Period
to 19 August 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 19 August 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK
6 months to
19 Aug 2017
Same period 2016 Same period 2015
Rank 18 22 25
Rank change year-on-year +4 +3 +4
Permanent jobs citing TDD 16369 15982 16431
As % of all permanent IT jobs advertised in the UK 9.25% 8.10% 7.56%
As % of the Processes & Methodologies category 10.29% 9.10% 8.58%
Number of salaries quoted 14111 14386 14496
UK median annual salary £52,000 £52,000 £50,000
Median salary % change year-on-year - +4.00% -
10th Percentile £32,500 £32,500 £32,500
90th Percentile £80,000 £77,500 £73,750
UK excluding London median annual salary £45,000 £45,000 £42,500
% change year-on-year - +5.88% +6.25%

TDD is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for process and methodology skills.

Process & Methodology Skills
UK
Permanent job vacancies with a requirement for process and methodology skills 159042 175633 191561
As % of all permanent IT job vacancies advertised in the UK 89.89% 89.06% 88.13%
Number of salaries quoted 126409 146488 156350
UK median annual salary £50,000 £49,000 £47,500
Median salary % change year-on-year +2.04% +3.16% +5.56%
10th Percentile £28,723 £27,625 £27,500
90th Percentile £80,000 £77,500 £76,250
UK excluding London median annual salary £42,500 £42,500 £42,500

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 19 August 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 19 August 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 +4 15371 £52,500 - 1164
UK excluding London +8 8308 £45,000 - 579
London -1 7800 £62,500 +4.17% 627
South East +11 2418 £47,500 +5.56% 150
North of England +6 2229 £42,500 - 189
North West +2 1290 £42,500 - 113
Midlands +21 1063 £42,500 - 55
East of England +12 946 £48,945 +8.77% 65
South West +14 914 £45,000 +5.88% 76
Yorkshire +12 837 £42,500 -5.56% 70
West Midlands +9 611 £42,500 - 29
Scotland +10 595 £47,500 +5.56% 31
East Midlands +23 452 £45,000 +2.27% 26
Wales +20 139 £41,500 +10.67% 9
North East +6 102 £40,000 - 6
Northern Ireland +4 20 £37,500 -10.71% 4

For the 6 months to 19 August 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 13241 (80.89%) Agile Software Development
2 7311 (44.66%) C#
3 6856 (41.88%) .NET
4 6774 (41.38%) JavaScript
5 6738 (41.16%) BDD
6 5815 (35.52%) Java
7 5798 (35.42%) MVC
8 5463 (33.37%) Scrum
9 5113 (31.24%) SQL Server
10 4782 (29.21%) HTML
11 4618 (28.21%) ASP.NET
12 4267 (26.07%) AngularJS
13 4180 (25.54%) Continuous Integration
14 4137 (25.27%) CSS
15 3802 (23.23%) SQL
16 3773 (23.05%) ASP.NET MVC
17 3608 (22.04%) Git (software)
18 3140 (19.18%) OO
19 3088 (18.86%) Finance
20 3016 (18.43%) RESTful
21 2816 (17.20%) Node.js
22 2795 (17.07%) Software Engineering
23 2770 (16.92%) Test Automation
24 2704 (16.52%) ASP.NET Web API
25 2480 (15.15%) Web Services
26 2395 (14.63%) NoSQL
27 2350 (14.36%) WCF
28 2312 (14.12%) HTML5
29 2278 (13.92%) Spring
30 2273 (13.89%) Kanban

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
1 682 (4.17%) Elasticsearch
2 549 (3.35%) Tomcat
3 540 (3.30%) CMS
4 457 (2.79%) Apache
5 398 (2.43%) JBoss
6 390 (2.38%) Apache Spark
7 356 (2.17%) Confluence
8 271 (1.66%) WebSphere
9 250 (1.53%) IIS
10 236 (1.44%) Apache Solr
11 183 (1.12%) WebLogic
12 168 (1.03%) OpenStack
13 166 (1.01%) nginx
14 157 (0.96%) Umbraco
15 144 (0.88%) Mule
16 133 (0.81%) SharePoint
17 113 (0.69%) Sitecore CMS
18 108 (0.66%) Jetty
18 108 (0.66%) Mule ESB
19 106 (0.65%) BizTalk Server
Applications
1 61 (0.37%) Microsoft Office
2 60 (0.37%) Microsoft Excel
3 47 (0.29%) Microsoft Project
4 29 (0.18%) Photoshop
5 17 (0.10%) MS Visio
6 14 (0.086%) Microsoft PowerPoint
7 9 (0.055%) Adobe Illustrator
8 5 (0.031%) Adobe Creative Suite
9 4 (0.024%) Chatbot
10 3 (0.018%) Adobe After Effects
10 3 (0.018%) Adobe Premiere
10 3 (0.018%) Autodesk Inventor
10 3 (0.018%) Siemens NX
10 3 (0.018%) Solid Edge
10 3 (0.018%) Spreadsheet
11 2 (0.012%) InDesign
12 1 (0.006%) Acrobat
12 1 (0.006%) AutoCAD
12 1 (0.006%) Fireworks
12 1 (0.006%) Mingle
Business Applications
1 87 (0.53%) Dynamics CRM
2 70 (0.43%) Magento
3 22 (0.13%) Eloqua
3 22 (0.13%) SAP Hybris
4 19 (0.12%) Payment Gateway
5 10 (0.061%) Adobe Campaign
6 9 (0.055%) Oracle Retail
6 9 (0.055%) SAP ERP
6 9 (0.055%) SAP S/4HANA
7 8 (0.049%) Oracle Financials
7 8 (0.049%) PeopleSoft Financials
8 7 (0.043%) MetaTrader
9 6 (0.037%) WebTrends
10 4 (0.024%) Oracle BPM
10 4 (0.024%) RMDS
10 4 (0.024%) SAP Business One
10 4 (0.024%) Shopify
10 4 (0.024%) Visualfiles
11 2 (0.012%) Advent Geneva
11 2 (0.012%) BondVision
Cloud Services
1 2054 (12.55%) Amazon AWS
2 1473 (9.00%) Microsoft Azure
3 538 (3.29%) GitHub
4 507 (3.10%) SaaS
5 203 (1.24%) PaaS
6 188 (1.15%) Amazon EC2
7 165 (1.01%) Google Cloud Platform
8 135 (0.82%) Google Play
9 132 (0.81%) Cloud Computing
10 92 (0.56%) IaaS
11 80 (0.49%) Amazon S3
12 65 (0.40%) AWS CloudFormation
13 64 (0.39%) AWS Lambda
14 56 (0.34%) Amazon SQS
15 42 (0.26%) Slack
16 40 (0.24%) AWS Elastic Beanstalk
16 40 (0.24%) OpenShift
17 38 (0.23%) Office 365
18 34 (0.21%) BrowserStack
19 33 (0.20%) Azure Active Directory
Communications & Networking
1 619 (3.78%) Internet
2 372 (2.27%) HTTP
3 93 (0.57%) Broadband
4 91 (0.56%) TCP/IP
5 84 (0.51%) AMQP
6 71 (0.43%) DNS
7 70 (0.43%) Intranet
8 51 (0.31%) SSL
9 38 (0.23%) Firewall
10 31 (0.19%) Skype
11 30 (0.18%) Wireless
12 27 (0.16%) VPN
13 25 (0.15%) Extranet
14 20 (0.12%) Kerberos
15 19 (0.12%) DHCP
16 18 (0.11%) Ethernet
16 18 (0.11%) SSH
17 17 (0.10%) WAN
18 16 (0.098%) RS-232
19 15 (0.092%) DMZ
Database & Business Intelligence
1 5113 (31.24%) SQL Server
2 2395 (14.63%) NoSQL
3 1409 (8.61%) MongoDB
4 1392 (8.50%) MySQL
5 1082 (6.61%) SQL Server 2014
6 1010 (6.17%) SQL Server 2016
7 880 (5.38%) Relational Database
8 758 (4.63%) Big Data
9 537 (3.28%) PostgreSQL
10 479 (2.93%) Apache Cassandra
11 398 (2.43%) Hadoop
12 379 (2.32%) Redis
13 365 (2.23%) RDBMS
14 294 (1.80%) Amazon DynamoDB
15 292 (1.78%) SQL Server Integration Services
16 258 (1.58%) SQL Server 2008
17 255 (1.56%) SQL Server 2012
18 218 (1.33%) SQL Server Reporting Services
19 164 (1.00%) Blockchain
20 133 (0.81%) Riak
Development Applications
1 3608 (22.04%) Git (software)
2 1710 (10.45%) Jenkins
3 1517 (9.27%) Selenium
4 1281 (7.83%) JIRA
5 1271 (7.76%) NUnit
6 984 (6.01%) JUnit
7 865 (5.28%) TeamCity
8 864 (5.28%) Cucumber
9 863 (5.27%) Subversion
10 861 (5.26%) Maven
10 861 (5.26%) Visual Studio
11 762 (4.66%) Team Foundation Server
12 614 (3.75%) Rhino Mocks
13 532 (3.25%) Moq
14 523 (3.20%) WebDriver
15 488 (2.98%) Jasmine
16 404 (2.47%) gulp
17 384 (2.35%) SpecFlow
18 361 (2.21%) MSTest
19 332 (2.03%) Grunt
General
1 3088 (18.86%) Finance
2 1054 (6.44%) Retail
3 1029 (6.29%) Banking
4 921 (5.63%) Games
5 876 (5.35%) Marketing
6 574 (3.51%) Telecoms
7 478 (2.92%) Investment Banking
8 429 (2.62%) Advertising
9 398 (2.43%) Electronics
10 326 (1.99%) Manufacturing
11 251 (1.53%) Retail Banking
12 194 (1.19%) Publishing
13 149 (0.91%) Front Office
14 146 (0.89%) Music Industry
15 123 (0.75%) Financial Institution
16 122 (0.75%) Legal
17 108 (0.66%) Back Office
18 103 (0.63%) Law
19 60 (0.37%) Automotive
20 57 (0.35%) Online Betting
Job Titles
1 11986 (73.22%) Developer
2 4437 (27.11%) .NET Developer
3 2943 (17.98%) C# Developer
4 2748 (16.79%) Java Developer
5 2530 (15.46%) Senior Developer
6 1987 (12.14%) C# .NET Developer
7 1133 (6.92%) ASP.NET Developer
8 1064 (6.50%) Software Engineer
9 1054 (6.44%) Software Developer
10 1040 (6.35%) C# ASP.NET Developer
11 960 (5.86%) JavaScript Developer
12 940 (5.74%) ASP.NET MVC Developer
13 890 (5.44%) Senior Java Developer
14 768 (4.69%) Lead Developer
15 728 (4.45%) Agile Developer
16 624 (3.81%) Full Stack Developer
17 614 (3.75%) Senior .NET Developer
18 562 (3.43%) Front End Developer (Client-Side Developer)
19 534 (3.26%) Java Engineer
20 532 (3.25%) .NET Software Developer
Libraries, Frameworks & Software Standards
1 6856 (41.88%) .NET
2 4782 (29.21%) HTML
3 4618 (28.21%) ASP.NET
4 4267 (26.07%) AngularJS
5 4137 (25.27%) CSS
6 3773 (23.05%) ASP.NET MVC
7 3016 (18.43%) RESTful
8 2816 (17.20%) Node.js
9 2704 (16.52%) ASP.NET Web API
10 2480 (15.15%) Web Services
11 2350 (14.36%) WCF
12 2312 (14.12%) HTML5
13 2278 (13.92%) Spring
14 2078 (12.69%) REST
15 2031 (12.41%) ASP.NET MVC 5
16 2020 (12.34%) .NET Framework
17 1855 (11.33%) jQuery
18 1823 (11.14%) React
19 1560 (9.53%) Entity Framework
20 1348 (8.24%) XML
Miscellaneous
1 1726 (10.54%) Greenfield Project
2 1140 (6.96%) Computer Science
3 1089 (6.65%) User Experience
4 784 (4.79%) Mobile App
5 772 (4.72%) Enterprise Software
6 672 (4.11%) Fintech
7 481 (2.94%) Analytical Skills
8 293 (1.79%) iPad
9 260 (1.59%) Algorithms
10 184 (1.12%) Data Structures
10 184 (1.12%) Social Network
11 170 (1.04%) Foreign Exchange (FX)
12 164 (1.00%) Derivative
13 159 (0.97%) Social Media
14 157 (0.96%) N-Tier
15 147 (0.90%) Hedge funds
16 144 (0.88%) Client/Server
17 134 (0.82%) iPhone
18 123 (0.75%) BBC
19 120 (0.73%) Tandem
Operating Systems
1 1741 (10.64%) Linux
2 1074 (6.56%) Windows
3 777 (4.75%) Android
4 630 (3.85%) Apple iOS
5 394 (2.41%) Unix
6 75 (0.46%) Mac OS
7 63 (0.38%) Mac OS X
8 56 (0.34%) Ubuntu
9 42 (0.26%) Debian
9 42 (0.26%) Windows Server
10 39 (0.24%) CentOS
10 39 (0.24%) Solaris
11 20 (0.12%) Red Hat Enterprise Linux
12 18 (0.11%) HPUX
13 15 (0.092%) Windows Embedded Compact
14 12 (0.073%) Windows Mobile
15 10 (0.061%) Windows 10
16 6 (0.037%) Fedora
17 5 (0.031%) FreeBSD
17 5 (0.031%) Windows Phone
Processes & Methodologies
1 13241 (80.89%) Agile Software Development
2 6738 (41.16%) BDD
3 5798 (35.42%) MVC
4 5463 (33.37%) Scrum
5 4180 (25.54%) Continuous Integration
6 3140 (19.18%) OO
7 2795 (17.07%) Software Engineering
8 2770 (16.92%) Test Automation
9 2273 (13.89%) Kanban
10 2046 (12.50%) Web Application Development
11 1683 (10.28%) Unit Testing
12 1658 (10.13%) DevOps
13 1586 (9.69%) Microservices
14 1519 (9.28%) E-Commerce
15 1463 (8.94%) Web Development
16 1385 (8.46%) SDLC
17 1296 (7.92%) Mentoring
18 1294 (7.91%) SOLID
19 1102 (6.73%) OOP
20 1049 (6.41%) Continuous Delivery
Programming Languages
1 7311 (44.66%) C#
2 6774 (41.38%) JavaScript
3 5815 (35.52%) Java
4 3802 (23.23%) SQL
5 1808 (11.05%) Ruby
6 1658 (10.13%) Python
7 1013 (6.19%) PHP
8 768 (4.69%) Scala
9 741 (4.53%) T-SQL
10 688 (4.20%) C++
11 478 (2.92%) ES6
12 396 (2.42%) TypeScript
13 394 (2.41%) VB.NET
14 332 (2.03%) C
15 314 (1.92%) Objective-C
16 308 (1.88%) Go
17 278 (1.70%) PowerShell
18 261 (1.59%) Groovy
19 260 (1.59%) Apple Swift
20 230 (1.41%) F#
Qualifications
1 1739 (10.62%) Degree
2 621 (3.79%) Computer Science Degree
3 259 (1.58%) Security Cleared
4 207 (1.26%) ISTQB
5 190 (1.16%) ISEB
6 138 (0.84%) SC Cleared
7 91 (0.56%) Microsoft Certification
8 57 (0.35%) ISTQB Foundation Certification
9 56 (0.34%) PhD
10 51 (0.31%) DV Cleared
11 43 (0.26%) Master's Degree
12 33 (0.20%) MCSD
13 30 (0.18%) MCAD
13 30 (0.18%) MCTS
13 30 (0.18%) PMI Certification
14 26 (0.16%) MCP
15 14 (0.086%) Numerate Degree
16 13 (0.079%) AWS Certification
17 10 (0.061%) ISTQB Advanced Certification
17 10 (0.061%) Sun Certification
Quality Assurance & Compliance
1 1337 (8.17%) QA
2 47 (0.29%) ISO/IEC 27001
3 37 (0.23%) ISO 9001
4 36 (0.22%) HMG Security Policy Framework
5 28 (0.17%) PCI DSS
6 22 (0.13%) MiFID
6 22 (0.13%) WCAG
7 17 (0.10%) Data Quality
8 16 (0.098%) ISO 14001
9 15 (0.092%) SLA
10 14 (0.086%) GCP
11 10 (0.061%) EMIR
11 10 (0.061%) PMO
12 7 (0.043%) Basel III
13 5 (0.031%) Dodd-Frank
13 5 (0.031%) WAI
14 4 (0.024%) GDPR
14 4 (0.024%) ISO 9000
14 4 (0.024%) Section 508
15 3 (0.018%) ISO/IEC 20000
System Software
1 1063 (6.49%) Docker
2 86 (0.53%) VMware Infrastructure
3 64 (0.39%) Active Directory
4 46 (0.28%) VirtualBox
5 41 (0.25%) Virtual Machines
6 38 (0.23%) HDFS
7 37 (0.23%) Apache ZooKeeper
8 33 (0.20%) Hyper-V
9 30 (0.18%) Xen
10 17 (0.10%) Apache Flume
11 11 (0.067%) vSphere
12 10 (0.061%) Varnish
13 9 (0.055%) Microsoft App-V
14 6 (0.037%) Firmware
15 3 (0.018%) NFS
15 3 (0.018%) Samba
15 3 (0.018%) vCloud
15 3 (0.018%) VMware ESXi
15 3 (0.018%) VMware NSX
16 2 (0.012%) LXC
Systems Management
1 544 (3.32%) Puppet
2 418 (2.55%) Ansible
3 366 (2.24%) Opscode Chef
4 267 (1.63%) Kubernetes
5 226 (1.38%) Kibana
6 140 (0.86%) Terraform
7 87 (0.53%) logstash
8 79 (0.48%) Business Desktop Deployment
9 67 (0.41%) WSUS
10 53 (0.32%) HP Quality Center
11 52 (0.32%) Salt
12 47 (0.29%) Grafana
13 43 (0.26%) Packer
14 32 (0.20%) Control-M
14 32 (0.20%) Mesos
15 24 (0.15%) HAProxy
16 19 (0.12%) Nagios
17 17 (0.10%) HockeyApp
18 16 (0.098%) MOM
19 13 (0.079%) Cobbler
Vendors
1 1892 (11.56%) Microsoft
2 863 (5.27%) Oracle
3 693 (4.23%) Google
4 349 (2.13%) SAP
5 345 (2.11%) Facebook
6 195 (1.19%) Apple
7 170 (1.04%) Xamarin
8 166 (1.01%) IBM
9 150 (0.92%) Sitecore
10 148 (0.90%) Zend
11 138 (0.84%) Atlassian
12 111 (0.68%) Adobe
13 106 (0.65%) hybris
14 101 (0.62%) VMware
15 99 (0.60%) Sony
16 95 (0.58%) Twitter
17 85 (0.52%) Yahoo!
18 78 (0.48%) Cognizant
19 66 (0.40%) Splunk
20 59 (0.36%) Salesforce.com