The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Unit Testing skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Unit Testing over the 3 months to 23 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.

Unit Testing
London / City of London
3 months to
23 Jun 2017
Same period 2016 Same period 2015
Rank 74 98 112
Rank change year-on-year +24 +14  
Contract jobs citing Unit Testing 95 66 92
As % of all contract IT jobs advertised in the City of London 2.88% 1.95% 1.58%
As % of the Processes & Methodologies category 3.27% 2.27% 1.96%
Number of daily rates quoted 70 57 77
Median daily rate £484 £500 £413
Median daily rate % change year-on-year -3.25% +21.21%  
90% offered a daily rate of more than £334 £351 £325
10% offered a daily rate of more than £578 £625 £600
UK excluding London median daily rate £388 £375 £350
% change year-on-year +3.33% +7.14%  
Number of hourly rates quoted 0 0 1
Median hourly rate - - £45.00
UK excluding London median hourly rate £42.88 £43.00 £37.40
% change year-on-year -0.29% +14.97%  

Unit Testing 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 the City of London with a requirement for process and methodology skills.

Contract Process & Methodology Skills
City of London
Contract job vacancies with a requirement for process and methodology skills 2907 2906 4704
As % of all contract IT job vacancies advertised in the City of London 88.09% 85.87% 80.95%
Number of daily rates quoted 2235 2375 3702
Median daily rate £500 £475 £473
Median daily rate % change year-on-year +5.26% +0.52%  
90% offered a daily rate of more than £350 £335 £325
10% offered a daily rate of more than £650 £625 £625
UK excluding London median daily rate £415 £400 £383
% change year-on-year +3.75% +4.57%  
Number of hourly rates quoted 25 25 56
Median hourly rate £20.00 £19.00 £24.50
Median hourly rate % change year-on-year +5.26% -22.44%  
90% offered a hourly rate of more than £14.75 £12.50 £15.00
10% offered a hourly rate of more than £41.00 £31.50 £55.50
UK excluding London median hourly rate £33.50 £28.50 £30.00
% change year-on-year +17.54% -5.00%  

Unit Testing
Job Vacancy Trend in the City of London

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

Job vacancy trend for Unit Testing in the City of London

Unit Testing
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Unit Testing in the City of London.

Contractor daily rate trend for Unit Testing in the City of London

Unit Testing
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Unit Testing in the City of London over the 3 months to 23 June 2017.

Contractor daily rate histogram for Unit Testing in the City of London

Unit Testing
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for Unit Testing in the City of London

For the 6 months to 23 June 2017, IT contractor jobs citing Unit Testing 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 City of London region with a requirement for Unit Testing.

1 78 (47.27%) Agile Software Development
2 70 (42.42%) TDD
3 66 (40.00%) C#
4 63 (38.18%) SQL
5 56 (33.94%) JavaScript
6 55 (33.33%) CSS
7 54 (32.73%) Java
8 53 (32.12%) Web Services
9 50 (30.30%) .NET
10 48 (29.09%) HTML
10 48 (29.09%) OO
11 47 (28.48%) Finance
12 44 (26.67%) Test Automation
13 36 (21.82%) XML
14 34 (20.61%) BDD
14 34 (20.61%) REST
15 30 (18.18%) RESTful
15 30 (18.18%) Banking
16 29 (17.58%) SDLC
17 28 (16.97%) Git (software)
17 28 (16.97%) Spring
18 26 (15.76%) Web Development
18 26 (15.76%) QA
19 25 (15.15%) MVC
19 25 (15.15%) Continuous Integration
20 24 (14.55%) Jenkins
20 24 (14.55%) Scrum
20 24 (14.55%) SQL Server
21 23 (13.94%) AngularJS
21 23 (13.94%) Mockito

Unit Testing
Co-occurring IT Skills in the City of 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 8 (4.85%) Mule
2 7 (4.24%) Tomcat
3 6 (3.64%) WebLogic
4 5 (3.03%) Apache
5 3 (1.82%) IIS
6 2 (1.21%) Anypoint
6 2 (1.21%) Drupal
6 2 (1.21%) Elasticsearch
6 2 (1.21%) Mule ESB
6 2 (1.21%) Oracle Coherence
6 2 (1.21%) Umbraco
7 1 (0.61%) Apache Solr
7 1 (0.61%) Apache Spark
7 1 (0.61%) Confluence
7 1 (0.61%) MQSeries
7 1 (0.61%) Oracle Service Bus
7 1 (0.61%) SharePoint
7 1 (0.61%) WordPress
Applications
1 7 (4.24%) Microsoft Excel
2 6 (3.64%) Spreadsheet
3 1 (0.61%) Microsoft Office
3 1 (0.61%) MS Visio
Business Applications
1 4 (2.42%) Endur
2 2 (1.21%) FastStats
2 2 (1.21%) FastStats PeopleStage
3 1 (0.61%) Actimize
3 1 (0.61%) Magento
3 1 (0.61%) RMDS
Cloud Services
1 6 (3.64%) Amazon AWS
2 5 (3.03%) Microsoft Azure
3 4 (2.42%) TestFlight
4 1 (0.61%) Cloud Computing
4 1 (0.61%) GitHub
4 1 (0.61%) Google Cloud Platform
4 1 (0.61%) Salesforce Service Cloud
Communications & Networking
1 12 (7.27%) Internet
2 10 (6.06%) HTTP
3 7 (4.24%) FTP
4 1 (0.61%) BIG-IP
4 1 (0.61%) Extranet
4 1 (0.61%) F5 BIG-IP GTM
4 1 (0.61%) Firewall
4 1 (0.61%) Intranet
4 1 (0.61%) LAN
4 1 (0.61%) SSL
4 1 (0.61%) TCP/IP
4 1 (0.61%) WAN
Database & Business Intelligence
1 24 (14.55%) SQL Server
2 18 (10.91%) SQL Server Integration Services
3 17 (10.30%) Relational Database
4 14 (8.48%) SQL Server Reporting Services
5 11 (6.67%) MySQL
6 8 (4.85%) Data Warehouse
7 7 (4.24%) Big Data
7 7 (4.24%) MarkLogic
7 7 (4.24%) Siebel EIM
7 7 (4.24%) SQL Server 2012
7 7 (4.24%) SQL Server Analysis Services
8 6 (3.64%) MongoDB
8 6 (3.64%) NoSQL
9 5 (3.03%) Hadoop
10 4 (2.42%) Apache Hive
10 4 (2.42%) Azure SQL Database
10 4 (2.42%) CouchDB
10 4 (2.42%) SQLite
11 2 (1.21%) DataStage
11 2 (1.21%) SQL Server 2008
Development Applications
1 28 (16.97%) Git (software)
2 24 (14.55%) Jenkins
3 23 (13.94%) Mockito
4 20 (12.12%) JUnit
5 15 (9.09%) Cucumber
5 15 (9.09%) Moq
5 15 (9.09%) Team Foundation Server
6 14 (8.48%) JIRA
6 14 (8.48%) Maven
6 14 (8.48%) Selenium
7 12 (7.27%) WebDriver
8 9 (5.45%) NUnit
8 9 (5.45%) SpecFlow
8 9 (5.45%) Visual Studio
9 8 (4.85%) Jasmine
9 8 (4.85%) Protractor
10 7 (4.24%) Subversion
11 6 (3.64%) EasyMock
11 6 (3.64%) Eclipse
11 6 (3.64%) TeamCity
General
1 47 (28.48%) Finance
2 30 (18.18%) Banking
3 17 (10.30%) Front Office
4 12 (7.27%) Investment Banking
5 8 (4.85%) Retail
6 7 (4.24%) Financial Institution
6 7 (4.24%) Publishing
7 5 (3.03%) Marketing
8 2 (1.21%) Games
8 2 (1.21%) Law
9 1 (0.61%) Back Office
9 1 (0.61%) Digital Economy
9 1 (0.61%) Pharmaceutical
9 1 (0.61%) Retail Banking
Job Titles
1 142 (86.06%) Developer
2 29 (17.58%) C# Developer
3 27 (16.36%) Senior Developer
4 26 (15.76%) Java Developer
5 23 (13.94%) .NET Developer
6 18 (10.91%) JavaScript Developer
7 14 (8.48%) Full Stack Developer
8 13 (7.88%) Front End Developer (Client-Side Developer)
9 11 (6.67%) Angular Developer
10 9 (5.45%) QA Engineer
10 9 (5.45%) SQL Developer
11 8 (4.85%) Analyst
11 8 (4.85%) Senior Java Developer
11 8 (4.85%) Software Developer
12 7 (4.24%) Analyst Developer
12 7 (4.24%) Developer in Test
12 7 (4.24%) Siebel Developer
13 6 (3.64%) C# .NET Developer
13 6 (3.64%) C# WPF Developer
13 6 (3.64%) Node.js Developer
Libraries, Frameworks & Software Standards
1 55 (33.33%) CSS
2 53 (32.12%) Web Services
3 50 (30.30%) .NET
4 48 (29.09%) HTML
5 36 (21.82%) XML
6 34 (20.61%) REST
7 30 (18.18%) RESTful
8 28 (16.97%) Spring
9 23 (13.94%) AngularJS
10 22 (13.33%) JSON
11 20 (12.12%) ASP.NET
12 19 (11.52%) SOAP
12 19 (11.52%) WPF
13 17 (10.30%) Hibernate
14 15 (9.09%) J2EE
15 14 (8.48%) HTML5
15 14 (8.48%) WCF
16 13 (7.88%) Java EE
16 13 (7.88%) React
17 12 (7.27%) .NET Framework
Miscellaneous
1 21 (12.73%) Foreign Exchange (FX)
2 13 (7.88%) Data Structures
3 12 (7.27%) Hedge funds
3 12 (7.27%) Mobile App
4 11 (6.67%) Analytical Skills
4 11 (6.67%) Derivative
5 10 (6.06%) Computer Science
6 9 (5.45%) RIA
7 7 (4.24%) Greenfield Project
8 6 (3.64%) Equities
9 5 (3.03%) Algorithms
9 5 (3.03%) NHS
10 4 (2.42%) Enterprise Software
10 4 (2.42%) Fintech
10 4 (2.42%) User Experience
11 2 (1.21%) Credit Risk
12 1 (0.61%) Fixed Income
12 1 (0.61%) Management Information System
12 1 (0.61%) Market Risk
12 1 (0.61%) N-Tier
Operating Systems
1 17 (10.30%) Linux
2 11 (6.67%) Unix
3 7 (4.24%) Apple iOS
4 4 (2.42%) Windows
5 3 (1.82%) Android
6 2 (1.21%) Windows Server
Processes & Methodologies
1 78 (47.27%) Agile Software Development
2 70 (42.42%) TDD
3 48 (29.09%) OO
4 44 (26.67%) Test Automation
5 34 (20.61%) BDD
6 29 (17.58%) SDLC
7 26 (15.76%) Web Development
8 25 (15.15%) Continuous Integration
8 25 (15.15%) MVC
9 24 (14.55%) Scrum
10 19 (11.52%) E-Commerce
10 19 (11.52%) Multithreading
10 19 (11.52%) Software Engineering
11 18 (10.91%) Pair Programming
12 17 (10.30%) Front End Development
12 17 (10.30%) MVVM
13 16 (9.70%) Open Source
14 15 (9.09%) OOP
15 13 (7.88%) Waterfall
15 13 (7.88%) Workflow
Programming Languages
1 66 (40.00%) C#
2 63 (38.18%) SQL
3 56 (33.94%) JavaScript
4 54 (32.73%) Java
5 12 (7.27%) T-SQL
6 11 (6.67%) Bash Shell
7 7 (4.24%) ES6
7 7 (4.24%) PL/SQL
7 7 (4.24%) Ruby
7 7 (4.24%) Shell Script
7 7 (4.24%) STATISTICA Visual Basic
8 6 (3.64%) Apple Swift
8 6 (3.64%) Python
9 5 (3.03%) C++
9 5 (3.03%) Objective-C
10 3 (1.82%) PHP
10 3 (1.82%) Scala
10 3 (1.82%) TypeScript
10 3 (1.82%) VB.NET
11 2 (1.21%) VBA
Qualifications
1 7 (4.24%) Degree
1 7 (4.24%) Siebel Certification
2 4 (2.42%) Computer Science Degree
3 2 (1.21%) CFA
4 1 (0.61%) BPSS Clearance
4 1 (0.61%) Master's Degree
4 1 (0.61%) MCP
4 1 (0.61%) Microsoft Certification
4 1 (0.61%) SC Cleared
4 1 (0.61%) Security Cleared
Quality Assurance & Compliance
1 26 (15.76%) QA
2 5 (3.03%) MiFID
3 2 (1.21%) ISO/IEC 27001
4 1 (0.61%) SLA
System Software
1 4 (2.42%) Docker
Systems Management
1 4 (2.42%) Oozie
2 1 (0.61%) Control-M
2 1 (0.61%) Kubernetes
Vendors
1 14 (8.48%) Microsoft
2 11 (6.67%) Oracle
3 7 (4.24%) Siebel
4 5 (3.03%) Typemock
5 4 (2.42%) OpenLink
6 3 (1.82%) ATG
6 3 (1.82%) hybris
6 3 (1.82%) IBM
6 3 (1.82%) Informatica
7 2 (1.21%) Ab Initio
7 2 (1.21%) Apteco
7 2 (1.21%) Bloomberg
7 2 (1.21%) CODA
7 2 (1.21%) Cognos
7 2 (1.21%) FXall
7 2 (1.21%) Google
7 2 (1.21%) MuleSoft
7 2 (1.21%) Reuters
7 2 (1.21%) Salesforce.com
7 2 (1.21%) Talend
City, London
Haysfm
Rate: £400.00 - £450.00 per day
Posted: Yesterday
City, London
Pioneer Search
Rate: £450 - £500 per day
Posted: 2 days ago
City, London
Haybrook IT Resourcing Ltd
Rate: Up to £500 per day
Posted: Yesterday
City, London
Salt
Rate: £400.00 - £500.00 per day
Posted: 3 days ago
City, London
Rullion
Posted: 3 days ago
City, London
Roc Search
Posted: 2 days ago