Period
to 22 November 2017

The following table provides summary statistics for permanent job vacancies with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 6 months to 22 November 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK
6 months to
22 Nov 2017
Same period 2016 Same period 2015
Rank 19 22 24
Rank change year-on-year +3 +2 +5
Permanent jobs citing TDD 16130 15493 16845
As % of all permanent IT jobs advertised in the UK 8.93% 8.15% 7.81%
As % of the Processes & Methodologies category 9.93% 9.11% 8.79%
Number of salaries quoted 13750 14034 14905
UK median annual salary £52,500 £50,000 £50,000
Median salary % change year-on-year +5.00% - +3.09%
10th Percentile £32,500 £32,500 £32,500
90th Percentile £80,000 £78,750 £75,000
UK excluding London median annual salary £45,000 £45,000 £42,500
% 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 permanent job vacancies with a requirement for process or methodology skills.

All Process and Methodology Skills
UK
Permanent vacancies with a requirement for process or methodology skills 162377 170041 191608
As % of all permanent IT jobs advertised in the UK 89.91% 89.40% 88.80%
Number of salaries quoted 128248 141329 157803
UK median annual salary £50,000 £49,500 £47,500
Median salary % change year-on-year +1.01% +4.21% +5.56%
10th Percentile £28,750 £28,000 £27,500
90th Percentile £80,000 £78,750 £77,500
UK excluding London median annual salary £44,000 £42,500 £42,500
% change year-on-year +3.53% - +6.25%

TDD
Job Vacancy Trend

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

Job vacancy trend for TDD in the UK

TDD
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing TDD.

Salary trend for TDD in the UK

TDD
Salary Histogram

The salary distribution of IT jobs citing TDD over the 6 months to 22 November 2017.

Salary histogram for TDD in the UK

TDD
Top 16 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the UK over the 6 months to 22 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +2 15113 £52,500 - 1372
UK excluding London +7 8245 £45,000 - 725
London 0 7618 £62,500 +4.17% 700
South East +8 2601 £47,500 +5.56% 193
North of England +1 2022 £45,000 +5.88% 227
North West +1 1268 £45,000 +5.88% 119
South West +19 982 £45,000 +5.88% 78
East of England +6 970 £48,945 +5.00% 106
Midlands +2 910 £42,500 - 67
Yorkshire +9 680 £45,000 - 94
Scotland +8 595 £47,500 +15.15% 38
West Midlands +2 505 £40,000 - 33
East Midlands +3 398 £42,500 - 34
Wales +4 138 £40,000 +14.29% 11
North East -14 74 £45,000 +12.50% 14
Northern Ireland +2 39 £40,000 +17.65% 5

For the 6 months to 22 November 2017, IT jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads with a requirement for TDD.

1 13261 (82.21%) Agile Software Development
2 7443 (46.14%) C#
3 7042 (43.66%) BDD
4 6819 (42.28%) .NET
5 6346 (39.34%) JavaScript
6 5824 (36.11%) Java
7 5702 (35.35%) MVC
8 5214 (32.32%) Scrum
9 5171 (32.06%) SQL Server
10 4569 (28.33%) ASP.NET
11 4294 (26.62%) HTML
12 4081 (25.30%) AngularJS
13 3944 (24.45%) Continuous Integration
14 3844 (23.83%) SQL
15 3823 (23.70%) ASP.NET MVC
16 3723 (23.08%) CSS
17 3636 (22.54%) Git (software)
18 3388 (21.00%) RESTful
19 3032 (18.80%) Finance
20 2953 (18.31%) OO
21 2942 (18.24%) Software Engineering
22 2849 (17.66%) Node.js
23 2758 (17.10%) Test Automation
24 2744 (17.01%) ASP.NET Web API
25 2505 (15.53%) NoSQL
26 2469 (15.31%) WCF
27 2406 (14.92%) Web Application Development
28 2356 (14.61%) ASP.NET MVC 5
29 2293 (14.22%) Spring
30 2215 (13.73%) Web Services

TDD
Co-occurring IT Skills 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
1 686 (4.25%) Elasticsearch
2 482 (2.99%) Tomcat
3 418 (2.59%) Apache
4 385 (2.39%) CMS
5 381 (2.36%) Confluence
6 333 (2.06%) JBoss
7 330 (2.05%) Apache Spark
8 210 (1.30%) IIS
9 209 (1.30%) WebSphere
10 172 (1.07%) Umbraco
11 166 (1.03%) Apache Solr
12 160 (0.99%) WebLogic
13 150 (0.93%) OpenStack
14 121 (0.75%) SharePoint
15 111 (0.69%) nginx
16 108 (0.67%) Mule
17 92 (0.57%) Sitecore CMS
18 84 (0.52%) Jetty
19 83 (0.51%) EPiServer
19 83 (0.51%) Mule ESB
Applications
1 64 (0.40%) Microsoft Excel
2 46 (0.29%) Microsoft Office
3 32 (0.20%) Photoshop
4 23 (0.14%) Microsoft Project
5 11 (0.068%) MS Visio
6 9 (0.056%) Simulink
7 8 (0.050%) Microsoft PowerPoint
8 7 (0.043%) Chatbot
9 6 (0.037%) Adobe Illustrator
10 4 (0.025%) InfoPath
11 3 (0.019%) Adobe Creative Suite
11 3 (0.019%) Autodesk Inventor
11 3 (0.019%) HipChat
11 3 (0.019%) Siemens NX
11 3 (0.019%) Solid Edge
12 2 (0.012%) EngageOne
12 2 (0.012%) InDesign
13 1 (0.006%) Acrobat
13 1 (0.006%) AutoCAD
13 1 (0.006%) Fireworks
Business Applications
1 84 (0.52%) Dynamics CRM
2 71 (0.44%) Magento
3 44 (0.27%) Payment Gateway
4 20 (0.12%) Eloqua
5 15 (0.093%) MetaTrader
6 10 (0.062%) Adobe Campaign
7 9 (0.056%) SAP ERP
7 9 (0.056%) SAP Hybris
7 9 (0.056%) SAP S/4HANA
8 7 (0.043%) RMDS
9 5 (0.031%) Shopify
10 4 (0.025%) Oracle EBS
10 4 (0.025%) Summit
11 3 (0.019%) Oracle BPM
11 3 (0.019%) Salesforce.com CRM
11 3 (0.019%) Visualfiles
12 2 (0.012%) Front Arena
12 2 (0.012%) Maximo
12 2 (0.012%) R3 Corda
12 2 (0.012%) Sentinel
Cloud Services
1 2149 (13.32%) Amazon AWS
2 1516 (9.40%) Microsoft Azure
3 492 (3.05%) GitHub
4 489 (3.03%) SaaS
5 254 (1.57%) PaaS
6 187 (1.16%) npm
7 183 (1.13%) Google Cloud Platform
8 175 (1.08%) Serverless
9 158 (0.98%) IaaS
10 152 (0.94%) Amazon EC2
11 149 (0.92%) Google Play
12 134 (0.83%) Cloud Computing
13 102 (0.63%) Amazon S3
14 88 (0.55%) AWS Lambda
15 86 (0.53%) AWS CloudFormation
16 68 (0.42%) Amazon SQS
17 66 (0.41%) OpenShift
18 49 (0.30%) Azure Active Directory
19 42 (0.26%) Office 365
20 39 (0.24%) AWS Elastic Beanstalk
Communications & Networking
1 688 (4.27%) Internet
2 361 (2.24%) HTTP
3 128 (0.79%) Broadband
4 91 (0.56%) Hyperconnected
5 90 (0.56%) AMQP
6 78 (0.48%) TCP/IP
7 67 (0.42%) Firewall
8 64 (0.40%) DNS
9 59 (0.37%) SSL
10 57 (0.35%) Intranet
10 57 (0.35%) VPN
11 48 (0.30%) Wireless
12 33 (0.20%) WAN
13 32 (0.20%) DHCP
14 26 (0.16%) ATM
14 26 (0.16%) DMZ
14 26 (0.16%) Skype
15 24 (0.15%) Extranet
16 17 (0.11%) Kerberos
17 15 (0.093%) Bluetooth
Database & Business Intelligence
1 5171 (32.06%) SQL Server
2 2505 (15.53%) NoSQL
3 1357 (8.41%) MySQL
4 1321 (8.19%) SQL Server 2016
5 1243 (7.71%) MongoDB
6 1132 (7.02%) SQL Server 2014
7 842 (5.22%) Relational Database
8 752 (4.66%) Big Data
9 465 (2.88%) PostgreSQL
10 389 (2.41%) Redis
11 367 (2.28%) Hadoop
12 360 (2.23%) Apache Cassandra
13 297 (1.84%) Amazon DynamoDB
14 277 (1.72%) SQL Server 2008
15 248 (1.54%) RDBMS
15 248 (1.54%) SQL Server Integration Services
16 176 (1.09%) SQL Server Reporting Services
17 170 (1.05%) SQL Server 2012
18 146 (0.91%) Oracle Database
19 118 (0.73%) Riak
Development Applications
1 3636 (22.54%) Git (software)
2 1646 (10.20%) Jenkins
3 1403 (8.70%) Selenium
4 1259 (7.81%) NUnit
5 1248 (7.74%) JIRA
6 977 (6.06%) JUnit
7 975 (6.04%) Cucumber
8 803 (4.98%) TeamCity
9 766 (4.75%) Subversion
10 752 (4.66%) Visual Studio
11 744 (4.61%) Maven
12 660 (4.09%) Rhino Mocks
13 605 (3.75%) Team Foundation Server
14 570 (3.53%) Moq
15 504 (3.12%) WebDriver
16 378 (2.34%) MSTest
17 365 (2.26%) Atlassian Bamboo
18 360 (2.23%) gulp
19 341 (2.11%) Gradle
20 334 (2.07%) Jasmine
General
1 3032 (18.80%) Finance
2 1144 (7.09%) Banking
3 1042 (6.46%) Games
4 899 (5.57%) Retail
5 848 (5.26%) Marketing
6 543 (3.37%) Advertising
7 542 (3.36%) Telecoms
8 467 (2.90%) Investment Banking
9 379 (2.35%) Electronics
10 335 (2.08%) Retail Banking
11 297 (1.84%) Manufacturing
12 199 (1.23%) Music Industry
13 183 (1.13%) Front Office
14 181 (1.12%) Publishing
15 130 (0.81%) Financial Institution
16 123 (0.76%) Law
17 108 (0.67%) Legal
18 87 (0.54%) Back Office
19 76 (0.47%) Online Betting
20 65 (0.40%) Automotive
Job Titles
1 11718 (72.65%) Developer
2 4533 (28.10%) .NET Developer
3 2670 (16.55%) Java Developer
4 2654 (16.45%) C# Developer
5 2320 (14.38%) Senior Developer
6 1769 (10.97%) C# .NET Developer
7 1182 (7.33%) Software Engineer
8 968 (6.00%) ASP.NET Developer
9 961 (5.96%) Software Developer
10 908 (5.63%) C# ASP.NET Developer
11 839 (5.20%) JavaScript Developer
12 798 (4.95%) Agile Developer
13 779 (4.83%) ASP.NET MVC Developer
14 762 (4.72%) Senior Java Developer
15 698 (4.33%) Full Stack Developer
16 620 (3.84%) Java Engineer
17 603 (3.74%) Lead Developer
18 584 (3.62%) Senior .NET Developer
19 527 (3.27%) Front End Developer (Client-Side Developer)
20 457 (2.83%) PHP Developer
Libraries, Frameworks & Software Standards
1 6819 (42.28%) .NET
2 4569 (28.33%) ASP.NET
3 4294 (26.62%) HTML
4 4081 (25.30%) AngularJS
5 3823 (23.70%) ASP.NET MVC
6 3723 (23.08%) CSS
7 3388 (21.00%) RESTful
8 2849 (17.66%) Node.js
9 2744 (17.01%) ASP.NET Web API
10 2469 (15.31%) WCF
11 2356 (14.61%) ASP.NET MVC 5
12 2293 (14.22%) Spring
13 2215 (13.73%) Web Services
14 2114 (13.11%) HTML5
15 2045 (12.68%) REST
16 1848 (11.46%) .NET Framework
17 1755 (10.88%) React
18 1678 (10.40%) jQuery
19 1437 (8.91%) Entity Framework
20 1380 (8.56%) Twitter Bootstrap
Miscellaneous
1 1845 (11.44%) Greenfield Project
2 1240 (7.69%) Computer Science
3 1008 (6.25%) User Experience
4 776 (4.81%) Fintech
5 720 (4.46%) Mobile App
6 695 (4.31%) Enterprise Software
7 528 (3.27%) Analytical Skills
8 319 (1.98%) Algorithms
9 200 (1.24%) Social Network
10 196 (1.22%) Client/Server
11 195 (1.21%) Data Structures
11 195 (1.21%) Derivative
12 175 (1.08%) Tandem
13 166 (1.03%) iPad
14 163 (1.01%) Foreign Exchange (FX)
15 159 (0.99%) Social Media
16 156 (0.97%) BBC
17 140 (0.87%) iPhone
18 133 (0.82%) Hedge funds
19 116 (0.72%) Equity Derivative
Operating Systems
1 1590 (9.86%) Linux
2 1103 (6.84%) Windows
3 814 (5.05%) Android
4 641 (3.97%) Apple iOS
5 424 (2.63%) Unix
6 61 (0.38%) CentOS
7 59 (0.37%) Ubuntu
8 50 (0.31%) Mac OS X
9 46 (0.29%) Debian
9 46 (0.29%) Mac OS
9 46 (0.29%) Windows Server
10 38 (0.24%) Solaris
11 24 (0.15%) Red Hat Enterprise Linux
12 18 (0.11%) HPUX
13 12 (0.074%) Windows Mobile
14 11 (0.068%) Windows Phone
15 8 (0.050%) Embedded Linux
15 8 (0.050%) MVS
16 6 (0.037%) Fedora
16 6 (0.037%) Nucleus RTOS
Processes & Methodologies
1 13261 (82.21%) Agile Software Development
2 7042 (43.66%) BDD
3 5702 (35.35%) MVC
4 5214 (32.32%) Scrum
5 3944 (24.45%) Continuous Integration
6 2953 (18.31%) OO
7 2942 (18.24%) Software Engineering
8 2758 (17.10%) Test Automation
9 2406 (14.92%) Web Application Development
10 2178 (13.50%) Kanban
11 1870 (11.59%) Microservices
12 1778 (11.02%) DevOps
13 1553 (9.63%) Unit Testing
14 1412 (8.75%) SDLC
15 1359 (8.43%) Web Development
16 1342 (8.32%) Mentoring
17 1337 (8.29%) E-Commerce
18 1120 (6.94%) SOLID
19 1054 (6.53%) Dependency Injection
20 1046 (6.48%) Open Source
Programming Languages
1 7443 (46.14%) C#
2 6346 (39.34%) JavaScript
3 5824 (36.11%) Java
4 3844 (23.83%) SQL
5 2000 (12.40%) Ruby
6 1601 (9.93%) Python
7 1085 (6.73%) PHP
8 790 (4.90%) Scala
9 785 (4.87%) C++
10 737 (4.57%) T-SQL
11 424 (2.63%) ES6
12 390 (2.42%) TypeScript
13 342 (2.12%) VB.NET
14 341 (2.11%) C
15 289 (1.79%) Go
16 282 (1.75%) Objective-C
17 261 (1.62%) Groovy
18 251 (1.56%) F#
19 249 (1.54%) Apple Swift
20 236 (1.46%) PowerShell
Qualifications
1 1744 (10.81%) Degree
2 667 (4.14%) Computer Science Degree
3 266 (1.65%) Security Cleared
4 189 (1.17%) ISTQB
5 148 (0.92%) SC Cleared
6 144 (0.89%) ISEB
7 127 (0.79%) Microsoft Certification
8 72 (0.45%) PhD
9 59 (0.37%) DV Cleared
10 49 (0.30%) Master's Degree
11 37 (0.23%) ISTQB Foundation Certification
12 35 (0.22%) MCSD
12 35 (0.22%) MCTS
13 33 (0.20%) MCAD
14 32 (0.20%) PMI Certification
15 24 (0.15%) Sun Certification
16 19 (0.12%) MCP
16 19 (0.12%) Numerate Degree
17 15 (0.093%) AWS Certification
17 15 (0.093%) ISTQB Advanced Certification
Quality Assurance & Compliance
1 1361 (8.44%) QA
2 32 (0.20%) GCP
3 22 (0.14%) ISO 9001
3 22 (0.14%) PCI DSS
4 18 (0.11%) ISO/IEC 27001
5 16 (0.099%) Data Quality
6 15 (0.093%) WCAG
7 13 (0.081%) SLA
8 10 (0.062%) MiFID
9 8 (0.050%) Basel III
9 8 (0.050%) IEC 61508
9 8 (0.050%) IEC 62304
10 7 (0.043%) EMIR
10 7 (0.043%) GDPR
11 6 (0.037%) ISO 14001
11 6 (0.037%) PMO
11 6 (0.037%) SEPA
12 5 (0.031%) Dodd-Frank
12 5 (0.031%) Web Application Security Consortium
13 4 (0.025%) PSD2
System Software
1 1160 (7.19%) Docker
2 60 (0.37%) Active Directory
3 50 (0.31%) HDFS
4 49 (0.30%) VMware Infrastructure
5 29 (0.18%) Apache ZooKeeper
6 20 (0.12%) Apache Flume
7 19 (0.12%) VirtualBox
8 14 (0.087%) Firmware
9 12 (0.074%) Hyper-V
10 10 (0.062%) vSphere
11 9 (0.056%) Virtual Machines
11 9 (0.056%) VMware ESXi
12 7 (0.043%) Varnish
13 6 (0.037%) KVM
14 5 (0.031%) NFS
14 5 (0.031%) Samba
14 5 (0.031%) VMware NSX
14 5 (0.031%) Xen
15 4 (0.025%) Microsoft App-V
16 3 (0.019%) Cygwin
Systems Management
1 502 (3.11%) Puppet
2 359 (2.23%) Ansible
3 349 (2.16%) Opscode Chef
4 269 (1.67%) Kubernetes
5 217 (1.35%) Kibana
6 141 (0.87%) Terraform
7 98 (0.61%) Business Desktop Deployment
8 90 (0.56%) WSUS
9 59 (0.37%) logstash
10 39 (0.24%) Packer
11 38 (0.24%) HP Quality Center
12 35 (0.22%) Salt
13 33 (0.20%) Mesos
14 30 (0.19%) Nagios
15 23 (0.14%) HockeyApp
16 22 (0.14%) ZABBIX
17 21 (0.13%) Cobbler
17 21 (0.13%) Grafana
18 13 (0.081%) CA Service Virtualization
18 13 (0.081%) Capistrano
Vendors
1 1707 (10.58%) Microsoft
2 897 (5.56%) Oracle
3 801 (4.97%) Google
4 446 (2.77%) Facebook
5 292 (1.81%) SAP
6 218 (1.35%) Apple
7 203 (1.26%) Zend
8 163 (1.01%) IBM
9 143 (0.89%) Atlassian
10 132 (0.82%) Sony
11 131 (0.81%) Sitecore
11 131 (0.81%) Xamarin
12 120 (0.74%) Twitter
13 111 (0.69%) Yahoo!
14 97 (0.60%) Splunk
15 90 (0.56%) hybris
16 67 (0.42%) VMware
17 59 (0.37%) Adobe
18 58 (0.36%) HP
19 57 (0.35%) Salesforce.com