Period
to 17 October 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 17 October 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK
6 months to
17 Oct 2017
Same period 2016 Same period 2015
Rank 19 22 24
Rank change year-on-year +3 +2 +7
Permanent jobs citing TDD 15723 15757 16891
As % of all permanent IT jobs advertised in the UK 8.99% 8.21% 7.76%
As % of the Processes & Methodologies category 9.99% 9.21% 8.76%
Number of salaries quoted 13349 14228 14938
UK median annual salary £52,500 £50,500 £49,000
Median salary % change year-on-year +3.96% +3.06% -2.00%
10th Percentile £33,000 £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 157359 171111 192913
As % of all permanent IT jobs advertised in the UK 89.96% 89.17% 88.57%
Number of salaries quoted 123907 142468 158541
UK median annual salary £50,000 £49,000 £47,500
Median salary % change year-on-year +2.04% +3.16% +5.56%
10th Percentile £28,750 £28,000 £27,500
90th Percentile £80,000 £78,750 £76,250
UK excluding London median annual salary £43,000 £42,500 £42,500
% change year-on-year +1.18% - +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 17 October 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 17 October 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 14781 £52,500 - 1475
UK excluding London +6 7897 £45,000 - 732
London -3 7590 £62,500 +4.17% 796
South East +8 2360 £47,500 +5.56% 185
North of England +4 2012 £45,000 +5.88% 211
North West +1 1235 £45,000 +5.88% 124
Midlands +5 954 £42,500 - 90
East of England +9 941 £50,000 +8.47% 96
South West +15 921 £45,000 +5.88% 95
Yorkshire +10 693 £45,000 - 75
Scotland +9 591 £47,500 +5.56% 38
West Midlands +9 549 £41,250 -2.94% 41
East Midlands +11 399 £45,000 +5.88% 49
Wales -4 100 £40,000 +14.29% 15
North East -9 84 £40,000 - 12
Northern Ireland -5 33 £36,750 +8.89% 2

For the 6 months to 17 October 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 12834 (81.63%) Agile Software Development
2 7152 (45.49%) C#
3 6643 (42.25%) .NET
4 6640 (42.23%) BDD
5 6389 (40.63%) JavaScript
6 5631 (35.81%) Java
7 5575 (35.46%) MVC
8 5240 (33.33%) Scrum
9 5002 (31.81%) SQL Server
10 4474 (28.46%) ASP.NET
11 4443 (28.26%) HTML
12 4028 (25.62%) AngularJS
13 3927 (24.98%) Continuous Integration
14 3847 (24.47%) CSS
15 3748 (23.84%) SQL
16 3687 (23.45%) ASP.NET MVC
17 3620 (23.02%) Git (software)
18 3131 (19.91%) RESTful
19 3033 (19.29%) Finance
20 2917 (18.55%) OO
21 2757 (17.53%) Software Engineering
22 2749 (17.48%) Node.js
23 2655 (16.89%) ASP.NET Web API
24 2638 (16.78%) Test Automation
25 2409 (15.32%) NoSQL
26 2363 (15.03%) WCF
27 2312 (14.70%) Web Services
28 2235 (14.21%) Spring
29 2156 (13.71%) Kanban
30 2149 (13.67%) Web Application Development

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
1 640 (4.07%) Elasticsearch
2 503 (3.20%) Tomcat
3 457 (2.91%) CMS
4 435 (2.77%) Apache
5 396 (2.52%) Confluence
6 362 (2.30%) Apache Spark
7 355 (2.26%) JBoss
8 230 (1.46%) WebSphere
9 221 (1.41%) IIS
10 185 (1.18%) Apache Solr
11 170 (1.08%) Umbraco
11 170 (1.08%) WebLogic
12 159 (1.01%) OpenStack
13 126 (0.80%) Mule
14 123 (0.78%) nginx
14 123 (0.78%) SharePoint
15 95 (0.60%) Mule ESB
15 95 (0.60%) Sitecore CMS
16 89 (0.57%) Jetty
17 79 (0.50%) EPiServer
Applications
1 56 (0.36%) Microsoft Excel
2 47 (0.30%) Microsoft Office
3 32 (0.20%) Photoshop
4 27 (0.17%) Microsoft Project
5 13 (0.083%) MS Visio
6 8 (0.051%) Microsoft PowerPoint
7 5 (0.032%) Adobe Creative Suite
7 5 (0.032%) Simulink
8 3 (0.019%) Adobe Illustrator
8 3 (0.019%) Autodesk Inventor
8 3 (0.019%) Chatbot
8 3 (0.019%) HipChat
8 3 (0.019%) Siemens NX
8 3 (0.019%) Solid Edge
8 3 (0.019%) Spreadsheet
9 2 (0.013%) Adobe After Effects
9 2 (0.013%) Adobe Premiere
9 2 (0.013%) EngageOne
9 2 (0.013%) InDesign
10 1 (0.006%) Acrobat
Business Applications
1 84 (0.53%) Dynamics CRM
2 67 (0.43%) Magento
3 33 (0.21%) Payment Gateway
4 25 (0.16%) Eloqua
5 17 (0.11%) SAP Hybris
6 15 (0.095%) MetaTrader
7 12 (0.076%) Adobe Campaign
8 9 (0.057%) SAP ERP
8 9 (0.057%) SAP S/4HANA
9 7 (0.045%) RMDS
10 6 (0.038%) WebTrends
11 5 (0.032%) Shopify
12 4 (0.025%) Oracle BPM
12 4 (0.025%) Summit
13 3 (0.019%) Oracle EBS
14 2 (0.013%) Advent Geneva
14 2 (0.013%) Front Arena
14 2 (0.013%) Oracle CRM
14 2 (0.013%) Sentinel
14 2 (0.013%) Visualfiles
Cloud Services
1 2033 (12.93%) Amazon AWS
2 1483 (9.43%) Microsoft Azure
3 490 (3.12%) GitHub
3 490 (3.12%) SaaS
4 227 (1.44%) PaaS
5 200 (1.27%) npm
6 158 (1.00%) Google Cloud Platform
7 157 (1.00%) Amazon EC2
7 157 (1.00%) Serverless
8 142 (0.90%) Google Play
9 130 (0.83%) Cloud Computing
10 126 (0.80%) IaaS
11 85 (0.54%) Amazon S3
12 79 (0.50%) AWS CloudFormation
13 76 (0.48%) AWS Lambda
14 63 (0.40%) Amazon SQS
15 52 (0.33%) OpenShift
16 51 (0.32%) Azure Active Directory
17 43 (0.27%) Office 365
18 34 (0.22%) AWS Elastic Beanstalk
Communications & Networking
1 652 (4.15%) Internet
2 382 (2.43%) HTTP
3 106 (0.67%) Broadband
4 87 (0.55%) AMQP
5 84 (0.53%) TCP/IP
6 74 (0.47%) DNS
7 67 (0.43%) Hyperconnected
8 62 (0.39%) Intranet
9 59 (0.38%) Firewall
10 56 (0.36%) SSL
11 53 (0.34%) VPN
12 31 (0.20%) WAN
13 30 (0.19%) DHCP
14 29 (0.18%) Wireless
15 25 (0.16%) DMZ
15 25 (0.16%) Skype
16 23 (0.15%) ATM
16 23 (0.15%) Extranet
17 18 (0.11%) SSH
18 17 (0.11%) Kerberos
Database & Business Intelligence
1 5002 (31.81%) SQL Server
2 2409 (15.32%) NoSQL
3 1312 (8.34%) MySQL
4 1261 (8.02%) MongoDB
5 1123 (7.14%) SQL Server 2016
6 1071 (6.81%) SQL Server 2014
7 844 (5.37%) Relational Database
8 745 (4.74%) Big Data
9 464 (2.95%) PostgreSQL
10 383 (2.44%) Apache Cassandra
11 382 (2.43%) Hadoop
12 376 (2.39%) Redis
13 305 (1.94%) Amazon DynamoDB
14 292 (1.86%) RDBMS
15 277 (1.76%) SQL Server Integration Services
16 269 (1.71%) SQL Server 2008
17 202 (1.28%) SQL Server Reporting Services
18 182 (1.16%) SQL Server 2012
19 137 (0.87%) Blockchain
20 128 (0.81%) Riak
Development Applications
1 3620 (23.02%) Git (software)
2 1678 (10.67%) Jenkins
3 1391 (8.85%) Selenium
4 1303 (8.29%) JIRA
5 1242 (7.90%) NUnit
6 1000 (6.36%) JUnit
7 918 (5.84%) Cucumber
8 816 (5.19%) TeamCity
9 763 (4.85%) Maven
10 751 (4.78%) Subversion
11 747 (4.75%) Visual Studio
12 646 (4.11%) Team Foundation Server
13 619 (3.94%) Rhino Mocks
14 533 (3.39%) Moq
15 485 (3.08%) WebDriver
16 364 (2.32%) Jasmine
17 344 (2.19%) gulp
18 340 (2.16%) MSTest
19 314 (2.00%) SpecFlow
20 313 (1.99%) Gradle
General
1 3033 (19.29%) Finance
2 1125 (7.16%) Banking
3 1094 (6.96%) Retail
4 952 (6.05%) Games
5 853 (5.43%) Marketing
6 540 (3.43%) Telecoms
7 502 (3.19%) Investment Banking
8 464 (2.95%) Advertising
9 381 (2.42%) Electronics
10 329 (2.09%) Retail Banking
11 317 (2.02%) Manufacturing
12 189 (1.20%) Front Office
12 189 (1.20%) Publishing
13 174 (1.11%) Music Industry
14 127 (0.81%) Financial Institution
15 105 (0.67%) Legal
16 99 (0.63%) Law
17 78 (0.50%) Back Office
18 69 (0.44%) Online Betting
19 59 (0.38%) Automotive
Job Titles
1 11483 (73.03%) Developer
2 4395 (27.95%) .NET Developer
3 2755 (17.52%) C# Developer
4 2618 (16.65%) Java Developer
5 2399 (15.26%) Senior Developer
6 1846 (11.74%) C# .NET Developer
7 1060 (6.74%) Software Engineer
8 1015 (6.46%) ASP.NET Developer
9 989 (6.29%) Software Developer
10 941 (5.98%) C# ASP.NET Developer
11 852 (5.42%) JavaScript Developer
12 839 (5.34%) ASP.NET MVC Developer
13 815 (5.18%) Senior Java Developer
14 759 (4.83%) Agile Developer
15 688 (4.38%) Full Stack Developer
16 643 (4.09%) Lead Developer
17 615 (3.91%) Senior .NET Developer
18 578 (3.68%) Java Engineer
19 495 (3.15%) Front End Developer (Client-Side Developer)
20 477 (3.03%) .NET Software Developer
Libraries, Frameworks & Software Standards
1 6643 (42.25%) .NET
2 4474 (28.46%) ASP.NET
3 4443 (28.26%) HTML
4 4028 (25.62%) AngularJS
5 3847 (24.47%) CSS
6 3687 (23.45%) ASP.NET MVC
7 3131 (19.91%) RESTful
8 2749 (17.48%) Node.js
9 2655 (16.89%) ASP.NET Web API
10 2363 (15.03%) WCF
11 2312 (14.70%) Web Services
12 2235 (14.21%) Spring
13 2136 (13.59%) HTML5
14 2125 (13.52%) ASP.NET MVC 5
15 2076 (13.20%) REST
16 1848 (11.75%) .NET Framework
17 1735 (11.03%) jQuery
18 1730 (11.00%) React
19 1457 (9.27%) Entity Framework
20 1295 (8.24%) Twitter Bootstrap
Miscellaneous
1 1736 (11.04%) Greenfield Project
2 1113 (7.08%) Computer Science
3 1006 (6.40%) User Experience
4 757 (4.81%) Mobile App
5 727 (4.62%) Fintech
6 722 (4.59%) Enterprise Software
7 460 (2.93%) Analytical Skills
8 276 (1.76%) Algorithms
9 237 (1.51%) iPad
10 200 (1.27%) Social Network
11 198 (1.26%) Derivative
12 193 (1.23%) Data Structures
13 184 (1.17%) Foreign Exchange (FX)
14 151 (0.96%) Client/Server
15 146 (0.93%) iPhone
16 140 (0.89%) Tandem
17 139 (0.88%) Social Media
18 134 (0.85%) Hedge funds
19 125 (0.80%) BBC
20 121 (0.77%) N-Tier
Operating Systems
1 1647 (10.48%) Linux
2 1066 (6.78%) Windows
3 784 (4.99%) Android
4 626 (3.98%) Apple iOS
5 424 (2.70%) Unix
6 65 (0.41%) Mac OS X
7 58 (0.37%) Ubuntu
8 53 (0.34%) Mac OS
9 49 (0.31%) CentOS
10 45 (0.29%) Debian
11 43 (0.27%) Solaris
12 42 (0.27%) Windows Server
13 20 (0.13%) HPUX
14 18 (0.11%) Red Hat Enterprise Linux
15 13 (0.083%) Windows Mobile
16 8 (0.051%) MVS
16 8 (0.051%) Windows Embedded Compact
17 6 (0.038%) Fedora
17 6 (0.038%) Windows 10
17 6 (0.038%) Windows Phone
Processes & Methodologies
1 12834 (81.63%) Agile Software Development
2 6640 (42.23%) BDD
3 5575 (35.46%) MVC
4 5240 (33.33%) Scrum
5 3927 (24.98%) Continuous Integration
6 2917 (18.55%) OO
7 2757 (17.53%) Software Engineering
8 2638 (16.78%) Test Automation
9 2156 (13.71%) Kanban
10 2149 (13.67%) Web Application Development
11 1741 (11.07%) DevOps
12 1697 (10.79%) Microservices
13 1549 (9.85%) Unit Testing
14 1422 (9.04%) Web Development
15 1393 (8.86%) SDLC
16 1360 (8.65%) E-Commerce
17 1335 (8.49%) Mentoring
18 1170 (7.44%) SOLID
19 1071 (6.81%) Pair Programming
20 986 (6.27%) Open Source
Programming Languages
1 7152 (45.49%) C#
2 6389 (40.63%) JavaScript
3 5631 (35.81%) Java
4 3748 (23.84%) SQL
5 1820 (11.58%) Ruby
6 1567 (9.97%) Python
7 983 (6.25%) PHP
8 764 (4.86%) Scala
9 759 (4.83%) T-SQL
10 711 (4.52%) C++
11 419 (2.66%) ES6
12 384 (2.44%) TypeScript
13 340 (2.16%) VB.NET
14 338 (2.15%) C
15 282 (1.79%) PowerShell
16 281 (1.79%) Objective-C
17 278 (1.77%) Go
18 256 (1.63%) Groovy
19 237 (1.51%) Apple Swift
20 230 (1.46%) F#
Qualifications
1 1661 (10.56%) Degree
2 617 (3.92%) Computer Science Degree
3 238 (1.51%) Security Cleared
4 174 (1.11%) ISTQB
5 140 (0.89%) ISEB
6 128 (0.81%) SC Cleared
7 116 (0.74%) Microsoft Certification
8 75 (0.48%) PhD
9 58 (0.37%) DV Cleared
10 41 (0.26%) Master's Degree
11 37 (0.24%) MCSD
11 37 (0.24%) MCTS
12 34 (0.22%) ISTQB Foundation Certification
12 34 (0.22%) MCAD
13 28 (0.18%) PMI Certification
14 21 (0.13%) MCP
15 17 (0.11%) Numerate Degree
16 15 (0.095%) Sun Certification
17 13 (0.083%) AWS Certification
17 13 (0.083%) CITP
Quality Assurance & Compliance
1 1265 (8.05%) QA
2 28 (0.18%) ISO 9001
3 24 (0.15%) PCI DSS
4 23 (0.15%) WCAG
5 20 (0.13%) Data Quality
6 19 (0.12%) MiFID
7 18 (0.11%) GCP
8 15 (0.095%) SLA
9 14 (0.089%) ISO/IEC 27001
10 9 (0.057%) ISO 14001
11 8 (0.051%) Basel III
11 8 (0.051%) EMIR
12 6 (0.038%) GDPR
12 6 (0.038%) PMO
13 5 (0.032%) Dodd-Frank
13 5 (0.032%) IEC 61508
13 5 (0.032%) IEC 62304
14 4 (0.025%) ISO 9000
14 4 (0.025%) SEPA
14 4 (0.025%) WAI
System Software
1 1096 (6.97%) Docker
2 79 (0.50%) VMware Infrastructure
3 67 (0.43%) Active Directory
4 44 (0.28%) HDFS
5 38 (0.24%) VirtualBox
6 32 (0.20%) Hyper-V
6 32 (0.20%) Virtual Machines
7 30 (0.19%) Apache ZooKeeper
8 27 (0.17%) Xen
9 22 (0.14%) Apache Flume
10 13 (0.083%) vSphere
11 10 (0.064%) Firmware
12 9 (0.057%) VMware ESXi
13 8 (0.051%) Microsoft App-V
13 8 (0.051%) Varnish
14 7 (0.045%) NFS
14 7 (0.045%) Samba
14 7 (0.045%) VMware NSX
15 3 (0.019%) Cygwin
16 2 (0.013%) OpenAM
Systems Management
1 560 (3.56%) Puppet
2 406 (2.58%) Ansible
3 364 (2.32%) Opscode Chef
4 255 (1.62%) Kubernetes
5 208 (1.32%) Kibana
6 126 (0.80%) Terraform
7 83 (0.53%) Business Desktop Deployment
8 74 (0.47%) WSUS
9 68 (0.43%) logstash
10 41 (0.26%) HP Quality Center
10 41 (0.26%) Packer
10 41 (0.26%) Salt
11 29 (0.18%) Grafana
11 29 (0.18%) Nagios
12 28 (0.18%) Mesos
13 20 (0.13%) ZABBIX
14 18 (0.11%) Cobbler
15 17 (0.11%) HAProxy
16 13 (0.083%) Capistrano
17 12 (0.076%) HockeyApp
Vendors
1 1794 (11.41%) Microsoft
2 874 (5.56%) Oracle
3 712 (4.53%) Google
4 381 (2.42%) Facebook
5 321 (2.04%) SAP
6 190 (1.21%) Apple
7 185 (1.18%) Zend
8 155 (0.99%) IBM
9 136 (0.86%) Sitecore
10 133 (0.85%) Xamarin
11 122 (0.78%) Atlassian
12 116 (0.74%) hybris
13 108 (0.69%) Sony
14 95 (0.60%) VMware
15 92 (0.59%) Twitter
16 91 (0.58%) Splunk
17 90 (0.57%) Yahoo!
18 78 (0.50%) Adobe
19 54 (0.34%) AppDynamics
20 51 (0.32%) MuleSoft