Period
to 20 November 2017

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 6 months to 20 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.

Test-Driven Development (TDD)
UK > England
6 months to
20 Nov 2017
Same period 2016 Same period 2015
Rank 13 27 29
Rank change year-on-year +14 +2 +5
Contract jobs citing TDD 7510 6143 6054
As % of all contract IT jobs advertised in England 7.99% 6.36% 5.79%
As % of the Processes & Methodologies category 9.43% 7.55% 7.07%
Number of daily rates quoted 5893 4933 4749
England median daily rate £500 £463 £440
Median daily rate % change year-on-year +8.11% +5.11% +3.53%
10th Percentile £350 £325 £313
90th Percentile £625 £600 £600
UK median daily rate £488 £450 £438
% change year-on-year +8.33% +2.86% +2.94%
Number of hourly rates quoted 56 25 22
England median hourly rate £45.00 £42.50 £40.00
Median hourly rate % change year-on-year +5.88% +6.25% +14.29%
10th Percentile £36.63 £31.51 £27.85
90th Percentile £63.75 £49.00 £50.00
UK median hourly rate £45.00 £42.50 £40.00
% change year-on-year +5.88% +6.25% -

TDD 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 England with a requirement for process or methodology skills.

All Process and Methodology Skills
England
Contract vacancies with a requirement for process or methodology skills 79631 81325 85624
As % of all contract IT jobs advertised in England 84.67% 84.17% 81.94%
Number of daily rates quoted 53568 54246 56450
England median daily rate £450 £425 £423
Median daily rate % change year-on-year +5.88% +0.59% +5.63%
10th Percentile £288 £265 £263
90th Percentile £638 £613 £600
UK median daily rate £450 £425 £413
% change year-on-year +5.88% +3.03% +3.13%
Number of hourly rates quoted 1862 2110 2524
England median hourly rate £24.00 £24.42 £22.50
Median hourly rate % change year-on-year -1.72% +8.53% +18.42%
10th Percentile £11.35 £11.50 £11.50
90th Percentile £50.00 £48.75 £47.50
UK median hourly rate £23.63 £24.00 £22.50
% change year-on-year -1.56% +6.67% +18.42%

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 6 months to 20 November 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 6 months to 20 November 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 6 months to 20 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
London +6 4710 £513 +5.13% 666
South East +15 956 £425 -3.52% 179
North of England 0 732 £413 -2.94% 208
East of England +18 515 £494 +3.95% 90
Midlands +25 413 £390 -2.50% 71
North West -2 357 £400 -5.88% 108
Yorkshire -3 307 £425 - 90
West Midlands +29 241 £400 -1.60% 31
South West -11 199 £400 +6.67% 74
East Midlands +22 171 £389 +1.63% 40
North East +10 78 £399 -6.18% 10
TDD
UK

For the 6 months to 20 November 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 5760 (76.70%) Agile Software Development
2 3285 (43.74%) Java
3 3052 (40.64%) BDD
4 2746 (36.56%) JavaScript
5 2403 (32.00%) Scrum
6 2138 (28.47%) Continuous Integration
7 1954 (26.02%) HTML
8 1786 (23.78%) CSS
9 1733 (23.08%) Git (software)
10 1639 (21.82%) C#
11 1585 (21.11%) .NET
12 1567 (20.87%) AngularJS
13 1511 (20.12%) Test Automation
14 1395 (18.58%) Finance
15 1355 (18.04%) MVC
16 1349 (17.96%) Microservices
17 1300 (17.31%) Spring
18 1297 (17.27%) Web Services
19 1273 (16.95%) SQL
20 1272 (16.94%) REST
21 1262 (16.80%) Jenkins
22 1236 (16.46%) Node.js
23 1211 (16.13%) RESTful
24 1172 (15.61%) Amazon AWS
25 1145 (15.25%) HTML5
26 1115 (14.85%) React
27 1071 (14.26%) Kanban
28 1069 (14.23%) OO
29 1061 (14.13%) DevOps
30 973 (12.96%) 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
1 472 (6.28%) Confluence
2 343 (4.57%) Apache Spark
3 280 (3.73%) Elasticsearch
4 241 (3.21%) Apache
5 239 (3.18%) Tomcat
6 209 (2.78%) CMS
7 179 (2.38%) Oracle SOA Suite
8 155 (2.06%) WebSphere
9 151 (2.01%) JBoss
10 136 (1.81%) Apache Solr
11 134 (1.78%) WebLogic
12 127 (1.69%) Mule
13 109 (1.45%) OpenStack
14 91 (1.21%) Cloud Foundry
15 77 (1.03%) Oracle Service Bus
16 56 (0.75%) Sitecore CMS
17 54 (0.72%) EPiServer
18 51 (0.68%) IIS
19 49 (0.65%) NServiceBus
20 46 (0.61%) Drupal
Applications
1 41 (0.55%) Photoshop
2 26 (0.35%) Microsoft Excel
3 22 (0.29%) Microsoft Office
4 19 (0.25%) MS Visio
5 10 (0.13%) Adobe Illustrator
6 6 (0.080%) Adobe Creative Suite
7 4 (0.053%) Adobe After Effects
7 4 (0.053%) Microsoft Project
7 4 (0.053%) Spreadsheet
8 3 (0.040%) Fireworks
9 2 (0.027%) InVision
10 1 (0.013%) GIMP
10 1 (0.013%) InfoPath
10 1 (0.013%) Microsoft PowerPoint
Business Applications
1 29 (0.39%) Payment Gateway
2 26 (0.35%) Dynamics CRM
3 24 (0.32%) ION MarketView
4 21 (0.28%) Magento
5 20 (0.27%) SAP Hybris
6 10 (0.13%) Bloomberg TOMS
7 9 (0.12%) RMDS
8 6 (0.080%) Oracle Retail
9 5 (0.067%) Dynamics AX
9 5 (0.067%) Endur
10 4 (0.053%) Eloqua
10 4 (0.053%) Oracle Financials
10 4 (0.053%) PeopleSoft Financials
10 4 (0.053%) SunGard GMI
11 3 (0.040%) MetaTrader
11 3 (0.040%) Oracle BPM
12 2 (0.027%) Oracle Cash Management
12 2 (0.027%) Oracle ERP
12 2 (0.027%) Oracle SCM
12 2 (0.027%) Salesforce.com CRM
Cloud Services
1 1172 (15.61%) Amazon AWS
2 711 (9.47%) Microsoft Azure
3 339 (4.51%) GitHub
4 172 (2.29%) npm
5 111 (1.48%) Serverless
6 110 (1.46%) PaaS
7 97 (1.29%) Amazon EC2
8 72 (0.96%) Amazon S3
9 70 (0.93%) Google Cloud Platform
10 59 (0.79%) AWS Lambda
11 54 (0.72%) Cloud Computing
12 51 (0.68%) Slack
13 48 (0.64%) IaaS
14 45 (0.60%) SaaS
15 41 (0.55%) OpenShift
16 35 (0.47%) AWS CloudFormation
17 32 (0.43%) Amazon SQS
18 31 (0.41%) Heroku
19 26 (0.35%) Yarn
20 22 (0.29%) Google Play
Communications & Networking
1 233 (3.10%) HTTP
2 99 (1.32%) Internet
3 81 (1.08%) Kerberos
4 75 (1.00%) SSL
4 75 (1.00%) TCP/IP
5 49 (0.65%) SMS
6 28 (0.37%) Bluetooth
7 23 (0.31%) LDAP
8 22 (0.29%) DNS
9 17 (0.23%) AMQP
10 13 (0.17%) Network Security
11 11 (0.15%) FIX Connectivity
12 8 (0.11%) 3GPP
12 8 (0.11%) Intranet
12 8 (0.11%) Wireless
13 7 (0.093%) LTE
14 6 (0.080%) Firewall
14 6 (0.080%) FTP
14 6 (0.080%) SSH
14 6 (0.080%) Wi-Fi
Database & Business Intelligence
1 954 (12.70%) NoSQL
2 905 (12.05%) SQL Server
3 622 (8.28%) MongoDB
4 567 (7.55%) MySQL
5 520 (6.92%) PostgreSQL
6 489 (6.51%) Big Data
7 485 (6.46%) Hadoop
8 426 (5.67%) Relational Database
9 241 (3.21%) Apache Cassandra
10 226 (3.01%) HBase
11 182 (2.42%) RDBMS
12 107 (1.42%) Apache Hive
13 101 (1.34%) Redis
14 88 (1.17%) SQL Server 2012
15 81 (1.08%) SQL Server Integration Services
16 72 (0.96%) Oracle Database
17 68 (0.91%) Amazon DynamoDB
18 66 (0.88%) SQL Server 2014
19 65 (0.87%) SQL Server Reporting Services
20 59 (0.79%) SQL Server 2008
Development Applications
1 1733 (23.08%) Git (software)
2 1262 (16.80%) Jenkins
3 859 (11.44%) JIRA
4 662 (8.81%) Cucumber
5 588 (7.83%) Maven
6 574 (7.64%) Selenium
7 545 (7.26%) JUnit
8 352 (4.69%) TeamCity
9 307 (4.09%) Jasmine
10 303 (4.03%) Mockito
11 272 (3.62%) Gradle
12 267 (3.56%) Subversion
13 256 (3.41%) gulp
14 245 (3.26%) NUnit
15 236 (3.14%) webpack
16 220 (2.93%) Grunt
17 211 (2.81%) Mocha
18 188 (2.50%) IntelliJ
19 187 (2.49%) Team Foundation Server
20 186 (2.48%) WebDriver
General
1 1395 (18.58%) Finance
2 837 (11.15%) Banking
3 288 (3.83%) Marketing
4 277 (3.69%) Retail
5 264 (3.52%) Telecoms
6 257 (3.42%) Investment Banking
7 249 (3.32%) Front Office
8 210 (2.80%) Manufacturing
9 194 (2.58%) Electronics
10 132 (1.76%) Publishing
11 122 (1.62%) Games
12 86 (1.15%) Financial Institution
13 75 (1.00%) Retail Banking
14 66 (0.88%) Law
15 65 (0.87%) Advertising
16 59 (0.79%) Back Office
17 45 (0.60%) Automotive
18 41 (0.55%) Legal
19 16 (0.21%) Corporate Banking
20 15 (0.20%) Billing
Job Titles
1 5759 (76.68%) Developer
2 1770 (23.57%) Java Developer
3 1006 (13.40%) Senior Developer
4 944 (12.57%) .NET Developer
5 707 (9.41%) C# Developer
6 679 (9.04%) JavaScript Developer
7 537 (7.15%) Agile Developer
8 503 (6.70%) Full Stack Developer
9 409 (5.45%) C# .NET Developer
10 384 (5.11%) Front End Developer (Client-Side Developer)
11 337 (4.49%) Senior Java Developer
12 311 (4.14%) Angular Developer
13 279 (3.72%) Node.js Developer
14 266 (3.54%) Scala Developer
15 226 (3.01%) Agile Java Developer
16 225 (3.00%) Architect
17 224 (2.98%) HTML Developer
18 199 (2.65%) Analyst
19 197 (2.62%) Python Developer
20 196 (2.61%) Lead Developer
Libraries, Frameworks & Software Standards
1 1954 (26.02%) HTML
2 1786 (23.78%) CSS
3 1585 (21.11%) .NET
4 1567 (20.87%) AngularJS
5 1300 (17.31%) Spring
6 1297 (17.27%) Web Services
7 1272 (16.94%) REST
8 1236 (16.46%) Node.js
9 1211 (16.13%) RESTful
10 1145 (15.25%) HTML5
11 1115 (14.85%) React
12 719 (9.57%) CSS3
13 697 (9.28%) ASP.NET
14 686 (9.13%) JSON
15 605 (8.06%) ASP.NET Web API
16 579 (7.71%) XML
17 555 (7.39%) Spring Boot
18 551 (7.34%) SOAP
19 486 (6.47%) Hibernate
20 485 (6.46%) jQuery
Miscellaneous
1 578 (7.70%) Greenfield Project
2 445 (5.93%) User Experience
3 321 (4.27%) Mobile App
4 252 (3.36%) Computer Science
5 209 (2.78%) Analytical Skills
6 205 (2.73%) Enterprise Software
7 196 (2.61%) Algorithms
8 172 (2.29%) Fintech
9 140 (1.86%) Data Structures
10 129 (1.72%) Derivative
11 128 (1.70%) Foreign Exchange (FX)
12 110 (1.46%) Virtual Team
13 89 (1.19%) iPad
14 80 (1.07%) N-Tier
15 79 (1.05%) Fixed Income
16 74 (0.99%) Equities
17 63 (0.84%) Digital Media
18 59 (0.79%) iPhone
19 58 (0.77%) Public Cloud
20 54 (0.72%) Linux Command Line
Operating Systems
1 766 (10.20%) Linux
2 353 (4.70%) Unix
3 306 (4.07%) Apple iOS
4 293 (3.90%) Windows
5 286 (3.81%) Android
6 124 (1.65%) Red Hat Enterprise Linux
7 70 (0.93%) Mac OS X
8 33 (0.44%) Windows Server
9 30 (0.40%) Solaris
10 20 (0.27%) HPUX
11 15 (0.20%) Ubuntu
12 14 (0.19%) CoreOS
13 12 (0.16%) CentOS
14 11 (0.15%) Mac OS
15 9 (0.12%) Oracle Linux
16 7 (0.093%) AIX
17 6 (0.080%) VMS
18 4 (0.053%) Embedded Linux
18 4 (0.053%) Windows Mobile
19 3 (0.040%) Windows Server 2008
Processes & Methodologies
1 5760 (76.70%) Agile Software Development
2 3052 (40.64%) BDD
3 2403 (32.00%) Scrum
4 2138 (28.47%) Continuous Integration
5 1511 (20.12%) Test Automation
6 1355 (18.04%) MVC
7 1349 (17.96%) Microservices
8 1071 (14.26%) Kanban
9 1069 (14.23%) OO
10 1061 (14.13%) DevOps
11 973 (12.96%) Pair Programming
12 894 (11.90%) Software Engineering
13 723 (9.63%) Unit Testing
14 657 (8.75%) E-Commerce
15 637 (8.48%) SOA
16 621 (8.27%) Continuous Delivery
17 598 (7.96%) Front End Development
18 592 (7.88%) Open Source
19 511 (6.80%) Web Development
20 503 (6.70%) SOLID
Programming Languages
1 3285 (43.74%) Java
2 2746 (36.56%) JavaScript
3 1639 (21.82%) C#
4 1273 (16.95%) SQL
5 733 (9.76%) Python
6 622 (8.28%) Scala
7 449 (5.98%) Ruby
8 359 (4.78%) ES6
9 220 (2.93%) TypeScript
10 209 (2.78%) Apple Swift
11 207 (2.76%) Groovy
12 195 (2.60%) PHP
13 174 (2.32%) T-SQL
14 172 (2.29%) Objective-C
15 167 (2.22%) C++
16 142 (1.89%) Go
17 124 (1.65%) Shell Script
18 98 (1.30%) C
19 93 (1.24%) XPath
20 69 (0.92%) PowerShell
Qualifications
1 363 (4.83%) Degree
2 322 (4.29%) Security Cleared
3 226 (3.01%) SC Cleared
4 147 (1.96%) Computer Science Degree
5 39 (0.52%) ISEB
6 35 (0.47%) Master's Degree
7 33 (0.44%) ISTQB
8 25 (0.33%) BPSS Clearance
9 24 (0.32%) PMI Certification
10 19 (0.25%) PhD
11 18 (0.24%) PMP
12 17 (0.23%) DV Cleared
13 14 (0.19%) CTC Cleared
14 12 (0.16%) DBS Check
15 10 (0.13%) PRINCE2 Practitioner
16 8 (0.11%) Microsoft Certification
17 7 (0.093%) ISTQB Foundation Certification
18 6 (0.080%) Sun Certification
19 4 (0.053%) CISSP
19 4 (0.053%) RHCE
Quality Assurance & Compliance
1 509 (6.78%) QA
2 49 (0.65%) MiFID
3 39 (0.52%) WCAG
4 21 (0.28%) Data Quality
5 18 (0.24%) Disclosure Scotland
6 14 (0.19%) GCP
6 14 (0.19%) PCI DSS
7 13 (0.17%) WAI
8 12 (0.16%) GDPR
9 10 (0.13%) EMIR
10 6 (0.080%) SLA
11 5 (0.067%) ISO/IEC 27001
12 4 (0.053%) Dodd-Frank
12 4 (0.053%) PSD2
13 3 (0.040%) Cyber Essentials
14 2 (0.027%) ISO 9001
14 2 (0.027%) PMO
15 1 (0.013%) FATCA
15 1 (0.013%) ISO 14001
15 1 (0.013%) ISO/IEC 20000
System Software
1 854 (11.37%) Docker
2 131 (1.74%) HDFS
3 95 (1.26%) Apache ZooKeeper
4 32 (0.43%) Active Directory
5 16 (0.21%) Apache Flume
5 16 (0.21%) VMware Infrastructure
6 12 (0.16%) Virtual Machines
7 8 (0.11%) LXC
8 6 (0.080%) NFS
8 6 (0.080%) Varnish
8 6 (0.080%) vSphere
9 4 (0.053%) vCloud
10 3 (0.040%) Firmware
11 2 (0.027%) OpenAM
11 2 (0.027%) OpenDJ
11 2 (0.027%) OpenIDM
12 1 (0.013%) Virtual Servers
12 1 (0.013%) VirtualBox
12 1 (0.013%) VMware ESXi
12 1 (0.013%) zsh
Systems Management
1 407 (5.42%) Ansible
2 339 (4.51%) Puppet
3 302 (4.02%) Opscode Chef
4 262 (3.49%) Kubernetes
5 156 (2.08%) Terraform
6 70 (0.93%) Kibana
7 64 (0.85%) Grafana
8 61 (0.81%) logstash
9 46 (0.61%) Mesos
10 39 (0.52%) Hadoop YARN
11 30 (0.40%) Business Desktop Deployment
12 26 (0.35%) Cobbler
13 22 (0.29%) ZABBIX
14 17 (0.23%) ITRS Geneos
15 16 (0.21%) Oozie
16 14 (0.19%) Nagios
17 12 (0.16%) Packer
18 11 (0.15%) Control-M
19 10 (0.13%) Consul
19 10 (0.13%) Rancher
Vendors
1 682 (9.08%) Oracle
2 461 (6.14%) Microsoft
3 207 (2.76%) SAP
4 131 (1.74%) Google
5 119 (1.58%) WSO2
6 95 (1.26%) Splunk
7 91 (1.21%) IBM
8 86 (1.15%) Sitecore
9 84 (1.12%) Red Hat
10 81 (1.08%) Apple
11 73 (0.97%) AppDynamics
12 70 (0.93%) Adobe
13 58 (0.77%) Cloudera
14 54 (0.72%) Salesforce.com
14 54 (0.72%) Xamarin
15 50 (0.67%) Atlassian
16 49 (0.65%) New Relic
17 43 (0.57%) Perforce
18 42 (0.56%) HP
19 41 (0.55%) hybris