.NET MVC
7 180 (24.83%) React
8 159 (21.93%) CSS
9 142 (19.59%) Web Services
10 138 (19.03%) REST
11 128 (17.66%) RESTful
12 126 (17.38%) .NET Framework
13 122 (16.83%) HTML5
14 90 (12.41%) Node.js
15 78 (10.76%) .NET Core
16 76 (10.48%) Entity Framework
17 71 (9.79%) jQuery
18 67 (9.24%) Spring
19 54 (7.45%) Spring Boot
20 52 (7.17%) WCF
Miscellaneous
1 79 (10.90%) Greenfield Project
2 47 (6.48%) Computer Science
2 47 (6.48%) Enterprise Software
3 43 (5.93%) User Experience
4 41 (5.66%) Fintech
5 30 (4.14%) Mobile App
6 29 (4.00%) Self-Motivation
7 28 (3.86%) Data Structures
8 18 (2.48%) Algorithms
9 15 (2.07%) Foreign Exchange (FX)
9 15 (2.07%) Hedge funds
10 12 (1.66%) Analytical Skills
11 11 (1.52%) Fixed Income
11 11 (1.52%) iPad
12 8 (1.10%) Equities
13 6 (0.83%) Digital Wallet
13 6 (0.83%) Grid Computing
13 6 (0.83%) Internet of Things
14 5 (0.69%) Derivative
14 5 (0.69%) OTC Derivatives
Operating Systems
1 41 (5.66%) Windows
2 31 (4.28%) Linux
3 25 (3.45%) Apple iOS
4 18 (2.48%) Android
4 18 (2.48%) Unix
5 2 (0.28%) Mac OS
5 2 (0.28%) Solaris
5 2 (0.28%) Windows 7
5 2 (0.28%) Windows 8
5 2 (0.28%) Windows Server
5 2 (0.28%) Windows Server 2008
6 1 (0.14%) Nucleus RTOS
6 1 (0.14%) VMS
6 1 (0.14%) Windows Phone
Processes & Methodologies
1 498 (68.69%) Agile Software Development
2 452 (62.34%) TDD
3 330 (45.52%) MVC
4 258 (35.59%) OO
5 224 (30.90%) Microservices
6 200 (27.59%) Scrum
7 192 (26.48%) BDD
8 182 (25.10%) Continuous Integration
9 142 (19.59%) SOA
10 107 (14.76%) Software Engineering
11 105 (14.48%) Unit Testing
12 97 (13.38%) Test Automation
13 91 (12.55%) OOP
14 85 (11.72%) Web Development
15 77 (10.62%) E-Commerce
16 75 (10.34%) Kanban
17 68 (9.38%) Pair Programming
18 67 (9.24%) DevOps
19 64 (8.83%) Domain-Driven Design
20 56 (7.72%) Don't repeat yourself (DRY)
Programming Languages
1 499 (68.83%) C#
2 339 (46.76%) JavaScript
3 200 (27.59%) SQL
4 119 (16.41%) Java
5 58 (8.00%) TypeScript
6 55 (7.59%) T-SQL
7 45 (6.21%) Python
8 38 (5.24%) Java 8
9 25 (3.45%) PowerShell
10 22 (3.03%) ES6
11 18 (2.48%) Apple Swift
12 17 (2.34%) PHP
13 15 (2.07%) Objective-C
14 14 (1.93%) C++
14 14 (1.93%) Go
15 12 (1.66%) VB.NET
16 9 (1.24%) Scala
16 9 (1.24%) Shell Script
17 8 (1.10%) C
18 5 (0.69%) VB
Qualifications
1 44 (6.07%) Degree
2 19 (2.62%) Computer Science Degree
3 8 (1.10%) Security Cleared
4 7 (0.97%) Master's Degree
5 5 (0.69%) SC Cleared
6 2 (0.28%) Microsoft Certification
Quality Assurance & Compliance
1 18 (2.48%) QA
2 17 (2.34%) PCI DSS
3 5 (0.69%) HL7
4 2 (0.28%) WCAG
5 1 (0.14%) Data Quality
5 1 (0.14%) GCP
5 1 (0.14%) GDPR
5 1 (0.14%) MiFID
5 1 (0.14%) PMO
System Software
1 40 (5.52%) Docker
2 2 (0.28%) Active Directory
Systems Management
1 11 (1.52%) Opscode Chef
2 9 (1.24%) Puppet
3 8 (1.10%) Control-M
3 8 (1.10%) Kubernetes
4 4 (0.55%) Ansible
5 3 (0.41%) Grafana
6 2 (0.28%) Terraform
7 1 (0.14%) HP Quality Center
7 1 (0.14%) Prometheus
7 1 (0.14%) Rancher
7 1 (0.14%) Single Sign-On
Vendors
1 94 (12.97%) Microsoft
2 34 (4.69%) Oracle
3 26 (3.59%) Sitecore
4 13 (1.79%) Atlassian
5 11 (1.52%) Charles River
5 11 (1.52%) Google
6 10 (1.38%) FXall
6 10 (1.38%) Reuters
6 10 (1.38%) Xamarin
7 8 (1.10%) Embarcadero
7 8 (1.10%) IBM
8 7 (0.97%) CA Agile Central
9 6 (0.83%) Red Hat
10 5 (0.69%) Telerik
11 4 (0.55%) Apple
11 4 (0.55%) New Relic
12 3 (0.41%) Adobe
12 3 (0.41%) Apigee
12 3 (0.41%) AppDynamics
12 3 (0.41%) Solace