The following table provides summary statistics for contract job vacancies advertised in the East of England with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 3 months to 25 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.

Test-Driven Development (TDD)
England / East of England
3 months to
25 Jun 2017
Same period 2016 Same period 2015
Rank 8 42 37
Rank change year-on-year +34 -5  
Contract jobs citing TDD 252 96 144
As % of all contract IT jobs advertised in the East of England 10.95% 3.85% 4.73%
As % of the Processes & Methodologies category 13.00% 4.81% 5.92%
Number of daily rates quoted 161 62 65
Median daily rate £475 £400 £400
Median daily rate % change year-on-year +18.75% -  
90% offered a daily rate of more than £300 £241 £350
10% offered a daily rate of more than £613 £523 £500
UK excluding London median daily rate £420 £413 £375
% change year-on-year +1.81% +10.00%  
Number of hourly rates quoted 8 5 2
Median hourly rate £41.50 £31.00 £38.75
Median hourly rate % change year-on-year +33.87% -20.00%  
90% offered a hourly rate of more than £35.00 £28.70 £35.75
10% offered a hourly rate of more than £62.50 £34.36 £41.75
UK excluding London median hourly rate £41.50 £40.00 £43.75
% change year-on-year +3.75% -8.57%  

TDD 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 East of England with a requirement for process and methodology skills.

Contract Process & Methodology Skills
East of England
Contract job vacancies with a requirement for process and methodology skills 1939 1997 2434
As % of all contract IT job vacancies advertised in the East of England 84.27% 80.07% 79.88%
Number of daily rates quoted 1122 1153 1450
Median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25%  
90% offered a daily rate of more than £290 £260 £273
10% offered a daily rate of more than £575 £575 £525
UK excluding London median daily rate £415 £400 £380
% change year-on-year +3.75% +5.26%  
Number of hourly rates quoted 136 152 179
Median hourly rate £35.00 £27.62 £33.00
Median hourly rate % change year-on-year +26.71% -16.30%  
90% offered a hourly rate of more than £13.00 £16.50 £12.00
10% offered a hourly rate of more than £62.50 £47.50 £48.50
UK excluding London median hourly rate £34.00 £28.50 £30.00
% change year-on-year +19.29% -5.00%  

TDD
Job Vacancy Trend in the East of England

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

Job vacancy trend for TDD in the East of England

TDD
Contractor Daily Rate Trend in the East of England

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in the East of England.

Contractor daily rate trend for TDD in the East of England

TDD
Contractor Daily Rate Histogram in the East of England

The daily rate distribution of IT jobs citing TDD in the East of England over the 3 months to 25 June 2017.

Contractor daily rate histogram for TDD in the East of England

TDD
Contractor Hourly Rate Trend in the East of England

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in the East of England.

Contractor hourly rate trend for TDD in the East of England

TDD
Contractor Hourly Rate Histogram in the East of England

The hourly rate distribution of IT jobs citing TDD in the East of England over the 3 months to 25 June 2017.

Contractor hourly rate histogram for TDD in the East of England

TDD
Contract Job Locations in the East of England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the East of England region over the 3 months to 25 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
Essex +22 145 £514 +71.25% 11
Cambridgeshire +19 51 £340 -9.33% 29
Hertfordshire +1 27 £525 +13.51% 26
Norfolk +16 15 £425 +6.25%
Bedfordshire -4 11 £330 -40.00% 3
Suffolk +12 3 £285 -12.30% 3
TDD
England

For the 6 months to 25 June 2017, IT contractor jobs citing TDD 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 East of England region with a requirement for TDD.

1 411 (84.92%) Agile Software Development
2 203 (41.94%) Java
3 190 (39.26%) Scrum
4 185 (38.22%) Continuous Integration
5 141 (29.13%) XML
5 141 (29.13%) SOA
6 140 (28.93%) Jenkins
7 136 (28.10%) Git (software)
8 128 (26.45%) DevOps
9 125 (25.83%) JavaScript
10 124 (25.62%) Test Automation
11 120 (24.79%) JSON
12 114 (23.55%) BDD
13 108 (22.31%) Kanban
14 107 (22.11%) HTML
15 105 (21.69%) Oracle
16 104 (21.49%) Middleware
17 100 (20.66%) Linux
18 96 (19.83%) .NET
18 96 (19.83%) MVC
19 94 (19.42%) C#
20 85 (17.56%) Finance
21 77 (15.91%) CSS
22 76 (15.70%) Manufacturing
23 73 (15.08%) E-Commerce
23 73 (15.08%) RESTful
23 73 (15.08%) Mentoring
24 72 (14.88%) WSO2
25 71 (14.67%) Relational Database
26 70 (14.46%) Spring

TDD
Co-occurring IT Skills in the East of England 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 66 (13.64%) Oracle SOA Suite
2 49 (10.12%) JBoss
3 40 (8.26%) Apache
4 38 (7.85%) Confluence
4 38 (7.85%) Mule
5 35 (7.23%) Oracle Service Bus
6 22 (4.55%) WebLogic
7 11 (2.27%) Adobe Experience Manager
7 11 (2.27%) CMS
7 11 (2.27%) WebSphere
8 7 (1.45%) Cloud Foundry
8 7 (1.45%) Tomcat
9 5 (1.03%) Apache Spark
10 4 (0.83%) Apache Pig
10 4 (0.83%) IIS
11 3 (0.62%) Magnolia
11 3 (0.62%) WebSphere Application Server
12 2 (0.41%) Elasticsearch
12 2 (0.41%) nginx
12 2 (0.41%) Umbraco
Applications
1 5 (1.03%) Microsoft Office
1 5 (1.03%) MS Visio
1 5 (1.03%) Photoshop
2 2 (0.41%) Adobe Illustrator
2 2 (0.41%) Microsoft Excel
2 2 (0.41%) Microsoft PowerPoint
2 2 (0.41%) OmniGraffle
Business Applications
1 61 (12.60%) SAP Oil and Gas
2 6 (1.24%) Payment Gateway
3 3 (0.62%) SDL Web 8
4 2 (0.41%) Oracle ERP
5 1 (0.21%) Oracle EBS R12
5 1 (0.21%) Oracle SCM
Cloud Services
1 33 (6.82%) Microsoft Azure
2 31 (6.40%) Amazon AWS
3 26 (5.37%) GitHub
4 15 (3.10%) PaaS
5 13 (2.69%) IaaS
6 5 (1.03%) Google Analytics
7 3 (0.62%) Amazon EC2
7 3 (0.62%) Amazon S3
7 3 (0.62%) SaaS
8 2 (0.41%) Amazon SQS
8 2 (0.41%) Sauce Labs
9 1 (0.21%) Amazon CloudSearch
9 1 (0.21%) AWS CloudFormation
9 1 (0.21%) AWS Lambda
9 1 (0.21%) Google App Engine
9 1 (0.21%) Google Cloud Platform
Communications & Networking
1 68 (14.05%) HTTP
2 55 (11.36%) SSL
3 53 (10.95%) TCP/IP
4 15 (3.10%) LDAP
5 11 (2.27%) DNS
6 4 (0.83%) Intranet
7 3 (0.62%) Internet
8 1 (0.21%) DHCP
8 1 (0.21%) FTP
8 1 (0.21%) IPsec
Database & Business Intelligence
1 71 (14.67%) Relational Database
2 40 (8.26%) SQL Server
3 29 (5.99%) NoSQL
4 23 (4.75%) MySQL
5 17 (3.51%) MariaDB
6 12 (2.48%) Big Data
7 11 (2.27%) MongoDB
8 9 (1.86%) Apache Cassandra
9 7 (1.45%) PostgreSQL
10 6 (1.24%) Hadoop
11 5 (1.03%) Apache Hive
11 5 (1.03%) HBase
11 5 (1.03%) SQL Server 2014
12 4 (0.83%) Impala
12 4 (0.83%) RDBMS
12 4 (0.83%) Redis
12 4 (0.83%) Sqoop
13 3 (0.62%) MarkLogic
14 2 (0.41%) Couchbase
14 2 (0.41%) SQL Server 2012
Development Applications
1 140 (28.93%) Jenkins
2 136 (28.10%) Git (software)
3 68 (14.05%) Maven
4 65 (13.43%) JUnit
5 58 (11.98%) Subversion
6 54 (11.16%) JIRA
7 31 (6.40%) Selenium
8 30 (6.20%) SoapUI
9 28 (5.79%) Mockito
10 27 (5.58%) Cucumber
11 25 (5.17%) Team Foundation Server
12 24 (4.96%) Gradle
13 22 (4.55%) Atlassian Bamboo
14 20 (4.13%) Calabash
15 17 (3.51%) JIRA Agile
16 13 (2.69%) Ant
17 11 (2.27%) gulp
17 11 (2.27%) JMeter
17 11 (2.27%) WebDriver
18 10 (2.07%) Appium
General
1 85 (17.56%) Finance
2 76 (15.70%) Manufacturing
3 65 (13.43%) Marketing
4 61 (12.60%) Electronics
4 61 (12.60%) Telecoms
5 17 (3.51%) Automotive
6 13 (2.69%) Retail
7 5 (1.03%) Banking
7 5 (1.03%) Legal
8 3 (0.62%) Games
8 3 (0.62%) Publishing
9 2 (0.41%) Back Office
9 2 (0.41%) Corporate Banking
Job Titles
1 308 (63.64%) Developer
2 117 (24.17%) Java Developer
3 68 (14.05%) Agile Developer
4 51 (10.54%) .NET Developer
5 48 (9.92%) Senior Developer
6 39 (8.06%) C# Developer
7 36 (7.44%) DevOps Engineer
8 34 (7.02%) Senior Java Developer
9 33 (6.82%) Integration Developer
9 33 (6.82%) SOA Developer
10 30 (6.20%) Full Stack Developer
11 29 (5.99%) AWS Developer
12 28 (5.79%) C# .NET Developer
13 26 (5.37%) Scrum Master
14 25 (5.17%) Agile Java Developer
15 23 (4.75%) Architect
16 21 (4.34%) Node.js Developer
17 20 (4.13%) Android Developer
18 19 (3.93%) Analyst
19 18 (3.72%) JavaScript Developer
Libraries, Frameworks & Software Standards
1 141 (29.13%) XML
2 120 (24.79%) JSON
3 107 (22.11%) HTML
4 104 (21.49%) Middleware
5 96 (19.83%) .NET
6 77 (15.91%) CSS
7 73 (15.08%) RESTful
8 70 (14.46%) Spring
9 64 (13.22%) REST
10 62 (12.81%) Web Services
10 62 (12.81%) XSLT
11 61 (12.60%) AngularJS
12 51 (10.54%) Node.js
13 50 (10.33%) J2EE
14 49 (10.12%) HTML5
15 44 (9.09%) Swagger
16 37 (7.64%) SOAP
17 36 (7.44%) Apache Camel
18 35 (7.23%) Hibernate
18 35 (7.23%) WireMock
Miscellaneous
1 63 (13.02%) Greenfield Project
2 44 (9.09%) Mobile App
3 32 (6.61%) Animation
3 32 (6.61%) Enterprise Software
4 27 (5.58%) Analytical Skills
5 20 (4.13%) Virtual Team
6 14 (2.89%) Client/Server
7 11 (2.27%) User Experience
8 10 (2.07%) Computer Science
8 10 (2.07%) iPhone
9 5 (1.03%) iPad
9 5 (1.03%) Web 2.0
10 4 (0.83%) Data Structures
10 4 (0.83%) RIA
11 3 (0.62%) Algorithms
11 3 (0.62%) W3C
12 2 (0.41%) Graphic Design
12 2 (0.41%) N-Tier
12 2 (0.41%) PMI
12 2 (0.41%) Tandem
Operating Systems
1 100 (20.66%) Linux
2 52 (10.74%) Unix
3 34 (7.02%) Android
4 33 (6.82%) Mac OS X
5 32 (6.61%) Red Hat Enterprise Linux
6 26 (5.37%) Apple iOS
7 25 (5.17%) Windows
8 10 (2.07%) CoreOS
8 10 (2.07%) Solaris
8 10 (2.07%) Ubuntu
9 4 (0.83%) HPUX
10 3 (0.62%) AIX
11 1 (0.21%) Mac OS
Processes & Methodologies
1 411 (84.92%) Agile Software Development
2 190 (39.26%) Scrum
3 185 (38.22%) Continuous Integration
4 141 (29.13%) SOA
5 128 (26.45%) DevOps
6 124 (25.62%) Test Automation
7 114 (23.55%) BDD
8 108 (22.31%) Kanban
9 96 (19.83%) MVC
10 73 (15.08%) E-Commerce
10 73 (15.08%) Mentoring
11 69 (14.26%) Microservices
11 69 (14.26%) User Stories
12 68 (14.05%) Open Source
13 67 (13.84%) Pair Programming
14 64 (13.22%) Software Engineering
15 63 (13.02%) Digital Marketing
15 63 (13.02%) Programme Management
16 61 (12.60%) Business Intelligence
17 59 (12.19%) Coaching
Programming Languages
1 203 (41.94%) Java
2 125 (25.83%) JavaScript
3 94 (19.42%) C#
4 69 (14.26%) SQL
5 44 (9.09%) XPath
6 28 (5.79%) Groovy
7 26 (5.37%) Perl
8 25 (5.17%) C
9 21 (4.34%) PL/SQL
9 21 (4.34%) Python
10 14 (2.89%) Apple Swift
10 14 (2.89%) Scala
11 12 (2.48%) C++
11 12 (2.48%) Objective-C
12 9 (1.86%) PHP
13 8 (1.65%) Ruby
14 7 (1.45%) TypeScript
15 6 (1.24%) Shell Script
16 5 (1.03%) Go
16 5 (1.03%) T-SQL
Qualifications
1 12 (2.48%) Degree
2 7 (1.45%) ISEB
2 7 (1.45%) ISTQB
3 6 (1.24%) Security Cleared
4 5 (1.03%) BPSS Clearance
4 5 (1.03%) Computer Science Degree
5 2 (0.41%) PMI Certification
5 2 (0.41%) PMP
5 2 (0.41%) Sun Certification
6 1 (0.21%) CITP
6 1 (0.21%) ISTQB Foundation Certification
6 1 (0.21%) MCP
6 1 (0.21%) Microsoft Certification
6 1 (0.21%) SC Cleared
Quality Assurance & Compliance
1 34 (7.02%) QA
2 5 (1.03%) Data Quality
3 4 (0.83%) Disclosure Scotland
4 3 (0.62%) WAI
5 1 (0.21%) SLA
System Software
1 53 (10.95%) Docker
2 8 (1.65%) VMware Infrastructure
3 4 (0.83%) Apache Flume
4 2 (0.41%) Active Directory
5 1 (0.21%) Virtual Machines
5 1 (0.21%) Xen
Systems Management
1 61 (12.60%) Opscode Chef
2 51 (10.54%) Puppet
3 28 (5.79%) Ansible
4 3 (0.62%) TeamSite
Vendors
1 105 (21.69%) Oracle
2 72 (14.88%) WSO2
3 61 (12.60%) SAP
4 22 (4.55%) Microsoft
5 10 (2.07%) Adobe
6 9 (1.86%) IBM
6 9 (1.86%) Xamarin
7 8 (1.65%) VMware
8 7 (1.45%) Google
9 5 (1.03%) Atlassian
9 5 (1.03%) Omniture
10 4 (0.83%) Cloudera
10 4 (0.83%) Telerik
11 3 (0.62%) FatWire
11 3 (0.62%) webMethods
12 2 (0.41%) CA Agile Central
12 2 (0.41%) Sun
13 1 (0.21%) HP
13 1 (0.21%) Mapbox
13 1 (0.21%) Red Hat
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