Period
to 20 August 2018

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 20 August 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK
6 months to
20 Aug 2018
Same period 2017 Same period 2016
Rank 23 20 23
Rank change year-on-year -3 +3 +3
Permanent jobs citing TDD 14,645 16,249 15,981
As % of all permanent IT jobs advertised in the UK 8.67% 9.24% 8.11%
As % of the Processes & Methodologies category 9.51% 10.09% 8.92%
Number of salaries quoted 12,403 14,000 14,386
UK median annual salary £52,500 £52,000 £52,250
Median salary % change year-on-year +0.96% -0.48% +4.50%
10th Percentile £33,750 £32,500 £32,500
90th Percentile £85,000 £80,000 £77,500
UK excluding London median annual salary £47,500 £45,000 £45,000
% change year-on-year +5.56% - +5.88%

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 153,965 161,029 179,081
As % of all permanent IT jobs advertised in the UK 91.10% 91.53% 90.83%
Number of salaries quoted 122,609 128,176 149,466
UK median annual salary £50,000 £50,000 £48,000
Median salary % change year-on-year - +4.17% +1.05%
10th Percentile £29,000 £28,000 £27,500
90th Percentile £82,500 £80,000 £77,500
UK excluding London median annual salary £45,000 £42,500 £42,500
% change year-on-year +5.88% - +0.71%

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 20 August 2018.

Salary histogram for TDD in the UK

TDD
Top 17 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 20 August 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
England -4 13,721 £55,000 +4.76% 2,021
UK excluding London 0 7,806 £47,500 +5.56% 1,072
London -6 6,635 £65,000 +4.00% 1,027
South East -4 2,360 £47,500 - 253
North of England 0 2,095 £45,000 +5.88% 326
North West +2 1,185 £47,500 +11.76% 199
South West +1 946 £47,500 +5.56% 122
East of England +7 907 £50,000 +1.01% 142
Midlands -6 779 £45,000 +5.88% 151
Yorkshire 0 758 £45,000 +5.88% 104
Scotland -3 531 £50,000 +5.26% 43
West Midlands -7 488 £45,000 +5.88% 83
East Midlands -15 291 £42,500 -5.56% 67
Wales +12 162 £42,500 +2.41% 19
North East +2 153 £45,000 +12.50% 23
Northern Ireland +21 41 £40,000 +6.67% 16
Channel Islands - 1 £42,500 -

For the 6 months to 20 August 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 with a requirement for TDD.

1 11,330 (77.36%) Agile Software Development
2 6,533 (44.61%) C#
3 6,372 (43.51%) BDD
4 5,979 (40.83%) .NET
5 5,709 (38.98%) JavaScript
6 5,486 (37.46%) Java
7 4,482 (30.60%) Scrum
8 4,439 (30.31%) MVC
9 4,028 (27.50%) SQL Server
10 3,900 (26.63%) Continuous Integration
11 3,888 (26.55%) SQL
12 3,805 (25.98%) AngularJS
13 3,617 (24.70%) ASP.NET
14 3,532 (24.12%) HTML
15 3,289 (22.46%) Git (software)
16 3,213 (21.94%) CSS
17 3,075 (21.00%) RESTful
18 3,039 (20.75%) Software Engineering
19 2,964 (20.24%) Finance
20 2,854 (19.49%) ASP.NET MVC
21 2,640 (18.03%) Test Automation
22 2,521 (17.21%) ASP.NET Web API
23 2,406 (16.43%) Amazon AWS
24 2,346 (16.02%) Microservices
25 2,261 (15.44%) Node.js
26 2,226 (15.20%) OO
27 2,203 (15.04%) NoSQL
28 2,169 (14.81%) Web Services
29 2,126 (14.52%) DevOps
30 2,082 (14.22%) Spring

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
1 553 (3.78%) Elasticsearch
2 418 (2.85%) CMS
3 353 (2.41%) Confluence
4 344 (2.35%) Apache Spark
5 326 (2.23%) Tomcat
6 252 (1.72%) JBoss
7 215 (1.47%) Apache
8 188 (1.28%) EPiServer
9 163 (1.11%) IIS
10 158 (1.08%) WebSphere
11 140 (0.96%) SharePoint
12 131 (0.89%) Sitecore CMS
13 129 (0.88%) Umbraco
14 100 (0.68%) NServiceBus
15 97 (0.66%) Cloud Foundry
15 97 (0.66%) nginx
15 97 (0.66%) WebLogic
16 95 (0.65%) OpenStack
17 78 (0.53%) Mule
18 67 (0.46%) MQSeries
Applications
1 68 (0.46%) Microsoft Excel
2 21 (0.14%) Microsoft Office
2 21 (0.14%) Photoshop
3 20 (0.14%) Chatbot
4 19 (0.13%) Microsoft Project
5 18 (0.12%) Spreadsheet
6 17 (0.12%) MS Visio
7 11 (0.075%) Microsoft PowerPoint
8 7 (0.048%) Adobe Premiere
9 6 (0.041%) Adobe Illustrator
9 6 (0.041%) Maya
10 4 (0.027%) Doxygen
11 3 (0.020%) LibreOffice
12 2 (0.014%) GIMP
12 2 (0.014%) Mingle
13 1 (0.007%) Blender
13 1 (0.007%) EngageOne
13 1 (0.007%) Fireworks
13 1 (0.007%) Open Workbench
13 1 (0.007%) Simulink
Business Applications
1 69 (0.47%) Dynamics CRM
2 65 (0.44%) Payment Gateway
3 42 (0.29%) Eloqua
4 33 (0.23%) Magento
4 33 (0.23%) thinkFolio
5 29 (0.20%) Dynamics NAV
6 28 (0.19%) Eagle PACE
6 28 (0.19%) Front Arena
6 28 (0.19%) Markit EDM
7 20 (0.14%) Distributed Ledger
8 16 (0.11%) Dynamics AX
9 15 (0.10%) Bloomberg AIM
10 10 (0.068%) SAP Hybris
11 7 (0.048%) BusinessWorks
11 7 (0.048%) Salesforce.com CRM
11 7 (0.048%) SAP FI
12 5 (0.034%) Adobe Campaign
12 5 (0.034%) FastStats
12 5 (0.034%) SAP MM
12 5 (0.034%) SAP PP
Cloud Services
1 2,406 (16.43%) Amazon AWS
2 2,032 (13.88%) Microsoft Azure
3 449 (3.07%) GitHub
4 368 (2.51%) SaaS
5 306 (2.09%) Google Cloud Platform
6 305 (2.08%) Serverless
7 304 (2.08%) npm
8 157 (1.07%) PaaS
9 155 (1.06%) Amazon EC2
10 137 (0.94%) Cloud Computing
11 134 (0.91%) IaaS
12 131 (0.89%) AWS Lambda
13 115 (0.79%) Slack
14 91 (0.62%) Amazon S3
15 85 (0.58%) OpenShift
16 77 (0.53%) Office 365
17 63 (0.43%) AWS CloudFormation
18 59 (0.40%) Google Play
18 59 (0.40%) NuGet
19 55 (0.38%) Amazon SQS
Communications & Networking
1 445 (3.04%) Internet
2 306 (2.09%) HTTP
3 84 (0.57%) Hyperconnected
4 67 (0.46%) Broadband
5 57 (0.39%) TCP/IP
6 53 (0.36%) SSL
7 48 (0.33%) Wireless
8 43 (0.29%) AMQP
9 36 (0.25%) SMS
10 32 (0.22%) IPv4
11 31 (0.21%) IPv6
12 26 (0.18%) DNS
13 22 (0.15%) Wi-Fi
14 21 (0.14%) VLAN
15 19 (0.13%) Intranet
16 16 (0.11%) Bluetooth
17 15 (0.10%) Skype
18 11 (0.075%) VPN
19 10 (0.068%) Network Security
20 9 (0.061%) FIX Connectivity
Database & Business Intelligence
1 4,028 (27.50%) SQL Server
2 2,203 (15.04%) NoSQL
3 1,633 (11.15%) SQL Server 2016
4 978 (6.68%) MongoDB
5 876 (5.98%) MySQL
6 802 (5.48%) Big Data
7 696 (4.75%) Relational Database
8 642 (4.38%) PostgreSQL
9 354 (2.42%) Hadoop
10 339 (2.31%) Redis
11 333 (2.27%) Apache Cassandra
12 253 (1.73%) Blockchain
13 221 (1.51%) RDBMS
14 166 (1.13%) Amazon DynamoDB
15 164 (1.12%) SQL Server Integration Services
16 149 (1.02%) SQL Server 2012
17 140 (0.96%) Data Warehouse
18 134 (0.91%) Couchbase
19 122 (0.83%) Neo4j
20 108 (0.74%) SQL Server 2014
Development Applications
1 3,289 (22.46%) Git (software)
2 1,545 (10.55%) Jenkins
3 1,381 (9.43%) Selenium
4 1,069 (7.30%) JIRA
5 859 (5.87%) Cucumber
6 813 (5.55%) Maven
7 779 (5.32%) Visual Studio
8 769 (5.25%) JUnit
9 734 (5.01%) Team Foundation Server
10 711 (4.85%) TeamCity
11 677 (4.62%) NUnit
12 537 (3.67%) Subversion
13 416 (2.84%) gulp
14 386 (2.64%) WebDriver
15 382 (2.61%) SpecFlow
15 382 (2.61%) webpack
16 376 (2.57%) Gradle
17 366 (2.50%) Octopus Deploy
18 305 (2.08%) Atlassian Bamboo
19 303 (2.07%) Mocha
General
1 2,964 (20.24%) Finance
2 959 (6.55%) Banking
3 901 (6.15%) Games
4 849 (5.80%) Retail
5 542 (3.70%) Marketing
6 444 (3.03%) Advertising
7 364 (2.49%) Investment Banking
8 335 (2.29%) Telecoms
9 283 (1.93%) Financial Institution
10 222 (1.52%) Electronics
11 191 (1.30%) Manufacturing
12 182 (1.24%) Front Office
13 171 (1.17%) Law
14 101 (0.69%) Publishing
15 100 (0.68%) Back Office
16 98 (0.67%) Legal
17 91 (0.62%) Automotive
18 74 (0.51%) Music Industry
19 47 (0.32%) Military
20 42 (0.29%) Multimedia
Job Titles
1 10,270 (70.13%) Developer
2 3,695 (25.23%) .NET Developer
3 2,546 (17.38%) C# Developer
4 2,501 (17.08%) Java Developer
5 2,062 (14.08%) Senior Developer
6 1,759 (12.01%) C# .NET Developer
7 1,409 (9.62%) Software Engineer
8 1,160 (7.92%) Software Developer
9 853 (5.82%) ASP.NET Developer
10 816 (5.57%) C# ASP.NET Developer
11 708 (4.83%) Senior Java Developer
12 690 (4.71%) JavaScript Developer
13 658 (4.49%) ASP.NET MVC Developer
14 624 (4.26%) Lead Developer
15 569 (3.89%) Java Engineer
16 544 (3.71%) Front End Developer (Client-Side Developer)
17 515 (3.52%) Senior .NET Developer
18 494 (3.37%) Full Stack Developer
19 469 (3.20%) Agile Developer
20 435 (2.97%) .NET Software Developer
Libraries, Frameworks & Software Standards
1 5,979 (40.83%) .NET
2 3,805 (25.98%) AngularJS
3 3,617 (24.70%) ASP.NET
4 3,532 (24.12%) HTML
5 3,213 (21.94%) CSS
6 3,075 (21.00%) RESTful
7 2,854 (19.49%) ASP.NET MVC
8 2,521 (17.21%) ASP.NET Web API
9 2,261 (15.44%) Node.js
10 2,169 (14.81%) Web Services
11 2,082 (14.22%) Spring
12 1,978 (13.51%) React
13 1,785 (12.19%) .NET Framework
14 1,781 (12.16%) REST
15 1,683 (11.49%) WCF
16 1,633 (11.15%) HTML5
17 1,321 (9.02%) jQuery
18 1,224 (8.36%) Entity Framework
19 1,219 (8.32%) ASP.NET MVC 5
20 998 (6.81%) Twitter Bootstrap
Miscellaneous
1 1,681 (11.48%) Greenfield Project
2 1,140 (7.78%) User Experience
3 1,059 (7.23%) Computer Science
4 867 (5.92%) Fintech
5 696 (4.75%) Enterprise Software
6 665 (4.54%) Analytical Skills
6 665 (4.54%) Mobile App
7 319 (2.18%) Self-Motivation
8 261 (1.78%) Algorithms
9 203 (1.39%) Data Structures
10 188 (1.28%) Cyberthreat
11 162 (1.11%) Hedge funds
12 154 (1.05%) Equities
13 139 (0.95%) Virtual Team
14 134 (0.91%) Fixed Income
15 121 (0.83%) Foreign Exchange (FX)
16 114 (0.78%) Derivative
17 113 (0.77%) Cloud Native
18 104 (0.71%) Tandem
19 98 (0.67%) Social Media
Operating Systems
1 1,351 (9.22%) Linux
2 856 (5.84%) Windows
3 582 (3.97%) Android
4 451 (3.08%) Apple iOS
5 349 (2.38%) Unix
6 54 (0.37%) Windows Server
7 38 (0.26%) Ubuntu
8 37 (0.25%) Mac OS
9 29 (0.20%) CentOS
9 29 (0.20%) Embedded Linux
10 28 (0.19%) Mac OS X
11 24 (0.16%) Nucleus RTOS
12 23 (0.16%) Red Hat Enterprise Linux
13 21 (0.14%) FreeBSD
13 21 (0.14%) VMS
14 16 (0.11%) Windows Phone
15 12 (0.082%) Amazon Linux
15 12 (0.082%) openSUSE
16 11 (0.075%) Solaris
17 8 (0.055%) Debian
Processes & Methodologies
1 11,330 (77.36%) Agile Software Development
2 6,372 (43.51%) BDD
3 4,482 (30.60%) Scrum
4 4,439 (30.31%) MVC
5 3,900 (26.63%) Continuous Integration
6 3,039 (20.75%) Software Engineering
7 2,640 (18.03%) Test Automation
8 2,346 (16.02%) Microservices
9 2,226 (15.20%) OO
10 2,126 (14.52%) DevOps
11 1,837 (12.54%) Kanban
12 1,747 (11.93%) Web Application Development
13 1,681 (11.48%) Problem-Solving
14 1,555 (10.62%) Unit Testing
15 1,282 (8.75%) SOLID
16 1,232 (8.41%) Mentoring
17 1,199 (8.19%) Continuous Delivery
18 1,198 (8.18%) SDLC
19 1,158 (7.91%) Pair Programming
20 1,117 (7.63%) Web Development
Programming Languages
1 6,533 (44.61%) C#
2 5,709 (38.98%) JavaScript
3 5,486 (37.46%) Java
4 3,888 (26.55%) SQL
5 1,826 (12.47%) Python
6 1,601 (10.93%) Ruby
7 1,361 (9.29%) Java 8
8 918 (6.27%) Scala
9 856 (5.84%) C++
10 845 (5.77%) PHP
11 628 (4.29%) TypeScript
12 565 (3.86%) T-SQL
13 409 (2.79%) C
14 387 (2.64%) ES6
15 278 (1.90%) VB.NET
16 270 (1.84%) Go
17 246 (1.68%) PowerShell
18 212 (1.45%) Groovy
19 207 (1.41%) Bash Shell
20 186 (1.27%) Apple Swift
Qualifications
1 1,563 (10.67%) Degree
2 538 (3.67%) Computer Science Degree
3 377 (2.57%) Security Cleared
4 203 (1.39%) SC Cleared
5 138 (0.94%) DV Cleared
6 112 (0.76%) Microsoft Certification
7 111 (0.76%) ISTQB
8 98 (0.67%) ISEB
9 74 (0.51%) Master's Degree
10 47 (0.32%) SAFe Agilist
11 40 (0.27%) AWS Certification
12 39 (0.27%) Numerate Degree
13 36 (0.25%) MCPD
14 30 (0.20%) ISTQB Foundation Certification
15 22 (0.15%) PhD
16 19 (0.13%) PMI Certification
17 12 (0.082%) HND
17 12 (0.082%) OCPJP
18 11 (0.075%) PMP
18 11 (0.075%) Sun Certification
Quality Assurance & Compliance
1 1,177 (8.04%) QA
2 106 (0.72%) GCP
3 63 (0.43%) GDPR
4 36 (0.25%) PCI DSS
5 28 (0.19%) WCAG
6 27 (0.18%) SLA
7 25 (0.17%) Data Quality
8 18 (0.12%) PMO
9 17 (0.12%) ISO/IEC 27001
10 12 (0.082%) PSD2
11 6 (0.041%) EMIR
11 6 (0.041%) GAMP
11 6 (0.041%) Web Application Security Consortium
12 5 (0.034%) MiFID
12 5 (0.034%) SEPA
13 4 (0.027%) COBIT
13 4 (0.027%) DICOM
13 4 (0.027%) FATCA
14 3 (0.020%) ISO 9001
14 3 (0.020%) PA-DSS
System Software
1 1,472 (10.05%) Docker
2 71 (0.48%) VMware Infrastructure
3 65 (0.44%) Active Directory
4 48 (0.33%) HDFS
5 37 (0.25%) Virtual Machines
6 30 (0.20%) Hyper-V
7 28 (0.19%) VirtualBox
8 21 (0.14%) vSphere
9 17 (0.12%) Apache ZooKeeper
10 14 (0.096%) Xen
11 13 (0.089%) Firmware
12 9 (0.061%) VMware ESXi
13 7 (0.048%) iptables
13 7 (0.048%) KVM
13 7 (0.048%) LXC
13 7 (0.048%) VMware Server
14 6 (0.041%) Varnish
15 4 (0.027%) Apache Flume
16 3 (0.020%) Oracle RAC
16 3 (0.020%) zsh
Systems Management
1 491 (3.35%) Kubernetes
2 489 (3.34%) Ansible
3 322 (2.20%) Opscode Chef
4 302 (2.06%) Puppet
5 259 (1.77%) Terraform
6 153 (1.04%) Kibana
7 51 (0.35%) Salt
8 42 (0.29%) Mesos
9 37 (0.25%) HockeyApp
10 35 (0.24%) HP Quality Center
11 30 (0.20%) Business Desktop Deployment
12 28 (0.19%) Grafana
12 28 (0.19%) Icinga
13 24 (0.16%) WSUS
14 23 (0.16%) logstash
15 22 (0.15%) Cobbler
16 21 (0.14%) Marathon
16 21 (0.14%) Packer
17 17 (0.12%) HP ALM
18 16 (0.11%) Prometheus
Vendors
1 1,755 (11.98%) Microsoft
2 795 (5.43%) Oracle
3 677 (4.62%) Google
4 287 (1.96%) Facebook
5 227 (1.55%) Xamarin
6 193 (1.32%) SAP
7 159 (1.09%) Apple
8 158 (1.08%) Sitecore
9 154 (1.05%) Atlassian
10 138 (0.94%) Sybase
11 106 (0.72%) VMware
12 105 (0.72%) Twitter
13 100 (0.68%) Splunk
14 95 (0.65%) Capita
15 94 (0.64%) IBM
16 84 (0.57%) Tableau
17 77 (0.53%) Salesforce.com
17 77 (0.53%) WorldPay
18 66 (0.45%) Yahoo!
18 66 (0.45%) Zend