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 March 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.

3 months to
24 Mar 2017
Same period 2016 Same period 2015
Refactoring
England / London
Rank 285 354 351
Rank change year-on-year +69 -3  
Contract jobs citing Refactoring 115 74 58
As % of all contract IT jobs advertised in London 0.59% 0.34% 0.28%
As % of the Processes & Methodologies category 0.69% 0.39% 0.34%
Number of daily rates quoted 96 44 51
Median daily rate £525 £500 £550
Median daily rate % change year-on-year +5.00% -9.09%  
90% offered a daily rate of more than £394 £358 £340
10% offered a daily rate of more than £650 £600 £625
UK excluding London median daily rate £380 £375 £325
% change year-on-year +1.33% +15.38%  
Number of hourly rates quoted 0 2 0
Median hourly rate - £50.00 -
UK excluding London median hourly rate - - £71.00

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 16576 18773 17205
As % of all contract IT job vacancies advertised in London 85.15% 85.14% 82.02%
Number of daily rates quoted 11916 13556 12086
Median daily rate £480 £475 £450
Median daily rate % change year-on-year +1.05% +5.55%  
90% offered a daily rate of more than £350 £325 £310
10% offered a daily rate of more than £650 £625 £613
UK excluding London median daily rate £410 £400 £400
% change year-on-year +2.50% -  
Number of hourly rates quoted 168 193 243
Median hourly rate £31.92 £22.50 £20.31
Median hourly rate % change year-on-year +41.86% +10.78%  
90% offered a hourly rate of more than £14.20 £12.20 £11.00
10% offered a hourly rate of more than £55.00 £52.50 £55.00
UK excluding London median hourly rate £36.00 £39.00 £30.00
% change year-on-year -7.69% +30.00%  

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 March 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 hourly rates quoted in IT contractor 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 March 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 +16 21 £513 +2.50% 1
Canary Wharf - 4 £578 -
Croydon - 2 - -
Hounslow - 1 £450 -
Refactoring
England

Refactoring
Top 30 Related IT Skills in London

For the 6 months to 24 March 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.

1 172 (81.13%) Agile Software Development
2 145 (68.40%) Java
3 141 (66.51%) Scrum
4 131 (61.79%) TDD
5 103 (48.58%) JavaScript
5 103 (48.58%) Git (software)
6 96 (45.28%) BDD
7 89 (41.98%) SQL
8 78 (36.79%) Spring
9 70 (33.02%) Continuous Integration
10 69 (32.55%) Jenkins
11 68 (32.08%) HTML
11 68 (32.08%) CSS
12 65 (30.66%) AngularJS
13 64 (30.19%) Linux
14 62 (29.25%) Web Services
15 58 (27.36%) jQuery
16 55 (25.94%) SOAP
17 54 (25.47%) HTML5
18 53 (25.00%) Kanban
19 50 (23.58%) Finance
20 48 (22.64%) Unix
20 48 (22.64%) REST
21 47 (22.17%) XML
22 46 (21.70%) Maven
22 46 (21.70%) Node.js
23 45 (21.23%) Banking
24 44 (20.75%) Software Engineering
25 43 (20.28%) OO
26 42 (19.81%) TeamCity

Refactoring
Top Related 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 13 (6.13%) WebSphere
2 11 (5.19%) OpenStack
3 8 (3.77%) Apache
3 8 (3.77%) Elasticsearch
4 7 (3.30%) Apache Spark
4 7 (3.30%) JBoss
5 6 (2.83%) Mule
5 6 (2.83%) Oracle Workflow
5 6 (2.83%) Tomcat
6 3 (1.42%) Apache Solr
6 3 (1.42%) IPython
7 2 (0.94%) Apache Pig
7 2 (0.94%) Confluence
7 2 (0.94%) nginx
8 1 (0.47%) Adobe Experience Manager
8 1 (0.47%) Apache ServiceMix
8 1 (0.47%) BizTalk Server
8 1 (0.47%) CMS
8 1 (0.47%) Mule ESB
8 1 (0.47%) Oracle SOA Suite
Applications
1 11 (5.19%) MS Excel
2 1 (0.47%) MS Office
Business Applications
1 7 (3.30%) Endur
Cloud Services
1 26 (12.26%) Amazon AWS
2 10 (4.72%) GitHub
3 6 (2.83%) Microsoft Azure
4 5 (2.36%) SaaS
5 4 (1.89%) Cloud Computing
6 1 (0.47%) AWS CloudFormation
6 1 (0.47%) Google Play
Communications & Networking
1 6 (2.83%) HTTP
1 6 (2.83%) Internet
2 5 (2.36%) Network Security
3 4 (1.89%) Firewall
4 1 (0.47%) Intranet
4 1 (0.47%) SSL
Database & Business Intelligence
1 37 (17.45%) Relational Database
2 31 (14.62%) MongoDB
3 22 (10.38%) Big Data
4 16 (7.55%) PostgreSQL
5 14 (6.60%) SQL Server
6 13 (6.13%) MySQL
6 13 (6.13%) RDBMS
7 12 (5.66%) NoSQL
8 11 (5.19%) DB2
9 9 (4.25%) Redis
10 5 (2.36%) Apache Cassandra
11 4 (1.89%) Hadoop
11 4 (1.89%) Hazelcast
12 3 (1.42%) Apache Hive
12 3 (1.42%) Couchbase
12 3 (1.42%) DataStax
12 3 (1.42%) Neo4j
13 2 (0.94%) HBase
13 2 (0.94%) Impala
13 2 (0.94%) MariaDB
Development Applications
1 103 (48.58%) Git (software)
2 69 (32.55%) Jenkins
3 46 (21.70%) Maven
4 42 (19.81%) TeamCity
5 41 (19.34%) JIRA
6 38 (17.92%) JUnit
7 35 (16.51%) Mockito
8 32 (15.09%) Gradle
9 30 (14.15%) Spock
10 19 (8.96%) Cucumber
11 17 (8.02%) Hudson
12 14 (6.60%) Ant
12 14 (6.60%) Grunt
12 14 (6.60%) gulp
13 11 (5.19%) IntelliJ
14 10 (4.72%) Subversion
15 9 (4.25%) Selenium
15 9 (4.25%) Vagrant
16 7 (3.30%) NUnit
17 6 (2.83%) Team Foundation Server
General
1 50 (23.58%) Finance
2 45 (21.23%) Banking
3 15 (7.08%) Back Office
4 14 (6.60%) Investment Banking
5 11 (5.19%) Retail
6 6 (2.83%) Games
7 4 (1.89%) Legal
8 3 (1.42%) Online Betting
8 3 (1.42%) Retail Banking
8 3 (1.42%) Telecoms
9 2 (0.94%) Marketing
10 1 (0.47%) Advertising
10 1 (0.47%) Billing
10 1 (0.47%) Financial Institution
10 1 (0.47%) Publishing
Job Titles
1 161 (75.94%) Developer
2 75 (35.38%) Java Developer
3 42 (19.81%) Senior Developer
4 23 (10.85%) C# Developer
5 22 (10.38%) .NET Developer
5 22 (10.38%) Senior Java Developer
6 21 (9.91%) JavaScript Developer
7 18 (8.49%) Agile Developer
8 17 (8.02%) C# .NET Developer
9 16 (7.55%) Full Stack Developer
10 14 (6.60%) Front End Developer (Client-Side Developer)
11 12 (5.66%) DevOps Engineer
11 12 (5.66%) E-Commerce Developer
11 12 (5.66%) Scala Developer
11 12 (5.66%) Senior Agile Developer
11 12 (5.66%) Senior Front-End Developer
11 12 (5.66%) Silverlight Developer
12 11 (5.19%) Perl Developer
13 10 (4.72%) Java Engineer
13 10 (4.72%) SQL Developer
Libraries, Frameworks & Software Standards
1 78 (36.79%) Spring
2 68 (32.08%) CSS
2 68 (32.08%) HTML
3 65 (30.66%) AngularJS
4 62 (29.25%) Web Services
5 58 (27.36%) jQuery
6 55 (25.94%) SOAP
7 54 (25.47%) HTML5
8 48 (22.64%) REST
9 47 (22.17%) XML
10 46 (21.70%) Node.js
11 39 (18.40%) CSS3
12 38 (17.92%) JSON
13 34 (16.04%) .NET
13 34 (16.04%) Hibernate
14 33 (15.57%) Gherkin
14 33 (15.57%) JMS
15 25 (11.79%) JDBC
16 20 (9.43%) JSP
16 20 (9.43%) XSLT
Miscellaneous
1 28 (13.21%) User Experience
2 19 (8.96%) Computer Science
3 14 (6.60%) Foreign Exchange (FX)
4 12 (5.66%) Fixed Income
5 9 (4.25%) Derivative
6 8 (3.77%) Analytical Skills
6 8 (3.77%) Enterprise Software
7 6 (2.83%) Online Games
8 4 (1.89%) OTC Derivatives
9 3 (1.42%) Distributed Denial-of-Service
9 3 (1.42%) Life Science
9 3 (1.42%) Mobile Games
9 3 (1.42%) Private Cloud
10 2 (0.94%) Algorithms
10 2 (0.94%) Credit Risk
10 2 (0.94%) Equities
10 2 (0.94%) Fat Client
10 2 (0.94%) Management Information System
10 2 (0.94%) Smartphone
10 2 (0.94%) Thin Client
Operating Systems
1 64 (30.19%) Linux
2 48 (22.64%) Unix
3 8 (3.77%) Red Hat Enterprise Linux
4 7 (3.30%) CentOS
4 7 (3.30%) SUSE
4 7 (3.30%) Ubuntu
5 5 (2.36%) Windows
6 2 (0.94%) Android
Processes & Methodologies
1 172 (81.13%) Agile Software Development
2 141 (66.51%) Scrum
3 131 (61.79%) TDD
4 96 (45.28%) BDD
5 70 (33.02%) Continuous Integration
6 53 (25.00%) Kanban
7 44 (20.75%) Software Engineering
8 43 (20.28%) OO
9 38 (17.92%) DevOps
9 38 (17.92%) E-Commerce
9 38 (17.92%) SOA
10 33 (15.57%) MVC
11 29 (13.68%) Front End Development
12 28 (13.21%) Microservices
12 28 (13.21%) SDLC
13 27 (12.74%) Automated Testing
14 26 (12.26%) SOLID
14 26 (12.26%) Web Development
15 25 (11.79%) Continuous Improvement
16 23 (10.85%) Unit Testing
Programming Languages
1 145 (68.40%) Java
2 103 (48.58%) JavaScript
3 89 (41.98%) SQL
4 41 (19.34%) Shell Script
5 32 (15.09%) Ruby
6 30 (14.15%) Korn
7 27 (12.74%) C#
8 23 (10.85%) Python
9 20 (9.43%) Scala
10 18 (8.49%) ES6
10 18 (8.49%) XPath
11 16 (7.55%) Perl
12 15 (7.08%) C++
13 12 (5.66%) C
13 12 (5.66%) Groovy
14 9 (4.25%) TypeScript
15 8 (3.77%) Bash Shell
16 6 (2.83%) Go
16 6 (2.83%) PL/SQL
17 5 (2.36%) ECMAScript
Qualifications
1 39 (18.40%) Degree
2 3 (1.42%) CFA
2 3 (1.42%) CISA
2 3 (1.42%) CISM
2 3 (1.42%) CISSP
3 2 (0.94%) BPSS Clearance
3 2 (0.94%) SC Cleared
3 2 (0.94%) Security Cleared
Quality Assurance & Compliance
1 21 (9.91%) QA
2 20 (9.43%) FATCA
3 11 (5.19%) Dodd-Frank
3 11 (5.19%) EMIR
3 11 (5.19%) MiFID
4 3 (1.42%) FedRAMP
4 3 (1.42%) PCI DSS
4 3 (1.42%) SDET
5 2 (0.94%) Disclosure Scotland
System Software
1 19 (8.96%) Docker
2 4 (1.89%) Apache Flume
3 2 (0.94%) HDFS
3 2 (0.94%) vCloud
3 2 (0.94%) Virtual Machines
4 1 (0.47%) Apache ZooKeeper
4 1 (0.47%) Varnish
4 1 (0.47%) VMware Infrastructure
Systems Management
1 12 (5.66%) Ansible
2 11 (5.19%) Puppet
3 7 (3.30%) Kibana
3 7 (3.30%) logstash
4 4 (1.89%) ZABBIX
5 3 (1.42%) Graphite
5 3 (1.42%) Opscode Chef
6 2 (0.94%) Cacti
6 2 (0.94%) Check_MK
6 2 (0.94%) Control-M
6 2 (0.94%) Grafana
6 2 (0.94%) ITRS Geneos
6 2 (0.94%) Nagios
6 2 (0.94%) Rundeck
7 1 (0.47%) Kubernetes
7 1 (0.47%) Terraform
Vendors
1 33 (15.57%) Oracle
2 30 (14.15%) Solace
3 20 (9.43%) MuleSoft
4 15 (7.08%) New Relic
5 11 (5.19%) Perforce
6 8 (3.77%) Microsoft
7 7 (3.30%) Apigee
7 7 (3.30%) Cloudera
7 7 (3.30%) OpenLink
7 7 (3.30%) VMware
8 6 (2.83%) IBM
9 4 (1.89%) Ab Initio
9 4 (1.89%) Informatica
10 3 (1.42%) Bloomberg
11 2 (0.94%) Black Duck
11 2 (0.94%) hybris
11 2 (0.94%) Splunk
12 1 (0.47%) Tableau
12 1 (0.47%) Talend
12 1 (0.47%) WSO2
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