Period
to 16 January 2018

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 16 January 2018 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
16 Jan 2018
Same period 2017 Same period 2016
Rank 13 23 29
Rank change year-on-year +10 +6 +5
Contract jobs citing TDD 7,407 5,967 5,696
As % of all contract IT jobs advertised in England 8.02% 6.65% 5.80%
As % of the Processes & Methodologies category 9.48% 7.91% 7.01%
Number of daily rates quoted 5,906 4,721 4,468
England median daily rate £500 £463 £450
Median daily rate % change year-on-year +8.11% +2.78% +5.88%
10th Percentile £350 £325 £313
90th Percentile £625 £600 £600
UK median daily rate £488 £460 £450
% change year-on-year +5.98% +2.22% +5.88%
Number of hourly rates quoted 48 19 27
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 £35.65 £35.95 £35.95
90th Percentile £63.75 £51.50 £52.50
UK median hourly rate £45.00 £42.50 £40.00
% change year-on-year +5.88% +6.25% +6.67%

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 78,092 75,472 81,223
As % of all contract IT jobs advertised in England 84.58% 84.10% 82.66%
Number of daily rates quoted 52,823 50,375 53,433
England median daily rate £450 £433 £425
Median daily rate % change year-on-year +4.05% +1.76% +6.25%
10th Percentile £293 £269 £263
90th Percentile £638 £614 £600
UK median daily rate £450 £425 £425
% change year-on-year +5.88% - +6.25%
Number of hourly rates quoted 1,787 2,042 2,478
England median hourly rate £24.00 £25.00 £23.00
Median hourly rate % change year-on-year -4.00% +8.70% +15.00%
10th Percentile £11.43 £11.25 £11.25
90th Percentile £50.00 £48.75 £48.88
UK median hourly rate £23.75 £24.43 £23.43
% change year-on-year -2.78% +4.29% +17.13%

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 16 January 2018.

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 16 January 2018.

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 16 January 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
London +5 4,625 £515 +5.64% 1,148
South East +11 983 £425 -1.73% 357
North of England +1 738 £400 -5.88% 353
East of England +5 469 £475 +2.70% 181
Midlands +21 416 £400 - 147
North West -1 358 £399 -6.18% 208
Yorkshire -1 321 £425 -2.86% 128
West Midlands +26 260 £401 +0.13% 63
South West -6 192 £415 +10.67% 153
East Midlands +22 153 £392 +4.53% 83
North East -10 71 £425 -5.56% 17
TDD
UK

For the 6 months to 16 January 2018, 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 5,672 (76.58%) Agile Software Development
2 3,250 (43.88%) Java
3 3,172 (42.82%) BDD
4 2,668 (36.02%) JavaScript
5 2,224 (30.03%) Scrum
6 2,060 (27.81%) Continuous Integration
7 1,828 (24.68%) HTML
8 1,766 (23.84%) Git (software)
9 1,752 (23.65%) C#
10 1,666 (22.49%) .NET
11 1,665 (22.48%) CSS
12 1,521 (20.53%) Test Automation
13 1,472 (19.87%) AngularJS
14 1,394 (18.82%) Microservices
15 1,376 (18.58%) MVC
16 1,362 (18.39%) Web Services
17 1,311 (17.70%) Finance
18 1,289 (17.40%) REST
19 1,287 (17.38%) Spring
20 1,275 (17.21%) Jenkins
21 1,250 (16.88%) Amazon AWS
22 1,208 (16.31%) SQL
23 1,206 (16.28%) RESTful
24 1,178 (15.90%) Node.js
25 1,067 (14.41%) React
26 1,054 (14.23%) Kanban
27 1,028 (13.88%) DevOps
28 1,002 (13.53%) HTML5
29 950 (12.83%) SQL Server
30 944 (12.74%) OO

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
1 425 (5.74%) Confluence
2 283 (3.82%) Elasticsearch
3 261 (3.52%) Apache Spark
4 250 (3.38%) Tomcat
5 210 (2.84%) Apache
6 189 (2.55%) CMS
7 170 (2.30%) WebSphere
8 146 (1.97%) WebLogic
9 142 (1.92%) Oracle SOA Suite
10 129 (1.74%) JBoss
11 113 (1.53%) Mule
12 110 (1.49%) OpenStack
13 88 (1.19%) Cloud Foundry
14 83 (1.12%) Apache Solr
15 65 (0.88%) Oracle Service Bus
16 63 (0.85%) Sitecore CMS
17 60 (0.81%) IIS
18 55 (0.74%) EPiServer
18 55 (0.74%) Jetty
19 54 (0.73%) Adobe Experience Manager
Applications
1 24 (0.32%) Microsoft Excel
2 17 (0.23%) MS Visio
3 16 (0.22%) Microsoft Office
4 12 (0.16%) Photoshop
5 6 (0.081%) Microsoft Project
6 3 (0.041%) Adobe Illustrator
6 3 (0.041%) InVision
6 3 (0.041%) Microsoft PowerPoint
7 2 (0.027%) Fireworks
7 2 (0.027%) GIMP
8 1 (0.014%) Adobe After Effects
8 1 (0.014%) Adobe Creative Suite
8 1 (0.014%) Chatbot
8 1 (0.014%) InfoPath
Business Applications
1 28 (0.38%) Dynamics CRM
2 27 (0.36%) Payment Gateway
3 22 (0.30%) Magento
4 14 (0.19%) ION MarketView
5 10 (0.14%) Bloomberg TOMS
5 10 (0.14%) SAP Hybris
6 5 (0.068%) Oracle Retail
6 5 (0.068%) RMDS
7 4 (0.054%) SunGard GMI
8 3 (0.041%) Dynamics AX
8 3 (0.041%) Endur
8 3 (0.041%) MetaTrader
8 3 (0.041%) Oracle Financials
8 3 (0.041%) PeopleSoft Financials
8 3 (0.041%) Summit
9 2 (0.027%) Oracle BPM
9 2 (0.027%) Oracle Cash Management
10 1 (0.014%) Exstream
10 1 (0.014%) Oracle EBS
10 1 (0.014%) Salesforce.com CRM
Cloud Services
1 1,250 (16.88%) Amazon AWS
2 771 (10.41%) Microsoft Azure
3 316 (4.27%) GitHub
4 170 (2.30%) npm
5 147 (1.98%) Serverless
6 132 (1.78%) Amazon EC2
7 119 (1.61%) PaaS
8 89 (1.20%) Amazon S3
9 87 (1.17%) Google Cloud Platform
10 74 (1.00%) AWS Lambda
11 70 (0.95%) Slack
12 53 (0.72%) OpenShift
13 50 (0.68%) Cloud Computing
14 47 (0.63%) Amazon SQS
15 44 (0.59%) IaaS
16 42 (0.57%) AWS CloudFormation
17 38 (0.51%) SaaS
18 30 (0.41%) Heroku
19 24 (0.32%) Google Analytics
20 22 (0.30%) Yarn
Communications & Networking
1 221 (2.98%) HTTP
2 94 (1.27%) Internet
3 81 (1.09%) TCP/IP
4 59 (0.80%) SSL
5 48 (0.65%) SMS
6 47 (0.63%) Kerberos
7 30 (0.41%) Bluetooth
8 23 (0.31%) DNS
9 20 (0.27%) AMQP
10 15 (0.20%) FIX Connectivity
10 15 (0.20%) LDAP
11 14 (0.19%) Firewall
12 10 (0.14%) FTP
13 9 (0.12%) SSH
13 9 (0.12%) Wireless
14 8 (0.11%) Intranet
15 7 (0.095%) 3GPP
15 7 (0.095%) LTE
16 5 (0.068%) Unified Communications
16 5 (0.068%) Wi-Fi
Database & Business Intelligence
1 950 (12.83%) SQL Server
2 910 (12.29%) NoSQL
3 625 (8.44%) MongoDB
4 565 (7.63%) MySQL
5 521 (7.03%) PostgreSQL
6 419 (5.66%) Relational Database
7 418 (5.64%) Hadoop
8 400 (5.40%) Big Data
9 226 (3.05%) Apache Cassandra
10 183 (2.47%) HBase
11 161 (2.17%) RDBMS
12 112 (1.51%) Redis
13 99 (1.34%) SQL Server 2012
14 90 (1.22%) Apache Hive
15 81 (1.09%) SQL Server 2014
16 69 (0.93%) Amazon DynamoDB
17 68 (0.92%) SQL Server 2016
18 65 (0.88%) SQL Server Integration Services
19 59 (0.80%) Oracle Database
20 51 (0.69%) Neo4j
Development Applications
1 1,766 (23.84%) Git (software)
2 1,275 (17.21%) Jenkins
3 774 (10.45%) JIRA
4 654 (8.83%) Cucumber
5 632 (8.53%) Maven
6 574 (7.75%) Selenium
7 499 (6.74%) JUnit
8 306 (4.13%) TeamCity
9 302 (4.08%) Gradle
10 300 (4.05%) Mockito
11 290 (3.92%) Jasmine
12 261 (3.52%) Subversion
13 256 (3.46%) webpack
14 250 (3.38%) NUnit
15 233 (3.15%) gulp
16 202 (2.73%) Mocha
17 194 (2.62%) Team Foundation Server
18 187 (2.52%) WebDriver
19 177 (2.39%) Grunt
20 154 (2.08%) IntelliJ
General
1 1,311 (17.70%) Finance
2 725 (9.79%) Banking
3 292 (3.94%) Retail
4 254 (3.43%) Marketing
5 222 (3.00%) Telecoms
6 202 (2.73%) Investment Banking
7 172 (2.32%) Front Office
8 168 (2.27%) Manufacturing
9 146 (1.97%) Electronics
10 131 (1.77%) Games
11 123 (1.66%) Publishing
12 79 (1.07%) Retail Banking
13 68 (0.92%) Financial Institution
14 65 (0.88%) Law
15 58 (0.78%) Advertising
16 53 (0.72%) Back Office
17 48 (0.65%) Automotive
18 44 (0.59%) Legal
19 12 (0.16%) Corporate Banking
20 11 (0.15%) Pharmaceutical
Job Titles
1 5,684 (76.74%) Developer
2 1,843 (24.88%) Java Developer
3 1,028 (13.88%) Senior Developer
4 949 (12.81%) .NET Developer
5 736 (9.94%) C# Developer
6 598 (8.07%) JavaScript Developer
7 505 (6.82%) Full Stack Developer
8 493 (6.66%) Agile Developer
9 403 (5.44%) C# .NET Developer
10 373 (5.04%) Front End Developer (Client-Side Developer)
11 372 (5.02%) Senior Java Developer
12 266 (3.59%) Node.js Developer
13 250 (3.38%) Scala Developer
14 248 (3.35%) Angular Developer
15 229 (3.09%) Architect
16 218 (2.94%) Agile Java Developer
17 213 (2.88%) Software Engineer
18 204 (2.75%) Lead Developer
19 193 (2.61%) Software Developer
20 190 (2.57%) Analyst
Libraries, Frameworks & Software Standards
1 1,828 (24.68%) HTML
2 1,666 (22.49%) .NET
3 1,665 (22.48%) CSS
4 1,472 (19.87%) AngularJS
5 1,362 (18.39%) Web Services
6 1,289 (17.40%) REST
7 1,287 (17.38%) Spring
8 1,206 (16.28%) RESTful
9 1,178 (15.90%) Node.js
10 1,067 (14.41%) React
11 1,002 (13.53%) HTML5
12 725 (9.79%) ASP.NET
13 675 (9.11%) ASP.NET Web API
14 648 (8.75%) JSON
15 617 (8.33%) CSS3
16 566 (7.64%) SOAP
17 555 (7.49%) XML
18 544 (7.34%) Spring Boot
19 533 (7.20%) Hibernate
20 482 (6.51%) ASP.NET MVC
Miscellaneous
1 612 (8.26%) Greenfield Project
2 421 (5.68%) User Experience
3 301 (4.06%) Mobile App
4 240 (3.24%) Computer Science
5 200 (2.70%) Enterprise Software
6 184 (2.48%) Analytical Skills
7 182 (2.46%) Fintech
8 166 (2.24%) Algorithms
9 114 (1.54%) Data Structures
10 106 (1.43%) Derivative
11 102 (1.38%) Virtual Team
12 99 (1.34%) Foreign Exchange (FX)
13 87 (1.17%) Digital Media
14 79 (1.07%) N-Tier
15 71 (0.96%) iPad
16 63 (0.85%) Linux Command Line
17 56 (0.76%) Public Cloud
17 56 (0.76%) Video on Demand
18 51 (0.69%) Fixed Income
19 50 (0.68%) Equities
Operating Systems
1 737 (9.95%) Linux
2 342 (4.62%) Unix
3 280 (3.78%) Android
3 280 (3.78%) Apple iOS
4 230 (3.11%) Windows
5 112 (1.51%) Red Hat Enterprise Linux
6 75 (1.01%) Mac OS X
7 22 (0.30%) Windows Server
8 19 (0.26%) Solaris
9 16 (0.22%) Ubuntu
10 14 (0.19%) CentOS
11 11 (0.15%) CoreOS
11 11 (0.15%) HPUX
12 10 (0.14%) Mac OS
13 8 (0.11%) Oracle Linux
14 7 (0.095%) VMS
15 6 (0.081%) Nucleus RTOS
16 4 (0.054%) Embedded Linux
16 4 (0.054%) Windows 10
17 3 (0.041%) Windows Phone
Processes & Methodologies
1 5,672 (76.58%) Agile Software Development
2 3,172 (42.82%) BDD
3 2,224 (30.03%) Scrum
4 2,060 (27.81%) Continuous Integration
5 1,521 (20.53%) Test Automation
6 1,394 (18.82%) Microservices
7 1,376 (18.58%) MVC
8 1,054 (14.23%) Kanban
9 1,028 (13.88%) DevOps
10 944 (12.74%) OO
11 934 (12.61%) Pair Programming
12 852 (11.50%) Software Engineering
13 770 (10.40%) Unit Testing
14 704 (9.50%) E-Commerce
15 637 (8.60%) Continuous Delivery
16 617 (8.33%) Open Source
17 573 (7.74%) Front End Development
18 548 (7.40%) SOA
19 487 (6.57%) SOLID
20 443 (5.98%) Web Development
Programming Languages
1 3,250 (43.88%) Java
2 2,668 (36.02%) JavaScript
3 1,752 (23.65%) C#
4 1,208 (16.31%) SQL
5 735 (9.92%) Python
6 617 (8.33%) Scala
7 526 (7.10%) Ruby
8 372 (5.02%) ES6
9 216 (2.92%) TypeScript
10 215 (2.90%) Groovy
11 184 (2.48%) Apple Swift
12 183 (2.47%) PHP
13 181 (2.44%) C++
14 165 (2.23%) T-SQL
15 145 (1.96%) Go
16 133 (1.80%) Objective-C
17 121 (1.63%) Shell Script
18 100 (1.35%) C
19 82 (1.11%) XPath
20 69 (0.93%) Bash Shell
Qualifications
1 366 (4.94%) Degree
2 287 (3.87%) Security Cleared
3 193 (2.61%) SC Cleared
4 131 (1.77%) Computer Science Degree
5 39 (0.53%) ISEB
6 38 (0.51%) Master's Degree
7 32 (0.43%) ISTQB
8 27 (0.36%) BPSS Clearance
9 26 (0.35%) PhD
10 22 (0.30%) PMI Certification
11 17 (0.23%) PMP
12 12 (0.16%) CTC Cleared
13 11 (0.15%) DV Cleared
14 10 (0.14%) ISTQB Foundation Certification
15 9 (0.12%) Microsoft Certification
16 7 (0.095%) DBS Check
17 6 (0.081%) PRINCE2 Practitioner
18 5 (0.068%) ISEB Practitioner
18 5 (0.068%) MCPD
19 4 (0.054%) Sun Certification
Quality Assurance & Compliance
1 498 (6.72%) QA
2 45 (0.61%) MiFID
3 28 (0.38%) WCAG
4 25 (0.34%) GCP
5 20 (0.27%) PCI DSS
6 18 (0.24%) Data Quality
7 16 (0.22%) GDPR
8 15 (0.20%) Disclosure Scotland
8 15 (0.20%) ISO/IEC 27001
9 13 (0.18%) HL7
10 11 (0.15%) ISO 9001
11 9 (0.12%) WAI
12 6 (0.081%) EMIR
13 5 (0.068%) PSD2
13 5 (0.068%) SLA
14 4 (0.054%) PMO
15 3 (0.041%) Cyber Essentials
15 3 (0.041%) Dodd-Frank
15 3 (0.041%) IEC 62304
16 2 (0.027%) ISO 14001
System Software
1 857 (11.57%) Docker
2 110 (1.49%) HDFS
3 73 (0.99%) Apache ZooKeeper
4 38 (0.51%) VMware Infrastructure
5 29 (0.39%) Active Directory
6 22 (0.30%) vSphere
7 15 (0.20%) Virtual Machines
8 9 (0.12%) Apache Flume
9 8 (0.11%) NFS
10 5 (0.068%) vCloud
11 4 (0.054%) LXC
11 4 (0.054%) OpenDJ
12 3 (0.041%) Virtual Servers
13 2 (0.027%) OpenIDM
13 2 (0.027%) Varnish
14 1 (0.014%) Firmware
14 1 (0.014%) VirtualBox
Systems Management
1 389 (5.25%) Ansible
2 324 (4.37%) Puppet
3 278 (3.75%) Opscode Chef
4 229 (3.09%) Kubernetes
5 125 (1.69%) Terraform
6 69 (0.93%) Kibana
7 62 (0.84%) Grafana
8 52 (0.70%) Mesos
9 51 (0.69%) Hadoop YARN
9 51 (0.69%) logstash
10 33 (0.45%) Cobbler
11 29 (0.39%) Business Desktop Deployment
12 18 (0.24%) ITRS Geneos
13 15 (0.20%) ZABBIX
14 12 (0.16%) Packer
15 11 (0.15%) Docker Swarm
15 11 (0.15%) Oozie
16 10 (0.14%) HP Quality Center
16 10 (0.14%) Prometheus
17 9 (0.12%) Rancher
Vendors
1 645 (8.71%) Oracle
2 385 (5.20%) Microsoft
3 149 (2.01%) SAP
4 147 (1.98%) Google
5 106 (1.43%) Splunk
6 97 (1.31%) Sitecore
7 88 (1.19%) WSO2
8 83 (1.12%) Red Hat
9 72 (0.97%) AppDynamics
10 71 (0.96%) Apple
11 68 (0.92%) IBM
12 65 (0.88%) Adobe
13 60 (0.81%) Atlassian
14 56 (0.76%) Salesforce.com
15 50 (0.68%) Xamarin
16 43 (0.58%) VMware
17 42 (0.57%) HP
18 41 (0.55%) Cloudera
19 39 (0.53%) Apigee
20 37 (0.50%) Twitter