Period
to 23 September 2018

The following table provides summary statistics for permanent job vacancies advertised in England 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 23 September 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > England
6 months to
23 Sep 2018
Same period 2017 Same period 2016
Rank 23 20 23
Rank change year-on-year -3 +3 +2
Permanent jobs citing TDD 13,107 14,973 15,235
As % of all permanent IT jobs advertised in England 8.50% 9.08% 8.32%
As % of the Processes & Methodologies category 9.33% 9.91% 9.15%
Number of salaries quoted 11,074 12,901 13,922
England median annual salary £55,000 £52,500 £52,500
Median salary % change year-on-year +4.76% - +5.00%
10th Percentile £34,250 £33,556 £32,500
90th Percentile £85,000 £80,000 £78,750
UK median annual salary £55,000 £52,500 £52,500
% change year-on-year +4.76% - +9.38%

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 advertised in England with a requirement for process or methodology skills.

All Process and Methodology Skills
England
Permanent vacancies with a requirement for process or methodology skills 140,420 151,023 166,463
As % of all permanent IT jobs advertised in England 91.07% 91.54% 90.91%
Number of salaries quoted 112,581 120,047 140,346
England median annual salary £50,500 £50,000 £50,000
Median salary % change year-on-year +1.00% - +5.26%
10th Percentile £29,750 £28,500 £27,750
90th Percentile £83,750 £80,000 £78,750
UK median annual salary £50,000 £50,000 £48,000
% change year-on-year - +4.17% +1.05%

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
Salary Trend in England

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

Salary trend for TDD in England

TDD
Salary Histogram in England

The salary distribution of IT jobs citing TDD in England over the 6 months to 23 September 2018.

Salary histogram for TDD in England

TDD
Job Locations in England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the England region over the 6 months to 23 September 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
London -4 6,429 £65,000 +4.00% 1,029
South East -5 2,224 £50,000 +5.26% 306
North of England -2 1,972 £45,000 +5.88% 349
North West 0 1,102 £47,500 +7.95% 195
South West +1 898 £47,500 +5.56% 149
East of England +5 847 £50,000 +1.01% 132
Midlands -4 736 £45,000 +5.88% 193
Yorkshire +3 733 £45,000 +1.19% 123
West Midlands -2 462 £45,000 +12.50% 108
East Midlands -15 274 £45,000 - 84
North East -1 137 £45,000 +12.50% 31
TDD
UK

For the 6 months to 23 September 2018, IT jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the England region with a requirement for TDD.

1 10,089 (76.97%) Agile Software Development
2 5,824 (44.43%) C#
3 5,619 (42.87%) BDD
4 5,312 (40.53%) .NET
5 5,250 (40.05%) JavaScript
6 4,824 (36.80%) Java
7 3,957 (30.19%) Scrum
8 3,848 (29.36%) MVC
9 3,513 (26.80%) Continuous Integration
10 3,508 (26.76%) SQL
11 3,485 (26.59%) SQL Server
12 3,425 (26.13%) AngularJS
13 3,149 (24.03%) HTML
14 3,118 (23.79%) ASP.NET
15 2,894 (22.08%) Git (software)
16 2,846 (21.71%) CSS
17 2,686 (20.49%) Software Engineering
18 2,609 (19.91%) Finance
19 2,600 (19.84%) RESTful
20 2,412 (18.40%) ASP.NET MVC
21 2,274 (17.35%) Amazon AWS
22 2,253 (17.19%) Microservices
23 2,231 (17.02%) Test Automation
24 2,168 (16.54%) ASP.NET Web API
25 2,015 (15.37%) DevOps
26 1,989 (15.18%) Microsoft Azure
27 1,984 (15.14%) Node.js
28 1,959 (14.95%) Web Services
29 1,952 (14.89%) OO
30 1,867 (14.24%) Spring

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
1 490 (3.74%) Elasticsearch
2 411 (3.14%) CMS
3 343 (2.62%) Confluence
4 300 (2.29%) Apache Spark
5 259 (1.98%) Tomcat
6 213 (1.63%) Apache
7 202 (1.54%) JBoss
8 192 (1.46%) EPiServer
9 159 (1.21%) IIS
10 135 (1.03%) WebSphere
11 128 (0.98%) SharePoint
12 125 (0.95%) Sitecore CMS
13 116 (0.89%) Umbraco
14 91 (0.69%) Cloud Foundry
14 91 (0.69%) nginx
15 82 (0.63%) OpenStack
16 78 (0.60%) NServiceBus
17 77 (0.59%) WebLogic
18 71 (0.54%) WordPress
19 59 (0.45%) Mule
Applications
1 64 (0.49%) Microsoft Excel
2 22 (0.17%) Microsoft Project
3 21 (0.16%) Photoshop
3 21 (0.16%) Spreadsheet
4 20 (0.15%) Microsoft Office
5 19 (0.14%) Chatbot
6 18 (0.14%) MS Visio
7 10 (0.076%) Microsoft PowerPoint
8 6 (0.046%) Maya
9 4 (0.031%) Doxygen
9 4 (0.031%) Snapchat
10 3 (0.023%) Adobe Premiere
10 3 (0.023%) LibreOffice
11 2 (0.015%) Adobe Illustrator
11 2 (0.015%) GIMP
11 2 (0.015%) Mingle
11 2 (0.015%) Open Workbench
12 1 (0.008%) Blender
12 1 (0.008%) Mathcad
12 1 (0.008%) OmniGraffle
Business Applications
1 61 (0.47%) Dynamics CRM
2 59 (0.45%) Payment Gateway
3 48 (0.37%) Eloqua
4 38 (0.29%) Magento
5 33 (0.25%) thinkFolio
6 29 (0.22%) Markit EDM
7 28 (0.21%) Eagle PACE
7 28 (0.21%) Front Arena
8 18 (0.14%) Dynamics AX
8 18 (0.14%) Dynamics NAV
9 15 (0.11%) Bloomberg AIM
10 11 (0.084%) Distributed Ledger
10 11 (0.084%) SAP Hybris
11 8 (0.061%) SAP FI
12 6 (0.046%) FastStats
12 6 (0.046%) Oracle EBS
12 6 (0.046%) Oracle Retail
13 5 (0.038%) LatentZero
13 5 (0.038%) SAP QM
13 5 (0.038%) SAP SD
Cloud Services
1 2,274 (17.35%) Amazon AWS
2 1,989 (15.18%) Microsoft Azure
3 373 (2.85%) GitHub
4 332 (2.53%) SaaS
5 323 (2.46%) Google Cloud Platform
6 319 (2.43%) Serverless
7 287 (2.19%) npm
8 151 (1.15%) PaaS
9 140 (1.07%) Amazon EC2
10 125 (0.95%) AWS Lambda
11 122 (0.93%) IaaS
12 120 (0.92%) Cloud Computing
13 83 (0.63%) OpenShift
14 78 (0.60%) Amazon S3
15 77 (0.59%) Slack
16 67 (0.51%) Office 365
17 53 (0.40%) Amazon SQS
18 47 (0.36%) Google Play
19 46 (0.35%) AWS CloudFormation
20 44 (0.34%) Yarn
Communications & Networking
1 415 (3.17%) Internet
2 268 (2.04%) HTTP
3 66 (0.50%) Hyperconnected
4 58 (0.44%) TCP/IP
5 57 (0.43%) Broadband
6 52 (0.40%) SSL
7 37 (0.28%) Wireless
8 35 (0.27%) AMQP
9 32 (0.24%) SMS
10 25 (0.19%) Wi-Fi
11 24 (0.18%) DNS
12 18 (0.14%) IPv4
12 18 (0.14%) IPv6
13 17 (0.13%) Bluetooth
14 15 (0.11%) Intranet
14 15 (0.11%) Skype
15 14 (0.11%) VLAN
16 11 (0.084%) Network Security
17 10 (0.076%) Firewall
18 9 (0.069%) OpenLDAP
Database & Business Intelligence
1 3,485 (26.59%) SQL Server
2 1,772 (13.52%) NoSQL
3 1,361 (10.38%) SQL Server 2016
4 853 (6.51%) MongoDB
5 776 (5.92%) MySQL
6 706 (5.39%) Big Data
7 554 (4.23%) Relational Database
8 520 (3.97%) PostgreSQL
9 279 (2.13%) Hadoop
10 261 (1.99%) Redis
11 220 (1.68%) Apache Cassandra
12 210 (1.60%) Blockchain
13 196 (1.50%) RDBMS
14 158 (1.21%) SQL Server Integration Services
15 154 (1.17%) SQL Server 2012
16 143 (1.09%) Amazon DynamoDB
17 122 (0.93%) Data Warehouse
18 116 (0.89%) Couchbase
19 107 (0.82%) SQL Server Reporting Services
20 105 (0.80%) SQL Server 2014
Development Applications
1 2,894 (22.08%) Git (software)
2 1,411 (10.77%) Jenkins
3 1,238 (9.45%) Selenium
4 999 (7.62%) JIRA
5 773 (5.90%) Visual Studio
6 745 (5.68%) Cucumber
7 714 (5.45%) Maven
8 697 (5.32%) TeamCity
9 680 (5.19%) Team Foundation Server
10 655 (5.00%) JUnit
11 597 (4.55%) NUnit
12 445 (3.40%) Subversion
13 397 (3.03%) gulp
14 367 (2.80%) SpecFlow
15 348 (2.66%) WebDriver
16 346 (2.64%) webpack
17 330 (2.52%) Octopus Deploy
18 320 (2.44%) Gradle
19 298 (2.27%) Mocha
20 278 (2.12%) Jasmine
General
1 2,609 (19.91%) Finance
2 854 (6.52%) Banking
2 854 (6.52%) Games
3 733 (5.59%) Retail
4 496 (3.78%) Marketing
5 365 (2.78%) Advertising
6 316 (2.41%) Investment Banking
7 292 (2.23%) Telecoms
8 255 (1.95%) Financial Institution
9 203 (1.55%) Electronics
10 189 (1.44%) Front Office
11 176 (1.34%) Manufacturing
12 170 (1.30%) Law
13 105 (0.80%) Publishing
14 99 (0.76%) Automotive
15 93 (0.71%) Back Office
16 81 (0.62%) Legal
17 55 (0.42%) Music Industry
18 47 (0.36%) Military
19 42 (0.32%) Pharmaceutical
Job Titles
1 9,198 (70.18%) Developer
2 3,221 (24.57%) .NET Developer
3 2,310 (17.62%) C# Developer
4 2,272 (17.33%) Java Developer
5 1,915 (14.61%) Senior Developer
6 1,581 (12.06%) C# .NET Developer
7 1,251 (9.54%) Software Engineer
8 1,024 (7.81%) Software Developer
9 729 (5.56%) ASP.NET Developer
10 681 (5.20%) C# ASP.NET Developer
11 634 (4.84%) Senior Java Developer
12 623 (4.75%) Lead Developer
13 600 (4.58%) JavaScript Developer
14 546 (4.17%) ASP.NET MVC Developer
15 516 (3.94%) Front End Developer (Client-Side Developer)
16 482 (3.68%) Senior .NET Developer
17 461 (3.52%) Full Stack Developer
18 444 (3.39%) Agile Developer
19 437 (3.33%) Java Engineer
20 384 (2.93%) .NET Software Developer
Libraries, Frameworks & Software Standards
1 5,312 (40.53%) .NET
2 3,425 (26.13%) AngularJS
3 3,149 (24.03%) HTML
4 3,118 (23.79%) ASP.NET
5 2,846 (21.71%) CSS
6 2,600 (19.84%) RESTful
7 2,412 (18.40%) ASP.NET MVC
8 2,168 (16.54%) ASP.NET Web API
9 1,984 (15.14%) Node.js
10 1,959 (14.95%) Web Services
11 1,867 (14.24%) Spring
12 1,815 (13.85%) React
13 1,623 (12.38%) REST
14 1,508 (11.51%) .NET Framework
15 1,423 (10.86%) HTML5
16 1,397 (10.66%) WCF
17 1,231 (9.39%) jQuery
18 1,036 (7.90%) Entity Framework
19 938 (7.16%) Twitter Bootstrap
20 879 (6.71%) CSS3
Miscellaneous
1 1,600 (12.21%) Greenfield Project
2 1,034 (7.89%) User Experience
3 968 (7.39%) Computer Science
4 759 (5.79%) Fintech
5 626 (4.78%) Analytical Skills
6 569 (4.34%) Enterprise Software
7 566 (4.32%) Mobile App
8 332 (2.53%) Self-Motivation
9 221 (1.69%) Algorithms
10 175 (1.34%) Data Structures
11 173 (1.32%) Cyberthreat
12 147 (1.12%) Hedge funds
13 144 (1.10%) Equities
14 128 (0.98%) Fixed Income
15 124 (0.95%) Derivative
16 114 (0.87%) Foreign Exchange (FX)
17 102 (0.78%) Cloud Native
18 93 (0.71%) Tandem
19 89 (0.68%) Social Network
20 87 (0.66%) Blog
Operating Systems
1 1,146 (8.74%) Linux
2 756 (5.77%) Windows
3 512 (3.91%) Android
4 398 (3.04%) Apple iOS
5 292 (2.23%) Unix
6 54 (0.41%) Windows Server
7 31 (0.24%) CentOS
8 28 (0.21%) Mac OS X
8 28 (0.21%) Ubuntu
9 25 (0.19%) Mac OS
10 21 (0.16%) Nucleus RTOS
11 18 (0.14%) Embedded Linux
11 18 (0.14%) FreeBSD
11 18 (0.14%) Red Hat Enterprise Linux
12 15 (0.11%) VMS
13 14 (0.11%) openSUSE
13 14 (0.11%) Windows Phone
14 6 (0.046%) Windows 10
15 5 (0.038%) Debian
15 5 (0.038%) Windows 7
Processes & Methodologies
1 10,089 (76.97%) Agile Software Development
2 5,619 (42.87%) BDD
3 3,957 (30.19%) Scrum
4 3,848 (29.36%) MVC
5 3,513 (26.80%) Continuous Integration
6 2,686 (20.49%) Software Engineering
7 2,253 (17.19%) Microservices
8 2,231 (17.02%) Test Automation
9 2,015 (15.37%) DevOps
10 1,952 (14.89%) OO
11 1,674 (12.77%) Kanban
12 1,536 (11.72%) Problem-Solving
13 1,422 (10.85%) Web Application Development
14 1,347 (10.28%) Unit Testing
15 1,230 (9.38%) SOLID
16 1,170 (8.93%) Continuous Delivery
17 1,143 (8.72%) Mentoring
18 1,124 (8.58%) Pair Programming
19 1,011 (7.71%) Web Development
20 1,008 (7.69%) SDLC
Programming Languages
1 5,824 (44.43%) C#
2 5,250 (40.05%) JavaScript
3 4,824 (36.80%) Java
4 3,508 (26.76%) SQL
5 1,578 (12.04%) Python
6 1,289 (9.83%) Java 8
7 1,267 (9.67%) Ruby
8 857 (6.54%) Scala
9 771 (5.88%) C++
10 766 (5.84%) PHP
11 555 (4.23%) TypeScript
12 526 (4.01%) T-SQL
13 372 (2.84%) ES6
14 355 (2.71%) C
15 241 (1.84%) PowerShell
16 239 (1.82%) Go
17 219 (1.67%) VB.NET
18 179 (1.37%) Apple Swift
19 169 (1.29%) Groovy
20 155 (1.18%) F#
Qualifications
1 1,417 (10.81%) Degree
2 487 (3.72%) Computer Science Degree
3 361 (2.75%) Security Cleared
4 201 (1.53%) SC Cleared
5 142 (1.08%) DV Cleared
6 109 (0.83%) Microsoft Certification
7 94 (0.72%) ISTQB
8 88 (0.67%) ISEB
9 68 (0.52%) Master's Degree
10 51 (0.39%) SAFe Agilist
11 38 (0.29%) Numerate Degree
12 30 (0.23%) MCPD
13 29 (0.22%) AWS Certification
14 21 (0.16%) ISTQB Foundation Certification
15 17 (0.13%) PhD
15 17 (0.13%) PMI Certification
16 13 (0.099%) OCPJP
17 11 (0.084%) HND
18 9 (0.069%) MCSD
19 6 (0.046%) GSEC
Quality Assurance & Compliance
1 1,054 (8.04%) QA
2 53 (0.40%) GDPR
3 28 (0.21%) Data Quality
4 24 (0.18%) SLA
4 24 (0.18%) WCAG
5 22 (0.17%) PCI DSS
5 22 (0.17%) PMO
6 15 (0.11%) ISO/IEC 27001
7 12 (0.092%) PSD2
8 6 (0.046%) PMBOK
9 4 (0.031%) DICOM
9 4 (0.031%) EMIR
9 4 (0.031%) FATCA
9 4 (0.031%) MiFID
10 3 (0.023%) PA-DSS
11 2 (0.015%) ISO 9001
11 2 (0.015%) MISRA
11 2 (0.015%) SEPA
11 2 (0.015%) Web Application Security Consortium
12 1 (0.008%) JTAG
System Software
1 1,350 (10.30%) Docker
2 60 (0.46%) Active Directory
3 48 (0.37%) VMware Infrastructure
4 44 (0.34%) HDFS
5 33 (0.25%) Virtual Machines
6 24 (0.18%) VirtualBox
7 21 (0.16%) Apache ZooKeeper
8 20 (0.15%) Hyper-V
9 18 (0.14%) vSphere
10 7 (0.053%) KVM
10 7 (0.053%) LXC
11 6 (0.046%) Varnish
12 5 (0.038%) Xen
13 4 (0.031%) Firmware
14 3 (0.023%) Apache Flume
14 3 (0.023%) Oracle RAC
14 3 (0.023%) VMware ESXi
14 3 (0.023%) zsh
15 2 (0.015%) FreeRADIUS
16 1 (0.008%) Shibboleth
Systems Management
1 489 (3.73%) Kubernetes
2 427 (3.26%) Ansible
3 285 (2.17%) Opscode Chef
4 262 (2.00%) Puppet
5 232 (1.77%) Terraform
6 141 (1.08%) Kibana
7 55 (0.42%) Salt
8 37 (0.28%) Mesos
9 33 (0.25%) HP Quality Center
10 28 (0.21%) Grafana
11 27 (0.21%) HockeyApp
12 25 (0.19%) Icinga
13 21 (0.16%) Business Desktop Deployment
14 18 (0.14%) logstash
15 17 (0.13%) HP ALM
15 17 (0.13%) Prometheus
15 17 (0.13%) WSUS
16 16 (0.12%) Rancher
16 16 (0.12%) ZABBIX
17 12 (0.092%) Hadoop YARN
Vendors
1 1,640 (12.51%) Microsoft
2 686 (5.23%) Oracle
3 653 (4.98%) Google
4 226 (1.72%) Facebook
4 226 (1.72%) Xamarin
5 198 (1.51%) SAP
6 155 (1.18%) Sitecore
7 151 (1.15%) Apple
8 134 (1.02%) Atlassian
9 103 (0.79%) Sybase
10 96 (0.73%) Twitter
11 94 (0.72%) Splunk
12 82 (0.63%) Tableau
13 77 (0.59%) VMware
14 73 (0.56%) IBM
15 67 (0.51%) Zend
16 66 (0.50%) Salesforce.com
17 64 (0.49%) Yahoo!
18 60 (0.46%) Sony
19 58 (0.44%) Adobe