The following table provides summary statistics for contract job vacancies advertised in 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 29 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)
UK > England
3 months to
29 Jun 2017
Same period 2016 Same period 2015
Rank 16 30 30
Rank change year-on-year +14 0  
Contract jobs citing TDD 3419 2983 2736
As % of all contract IT jobs advertised in England 7.91% 6.05% 5.36%
As % of the Processes & Methodologies category 9.33% 7.24% 6.63%
Number of daily rates quoted 2659 2435 2090
England median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.55% +5.88%  
10th Percentile £331 £325 £313
90th Percentile £625 £619 £588
UK median daily rate £475 £450 £425
% change year-on-year +5.55% +5.88%  
Number of hourly rates quoted 18 13 7
England median hourly rate £40.75 £40.00 £45.00
Median hourly rate % change year-on-year +1.87% -11.11%  
10th Percentile £31.25 £30.40 £35.50
90th Percentile £63.75 £45.00 £50.00
UK median hourly rate £40.75 £40.00 £43.75
% change year-on-year +1.87% -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 England with a requirement for process and methodology skills.

Contract Process & Methodology Skills
England
Contract job vacancies with a requirement for process and methodology skills 36628 41177 41257
As % of all contract IT job vacancies advertised in England 84.72% 83.54% 80.87%
Number of daily rates quoted 92282 104544 94562
England median daily rate £450 £450 £415
Median daily rate % change year-on-year - +8.43%  
10th Percentile £306 £288 £275
90th Percentile £625 £625 £600
UK median daily rate £450 £438 £413
% change year-on-year +2.85% +6.06%  
Number of hourly rates quoted 2775 2674 2752
England median hourly rate £32.00 £27.50 £25.00
Median hourly rate % change year-on-year +16.36% +10.00%  
10th Percentile £12.03 £12.50 £11.29
90th Percentile £53.75 £50.78 £51.30
UK median hourly rate £32.50 £28.00 £27.50
% change year-on-year +16.07% +1.81%  

TDD
Job Vacancy Trend in England

Job postings citing TDD as a percentage of all IT jobs advertised in England.

Job vacancy trend for TDD in England

TDD
Contractor Daily Rate Trend in England

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

Contractor daily rate trend for TDD in England

TDD
Contractor Daily Rate Histogram in England

The daily rate distribution of IT jobs citing TDD in England over the 3 months to 29 June 2017.

Contractor daily rate histogram for TDD in England

TDD
Contractor Hourly Rate Trend in England

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

Contractor hourly rate trend for TDD in England

TDD
Contractor Hourly Rate Histogram in England

The hourly rate distribution of IT jobs citing TDD in England over the 3 months to 29 June 2017.

Contractor hourly rate histogram for TDD in England

TDD
Contract Job Locations in 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 England region over the 3 months to 29 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
London +7 2069 £500 +5.26% 617
South East +19 436 £425 - 180
North of England +7 388 £415 -2.35% 195
East of England +36 255 £488 +21.87% 69
Midlands +23 188 £365 -10.15% 86
Yorkshire -1 182 £423 -0.58% 82
North West -1 168 £400 - 105
West Midlands +21 118 £375 -11.76% 52
South West -2 88 £394 +5.00% 66
East Midlands +19 67 £363 -9.37% 34
North East +46 38 £350 -20.00% 8
TDD
UK

For the 6 months to 29 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 England region with a requirement for TDD.

1 4880 (77.55%) Agile Software Development
2 2719 (43.21%) Java
3 2427 (38.57%) JavaScript
4 2352 (37.37%) BDD
5 2031 (32.27%) Scrum
6 1728 (27.46%) HTML
7 1654 (26.28%) Continuous Integration
8 1624 (25.81%) CSS
9 1440 (22.88%) Git (software)
10 1428 (22.69%) C#
11 1413 (22.45%) AngularJS
12 1354 (21.52%) Test Automation
13 1332 (21.17%) .NET
14 1146 (18.21%) MVC
15 1127 (17.91%) SQL
16 1071 (17.02%) Spring
17 1063 (16.89%) Finance
18 1049 (16.67%) DevOps
19 1038 (16.49%) Jenkins
20 1008 (16.02%) Node.js
21 1003 (15.94%) HTML5
22 998 (15.86%) OO
23 973 (15.46%) REST
24 949 (15.08%) Web Services
25 927 (14.73%) Microservices
26 863 (13.71%) Kanban
27 826 (13.13%) RESTful
28 823 (13.08%) React
29 757 (12.03%) SQL Server
30 743 (11.81%) Pair Programming

TDD
Co-occurring IT Skills in 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
1 297 (4.72%) Confluence
2 236 (3.75%) Apache Spark
3 230 (3.65%) Elasticsearch
4 196 (3.11%) Apache
5 151 (2.40%) JBoss
5 151 (2.40%) Tomcat
6 150 (2.38%) Oracle SOA Suite
7 139 (2.21%) CMS
8 133 (2.11%) WebSphere
9 90 (1.43%) Mule
10 88 (1.40%) Apache Solr
11 86 (1.37%) WebLogic
12 67 (1.06%) Cloud Foundry
13 66 (1.05%) SharePoint
14 59 (0.94%) OpenStack
15 49 (0.78%) Oracle Service Bus
16 47 (0.75%) IIS
17 41 (0.65%) Sitecore CMS
18 40 (0.64%) WebSphere Application Server
19 39 (0.62%) NServiceBus
Applications
1 57 (0.91%) Photoshop
2 43 (0.68%) Microsoft Office
3 27 (0.43%) MS Visio
4 21 (0.33%) Microsoft Excel
5 12 (0.19%) Adobe Illustrator
6 7 (0.11%) Adobe Creative Suite
6 7 (0.11%) Microsoft Project
7 6 (0.095%) Spreadsheet
8 3 (0.048%) Adobe After Effects
8 3 (0.048%) Microsoft PowerPoint
9 2 (0.032%) Fireworks
9 2 (0.032%) OmniGraffle
10 1 (0.016%) GIMP
10 1 (0.016%) HipChat
Business Applications
1 144 (2.29%) SAP Oil and Gas
2 53 (0.84%) Dynamics CRM
3 30 (0.48%) ION MarketView
3 30 (0.48%) Payment Gateway
4 22 (0.35%) SAP Hybris
5 16 (0.25%) Dynamics AX
6 14 (0.22%) Magento
7 5 (0.079%) Eloqua
8 4 (0.064%) Oracle BPM
9 3 (0.048%) RMDS
9 3 (0.048%) SDL Web 8
10 2 (0.032%) Endur
10 2 (0.032%) FastStats
10 2 (0.032%) Oracle CRM
10 2 (0.032%) Oracle ERP
10 2 (0.032%) Siebel CRM
11 1 (0.016%) Actimize
11 1 (0.016%) iTrent
11 1 (0.016%) Oracle EBS R12
11 1 (0.016%) Pega PRPC
Cloud Services
1 722 (11.47%) Amazon AWS
2 466 (7.41%) Microsoft Azure
3 258 (4.10%) GitHub
4 100 (1.59%) PaaS
5 77 (1.22%) Amazon EC2
6 67 (1.06%) IaaS
7 65 (1.03%) AWS Lambda
8 63 (1.00%) SaaS
9 50 (0.79%) AWS CloudFormation
10 37 (0.59%) Cloud Computing
11 29 (0.46%) Amazon S3
12 27 (0.43%) Heroku
13 26 (0.41%) Google Cloud Platform
14 23 (0.37%) Amazon SQS
15 21 (0.33%) Slack
16 18 (0.29%) OpenShift
17 14 (0.22%) Datadog
17 14 (0.22%) Google Play
18 11 (0.17%) Google Analytics
19 10 (0.16%) Bluemix
Communications & Networking
1 258 (4.10%) HTTP
2 101 (1.60%) SSL
3 96 (1.53%) Internet
4 66 (1.05%) TCP/IP
5 32 (0.51%) Kerberos
6 30 (0.48%) LDAP
7 27 (0.43%) DNS
8 19 (0.30%) Intranet
9 18 (0.29%) Network Security
10 15 (0.24%) AMQP
11 14 (0.22%) Firewall
12 9 (0.14%) Skype
13 8 (0.13%) DVB
13 8 (0.13%) HTTPS
13 8 (0.13%) SMS
14 7 (0.11%) Extranet
14 7 (0.11%) IP Telephony
15 6 (0.095%) MQTT
15 6 (0.095%) WAN
16 5 (0.079%) Bluetooth
Database & Business Intelligence
1 757 (12.03%) SQL Server
2 648 (10.30%) NoSQL
3 525 (8.34%) MongoDB
4 461 (7.33%) MySQL
5 400 (6.36%) Relational Database
6 341 (5.42%) Big Data
7 326 (5.18%) PostgreSQL
8 303 (4.81%) Hadoop
9 218 (3.46%) Apache Cassandra
10 122 (1.94%) RDBMS
11 117 (1.86%) HBase
12 99 (1.57%) SQL Server 2008
13 92 (1.46%) Redis
13 92 (1.46%) SQL Server 2012
14 81 (1.29%) SQL Server Integration Services
15 77 (1.22%) Oracle Database
16 64 (1.02%) Amazon DynamoDB
17 54 (0.86%) Apache Hive
18 44 (0.70%) SQL Server Reporting Services
19 41 (0.65%) SQL Server 2016
Development Applications
1 1440 (22.88%) Git (software)
2 1038 (16.49%) Jenkins
3 649 (10.31%) JIRA
4 542 (8.61%) Cucumber
5 532 (8.45%) Selenium
6 527 (8.37%) JUnit
7 466 (7.41%) Maven
8 302 (4.80%) Subversion
9 295 (4.69%) TeamCity
10 278 (4.42%) Jasmine
11 277 (4.40%) Mockito
12 263 (4.18%) Team Foundation Server
13 254 (4.04%) Gradle
14 242 (3.85%) gulp
15 226 (3.59%) Grunt
16 203 (3.23%) WebDriver
17 189 (3.00%) Mocha
18 166 (2.64%) NUnit
18 166 (2.64%) webpack
19 158 (2.51%) SpecFlow
General
1 1063 (16.89%) Finance
2 615 (9.77%) Banking
3 244 (3.88%) Retail
4 234 (3.72%) Front Office
5 214 (3.40%) Marketing
6 195 (3.10%) Telecoms
7 194 (3.08%) Investment Banking
8 161 (2.56%) Manufacturing
9 149 (2.37%) Electronics
10 136 (2.16%) Games
11 65 (1.03%) Publishing
12 64 (1.02%) Back Office
13 43 (0.68%) Advertising
14 30 (0.48%) Automotive
15 28 (0.44%) Legal
16 27 (0.43%) Financial Institution
17 21 (0.33%) Corporate Banking
18 20 (0.32%) Retail Banking
19 13 (0.21%) Law
20 12 (0.19%) Billing
Job Titles
1 4809 (76.42%) Developer
2 1460 (23.20%) Java Developer
3 773 (12.28%) .NET Developer
4 760 (12.08%) Senior Developer
5 626 (9.95%) C# Developer
6 577 (9.17%) JavaScript Developer
7 533 (8.47%) Agile Developer
8 387 (6.15%) Front End Developer (Client-Side Developer)
9 385 (6.12%) Full Stack Developer
10 366 (5.82%) C# .NET Developer
11 318 (5.05%) Angular Developer
12 286 (4.54%) Senior Java Developer
13 261 (4.15%) Agile Java Developer
14 243 (3.86%) Node.js Developer
15 227 (3.61%) Scala Developer
16 200 (3.18%) HTML Developer
17 190 (3.02%) Architect
18 181 (2.88%) Analyst
19 175 (2.78%) Tester
20 167 (2.65%) Software Developer
Libraries, Frameworks & Software Standards
1 1728 (27.46%) HTML
2 1624 (25.81%) CSS
3 1413 (22.45%) AngularJS
4 1332 (21.17%) .NET
5 1071 (17.02%) Spring
6 1008 (16.02%) Node.js
7 1003 (15.94%) HTML5
8 973 (15.46%) REST
9 949 (15.08%) Web Services
10 826 (13.13%) RESTful
11 823 (13.08%) React
12 674 (10.71%) JSON
13 648 (10.30%) CSS3
14 616 (9.79%) XML
15 603 (9.58%) ASP.NET
16 550 (8.74%) jQuery
17 465 (7.39%) SOAP
18 391 (6.21%) ASP.NET MVC
19 387 (6.15%) Hibernate
20 381 (6.05%) ASP.NET Web API
Miscellaneous
1 514 (8.17%) Greenfield Project
2 375 (5.96%) User Experience
3 321 (5.10%) Mobile App
4 197 (3.13%) Analytical Skills
5 183 (2.91%) Computer Science
6 142 (2.26%) Fintech
7 140 (2.22%) Enterprise Software
8 136 (2.16%) Algorithms
9 105 (1.67%) Foreign Exchange (FX)
10 99 (1.57%) Derivative
11 96 (1.53%) Data Structures
12 92 (1.46%) Fixed Income
13 72 (1.14%) Virtual Team
14 65 (1.03%) iPad
14 65 (1.03%) Public Cloud
15 54 (0.86%) iPhone
16 50 (0.79%) Client/Server
16 50 (0.79%) Equities
17 39 (0.62%) Animation
17 39 (0.62%) Blog
Operating Systems
1 728 (11.57%) Linux
2 345 (5.48%) Unix
3 271 (4.31%) Windows
4 252 (4.00%) Android
5 244 (3.88%) Apple iOS
6 113 (1.80%) Mac OS X
7 83 (1.32%) Red Hat Enterprise Linux
8 27 (0.43%) Solaris
9 25 (0.40%) Windows Server
10 24 (0.38%) Ubuntu
11 16 (0.25%) CoreOS
11 16 (0.25%) HPUX
12 13 (0.21%) CentOS
13 10 (0.16%) VMS
14 5 (0.079%) Windows Server 2012
15 4 (0.064%) AIX
15 4 (0.064%) Windows Server 2008
16 3 (0.048%) Embedded Linux
16 3 (0.048%) Windows 10
17 2 (0.032%) Mac OS
Processes & Methodologies
1 4880 (77.55%) Agile Software Development
2 2352 (37.37%) BDD
3 2031 (32.27%) Scrum
4 1654 (26.28%) Continuous Integration
5 1354 (21.52%) Test Automation
6 1146 (18.21%) MVC
7 1049 (16.67%) DevOps
8 998 (15.86%) OO
9 927 (14.73%) Microservices
10 863 (13.71%) Kanban
11 743 (11.81%) Pair Programming
12 717 (11.39%) Software Engineering
13 679 (10.79%) E-Commerce
14 612 (9.73%) Front End Development
15 580 (9.22%) SOA
16 564 (8.96%) Unit Testing
17 526 (8.36%) Open Source
18 483 (7.68%) Continuous Delivery
19 478 (7.60%) Web Development
20 395 (6.28%) Mentoring
Programming Languages
1 2719 (43.21%) Java
2 2427 (38.57%) JavaScript
3 1428 (22.69%) C#
4 1127 (17.91%) SQL
5 652 (10.36%) Python
6 578 (9.18%) Scala
7 432 (6.86%) Ruby
8 223 (3.54%) ES6
9 190 (3.02%) PHP
10 182 (2.89%) C++
11 161 (2.56%) Groovy
12 160 (2.54%) TypeScript
13 155 (2.46%) Apple Swift
14 144 (2.29%) T-SQL
15 126 (2.00%) Shell Script
16 122 (1.94%) Objective-C
17 104 (1.65%) Go
18 98 (1.56%) Perl
19 93 (1.48%) C
20 78 (1.24%) PL/SQL
Qualifications
1 275 (4.37%) Degree
2 270 (4.29%) Security Cleared
3 175 (2.78%) SC Cleared
4 85 (1.35%) Computer Science Degree
5 55 (0.87%) BPSS Clearance
6 41 (0.65%) ISEB
7 37 (0.59%) DV Cleared
8 33 (0.52%) ISTQB
9 14 (0.22%) CTC Cleared
10 12 (0.19%) BC Cleared
11 11 (0.17%) Sun Certification
12 10 (0.16%) DBS Check
13 8 (0.13%) ISTQB Foundation Certification
13 8 (0.13%) Master's Degree
13 8 (0.13%) Numerate Degree
13 8 (0.13%) PMI Certification
13 8 (0.13%) RHCE
13 8 (0.13%) RHCSA
14 6 (0.095%) PMP
14 6 (0.095%) PRINCE2 Practitioner
Quality Assurance & Compliance
1 489 (7.77%) QA
2 39 (0.62%) MiFID
3 35 (0.56%) WCAG
4 22 (0.35%) Data Quality
4 22 (0.35%) Disclosure Scotland
5 15 (0.24%) EMIR
6 13 (0.21%) Dodd-Frank
7 10 (0.16%) SLA
8 8 (0.13%) FATCA
9 5 (0.079%) PCI DSS
9 5 (0.079%) WAI
10 2 (0.032%) GxP
10 2 (0.032%) IFRS
10 2 (0.032%) IFRS 9
10 2 (0.032%) ISO 22301
11 1 (0.016%) GCP
11 1 (0.016%) PMO
System Software
1 534 (8.49%) Docker
2 62 (0.99%) HDFS
3 49 (0.78%) Apache ZooKeeper
4 28 (0.44%) Apache Flume
5 19 (0.30%) VMware Infrastructure
6 17 (0.27%) Active Directory
7 8 (0.13%) Varnish
7 8 (0.13%) Virtual Machines
8 7 (0.11%) Firmware
8 7 (0.11%) LXC
9 6 (0.095%) vCloud
9 6 (0.095%) vSphere
10 2 (0.032%) NFS
10 2 (0.032%) zsh
11 1 (0.016%) iptables
11 1 (0.016%) VirtualBox
11 1 (0.016%) Xen
Systems Management
1 250 (3.97%) Puppet
2 245 (3.89%) Ansible
3 228 (3.62%) Opscode Chef
4 134 (2.13%) Kubernetes
5 96 (1.53%) Terraform
6 39 (0.62%) logstash
7 35 (0.56%) Kibana
8 23 (0.37%) Grafana
9 22 (0.35%) Hadoop YARN
9 22 (0.35%) ZABBIX
10 20 (0.32%) Mesos
10 20 (0.32%) Salt
11 19 (0.30%) Nagios
12 18 (0.29%) Graphite
13 15 (0.24%) Oozie
14 10 (0.16%) Control-M
15 9 (0.14%) HP Fortify
15 9 (0.14%) Prometheus
16 7 (0.11%) Consul
16 7 (0.11%) HAProxy
Vendors
1 482 (7.66%) Oracle
2 379 (6.02%) Microsoft
3 176 (2.80%) SAP
4 106 (1.68%) WSO2
5 92 (1.46%) Google
6 79 (1.26%) IBM
7 78 (1.24%) Sitecore
8 60 (0.95%) Red Hat
9 54 (0.86%) Adobe
10 51 (0.81%) Splunk
11 49 (0.78%) hybris
12 47 (0.75%) Xamarin
13 44 (0.70%) New Relic
14 36 (0.57%) Perforce
15 33 (0.52%) MuleSoft
16 32 (0.51%) Apple
16 32 (0.51%) ATG
16 32 (0.51%) DevExpress
16 32 (0.51%) ION Trading
17 31 (0.49%) Cloudera
Reading, Berkshire
Oliver Bernard
Rate: £550 - £600 per day
Posted: 1 hour ago
Central London / West End
Reed Professional Services
Posted: 3 hours ago
Nottingham, Nottinghamshire
Elevate Direct
Rate: From £350 to £375 per day
Posted: 3 hours ago
Brentwood, Essex
Square One Resources
Rate: Up to £275 per day 6 Month initial duration
Posted: 4 hours ago
West London
Source Technology
Rate: From £500 to £600 per day
Posted: 7 hours ago
City, London
Hays Finance Technology
Rate: £500.00 - £575.00 per day
Posted: 6 hours ago
Cambridge, Cambridgeshire
Empiric
Rate: Highly competitive
Posted: 4 hours ago
Leeds, West Yorkshire
4it Recruitment Ltd
Rate: From £400 to £480 per day 3 Months initially
Posted: 5 hours ago
Nottingham, Nottinghamshire
Elevate Direct
Rate: Negotiable
Posted: 5 hours ago
City, London
Austin Fraser
Rate: £0.00 per annum
Posted: 5 hours ago
London
Oliver Bernard
Rate: £400 - £450 per day
Posted: 23 hours ago
Central London / West End
Data Idols
Rate: From £350 to £450 per day
Posted: Yesterday
Nottingham, Nottinghamshire
Elevate Direct
Rate: From £400 to £425 per day
Posted: 3 hours ago
London
Arrows Group
Rate: £0.00 per annum
Posted: Yesterday
West London
ComputAppoint
Rate: £400 - £420 per day
Posted: 21 hours ago
London
Talent Point Ltd
Rate: £500 - £525 per day + extensions
Posted: 23 hours ago
London
Square One Resources
Rate: From £450 to £500 per day for 6 months
Posted: 2 hours ago
London
Digital Skills
Rate: From £425 to £475 per day
Posted: 22 hours ago
London
Oliver Bernard
Rate: £450 - £550 per day
Posted: Yesterday
Leeds, West Yorkshire
Search Consultancy
Posted: 2 days ago
Central London / West End
X4 Group
Rate: £280 - 320 per day
Posted: Yesterday
London
Oliver Bernard
Rate: £500 - £600 per day
Posted: 23 hours ago
London
Oliver Bernard
Rate: £600 - £700 per day
Posted: 23 hours ago
Milton Keynes, Buckinghamshire
Oliver Bernard
Rate: £350 - £375 per day
Posted: 2 days ago
Oxford, Oxfordshire
Red10
Rate: £475 - £525 per day
Posted: Yesterday
London
Oliver Bernard
Rate: £550 - £600 per day
Posted: 21 hours ago
Leeds, West Yorkshire
Experis Ltd
Posted: 2 days ago
West Sussex
X4 Group
Rate: £280 - 320 per day
Posted: Yesterday
London
Talent Point Ltd
Rate: £500 - £525 per day + extensions
Posted: 23 hours ago
Central London / West End
Data Idols
Rate: From £400 to £500 per day
Posted: Yesterday