Period
to 23 September 2019

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 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > England
6 months to
23 Sep 2019
Same period 2018 Same period 2017
Rank 29 23 20
Rank change year-on-year -6 -3 +3
Permanent jobs citing TDD 8,771 13,107 14,973
As % of all permanent IT jobs advertised in England 6.78% 8.50% 9.08%
As % of the Processes & Methodologies category 7.36% 9.26% 9.83%
Number of salaries quoted 7,106 11,074 12,901
England median annual salary £57,500 £55,000 £52,500
Median salary % change year-on-year +4.55% +4.76% -
10th Percentile £35,000 £34,250 £33,556
90th Percentile £87,500 £85,000 £80,000
UK median annual salary £57,500 £55,000 £52,500
% change year-on-year +4.55% +4.76% -

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 119,166 141,527 152,293
As % of all permanent IT jobs advertised in England 92.12% 91.78% 92.31%
Number of salaries quoted 94,410 113,518 121,097
England median annual salary £52,500 £50,140 £50,000
Median salary % change year-on-year +4.71% +0.28% -
10th Percentile £30,000 £29,500 £28,250
90th Percentile £87,500 £83,750 £80,000
UK median annual salary £52,500 £50,000 £50,000
% change year-on-year +5.00% - +4.17%

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 2019.

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 2019. 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 -3 4,587 £67,500 +3.85% 776
South East -6 1,582 £52,500 +5.00% 228
North of England -12 1,225 £50,000 +11.11% 304
North West -10 753 £55,000 +15.79% 188
South West -28 524 £45,000 -5.26% 113
Midlands -37 433 £47,500 +5.56% 140
East of England -13 408 £52,500 +5.00% 99
Yorkshire -31 406 £47,500 +5.56% 92
West Midlands -39 254 £50,000 +11.11% 89
East Midlands -16 177 £45,000 - 50
North East -7 66 £43,000 -4.44% 24
TDD
UK

For the 6 months to 23 September 2019, 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 6,448 (73.51%) Agile Software Development
2 3,627 (41.35%) BDD
3 3,626 (41.34%) JavaScript
4 3,404 (38.81%) C#
5 3,242 (36.96%) Java
6 3,043 (34.69%) .NET
7 2,518 (28.71%) Scrum
8 2,131 (24.30%) Continuous Integration
9 2,107 (24.02%) SQL
10 2,078 (23.69%) Git (software)
11 2,056 (23.44%) HTML
12 2,016 (22.98%) AngularJS
13 1,957 (22.31%) MVC
14 1,926 (21.96%) Software Engineering
15 1,909 (21.76%) AWS
16 1,890 (21.55%) DevOps
17 1,879 (21.42%) CSS
18 1,833 (20.90%) Test Automation
19 1,778 (20.27%) Microservices
20 1,685 (19.21%) SQL Server
21 1,673 (19.07%) ASP.NET
22 1,643 (18.73%) Azure
23 1,636 (18.65%) React
24 1,516 (17.28%) Docker
25 1,403 (16.00%) RESTful
26 1,376 (15.69%) Finance
27 1,327 (15.13%) Spring
28 1,281 (14.60%) Node.js
29 1,184 (13.50%) OO
30 1,182 (13.48%) REST

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
1 391 (4.46%) Confluence
2 280 (3.19%) Elasticsearch
3 150 (1.71%) Apache Spark
4 142 (1.62%) Apache
5 140 (1.60%) CMS
6 103 (1.17%) IIS
7 93 (1.06%) Tomcat
8 82 (0.93%) WordPress
9 74 (0.84%) JBoss
10 67 (0.76%) Umbraco
11 65 (0.74%) nginx
11 65 (0.74%) Sitecore CMS
12 58 (0.66%) Cloud Foundry
13 48 (0.55%) Apache Solr
14 40 (0.46%) WebSphere
15 37 (0.42%) EPiServer
16 33 (0.38%) Adobe Experience Manager
16 33 (0.38%) Drupal
17 31 (0.35%) Sitefinity
18 29 (0.33%) SharePoint
Applications
1 21 (0.24%) Microsoft Excel
1 21 (0.24%) Photoshop
2 17 (0.19%) Chatbot
3 12 (0.14%) Microsoft Office
3 12 (0.14%) S-PLUS
4 11 (0.13%) Zeplin
5 10 (0.11%) InVision
6 9 (0.10%) Adobe Illustrator
7 8 (0.091%) Adobe Premiere
8 7 (0.080%) Adobe XD
8 7 (0.080%) Sketch
9 6 (0.068%) MS Visio
10 5 (0.057%) Microsoft PowerPoint
11 4 (0.046%) Gliffy
12 3 (0.034%) OmniGraffle
13 2 (0.023%) InDesign
14 1 (0.011%) EngageOne
14 1 (0.011%) Fireworks
14 1 (0.011%) Microsoft Project
14 1 (0.011%) Spreadsheet
Business Applications
1 140 (1.60%) Payment Gateway
2 71 (0.81%) Dynamics CRM
3 34 (0.39%) SAP Hybris
4 22 (0.25%) WebTrends
5 19 (0.22%) Magento
6 10 (0.11%) Dynamics NAV
7 9 (0.10%) SDL Web 8
8 8 (0.091%) nopCommerce
9 7 (0.080%) Distributed Ledger
10 6 (0.068%) FastStats
10 6 (0.068%) Fredhopper
11 5 (0.057%) Oracle BPM
12 4 (0.046%) Oracle Retail
13 3 (0.034%) Oracle Applications
14 2 (0.023%) Adobe Campaign
14 2 (0.023%) R3 Corda
14 2 (0.023%) SAP HCM
15 1 (0.011%) Dynamics GP
15 1 (0.011%) FINCAD Analytics
15 1 (0.011%) NetSuite
Cloud Services
1 1,909 (21.76%) AWS
2 1,643 (18.73%) Azure
3 430 (4.90%) GitHub
4 416 (4.74%) GCP
5 394 (4.49%) Serverless
6 325 (3.71%) SaaS
7 178 (2.03%) PaaS
8 153 (1.74%) AWS Lambda
9 137 (1.56%) OpenShift
10 134 (1.53%) Amazon EC2
11 127 (1.45%) npm
12 100 (1.14%) Amazon S3
13 90 (1.03%) Office 365
14 84 (0.96%) Cloud Computing
15 76 (0.87%) G Suite
16 75 (0.86%) IaaS
17 60 (0.68%) AWS CloudFormation
18 53 (0.60%) Slack
19 48 (0.55%) Amazon SQS
20 43 (0.49%) Heroku
Communications & Networking
1 206 (2.35%) Internet
2 178 (2.03%) HTTP
3 42 (0.48%) TCP/IP
4 33 (0.38%) Broadband
5 29 (0.33%) HTTPS
6 28 (0.32%) SSH
7 27 (0.31%) DNS
8 22 (0.25%) SSL
9 19 (0.22%) Bluetooth
10 16 (0.18%) FTP
10 16 (0.18%) Skype
11 15 (0.17%) MQTT
12 14 (0.16%) SMTP
13 13 (0.15%) Wireless
14 12 (0.14%) Reverse Proxy
15 11 (0.13%) AMQP
15 11 (0.13%) Intranet
16 10 (0.11%) Network Security
17 9 (0.10%) Firewall
18 8 (0.091%) Wi-Fi
Database & Business Intelligence
1 1,685 (19.21%) SQL Server
2 859 (9.79%) NoSQL
3 650 (7.41%) MySQL
4 511 (5.83%) MongoDB
5 414 (4.72%) SQL Server 2016
6 397 (4.53%) PostgreSQL
7 377 (4.30%) Relational Database
8 306 (3.49%) Big Data
9 230 (2.62%) Redis
10 174 (1.98%) Hadoop
11 154 (1.76%) Apache Cassandra
12 103 (1.17%) RDBMS
13 102 (1.16%) Amazon RDS
14 95 (1.08%) Amazon DynamoDB
15 86 (0.98%) Neo4j
16 80 (0.91%) SQL Server Reporting Services
17 73 (0.83%) Azure SQL Database
18 67 (0.76%) Blockchain
19 60 (0.68%) Data Warehouse
20 59 (0.67%) SQL Server Integration Services
Development Applications
1 2,078 (23.69%) Git (software)
2 1,088 (12.40%) Jenkins
3 1,005 (11.46%) JIRA
4 970 (11.06%) Selenium
5 605 (6.90%) Cucumber
6 491 (5.60%) Maven
7 420 (4.79%) JUnit
8 372 (4.24%) TeamCity
9 360 (4.10%) Visual Studio
10 309 (3.52%) Team Foundation Server
11 276 (3.15%) NUnit
12 275 (3.14%) WebDriver
13 250 (2.85%) SpecFlow
14 238 (2.71%) Gradle
15 237 (2.70%) SoapUI
16 201 (2.29%) Jasmine
17 195 (2.22%) JMeter
18 192 (2.19%) Subversion
19 185 (2.11%) Atlassian Bamboo
20 182 (2.08%) webpack
General
1 1,376 (15.69%) Finance
2 643 (7.33%) Retail
3 558 (6.36%) Banking
4 428 (4.88%) Games
5 259 (2.95%) Marketing
6 182 (2.08%) Telecoms
7 171 (1.95%) Public Sector
8 117 (1.33%) Manufacturing
9 106 (1.21%) Advertising
10 103 (1.17%) Front Office
11 92 (1.05%) Electronics
12 86 (0.98%) Investment Banking
13 64 (0.73%) Financial Institution
14 61 (0.70%) Back Office
15 53 (0.60%) Law
16 52 (0.59%) Publishing
17 51 (0.58%) Automotive
17 51 (0.58%) Retail Banking
18 32 (0.36%) Multimedia
19 31 (0.35%) Legal
Job Titles
1 5,713 (65.14%) Developer
2 1,447 (16.50%) .NET Developer
3 1,399 (15.95%) Java Developer
4 1,295 (14.76%) C# Developer
5 1,225 (13.97%) Senior Developer
6 953 (10.87%) Software Engineer
7 846 (9.65%) C# .NET Developer
8 685 (7.81%) Software Developer
9 442 (5.04%) Java Engineer
10 424 (4.83%) Front End Developer (Client-Side Developer)
11 411 (4.69%) Senior Java Developer
12 379 (4.32%) Full Stack Developer
13 371 (4.23%) ASP.NET Developer
14 356 (4.06%) C# ASP.NET Developer
15 340 (3.88%) Senior Software Engineer
16 331 (3.77%) Lead Developer
17 311 (3.55%) JavaScript Developer
18 298 (3.40%) React Developer
19 293 (3.34%) Java Software Engineer
20 278 (3.17%) PHP Developer
Libraries, Frameworks & Software Standards
1 3,043 (34.69%) .NET
2 2,056 (23.44%) HTML
3 2,016 (22.98%) AngularJS
4 1,879 (21.42%) CSS
5 1,673 (19.07%) ASP.NET
6 1,636 (18.65%) React
7 1,403 (16.00%) RESTful
8 1,327 (15.13%) Spring
9 1,281 (14.60%) Node.js
10 1,182 (13.48%) REST
11 1,161 (13.24%) Web Services
12 1,118 (12.75%) ASP.NET MVC
13 969 (11.05%) ASP.NET Web API
14 889 (10.14%) .NET Framework
15 758 (8.64%) HTML5
16 678 (7.73%) .NET Core
17 628 (7.16%) jQuery
18 581 (6.62%) Entity Framework
19 580 (6.61%) Spring Boot
20 576 (6.57%) WCF
Miscellaneous
1 954 (10.88%) Greenfield Project
2 618 (7.05%) User Experience
3 376 (4.29%) Enterprise Software
4 352 (4.01%) Mobile App
5 348 (3.97%) Analytical Skills
6 242 (2.76%) Algorithms
7 217 (2.47%) Self-Motivation
8 183 (2.09%) Data Structures
9 135 (1.54%) Cloud Native
10 84 (0.96%) Public Cloud
11 67 (0.76%) Foreign Exchange (FX)
11 67 (0.76%) Virtual Team
12 65 (0.74%) iPad
13 56 (0.64%) Equities
14 55 (0.63%) Management Information System
15 50 (0.57%) Fixed Income
15 50 (0.57%) Online Gambling
16 49 (0.56%) Derivative
17 47 (0.54%) BBC
18 44 (0.50%) Linux Command Line
Operating Systems
1 772 (8.80%) Linux
2 468 (5.34%) Windows
3 345 (3.93%) Android
4 245 (2.79%) Apple iOS
5 163 (1.86%) Unix
6 43 (0.49%) Windows Server
7 39 (0.44%) Mac OS
8 22 (0.25%) Ubuntu
9 21 (0.24%) CentOS
10 13 (0.15%) Mac OS X
11 9 (0.10%) Red Hat Enterprise Linux
12 8 (0.091%) Windows 10
13 6 (0.068%) Debian
14 5 (0.057%) Windows 7
14 5 (0.057%) Windows Server 2012
15 3 (0.034%) VMS
16 2 (0.023%) tvOS
16 2 (0.023%) Windows Mobile
17 1 (0.011%) FreeRTOS
17 1 (0.011%) Windows Server 2008
Processes & Methodologies
1 6,448 (73.51%) Agile Software Development
2 3,627 (41.35%) BDD
3 2,518 (28.71%) Scrum
4 2,131 (24.30%) Continuous Integration
5 1,957 (22.31%) MVC
6 1,926 (21.96%) Software Engineering
7 1,890 (21.55%) DevOps
8 1,833 (20.90%) Test Automation
9 1,778 (20.27%) Microservices
10 1,184 (13.50%) OO
11 1,089 (12.42%) Kanban
12 973 (11.09%) Mentoring
13 948 (10.81%) Problem-Solving
14 941 (10.73%) Unit Testing
15 843 (9.61%) E-Commerce
16 837 (9.54%) Continuous Delivery
17 808 (9.21%) SOLID
18 804 (9.17%) Pair Programming
19 640 (7.30%) Computer Science
20 634 (7.23%) OOP
Programming Languages
1 3,626 (41.34%) JavaScript
2 3,404 (38.81%) C#
3 3,242 (36.96%) Java
4 2,107 (24.02%) SQL
5 1,151 (13.12%) Python
6 799 (9.11%) Java 8
7 615 (7.01%) Ruby
8 595 (6.78%) PHP
9 449 (5.12%) TypeScript
10 392 (4.47%) Scala
11 329 (3.75%) ES6
12 327 (3.73%) C++
13 270 (3.08%) T-SQL
14 242 (2.76%) Go
15 238 (2.71%) Kotlin
16 235 (2.68%) C
17 146 (1.66%) PowerShell
18 141 (1.61%) Bash Shell
19 111 (1.27%) VB.NET
20 102 (1.16%) Apple Swift
Qualifications
1 843 (9.61%) Degree
2 328 (3.74%) Computer Science Degree
3 268 (3.06%) Security Cleared
4 154 (1.76%) SC Cleared
5 140 (1.60%) ISTQB
6 103 (1.17%) DV Cleared
7 95 (1.08%) ISTQB Foundation Certification
8 89 (1.01%) ISEB
9 33 (0.38%) Microsoft Certification
10 23 (0.26%) Numerate Degree
11 16 (0.18%) ISTQB Advanced Certification
12 11 (0.13%) PMI Certification
13 10 (0.11%) HNC
13 10 (0.11%) HND
13 10 (0.11%) Postgraduate
14 9 (0.10%) Master's Degree
14 9 (0.10%) TOGAF Certification
15 8 (0.091%) DBS Check
16 7 (0.080%) AWS Certification
16 7 (0.080%) MCITP
Quality Assurance & Compliance
1 808 (9.21%) QA
2 27 (0.31%) GDPR
3 21 (0.24%) PSD2
4 17 (0.19%) Data Quality
5 13 (0.15%) WAI
6 8 (0.091%) 21 CFR Part 11
6 8 (0.091%) SLA
7 7 (0.080%) HIPAA
7 7 (0.080%) TickIT
8 3 (0.034%) WCAG
9 2 (0.023%) DICOM
9 2 (0.023%) EMIR
9 2 (0.023%) MiFID
10 1 (0.011%) HL7
10 1 (0.011%) ISO/IEC 27001
10 1 (0.011%) PCI DSS
10 1 (0.011%) PMO
System Software
1 1,516 (17.28%) Docker
2 84 (0.96%) Active Directory
3 41 (0.47%) VMware Infrastructure
4 37 (0.42%) vSphere
5 29 (0.33%) Apache ZooKeeper
6 15 (0.17%) HDFS
7 12 (0.14%) Varnish
8 11 (0.13%) Firmware
9 10 (0.11%) Hyper-V
10 8 (0.091%) Virtual Machines
11 6 (0.068%) VirtualBox
12 5 (0.057%) etcd
12 5 (0.057%) Microsoft App-V
12 5 (0.057%) Tivoli Workload Scheduler
13 3 (0.034%) Apache Flume
13 3 (0.034%) Postfix
13 3 (0.034%) vCloud
13 3 (0.034%) Virtual Desktop
14 1 (0.011%) LXC
14 1 (0.011%) Virtual Servers
Systems Management
1 855 (9.75%) Kubernetes
2 361 (4.12%) Ansible
3 266 (3.03%) Terraform
4 186 (2.12%) Puppet
5 178 (2.03%) Opscode Chef
6 88 (1.00%) HP Quality Center
7 58 (0.66%) Kibana
8 43 (0.49%) Istio
9 36 (0.41%) Rancher
10 34 (0.39%) Docker Swarm
11 33 (0.38%) Mesos
12 29 (0.33%) logstash
13 28 (0.32%) Marathon
13 28 (0.32%) Prometheus
14 26 (0.30%) Grafana
15 18 (0.21%) Hadoop YARN
15 18 (0.21%) Single Sign-On
16 13 (0.15%) HP ALM
17 12 (0.14%) Oozie
18 10 (0.11%) Matomo
Vendors
1 1,099 (12.53%) Microsoft
2 498 (5.68%) Oracle
3 494 (5.63%) Google
4 237 (2.70%) WorldPay
5 157 (1.79%) SAP
6 132 (1.50%) Atlassian
7 103 (1.17%) Salesforce.com
8 84 (0.96%) Adobe
9 77 (0.88%) HP
10 75 (0.86%) Splunk
11 73 (0.83%) Sitecore
12 70 (0.80%) Zend
13 69 (0.79%) hybris
14 59 (0.67%) Spotify
15 51 (0.58%) Sage
16 47 (0.54%) Xamarin
17 46 (0.52%) Cypress Semiconductor
18 44 (0.50%) IBM
19 43 (0.49%) Apple
19 43 (0.49%) VMware