The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Refactoring skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Refactoring over the 3 months to 24 June 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.

Refactoring
England / London
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 340 354 364
Rank change year-on-year +14 +10  
Contract jobs citing Refactoring 72 74 58
As % of all contract IT jobs advertised in London 0.35% 0.34% 0.25%
As % of the Processes & Methodologies category 0.41% 0.40% 0.30%
Number of daily rates quoted 48 59 41
Median daily rate £550 £525 £450
Median daily rate % change year-on-year +4.76% +16.66%  
90% offered a daily rate of more than £420 £400 £300
10% offered a daily rate of more than £608 £625 £550
UK excluding London median daily rate £375 £375 £400
% change year-on-year - -6.25%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £57.00 £37.50 £45.00
% change year-on-year +52.00% -16.66%  

Refactoring is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for process and methodology skills.

Contract Process & Methodology Skills
London
Contract job vacancies with a requirement for process and methodology skills 17711 18496 19220
As % of all contract IT job vacancies advertised in London 86.64% 85.33% 82.14%
Number of daily rates quoted 12688 13519 13610
Median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.55%  
90% offered a daily rate of more than £350 £325 £310
10% offered a daily rate of more than £630 £625 £625
UK excluding London median daily rate £415 £400 £380
% change year-on-year +3.75% +5.26%  
Number of hourly rates quoted 188 159 261
Median hourly rate £26.50 £21.00 £21.50
Median hourly rate % change year-on-year +26.19% -2.32%  
90% offered a hourly rate of more than £14.75 £12.50 £11.00
10% offered a hourly rate of more than £51.25 £46.00 £55.00
UK excluding London median hourly rate £34.00 £28.50 £30.00
% change year-on-year +19.29% -5.00%  

Refactoring
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing Refactoring as a proportion of all contract or permanent IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for Refactoring in London

Refactoring
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Refactoring in London

Refactoring
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Refactoring in London over the 3 months to 24 June 2017.

Contractor daily rate histogram for Refactoring in London

Refactoring
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for Refactoring in London

Refactoring
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 Refactoring within the London region over the 3 months to 24 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +7 25 £550 +11.67% 6
Westminster +5 1 £650 +44.44%
Canary Wharf - 1 £500 -
Refactoring
England

For the 6 months to 24 June 2017, IT contractor jobs citing Refactoring 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 Refactoring.

1 144 (77.01%) Agile Software Development
2 112 (59.89%) Java
3 109 (58.29%) TDD
4 102 (54.55%) Scrum
5 89 (47.59%) JavaScript
6 86 (45.99%) Git (software)
7 76 (40.64%) Continuous Integration
8 71 (37.97%) HTML
8 71 (37.97%) SQL
9 70 (37.43%) CSS
10 66 (35.29%) BDD
11 59 (31.55%) HTML5
12 57 (30.48%) Web Services
13 56 (29.95%) Kanban
13 56 (29.95%) AngularJS
14 53 (28.34%) Amazon AWS
15 52 (27.81%) SOA
16 49 (26.20%) Test Automation
17 48 (25.67%) Software Engineering
18 47 (25.13%) Linux
18 47 (25.13%) Jenkins
19 44 (23.53%) jQuery
20 41 (21.93%) MVC
21 40 (21.39%) Spring
21 40 (21.39%) Front End Development
22 39 (20.86%) Relational Database
22 39 (20.86%) Microservices
22 39 (20.86%) .NET
23 38 (20.32%) OO
23 38 (20.32%) Finance

Refactoring
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 14 (7.49%) Apache
2 12 (6.42%) OpenStack
3 11 (5.88%) WebSphere
4 10 (5.35%) CMS
4 10 (5.35%) Elasticsearch
4 10 (5.35%) Tomcat
5 9 (4.81%) Apache Spark
6 8 (4.28%) EPiServer
6 8 (4.28%) JBoss
7 7 (3.74%) Apache Solr
8 6 (3.21%) Mule
8 6 (3.21%) Oracle Workflow
9 4 (2.14%) Apache Pig
9 4 (2.14%) Sitecore CMS
10 2 (1.07%) Adobe Experience Manager
11 1 (0.53%) DataSynapse
11 1 (0.53%) GeoServer
11 1 (0.53%) Oracle SOA Suite
Business Applications
1 6 (3.21%) Endur
2 4 (2.14%) Eloqua
Cloud Services
1 53 (28.34%) Amazon AWS
2 19 (10.16%) Microsoft Azure
3 7 (3.74%) Cloud Computing
3 7 (3.74%) GitHub
4 4 (2.14%) SaaS
5 3 (1.60%) Heroku
6 2 (1.07%) AWS CloudFormation
7 1 (0.53%) Google Play
Communications & Networking
1 8 (4.28%) SSL
2 7 (3.74%) Internet
2 7 (3.74%) Network Security
3 6 (3.21%) DNS
3 6 (3.21%) HTTP
3 6 (3.21%) TCP/IP
4 4 (2.14%) SMS
5 3 (1.60%) FTP
6 2 (1.07%) BIG-IP
6 2 (1.07%) Intranet
7 1 (0.53%) Firewall
7 1 (0.53%) ICMP
Database & Business Intelligence
1 39 (20.86%) Relational Database
2 38 (20.32%) MongoDB
3 20 (10.70%) PostgreSQL
4 16 (8.56%) NoSQL
5 13 (6.95%) RDBMS
6 12 (6.42%) SQL Server
7 11 (5.88%) DB2
8 9 (4.81%) Hadoop
8 9 (4.81%) MySQL
9 8 (4.28%) Couchbase
10 7 (3.74%) Big Data
10 7 (3.74%) DataStax
11 6 (3.21%) Redis
12 4 (2.14%) Apache Hive
12 4 (2.14%) HBase
12 4 (2.14%) Sqoop
13 3 (1.60%) Hazelcast
13 3 (1.60%) MariaDB
14 2 (1.07%) SQL Server Integration Services
15 1 (0.53%) SQL Server 2008
Development Applications
1 86 (45.99%) Git (software)
2 47 (25.13%) Jenkins
3 28 (14.97%) Maven
3 28 (14.97%) TeamCity
4 25 (13.37%) gulp
5 21 (11.23%) Grunt
6 20 (10.70%) IntelliJ
7 19 (10.16%) Gradle
8 18 (9.63%) Hudson
9 16 (8.56%) JIRA
10 15 (8.02%) Ant
11 14 (7.49%) Cucumber
12 13 (6.95%) JUnit
13 11 (5.88%) Team Foundation Server
14 10 (5.35%) Mockito
14 10 (5.35%) Spock
15 9 (4.81%) Subversion
16 6 (3.21%) Selenium
16 6 (3.21%) Visual Studio
17 5 (2.67%) NUnit
General
1 38 (20.32%) Finance
2 30 (16.04%) Banking
3 15 (8.02%) Back Office
4 13 (6.95%) Investment Banking
5 5 (2.67%) Advertising
5 5 (2.67%) Marketing
6 4 (2.14%) Legal
6 4 (2.14%) Retail
6 4 (2.14%) Retail Banking
7 2 (1.07%) Billing
7 2 (1.07%) Publishing
8 1 (0.53%) Financial Institution
8 1 (0.53%) Law
Job Titles
1 140 (74.87%) Developer
2 57 (30.48%) Java Developer
3 29 (15.51%) Senior Developer
4 26 (13.90%) JavaScript Developer
5 24 (12.83%) .NET Developer
5 24 (12.83%) C# Developer
6 21 (11.23%) Architect
7 19 (10.16%) Agile Developer
8 18 (9.63%) C# .NET Developer
9 16 (8.56%) Front End Developer (Client-Side Developer)
10 13 (6.95%) Full Stack Developer
10 13 (6.95%) Senior Java Developer
11 12 (6.42%) Analyst
11 12 (6.42%) Perl Developer
11 12 (6.42%) Silverlight Developer
12 11 (5.88%) Analyst Developer
12 11 (5.88%) Scala Developer
13 10 (5.35%) Agile Java Developer
13 10 (5.35%) Senior .NET Developer
13 10 (5.35%) SQL Developer
Libraries, Frameworks & Software Standards
1 71 (37.97%) HTML
2 70 (37.43%) CSS
3 59 (31.55%) HTML5
4 57 (30.48%) Web Services
5 56 (29.95%) AngularJS
6 44 (23.53%) jQuery
7 40 (21.39%) Spring
8 39 (20.86%) .NET
9 37 (19.79%) SOAP
10 34 (18.18%) CSS3
10 34 (18.18%) XML
11 33 (17.65%) REST
12 26 (13.90%) Dropwizard
13 25 (13.37%) React
14 24 (12.83%) JSON
14 24 (12.83%) Node.js
15 23 (12.30%) Hystrix
15 23 (12.30%) Scalatra
16 22 (11.76%) Play Framework
17 19 (10.16%) NHibernate
Miscellaneous
1 23 (12.30%) User Experience
2 16 (8.56%) Computer Science
3 14 (7.49%) Fixed Income
4 13 (6.95%) Derivative
5 9 (4.81%) Distributed Denial-of-Service
6 8 (4.28%) Analytical Skills
6 8 (4.28%) Greenfield Project
7 6 (3.21%) Enterprise Software
7 6 (3.21%) Private Cloud
8 5 (2.67%) Cloud Native
8 5 (2.67%) Foreign Exchange (FX)
9 4 (2.14%) OTC Derivatives
9 4 (2.14%) Public Cloud
10 3 (1.60%) Data Structures
10 3 (1.60%) Management Information System
10 3 (1.60%) Market Risk
10 3 (1.60%) Mobile Banking
10 3 (1.60%) PKI
11 2 (1.07%) Equity Derivative
11 2 (1.07%) Fat Client
Operating Systems
1 47 (25.13%) Linux
2 29 (15.51%) Unix
3 7 (3.74%) CentOS
3 7 (3.74%) Windows
4 6 (3.21%) SUSE
5 5 (2.67%) Red Hat Enterprise Linux
6 4 (2.14%) Ubuntu
7 3 (1.60%) CoreOS
8 2 (1.07%) Apple iOS
8 2 (1.07%) Solaris
8 2 (1.07%) SUSE Linux Enterprise Server
9 1 (0.53%) Android
Processes & Methodologies
1 144 (77.01%) Agile Software Development
2 109 (58.29%) TDD
3 102 (54.55%) Scrum
4 76 (40.64%) Continuous Integration
5 66 (35.29%) BDD
6 56 (29.95%) Kanban
7 52 (27.81%) SOA
8 49 (26.20%) Test Automation
9 48 (25.67%) Software Engineering
10 41 (21.93%) MVC
11 40 (21.39%) Front End Development
12 39 (20.86%) Microservices
13 38 (20.32%) OO
14 36 (19.25%) Domain-Driven Design
14 36 (19.25%) SOLID
15 35 (18.72%) SDLC
16 31 (16.58%) Web Development
17 29 (15.51%) DevOps
17 29 (15.51%) Pair Programming
18 28 (14.97%) Digital Transformation Programme
Programming Languages
1 112 (59.89%) Java
2 89 (47.59%) JavaScript
3 71 (37.97%) SQL
4 30 (16.04%) C#
4 30 (16.04%) Ruby
5 28 (14.97%) Groovy
6 23 (12.30%) Python
6 23 (12.30%) Scala
6 23 (12.30%) Shell Script
7 21 (11.23%) Perl
8 15 (8.02%) ES6
9 14 (7.49%) C
10 10 (5.35%) Korn
11 9 (4.81%) TypeScript
12 7 (3.74%) C++
13 6 (3.21%) XPath
14 4 (2.14%) Bash Shell
14 4 (2.14%) ECMAScript
15 3 (1.60%) Go
15 3 (1.60%) PowerShell
Qualifications
1 26 (13.90%) Degree
2 7 (3.74%) CISA
2 7 (3.74%) CISM
2 7 (3.74%) CISSP
3 6 (3.21%) Master's Degree
4 4 (2.14%) Computer Science Degree
5 3 (1.60%) CFA
5 3 (1.60%) RHCE
5 3 (1.60%) RHCSA
5 3 (1.60%) SC Cleared
5 3 (1.60%) Security Cleared
Quality Assurance & Compliance
1 25 (13.37%) QA
2 11 (5.88%) Dodd-Frank
2 11 (5.88%) EMIR
2 11 (5.88%) MiFID
3 8 (4.28%) FedRAMP
3 8 (4.28%) PCI DSS
4 6 (3.21%) FATCA
System Software
1 13 (6.95%) Docker
2 8 (4.28%) Apache Flume
3 4 (2.14%) HDFS
4 1 (0.53%) Apache ZooKeeper
Systems Management
1 13 (6.95%) Ansible
1 13 (6.95%) Puppet
2 9 (4.81%) Kibana
2 9 (4.81%) logstash
3 7 (3.74%) Terraform
4 6 (3.21%) Kubernetes
4 6 (3.21%) Opscode Chef
5 5 (2.67%) Graphite
6 3 (1.60%) Control-M
6 3 (1.60%) Docker Swarm
6 3 (1.60%) ITRS Geneos
7 2 (1.07%) Cacti
7 2 (1.07%) CFEngine
7 2 (1.07%) Check_MK
7 2 (1.07%) Nagios
7 2 (1.07%) Rundeck
7 2 (1.07%) ZABBIX
8 1 (0.53%) Chronos
8 1 (0.53%) Marathon
8 1 (0.53%) Mesos
Vendors
1 28 (14.97%) Oracle
2 25 (13.37%) New Relic
3 12 (6.42%) Solace
4 11 (5.88%) Cloudera
4 11 (5.88%) Perforce
5 8 (4.28%) IBM
6 7 (3.74%) Microsoft
7 6 (3.21%) OpenLink
8 5 (2.67%) Ab Initio
8 5 (2.67%) Informatica
9 4 (2.14%) Apigee
9 4 (2.14%) Marketo
9 4 (2.14%) MuleSoft
9 4 (2.14%) Sitecore
9 4 (2.14%) VMware
10 3 (1.60%) Bloomberg
10 3 (1.60%) ForgeRock
10 3 (1.60%) Mercator
10 3 (1.60%) Red Hat
10 3 (1.60%) TIBCO
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