Period
to 21 February 2018

The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for Refactoring skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Refactoring over the 6 months to 21 February 2018 with a comparison to the same period in the previous 2 years.

Refactoring
England > London
6 months to
21 Feb 2018
Same period 2017 Same period 2016
Rank 431 587 562
Rank change year-on-year +156 -25 -41
Permanent jobs citing Refactoring 435 246 359
As % of all permanent IT jobs advertised in London 0.62% 0.35% 0.42%
As % of the Processes & Methodologies category 0.68% 0.39% 0.47%
Number of salaries quoted 297 220 306
London median annual salary £60,000 £65,000 £57,500
Median salary % change year-on-year -7.69% +13.04% +4.55%
10th Percentile £40,000 £41,250 £43,125
90th Percentile £80,000 £100,000 £83,750
England median annual salary £55,000 £49,750 £50,000
% change year-on-year +10.55% -0.50% +5.26%

Refactoring is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for process or methodology skills.

All Process and Methodology Skills
London
Permanent vacancies with a requirement for process or methodology skills 64,218 63,405 76,104
As % of all permanent IT jobs advertised in London 91.40% 90.52% 89.76%
Number of salaries quoted 52,603 53,702 64,499
London median annual salary £60,000 £60,000 £55,000
Median salary % change year-on-year - +9.09% -
10th Percentile £36,250 £33,750 £33,750
90th Percentile £92,500 £90,000 £87,500
England median annual salary £50,000 £50,000 £47,500
% change year-on-year - +5.26% +5.56%

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
Salary Trend in London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Refactoring in London.

Salary trend for Refactoring in London

Refactoring
Salary Histogram in London

The salary distribution of IT jobs citing Refactoring in London over the 6 months to 21 February 2018.

Salary histogram for Refactoring in London

Refactoring
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Refactoring within the London region over the 6 months to 21 February 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London +38 105 £61,250 +2.08% 18
South London -2 11 £30,000 -47.83% 1
West London +24 8 £60,000 +50.00% 7
East London -1 7 £62,500 +4.17% 5
Refactoring
England

For the 6 months to 21 February 2018, IT jobs citing Refactoring also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the London region with a requirement for Refactoring.

1 306 (70.34%) Agile Software Development
2 278 (63.91%) TDD
3 247 (56.78%) JavaScript
4 198 (45.52%) Java
5 193 (44.37%) BDD
6 164 (37.70%) Software Engineering
7 148 (34.02%) Finance
7 148 (34.02%) AngularJS
8 147 (33.79%) .NET
8 147 (33.79%) HTML
9 136 (31.26%) Git (software)
10 132 (30.34%) Microservices
11 127 (29.20%) CSS
12 124 (28.51%) SQL
13 117 (26.90%) C#
14 115 (26.44%) OO
15 110 (25.29%) Continuous Integration
16 107 (24.60%) Scrum
17 101 (23.22%) NoSQL
18 100 (22.99%) HTML5
19 98 (22.53%) MVC
20 91 (20.92%) Spring
21 90 (20.69%) Microsoft Azure
22 88 (20.23%) SQL Server
23 85 (19.54%) RESTful
23 85 (19.54%) CSS3
24 84 (19.31%) Amazon AWS
25 83 (19.08%) jQuery
26 78 (17.93%) Selenium
26 78 (17.93%) REST

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 44 (10.11%) CMS
2 34 (7.82%) EPiServer
3 26 (5.98%) Elasticsearch
4 21 (4.83%) WordPress
5 16 (3.68%) Sitecore CMS
6 12 (2.76%) Oracle SOA Suite
7 10 (2.30%) Apache
8 8 (1.84%) WebLogic
9 5 (1.15%) Ethereum
9 5 (1.15%) Hyperledger
9 5 (1.15%) IIS
10 4 (0.92%) Apache Spark
10 4 (0.92%) WebSphere
11 3 (0.69%) GlassFish
11 3 (0.69%) JBoss
11 3 (0.69%) Jetty
11 3 (0.69%) Mule
11 3 (0.69%) OpenStack
11 3 (0.69%) Tomcat
11 3 (0.69%) WebSphere Application Server
Applications
1 24 (5.52%) Photoshop
2 21 (4.83%) Adobe Creative Suite
Business Applications
1 16 (3.68%) Eloqua
2 9 (2.07%) MetaTrader
2 9 (2.07%) Payment Gateway
3 5 (1.15%) Markit EDM
4 2 (0.46%) Distributed Ledger
4 2 (0.46%) Shopify
5 1 (0.23%) Beauchamp
5 1 (0.23%) Magento
Cloud Services
1 90 (20.69%) Microsoft Azure
2 84 (19.31%) Amazon AWS
3 38 (8.74%) npm
4 21 (4.83%) GitHub
5 16 (3.68%) SaaS
6 12 (2.76%) Amazon S3
7 5 (1.15%) Cloud Computing
8 4 (0.92%) Amazon EC2
9 3 (0.69%) Heroku
9 3 (0.69%) Slack
10 2 (0.46%) Force.com
10 2 (0.46%) Sage Pay
10 2 (0.46%) Trello
11 1 (0.23%) CodePlex
Communications & Networking
1 54 (12.41%) Internet
2 24 (5.52%) ATM
3 9 (2.07%) SSL
4 8 (1.84%) HTTP
5 7 (1.61%) TCP/IP
6 3 (0.69%) SMTP
7 2 (0.46%) HTTPS
7 2 (0.46%) Network Security
8 1 (0.23%) Firewall
Database & Business Intelligence
1 101 (23.22%) NoSQL
2 88 (20.23%) SQL Server
3 72 (16.55%) MongoDB
4 50 (11.49%) MySQL
5 32 (7.36%) Couchbase
6 24 (5.52%) Relational Database
7 13 (2.99%) RDBMS
7 13 (2.99%) Redis
8 12 (2.76%) Hazelcast
9 11 (2.53%) PostgreSQL
9 11 (2.53%) SQL Server Integration Services
10 9 (2.07%) Cosmos DB
11 8 (1.84%) Azure SQL Database
11 8 (1.84%) Blockchain
11 8 (1.84%) Hadoop
11 8 (1.84%) SQL Server 2014
11 8 (1.84%) SQL Server Reporting Services
12 7 (1.61%) Data Warehouse
12 7 (1.61%) KDB
12 7 (1.61%) SQL Server Analysis Services
Development Applications
1 136 (31.26%) Git (software)
2 78 (17.93%) Selenium
3 58 (13.33%) Team Foundation Server
4 57 (13.10%) JUnit
5 48 (11.03%) Cucumber
6 47 (10.80%) Visual Studio
7 45 (10.34%) Maven
8 44 (10.11%) TeamCity
9 38 (8.74%) gulp
10 37 (8.51%) Octopus Deploy
11 35 (8.05%) Mocha
12 33 (7.59%) Bower
12 33 (7.59%) Karma Test Runner
12 33 (7.59%) Protractor
12 33 (7.59%) Sinon.JS
13 28 (6.44%) Subversion
14 26 (5.98%) Bitbucket
15 23 (5.29%) Jenkins
16 17 (3.91%) webpack
17 16 (3.68%) Jasmine
General
1 148 (34.02%) Finance
2 56 (12.87%) Retail
3 54 (12.41%) Banking
4 32 (7.36%) Investment Banking
5 31 (7.13%) Retail Banking
6 29 (6.67%) Front Office
7 23 (5.29%) Marketing
8 20 (4.60%) Advertising
9 12 (2.76%) Telecoms
10 11 (2.53%) Games
11 8 (1.84%) Financial Institution
12 7 (1.61%) Back Office
13 4 (0.92%) Online Betting
14 2 (0.46%) Legal
14 2 (0.46%) Publishing
15 1 (0.23%) Automotive
15 1 (0.23%) Electronics
Job Titles
1 343 (78.85%) Developer
2 114 (26.21%) Java Developer
3 67 (15.40%) Software Engineer
4 64 (14.71%) Senior Developer
5 55 (12.64%) .NET Developer
6 52 (11.95%) C# Developer
7 42 (9.66%) JavaScript Developer
8 41 (9.43%) Full Stack Developer
8 41 (9.43%) Java Engineer
9 39 (8.97%) Java Software Engineer
10 37 (8.51%) PHP Developer
11 32 (7.36%) Developer/Software Engineer
12 30 (6.90%) Java Software Developer
13 29 (6.67%) Agile Developer
14 27 (6.21%) Agile Java Developer
15 26 (5.98%) Front End Developer (Client-Side Developer)
16 24 (5.52%) JavaScript Engineer
17 22 (5.06%) C# .NET Developer
18 21 (4.83%) Digital Developer
18 21 (4.83%) WordPress Developer
Libraries, Frameworks & Software Standards
1 148 (34.02%) AngularJS
2 147 (33.79%) .NET
2 147 (33.79%) HTML
3 127 (29.20%) CSS
4 100 (22.99%) HTML5
5 91 (20.92%) Spring
6 85 (19.54%) CSS3
6 85 (19.54%) RESTful
7 83 (19.08%) jQuery
8 78 (17.93%) REST
9 77 (17.70%) Sass
10 74 (17.01%) Web Services
11 71 (16.32%) ASP.NET
12 66 (15.17%) ASP.NET MVC
13 65 (14.94%) Twitter Bootstrap
14 58 (13.33%) XML
15 54 (12.41%) LESS
15 54 (12.41%) React
16 51 (11.72%) Node.js
17 40 (9.20%) .NET Core
Miscellaneous
1 67 (15.40%) User Experience
2 47 (10.80%) Fintech
3 33 (7.59%) Cloud Native
4 29 (6.67%) Mobile App
5 28 (6.44%) Algorithms
5 28 (6.44%) Greenfield Project
6 24 (5.52%) Data Structures
6 24 (5.52%) EFT
7 21 (4.83%) Foreign Exchange (FX)
8 20 (4.60%) Internet of Things
9 19 (4.37%) Derivative
10 18 (4.14%) Analytical Skills
11 17 (3.91%) Hedge funds
12 15 (3.45%) Computer Science
12 15 (3.45%) Equity Derivative
13 11 (2.53%) EPoS
14 9 (2.07%) Linux Command Line
15 7 (1.61%) Bitcoin
16 6 (1.38%) Blog
17 4 (0.92%) Online Games
Operating Systems
1 73 (16.78%) Linux
2 41 (9.43%) Windows
3 24 (5.52%) Android
4 20 (4.60%) Unix
5 19 (4.37%) Apple iOS
6 3 (0.69%) Windows Server
7 1 (0.23%) CentOS
7 1 (0.23%) Mac OS
Processes & Methodologies
1 306 (70.34%) Agile Software Development
2 278 (63.91%) TDD
3 193 (44.37%) BDD
4 164 (37.70%) Software Engineering
5 132 (30.34%) Microservices
6 115 (26.44%) OO
7 110 (25.29%) Continuous Integration
8 107 (24.60%) Scrum
9 98 (22.53%) MVC
10 75 (17.24%) E-Commerce
11 70 (16.09%) Pair Programming
12 67 (15.40%) Web Development
13 64 (14.71%) SDLC
13 64 (14.71%) Test Automation
14 61 (14.02%) DevOps
15 54 (12.41%) Unit Testing
16 53 (12.18%) SEO
17 50 (11.49%) SOA
18 45 (10.34%) Asset Management
18 45 (10.34%) Responsive Web Design
Programming Languages
1 247 (56.78%) JavaScript
2 198 (45.52%) Java
3 124 (28.51%) SQL
4 117 (26.90%) C#
5 52 (11.95%) PHP
6 47 (10.80%) Python
7 32 (7.36%) C++
8 25 (5.75%) Ruby
9 20 (4.60%) Scala
10 19 (4.37%) ES6
10 19 (4.37%) TypeScript
11 17 (3.91%) T-SQL
12 14 (3.22%) Perl
13 12 (2.76%) R
14 10 (2.30%) Shell Script
15 7 (1.61%) Bash Shell
15 7 (1.61%) MATLAB
15 7 (1.61%) Tcl
16 5 (1.15%) Data Analysis Expressions (DAX)
16 5 (1.15%) Go
Qualifications
1 52 (11.95%) Degree
2 3 (0.69%) Computer Science Degree
2 3 (0.69%) Master's Degree
3 2 (0.46%) ISTQB
3 2 (0.46%) Microsoft Certification
3 2 (0.46%) PhD
4 1 (0.23%) CFA
Quality Assurance & Compliance
1 26 (5.98%) QA
2 3 (0.69%) EMIR
2 3 (0.69%) MiFID
System Software
1 29 (6.67%) Docker
2 3 (0.69%) Firmware
2 3 (0.69%) Virtual Machines
3 2 (0.46%) HDFS
4 1 (0.23%) Apache Flume
4 1 (0.23%) LXC
4 1 (0.23%) Oracle RAC
Systems Management
1 8 (1.84%) Ansible
1 8 (1.84%) Kubernetes
2 3 (0.69%) Puppet
3 2 (0.46%) Opscode Chef
3 2 (0.46%) Single Sign-On
3 2 (0.46%) Terraform
4 1 (0.23%) Data Guard
4 1 (0.23%) Enterprise Manager Cloud Control
4 1 (0.23%) Foglight
4 1 (0.23%) Salt
Vendors
1 63 (14.48%) Oracle
2 24 (5.52%) Google
3 21 (4.83%) Adobe
4 17 (3.91%) Microsoft
5 16 (3.68%) Marketo
5 16 (3.68%) Sitecore
6 11 (2.53%) Alias
7 8 (1.84%) MuleSoft
8 6 (1.38%) Xamarin
9 4 (0.92%) Facebook
10 3 (0.69%) Capita
10 3 (0.69%) MKS
10 3 (0.69%) Perforce
10 3 (0.69%) Salesforce.com
10 3 (0.69%) Solace
10 3 (0.69%) Sybase
10 3 (0.69%) Tableau
11 2 (0.46%) Bloomberg
11 2 (0.46%) IBM
11 2 (0.46%) Sage