Period
to 16 December 2017

The following table provides summary statistics for contract job vacancies advertised in London 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 16 December 2017 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
England > London
6 months to
16 Dec 2017
Same period 2016 Same period 2015
Rank 285 408 409
Rank change year-on-year +123 +1 +44
Contract jobs citing SOLID 421 203 210
As % of all contract IT jobs advertised in London 0.89% 0.46% 0.45%
As % of the Processes & Methodologies category 1.03% 0.53% 0.54%
Number of daily rates quoted 369 163 176
London median daily rate £488 £450 £475
Median daily rate % change year-on-year +8.33% -5.26% +14.18%
10th Percentile £404 £325 £356
90th Percentile £603 £577 £563
England median daily rate £450 £413 £425
% change year-on-year +9.09% -2.94% +6.25%
Number of hourly rates quoted 0 1 0
London median hourly rate - £55.00 -
England median hourly rate £45.00 £42.50 £43.75
% change year-on-year +5.88% -2.86% -45.31%

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 advertised in London with a requirement for process or methodology skills.

All Process and Methodology Skills
London
Contract vacancies with a requirement for process or methodology skills 40979 38352 39009
As % of all contract IT jobs advertised in London 86.80% 86.25% 84.33%
Number of daily rates quoted 29855 27447 27851
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +2.27%
10th Percentile £313 £308 £288
90th Percentile £675 £650 £638
England median daily rate £450 £430 £425
% change year-on-year +4.65% +1.18% +6.25%
Number of hourly rates quoted 377 420 466
London median hourly rate £22.50 £22.50 £20.00
Median hourly rate % change year-on-year - +12.50% +11.11%
10th Percentile £13.28 £12.15 £11.25
90th Percentile £52.28 £50.00 £50.00
England median hourly rate £25.00 £24.47 £22.00
% change year-on-year +2.17% +11.23% +15.79%

SOLID
Job Vacancy Trend in London

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

Job vacancy trend for SOLID in London

SOLID
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for SOLID in London

SOLID
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing SOLID in London over the 6 months to 16 December 2017.

Contractor daily rate histogram 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 16 December 2017. 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
Central London +26 88 £500 +11.48% 13
West London +7 34 £493 +29.61% 11
South London -29 2 £475 - 2
North London - 1 £325 -
SOLID
England

For the 6 months to 16 December 2017, IT contractor jobs citing SOLID also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the London region with a requirement for SOLID.

1 297 (70.55%) TDD
2 283 (67.22%) Agile Software Development
3 279 (66.27%) .NET
4 262 (62.23%) C#
5 172 (40.86%) JavaScript
6 159 (37.77%) MVC
7 157 (37.29%) Continuous Integration
8 151 (35.87%) Scrum
9 148 (35.15%) ASP.NET
10 143 (33.97%) AngularJS
11 141 (33.49%) OO
12 139 (33.02%) ASP.NET Web API
13 126 (29.93%) BDD
14 125 (29.69%) React
15 123 (29.22%) HTML
16 121 (28.74%) Software Engineering
17 120 (28.50%) RESTful
18 112 (26.60%) Microsoft Azure
19 101 (23.99%) TeamCity
20 100 (23.75%) Domain-Driven Design
20 100 (23.75%) SQL Server
21 98 (23.28%) Git (software)
22 91 (21.62%) Finance
23 87 (20.67%) SQL
24 84 (19.95%) Test Automation
24 84 (19.95%) HTML5
25 82 (19.48%) REST
26 80 (19.00%) NoSQL
26 80 (19.00%) Microservices
27 79 (18.76%) SOA

SOLID
Co-occurring IT Skills in London 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 35 (8.31%) CMS
2 27 (6.41%) Elasticsearch
3 15 (3.56%) EPiServer
4 14 (3.33%) NServiceBus
5 12 (2.85%) SharePoint
6 10 (2.38%) IIS
7 4 (0.95%) Oracle SOA Suite
8 3 (0.71%) Confluence
8 3 (0.71%) Tomcat
9 2 (0.48%) Apache Spark
9 2 (0.48%) Cloud Foundry
9 2 (0.48%) MQSeries
9 2 (0.48%) Mule
9 2 (0.48%) Sitecore CMS
9 2 (0.48%) WebSphere
10 1 (0.24%) Adobe Experience Manager
10 1 (0.24%) Apache
10 1 (0.24%) Apache Solr
10 1 (0.24%) BizTalk Server
Applications
1 3 (0.71%) Microsoft Office
1 3 (0.71%) MS Visio
Business Applications
1 8 (1.90%) Dynamics CRM
Cloud Services
1 112 (26.60%) Microsoft Azure
2 64 (15.20%) Amazon AWS
3 22 (5.23%) GitHub
4 19 (4.51%) npm
5 15 (3.56%) Yarn
6 10 (2.38%) Serverless
7 5 (1.19%) Google Play
7 5 (1.19%) Office 365
8 4 (0.95%) Cloud Computing
8 4 (0.95%) SaaS
9 3 (0.71%) Algolia
9 3 (0.71%) Amazon EMR
9 3 (0.71%) Dynamics 365
10 1 (0.24%) Amazon SQS
10 1 (0.24%) Google Analytics
10 1 (0.24%) Google Cloud Platform
10 1 (0.24%) PaaS
Communications & Networking
1 6 (1.43%) Internet
2 5 (1.19%) HTTP
3 4 (0.95%) SSL
4 3 (0.71%) SMS
5 2 (0.48%) DNS
Database & Business Intelligence
1 100 (23.75%) SQL Server
2 80 (19.00%) NoSQL
3 55 (13.06%) MongoDB
4 30 (7.13%) RavenDB
5 23 (5.46%) SQL Server 2008
6 20 (4.75%) SQL Server 2005
7 16 (3.80%) DocumentDB
8 12 (2.85%) SQL Server 2014
9 10 (2.38%) MySQL
9 10 (2.38%) Neo4j
9 10 (2.38%) SQL Server 2012
10 9 (2.14%) Relational Database
11 6 (1.43%) Data Warehouse
11 6 (1.43%) Hadoop
11 6 (1.43%) SQL Server Integration Services
12 5 (1.19%) Azure SQL Database
12 5 (1.19%) SQL Server Reporting Services
13 4 (0.95%) Apache Cassandra
14 3 (0.71%) Redis
14 3 (0.71%) SQL Server Analysis Services
Development Applications
1 101 (23.99%) TeamCity
2 98 (23.28%) Git (software)
3 60 (14.25%) Octopus Deploy
4 43 (10.21%) Jenkins
5 37 (8.79%) NUnit
6 28 (6.65%) SpecFlow
7 25 (5.94%) Team Foundation Server
8 24 (5.70%) Maven
9 22 (5.23%) Mocha
10 20 (4.75%) gulp
10 20 (4.75%) Hudson
10 20 (4.75%) IntelliJ
10 20 (4.75%) Visual Studio
10 20 (4.75%) Xcode
11 18 (4.28%) Jasmine
11 18 (4.28%) Karma Test Runner
12 17 (4.04%) JUnit
12 17 (4.04%) Subversion
13 16 (3.80%) Grunt
13 16 (3.80%) JIRA
General
1 91 (21.62%) Finance
2 62 (14.73%) Banking
3 19 (4.51%) Publishing
4 16 (3.80%) Front Office
5 13 (3.09%) Investment Banking
5 13 (3.09%) Marketing
6 7 (1.66%) Financial Institution
6 7 (1.66%) Games
6 7 (1.66%) Law
7 5 (1.19%) Advertising
8 4 (0.95%) Automotive
9 3 (0.71%) Electronics
9 3 (0.71%) Retail
10 2 (0.48%) Back Office
10 2 (0.48%) Digital Economy
10 2 (0.48%) Legal
10 2 (0.48%) Prime Brokerage
10 2 (0.48%) Retail Banking
Job Titles
1 383 (90.97%) Developer
2 151 (35.87%) .NET Developer
3 128 (30.40%) C# Developer
4 66 (15.68%) C# .NET Developer
5 60 (14.25%) Senior Developer
6 50 (11.88%) Java Developer
7 44 (10.45%) Angular Developer
8 36 (8.55%) Agile Developer
9 31 (7.36%) SQL Developer
10 27 (6.41%) Full Stack Developer
11 25 (5.94%) Senior C# Developer
12 23 (5.46%) Agile C# Developer
12 23 (5.46%) JavaScript Developer
13 21 (4.99%) iOS Developer
14 20 (4.75%) Senior .NET Developer
15 19 (4.51%) SQL Server Developer
16 15 (3.56%) ASP.NET MVC Developer
16 15 (3.56%) Azure Developer
16 15 (3.56%) NoSQL Developer
17 14 (3.33%) EPiServer Developer
Libraries, Frameworks & Software Standards
1 279 (66.27%) .NET
2 148 (35.15%) ASP.NET
3 143 (33.97%) AngularJS
4 139 (33.02%) ASP.NET Web API
5 125 (29.69%) React
6 123 (29.22%) HTML
7 120 (28.50%) RESTful
8 84 (19.95%) HTML5
9 82 (19.48%) REST
10 75 (17.81%) CSS
11 71 (16.86%) Web Services
12 64 (15.20%) .NET Framework
12 64 (15.20%) ASP.NET MVC
13 59 (14.01%) Entity Framework
14 41 (9.74%) WCF
15 38 (9.03%) Node.js
16 37 (8.79%) Spring
17 30 (7.13%) jQuery
18 26 (6.18%) ASP.NET Core
19 25 (5.94%) Spring Boot
Miscellaneous
1 49 (11.64%) Greenfield Project
2 48 (11.40%) User Experience
3 32 (7.60%) Fintech
4 25 (5.94%) Foreign Exchange (FX)
5 20 (4.75%) Mobile App
6 17 (4.04%) Online Banking
7 16 (3.80%) iPhone
8 15 (3.56%) Computer Science
9 14 (3.33%) iPad
10 10 (2.38%) Hedge funds
11 6 (1.43%) Fixed Income
12 5 (1.19%) Analytical Skills
12 5 (1.19%) Linux Command Line
13 3 (0.71%) Data Structures
13 3 (0.71%) Derivative
13 3 (0.71%) Enterprise Software
13 3 (0.71%) Equities
13 3 (0.71%) Management Information System
14 2 (0.48%) Grid Computing
14 2 (0.48%) N-Tier
Operating Systems
1 42 (9.98%) Windows
2 33 (7.84%) Apple iOS
3 19 (4.51%) Android
4 17 (4.04%) Linux
5 4 (0.95%) CentOS
5 4 (0.95%) Unix
6 2 (0.48%) Windows Server
7 1 (0.24%) Windows Server 2008
Processes & Methodologies
1 297 (70.55%) TDD
2 283 (67.22%) Agile Software Development
3 159 (37.77%) MVC
4 157 (37.29%) Continuous Integration
5 151 (35.87%) Scrum
6 141 (33.49%) OO
7 126 (29.93%) BDD
8 121 (28.74%) Software Engineering
9 100 (23.75%) Domain-Driven Design
10 84 (19.95%) Test Automation
11 80 (19.00%) Microservices
12 79 (18.76%) SOA
13 73 (17.34%) Unit Testing
14 63 (14.96%) Pair Programming
15 49 (11.64%) DevOps
15 49 (11.64%) Web Development
16 48 (11.40%) CQRS
17 47 (11.16%) Front End Development
18 35 (8.31%) Don't repeat yourself (DRY)
18 35 (8.31%) Kanban
Programming Languages
1 262 (62.23%) C#
2 172 (40.86%) JavaScript
3 87 (20.67%) SQL
4 77 (18.29%) Java
5 28 (6.65%) PowerShell
6 24 (5.70%) Objective-C
7 23 (5.46%) TypeScript
8 19 (4.51%) Apple Swift
9 18 (4.28%) Python
10 17 (4.04%) Scala
11 16 (3.80%) ES6
11 16 (3.80%) Groovy
12 15 (3.56%) T-SQL
13 12 (2.85%) GraphQL
14 9 (2.14%) PHP
15 6 (1.43%) Shell Script
15 6 (1.43%) VB.NET
16 5 (1.19%) C++
16 5 (1.19%) Kotlin
16 5 (1.19%) PL/SQL
Qualifications
1 10 (2.38%) Degree
2 7 (1.66%) Computer Science Degree
3 1 (0.24%) Microsoft Certification
3 1 (0.24%) PMP
Quality Assurance & Compliance
1 23 (5.46%) QA
2 9 (2.14%) PCI DSS
3 6 (1.43%) MiFID
4 3 (0.71%) HL7
5 2 (0.48%) WCAG
6 1 (0.24%) Data Quality
System Software
1 8 (1.90%) Active Directory
2 5 (1.19%) Docker
Systems Management
1 17 (4.04%) Puppet
2 16 (3.80%) Opscode Chef
3 15 (3.56%) Ansible
4 8 (1.90%) Nagios
4 8 (1.90%) ZABBIX
5 5 (1.19%) Control-M
6 1 (0.24%) Business Desktop Deployment
6 1 (0.24%) Kubernetes
Vendors
1 66 (15.68%) Microsoft
2 23 (5.46%) New Relic
3 22 (5.23%) Apple
4 14 (3.33%) Oracle
5 9 (2.14%) Xamarin
6 8 (1.90%) AppDynamics
6 8 (1.90%) Reuters
6 8 (1.90%) Splunk
7 7 (1.66%) FXall
7 7 (1.66%) Google
8 6 (1.43%) Apigee
9 4 (0.95%) IBM
10 3 (0.71%) CA Agile Central
10 3 (0.71%) Charles River
10 3 (0.71%) Cypress Semiconductor
10 3 (0.71%) Facebook
10 3 (0.71%) Sitecore
10 3 (0.71%) Solace
10 3 (0.71%) Telerik
11 2 (0.48%) Fiserv