Period
to 17 November 2017

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 6 months to 17 November 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
6 months to
17 Nov 2017
Same period 2016 Same period 2015
Rank 485 425 490
Rank change year-on-year -60 +65 +8
Contract jobs citing Refactoring 143 201 122
As % of all contract IT jobs advertised in London 0.31% 0.44% 0.26%
As % of the Processes & Methodologies category 0.35% 0.51% 0.31%
Number of daily rates quoted 109 146 99
London median daily rate £550 £525 £438
Median daily rate % change year-on-year +4.76% +20.00% -10.71%
10th Percentile £363 £363 £319
90th Percentile £665 £606 £605
England median daily rate £470 £500 £400
% change year-on-year -6.00% +25.00% -11.11%
Number of hourly rates quoted 0 1 0
London median hourly rate - £50.00 -
England median hourly rate £19.30 £46.25 £45.00
% change year-on-year -58.28% +2.78% -

Refactoring 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 40725 39072 39570
As % of all contract IT jobs advertised in London 86.97% 86.26% 83.83%
Number of daily rates quoted 29617 28032 28294
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +2.86%
10th Percentile £313 £305 £288
90th Percentile £669 £644 £638
England median daily rate £450 £425 £420
% change year-on-year +5.88% +1.19% +5.00%
Number of hourly rates quoted 381 402 477
London median hourly rate £22.50 £21.89 £20.00
Median hourly rate % change year-on-year +2.79% +9.45% +11.11%
10th Percentile £13.31 £12.25 £11.25
90th Percentile £52.50 £52.26 £50.00
England median hourly rate £24.00 £24.03 £22.50
% change year-on-year -0.12% +6.80% +18.42%

Refactoring
Job Vacancy Trend in London

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

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 6 months to 17 November 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 6 months to 17 November 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 -2 47 £550 +4.76% 3
East London 0 7 £533 -5.33% 2
West London -5 3 £388 -18.42%
South London -19 2 £379 -10.88% 1
North London - 1 £275 -
Refactoring
England

For the 6 months to 17 November 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 92 (64.34%) Agile Software Development
2 77 (53.85%) TDD
3 64 (44.76%) JavaScript
4 62 (43.36%) Continuous Integration
5 60 (41.96%) HTML
6 57 (39.86%) Java
7 54 (37.76%) CSS
8 52 (36.36%) Git (software)
9 50 (34.97%) Web Services
9 50 (34.97%) Amazon AWS
10 49 (34.27%) HTML5
10 49 (34.27%) Scrum
11 48 (33.57%) MVC
12 40 (27.97%) BDD
13 39 (27.27%) AngularJS
14 38 (26.57%) Finance
15 37 (25.87%) C#
15 37 (25.87%) Test Automation
15 37 (25.87%) MongoDB
16 36 (25.17%) Pair Programming
16 36 (25.17%) SQL
17 35 (24.48%) Software Engineering
18 32 (22.38%) .NET
18 32 (22.38%) SQL Server
19 31 (21.68%) SOA
19 31 (21.68%) Kanban
20 30 (20.98%) Front End Development
21 29 (20.28%) Microservices
22 28 (19.58%) Domain-Driven Design
23 27 (18.88%) SOLID

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 10 (6.99%) CMS
1 10 (6.99%) EPiServer
2 7 (4.90%) Sitecore CMS
3 6 (4.20%) WordPress
4 5 (3.50%) Elasticsearch
5 4 (2.80%) Apache
5 4 (2.80%) WebSphere
6 3 (2.10%) Apache Solr
6 3 (2.10%) Apache Spark
6 3 (2.10%) IIS
6 3 (2.10%) JBoss
7 2 (1.40%) Mule
7 2 (1.40%) Oracle SOA Suite
7 2 (1.40%) Tomcat
8 1 (0.70%) Apache Pig
8 1 (0.70%) Confluence
8 1 (0.70%) OpenStack
Applications
1 5 (3.50%) Adobe Creative Suite
1 5 (3.50%) Photoshop
Business Applications
1 7 (4.90%) Markit EDM
2 3 (2.10%) Eloqua
2 3 (2.10%) Endur
2 3 (2.10%) MetaTrader
Cloud Services
1 50 (34.97%) Amazon AWS
2 24 (16.78%) Microsoft Azure
3 5 (3.50%) Heroku
4 3 (2.10%) AWS CloudFormation
4 3 (2.10%) GitHub
4 3 (2.10%) Google Cloud Platform
4 3 (2.10%) npm
4 3 (2.10%) SaaS
5 2 (1.40%) Cloud Computing
6 1 (0.70%) IaaS
6 1 (0.70%) PaaS
Communications & Networking
1 8 (5.59%) HTTP
2 6 (4.20%) DNS
2 6 (4.20%) TCP/IP
3 5 (3.50%) SMS
3 5 (3.50%) SSL
4 4 (2.80%) FTP
5 2 (1.40%) ICMP
5 2 (1.40%) Network Security
6 1 (0.70%) Firewall
6 1 (0.70%) Kerberos
6 1 (0.70%) LDAP
Database & Business Intelligence
1 37 (25.87%) MongoDB
2 32 (22.38%) SQL Server
3 14 (9.79%) PostgreSQL
4 11 (7.69%) NoSQL
4 11 (7.69%) Relational Database
5 10 (6.99%) SQL Server Integration Services
6 7 (4.90%) MySQL
7 5 (3.50%) CouchDB
7 5 (3.50%) Hadoop
7 5 (3.50%) RDBMS
8 4 (2.80%) Big Data
8 4 (2.80%) Couchbase
8 4 (2.80%) Data Warehouse
8 4 (2.80%) Redis
9 3 (2.10%) Apache Cassandra
9 3 (2.10%) DataStax
9 3 (2.10%) DB2
9 3 (2.10%) Hazelcast
9 3 (2.10%) InfluxDB
9 3 (2.10%) SQL Server Reporting Services
Development Applications
1 52 (36.36%) Git (software)
2 24 (16.78%) gulp
3 21 (14.69%) Grunt
3 21 (14.69%) IntelliJ
4 13 (9.09%) Team Foundation Server
5 12 (8.39%) Jenkins
6 7 (4.90%) JIRA
6 7 (4.90%) TeamCity
7 6 (4.20%) Gradle
7 6 (4.20%) Maven
7 6 (4.20%) Selenium
7 6 (4.20%) Subversion
7 6 (4.20%) Visual Studio
8 5 (3.50%) Bitbucket
8 5 (3.50%) JUnit
9 4 (2.80%) Hudson
9 4 (2.80%) Mockito
9 4 (2.80%) NUnit
9 4 (2.80%) Spock
9 4 (2.80%) webpack
General
1 38 (26.57%) Finance
2 14 (9.79%) Banking
3 6 (4.20%) Front Office
4 4 (2.80%) Advertising
4 4 (2.80%) Back Office
4 4 (2.80%) Marketing
4 4 (2.80%) Retail
5 3 (2.10%) Games
6 1 (0.70%) Investment Banking
6 1 (0.70%) Online Betting
6 1 (0.70%) Pharmaceutical
6 1 (0.70%) Publishing
6 1 (0.70%) Telecoms
Job Titles
1 108 (75.52%) Developer
2 29 (20.28%) Java Developer
3 20 (13.99%) .NET Developer
3 20 (13.99%) C# Developer
4 19 (13.29%) Senior Developer
5 17 (11.89%) Architect
6 12 (8.39%) C# .NET Developer
7 10 (6.99%) Agile Developer
7 10 (6.99%) Agile Java Developer
7 10 (6.99%) Analyst
7 10 (6.99%) JavaScript Developer
8 9 (6.29%) Analyst Developer
9 7 (4.90%) Front End Developer (Client-Side Developer)
9 7 (4.90%) PHP Developer
9 7 (4.90%) SQL Developer
10 6 (4.20%) C# WPF Developer
10 6 (4.20%) Lead Developer
10 6 (4.20%) Senior Java Developer
10 6 (4.20%) WordPress Developer
10 6 (4.20%) WPF Developer
Libraries, Frameworks & Software Standards
1 60 (41.96%) HTML
2 54 (37.76%) CSS
3 50 (34.97%) Web Services
4 49 (34.27%) HTML5
5 39 (27.27%) AngularJS
6 32 (22.38%) .NET
7 26 (18.18%) Dropwizard
8 24 (16.78%) CSS3
9 23 (16.08%) REST
10 22 (15.38%) jQuery
11 21 (14.69%) Hystrix
11 21 (14.69%) Scalatra
12 20 (13.99%) Play Framework
13 19 (13.29%) React
13 19 (13.29%) SOAP
14 18 (12.59%) RESTful
15 16 (11.19%) ASP.NET
15 16 (11.19%) Spring
16 15 (10.49%) Twitter Bootstrap
17 13 (9.09%) XML
Miscellaneous
1 14 (9.79%) User Experience
2 10 (6.99%) Data Structures
3 8 (5.59%) Algorithms
3 8 (5.59%) Derivative
4 7 (4.90%) Fintech
4 7 (4.90%) Foreign Exchange (FX)
5 6 (4.20%) Analytical Skills
5 6 (4.20%) Computer Science
6 5 (3.50%) Distributed Denial-of-Service
6 5 (3.50%) Fixed Income
6 5 (3.50%) Greenfield Project
6 5 (3.50%) N-Tier
6 5 (3.50%) Public Cloud
7 4 (2.80%) Cloud Native
8 3 (2.10%) Market Risk
9 2 (1.40%) Client/Server
9 2 (1.40%) Equities
9 2 (1.40%) Private Cloud
9 2 (1.40%) Wiki
10 1 (0.70%) Smart Energy
Operating Systems
1 18 (12.59%) Linux
2 9 (6.29%) Windows
3 8 (5.59%) Unix
4 4 (2.80%) Apple iOS
4 4 (2.80%) CoreOS
5 3 (2.10%) Windows Server
6 1 (0.70%) Android
6 1 (0.70%) DC/OS
6 1 (0.70%) Red Hat Enterprise Linux
6 1 (0.70%) Windows Server 2008
Processes & Methodologies
1 92 (64.34%) Agile Software Development
2 77 (53.85%) TDD
3 62 (43.36%) Continuous Integration
4 49 (34.27%) Scrum
5 48 (33.57%) MVC
6 40 (27.97%) BDD
7 37 (25.87%) Test Automation
8 36 (25.17%) Pair Programming
9 35 (24.48%) Software Engineering
10 31 (21.68%) Kanban
10 31 (21.68%) SOA
11 30 (20.98%) Front End Development
12 29 (20.28%) Microservices
13 28 (19.58%) Domain-Driven Design
14 27 (18.88%) SOLID
15 26 (18.18%) Web Development
16 24 (16.78%) OO
16 24 (16.78%) Web Application Development
17 22 (15.38%) Digital Transformation Programme
18 20 (13.99%) DevOps
Programming Languages
1 64 (44.76%) JavaScript
2 57 (39.86%) Java
3 37 (25.87%) C#
4 36 (25.17%) SQL
5 24 (16.78%) Groovy
6 14 (9.79%) Python
7 8 (5.59%) Ruby
7 8 (5.59%) Scala
7 8 (5.59%) T-SQL
8 7 (4.90%) PHP
9 6 (4.20%) Perl
9 6 (4.20%) Shell Script
10 5 (3.50%) C
11 4 (2.80%) C++
11 4 (2.80%) Korn
11 4 (2.80%) TypeScript
12 3 (2.10%) Clojure
12 3 (2.10%) Kotlin
12 3 (2.10%) Objective-C
13 1 (0.70%) PL/SQL
Qualifications
1 7 (4.90%) Degree
2 6 (4.20%) Security Cleared
3 4 (2.80%) SC Cleared
4 3 (2.10%) CISA
4 3 (2.10%) CISM
4 3 (2.10%) CISSP
5 1 (0.70%) A+ Certification
5 1 (0.70%) BPSS Clearance
Quality Assurance & Compliance
1 23 (16.08%) QA
2 4 (2.80%) EMIR
2 4 (2.80%) FedRAMP
2 4 (2.80%) MiFID
2 4 (2.80%) PCI DSS
3 2 (1.40%) Dodd-Frank
System Software
1 5 (3.50%) Docker
2 3 (2.10%) Apache Flume
3 2 (1.40%) HDFS
4 1 (0.70%) Active Directory
4 1 (0.70%) Oracle RAC
4 1 (0.70%) Virtual Machines
4 1 (0.70%) VMware Infrastructure
Systems Management
1 12 (8.39%) Puppet
2 11 (7.69%) Ansible
3 8 (5.59%) Opscode Chef
4 4 (2.80%) Docker Swarm
4 4 (2.80%) Terraform
5 3 (2.10%) Grafana
5 3 (2.10%) Kibana
5 3 (2.10%) logstash
6 1 (0.70%) Chronos
6 1 (0.70%) Consul
6 1 (0.70%) Data Guard
6 1 (0.70%) Marathon
6 1 (0.70%) Mesos
6 1 (0.70%) Oracle Enterprise Manager
Vendors
1 21 (14.69%) New Relic
2 17 (11.89%) Oracle
3 13 (9.09%) Microsoft
4 7 (4.90%) Sitecore
5 5 (3.50%) Adobe
5 5 (3.50%) Solace
6 4 (2.80%) Cloudera
6 4 (2.80%) ForgeRock
6 4 (2.80%) MuleSoft
6 4 (2.80%) TIBCO
7 3 (2.10%) Google
7 3 (2.10%) Marketo
7 3 (2.10%) OpenLink
8 2 (1.40%) IBM
8 2 (1.40%) Perforce
9 1 (0.70%) hybris
9 1 (0.70%) Infragistics
9 1 (0.70%) Twitter
9 1 (0.70%) VMware
9 1 (0.70%) Xamarin