Period
to 14 December 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 14 December 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > England
6 months to
14 Dec 2019
Same period 2018 Same period 2017
Rank 27 24 20
Rank change year-on-year -3 -4 +2
Permanent jobs citing TDD 8,534 12,097 15,030
As % of all permanent IT jobs advertised in England 7.00% 8.17% 8.93%
As % of the Processes & Methodologies category 7.60% 8.87% 9.68%
Number of salaries quoted 7,051 10,269 12,994
England median annual salary £60,000 £55,000 £52,500
Median salary % change year-on-year +9.09% +4.76% -
10th Percentile £35,000 £34,955 £32,500
90th Percentile £87,500 £87,500 £80,000
UK median annual salary £57,500 £55,000 £52,500
% change year-on-year +4.55% +4.76% +5.00%

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 112,265 136,335 155,278
As % of all permanent IT jobs advertised in England 92.07% 92.09% 92.29%
Number of salaries quoted 89,718 108,983 124,312
England median annual salary £52,945 £52,500 £50,000
Median salary % change year-on-year +0.85% +5.00% -
10th Percentile £30,000 £30,000 £28,500
90th Percentile £87,500 £85,000 £80,000
UK median annual salary £52,500 £52,500 £50,000
% change year-on-year - +5.00% +3.09%

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 14 December 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 14 December 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 4,552 £67,500 - 814
South East -9 1,399 £51,500 +3.00% 221
North of England -5 1,274 £50,000 +5.26% 298
North West -2 791 £52,500 +5.00% 176
South West -26 491 £47,500 - 115
Midlands -26 427 £50,000 +11.11% 137
East of England -3 410 £55,000 +4.76% 96
Yorkshire -10 406 £50,000 +11.11% 98
West Midlands -27 246 £50,000 +11.11% 88
East Midlands -18 180 £42,500 - 49
North East -12 77 £45,000 - 24
TDD
UK

For the 6 months to 14 December 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 6,129 (71.82%) Agile Software Development
2 3,541 (41.49%) JavaScript
3 3,492 (40.92%) BDD
4 3,350 (39.25%) C#
5 3,084 (36.14%) .NET
6 2,950 (34.57%) Java
7 2,503 (29.33%) Scrum
8 2,027 (23.75%) AngularJS
9 2,018 (23.65%) Continuous Integration
10 1,975 (23.14%) Git (software)
11 1,919 (22.49%) HTML
12 1,878 (22.01%) SQL
13 1,876 (21.98%) MVC
14 1,857 (21.76%) Microservices
15 1,844 (21.61%) AWS
16 1,838 (21.54%) DevOps
17 1,792 (21.00%) CSS
18 1,750 (20.51%) Azure
19 1,691 (19.81%) Software Engineering
20 1,677 (19.65%) SQL Server
21 1,611 (18.88%) Test Automation
22 1,604 (18.80%) ASP.NET
23 1,600 (18.75%) React
24 1,484 (17.39%) Docker
25 1,437 (16.84%) RESTful
26 1,334 (15.63%) Finance
27 1,321 (15.48%) Node.js
28 1,253 (14.68%) Spring
29 1,177 (13.79%) ASP.NET MVC
30 1,122 (13.15%) OO

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
1 357 (4.18%) Confluence
2 269 (3.15%) Elasticsearch
3 145 (1.70%) Apache Spark
4 141 (1.65%) CMS
5 115 (1.35%) Tomcat
6 114 (1.34%) Apache
7 86 (1.01%) IIS
8 77 (0.90%) Sitecore CMS
9 74 (0.87%) JBoss
10 66 (0.77%) Cloud Foundry
11 63 (0.74%) WordPress
12 61 (0.71%) Umbraco
13 50 (0.59%) nginx
14 45 (0.53%) Adobe Experience Manager
15 41 (0.48%) WebSphere
16 37 (0.43%) EPiServer
17 30 (0.35%) Drupal
17 30 (0.35%) Sitefinity
18 29 (0.34%) Apache Solr
18 29 (0.34%) Kentico
Applications
1 26 (0.30%) Photoshop
2 20 (0.23%) Microsoft Excel
3 19 (0.22%) Chatbot
4 17 (0.20%) Adobe Illustrator
5 16 (0.19%) Adobe XD
5 16 (0.19%) InVision
5 16 (0.19%) Zeplin
6 11 (0.13%) Microsoft Office
7 8 (0.094%) Sketch
7 8 (0.094%) S-PLUS
8 7 (0.082%) MS Visio
9 6 (0.070%) Adobe Premiere
10 5 (0.059%) Gliffy
10 5 (0.059%) Microsoft PowerPoint
11 4 (0.047%) Spreadsheet
12 3 (0.035%) Adobe Creative Suite
12 3 (0.035%) OmniGraffle
13 2 (0.023%) InDesign
14 1 (0.012%) GIMP
14 1 (0.012%) Microsoft Project
Business Applications
1 80 (0.94%) Dynamics CRM
2 77 (0.90%) Payment Gateway
3 28 (0.33%) SAP Hybris
3 28 (0.33%) WebTrends
4 10 (0.12%) SDL Web 8
5 9 (0.11%) Distributed Ledger
6 8 (0.094%) Adobe Campaign
6 8 (0.094%) Magento
7 5 (0.059%) R3 Corda
8 4 (0.047%) Dynamics AX
8 4 (0.047%) Dynamics NAV
8 4 (0.047%) FastStats
8 4 (0.047%) Oracle Retail
9 2 (0.023%) Oracle EBS
9 2 (0.023%) PolarLake
9 2 (0.023%) SAP HCM
10 1 (0.012%) Endur
10 1 (0.012%) FINCAD Analytics
10 1 (0.012%) Oracle BPM
10 1 (0.012%) Siebel CRM
Cloud Services
1 1,844 (21.61%) AWS
2 1,750 (20.51%) Azure
3 400 (4.69%) GitHub
4 382 (4.48%) Serverless
5 340 (3.98%) GCP
6 302 (3.54%) SaaS
7 151 (1.77%) PaaS
8 140 (1.64%) AWS Lambda
9 129 (1.51%) OpenShift
10 119 (1.39%) Amazon EC2
11 108 (1.27%) Amazon S3
12 102 (1.20%) npm
13 65 (0.76%) Slack
14 56 (0.66%) Office 365
15 52 (0.61%) AWS CloudFormation
16 50 (0.59%) BrowserStack
17 47 (0.55%) Dynamics 365
18 43 (0.50%) Azure Functions
19 40 (0.47%) G Suite
20 39 (0.46%) Sauce Labs
Communications & Networking
1 214 (2.51%) Internet
2 118 (1.38%) HTTP
3 34 (0.40%) TCP/IP
4 30 (0.35%) DNS
5 27 (0.32%) Broadband
6 26 (0.30%) HTTPS
7 22 (0.26%) SSL
8 17 (0.20%) AMQP
9 15 (0.18%) Skype
10 12 (0.14%) FTP
10 12 (0.14%) SSH
11 11 (0.13%) SNMP
12 10 (0.12%) Bluetooth
12 10 (0.12%) MPLS
13 9 (0.11%) Wi-Fi
14 8 (0.094%) Ethernet
14 8 (0.094%) GoToMeeting
14 8 (0.094%) Hyperconnected
14 8 (0.094%) Intranet
15 7 (0.082%) ATM
Database & Business Intelligence
1 1,677 (19.65%) SQL Server
2 844 (9.89%) NoSQL
3 574 (6.73%) MySQL
4 490 (5.74%) SQL Server 2016
5 478 (5.60%) MongoDB
6 370 (4.34%) PostgreSQL
7 314 (3.68%) Relational Database
8 250 (2.93%) Big Data
9 212 (2.48%) Redis
10 163 (1.91%) Hadoop
11 129 (1.51%) Apache Cassandra
12 101 (1.18%) Amazon RDS
13 99 (1.16%) RDBMS
14 92 (1.08%) Azure SQL Database
15 75 (0.88%) Cosmos DB
16 66 (0.77%) Data Warehouse
17 65 (0.76%) SQL Server Reporting Services
18 61 (0.71%) Amazon DynamoDB
19 50 (0.59%) Blockchain
20 42 (0.49%) Apache Hive
Development Applications
1 1,975 (23.14%) Git (software)
2 950 (11.13%) Jenkins
3 824 (9.66%) JIRA
4 768 (9.00%) Selenium
5 511 (5.99%) Cucumber
6 412 (4.83%) Maven
7 384 (4.50%) JUnit
8 371 (4.35%) Visual Studio
9 324 (3.80%) TeamCity
10 293 (3.43%) NUnit
11 249 (2.92%) Team Foundation Server
12 212 (2.48%) SpecFlow
13 204 (2.39%) Gradle
14 198 (2.32%) Bitbucket
15 195 (2.28%) Jasmine
16 184 (2.16%) WebDriver
17 159 (1.86%) Octopus Deploy
17 159 (1.86%) webpack
18 158 (1.85%) Subversion
19 152 (1.78%) JMeter
General
1 1,334 (15.63%) Finance
2 561 (6.57%) Retail
3 532 (6.23%) Banking
4 430 (5.04%) Games
5 283 (3.32%) Marketing
6 214 (2.51%) Public Sector
7 157 (1.84%) Telecoms
8 132 (1.55%) Front Office
9 105 (1.23%) Manufacturing
10 93 (1.09%) Advertising
11 90 (1.05%) Electronics
12 89 (1.04%) Investment Banking
13 71 (0.83%) Back Office
14 64 (0.75%) Legal
15 57 (0.67%) Financial Institution
16 55 (0.64%) Automotive
17 42 (0.49%) Law
18 36 (0.42%) Aerospace
18 36 (0.42%) Publishing
19 25 (0.29%) Multimedia
Job Titles
1 5,641 (66.10%) Developer
2 1,524 (17.86%) .NET Developer
3 1,322 (15.49%) Java Developer
4 1,318 (15.44%) Senior Developer
5 1,239 (14.52%) C# Developer
6 908 (10.64%) Software Engineer
7 829 (9.71%) C# .NET Developer
8 651 (7.63%) Software Developer
9 436 (5.11%) Senior Java Developer
10 425 (4.98%) Front End Developer (Client-Side Developer)
11 397 (4.65%) Full Stack Developer
12 385 (4.51%) Java Engineer
13 375 (4.39%) React Developer
14 347 (4.07%) ASP.NET Developer
15 325 (3.81%) C# ASP.NET Developer
16 314 (3.68%) Senior Software Engineer
17 299 (3.50%) JavaScript Developer
18 271 (3.18%) Java Software Engineer
19 270 (3.16%) Lead Developer
20 261 (3.06%) PHP Developer
Libraries, Frameworks & Software Standards
1 3,084 (36.14%) .NET
2 2,027 (23.75%) AngularJS
3 1,919 (22.49%) HTML
4 1,792 (21.00%) CSS
5 1,604 (18.80%) ASP.NET
6 1,600 (18.75%) React
7 1,437 (16.84%) RESTful
8 1,321 (15.48%) Node.js
9 1,253 (14.68%) Spring
10 1,177 (13.79%) ASP.NET MVC
11 1,111 (13.02%) Web Services
12 1,066 (12.49%) REST
13 1,062 (12.44%) ASP.NET Web API
14 926 (10.85%) .NET Framework
15 838 (9.82%) .NET Core
16 673 (7.89%) HTML5
17 629 (7.37%) Entity Framework
18 583 (6.83%) WCF
19 557 (6.53%) jQuery
20 552 (6.47%) Spring Boot
Miscellaneous
1 952 (11.16%) Greenfield Project
2 510 (5.98%) User Experience
3 402 (4.71%) Mobile App
4 308 (3.61%) Analytical Skills
5 293 (3.43%) Enterprise Software
6 235 (2.75%) Algorithms
7 198 (2.32%) Data Structures
8 188 (2.20%) Self-Motivation
9 148 (1.73%) Cloud Native
10 94 (1.10%) Public Cloud
11 79 (0.93%) Foreign Exchange (FX)
12 64 (0.75%) Virtual Team
13 62 (0.73%) iPad
14 53 (0.62%) Blog
15 48 (0.56%) BBC
16 46 (0.54%) Equities
17 45 (0.53%) Derivative
17 45 (0.53%) Fixed Income
18 44 (0.52%) Online Gambling
19 41 (0.48%) N-Tier
Operating Systems
1 713 (8.35%) Linux
2 470 (5.51%) Windows
3 408 (4.78%) Android
4 330 (3.87%) Apple iOS
5 253 (2.96%) Unix
6 66 (0.77%) Mac OS X
7 46 (0.54%) Mac OS
8 35 (0.41%) CentOS
9 33 (0.39%) Windows Server
10 27 (0.32%) Ubuntu
11 19 (0.22%) Red Hat Enterprise Linux
12 9 (0.11%) Debian
13 4 (0.047%) watchOS
14 3 (0.035%) tvOS
14 3 (0.035%) VMS
14 3 (0.035%) Windows 10
14 3 (0.035%) Windows Server 2012
15 2 (0.023%) Windows 7
16 1 (0.012%) Solaris
Processes & Methodologies
1 6,129 (71.82%) Agile Software Development
2 3,492 (40.92%) BDD
3 2,503 (29.33%) Scrum
4 2,018 (23.65%) Continuous Integration
5 1,876 (21.98%) MVC
6 1,857 (21.76%) Microservices
7 1,838 (21.54%) DevOps
8 1,691 (19.81%) Software Engineering
9 1,611 (18.88%) Test Automation
10 1,122 (13.15%) OO
11 1,082 (12.68%) Kanban
12 913 (10.70%) Mentoring
13 869 (10.18%) Unit Testing
14 858 (10.05%) Problem-Solving
15 774 (9.07%) E-Commerce
16 771 (9.03%) Continuous Delivery
17 758 (8.88%) Pair Programming
18 738 (8.65%) SOLID
19 667 (7.82%) Front End Development
20 561 (6.57%) SDLC
Programming Languages
1 3,541 (41.49%) JavaScript
2 3,350 (39.25%) C#
3 2,950 (34.57%) Java
4 1,878 (22.01%) SQL
5 1,002 (11.74%) Python
6 774 (9.07%) Java 8
7 561 (6.57%) Ruby
8 552 (6.47%) PHP
9 493 (5.78%) TypeScript
10 316 (3.70%) Kotlin
10 316 (3.70%) Scala
11 304 (3.56%) C++
12 293 (3.43%) ES6
13 227 (2.66%) T-SQL
14 216 (2.53%) C
15 184 (2.16%) Go
16 163 (1.91%) Apple Swift
17 155 (1.82%) PowerShell
18 138 (1.62%) Bash Shell
19 97 (1.14%) VB.NET
Qualifications
1 777 (9.10%) Degree
2 268 (3.14%) Computer Science Degree
3 225 (2.64%) Security Cleared
4 131 (1.54%) SC Cleared
5 102 (1.20%) ISTQB
6 85 (1.00%) DV Cleared
7 83 (0.97%) ISEB
8 51 (0.60%) ISTQB Foundation Certification
9 32 (0.37%) Microsoft Certification
10 30 (0.35%) Postgraduate
11 26 (0.30%) Numerate Degree
12 17 (0.20%) MCP
13 11 (0.13%) Master's Degree
13 11 (0.13%) PMI Certification
14 10 (0.12%) ISTQB Advanced Certification
15 9 (0.11%) TOGAF Certification
16 8 (0.094%) PhD
17 7 (0.082%) HND
17 7 (0.082%) MCSD
18 6 (0.070%) HNC
Quality Assurance & Compliance
1 749 (8.78%) QA
2 29 (0.34%) GDPR
3 22 (0.26%) Data Quality
4 9 (0.11%) PSD2
5 7 (0.082%) ISO/IEC 27001
6 5 (0.059%) TickIT
7 3 (0.035%) PMO
8 2 (0.023%) EMIR
8 2 (0.023%) MiFID
8 2 (0.023%) PCI DSS
9 1 (0.012%) HL7
9 1 (0.012%) IEC 62304
9 1 (0.012%) ISO 13485
9 1 (0.012%) NCSC
9 1 (0.012%) PMBOK
9 1 (0.012%) SLA
9 1 (0.012%) WAI
System Software
1 1,484 (17.39%) Docker
2 81 (0.95%) Active Directory
3 21 (0.25%) VMware Infrastructure
4 20 (0.23%) vSphere
5 14 (0.16%) Virtual Machines
6 12 (0.14%) HDFS
7 7 (0.082%) Apache ZooKeeper
7 7 (0.082%) Postfix
8 6 (0.070%) Firmware
8 6 (0.070%) Varnish
9 5 (0.059%) Hyper-V
10 4 (0.047%) Microsoft App-V
11 3 (0.035%) vCloud
11 3 (0.035%) VirtualBox
12 2 (0.023%) Apache Flume
12 2 (0.023%) Oracle RAC
13 1 (0.012%) Cronacle
13 1 (0.012%) iptables
13 1 (0.012%) LXC
13 1 (0.012%) Shibboleth
Systems Management
1 907 (10.63%) Kubernetes
2 336 (3.94%) Ansible
3 285 (3.34%) Terraform
4 191 (2.24%) Puppet
5 144 (1.69%) Opscode Chef
6 75 (0.88%) HP Quality Center
7 64 (0.75%) Kibana
8 45 (0.53%) Mesos
9 42 (0.49%) Marathon
10 36 (0.42%) Istio
11 35 (0.41%) Rancher
12 28 (0.33%) Docker Swarm
13 26 (0.30%) logstash
14 20 (0.23%) Prometheus
15 16 (0.19%) Grafana
15 16 (0.19%) Single Sign-On
16 15 (0.18%) Hadoop YARN
17 13 (0.15%) Oozie
18 11 (0.13%) Salt
19 10 (0.12%) Matomo
Vendors
1 1,060 (12.42%) Microsoft
2 416 (4.87%) Oracle
3 396 (4.64%) Google
4 193 (2.26%) WorldPay
5 157 (1.84%) SAP
6 143 (1.68%) Atlassian
7 118 (1.38%) Adobe
8 103 (1.21%) Salesforce.com
9 92 (1.08%) Sitecore
10 68 (0.80%) HP
10 68 (0.80%) Zend
11 64 (0.75%) hybris
12 61 (0.71%) Apple
13 59 (0.69%) IBM
14 53 (0.62%) FIS
15 48 (0.56%) Facebook
15 48 (0.56%) Sage
16 43 (0.50%) Xamarin
17 41 (0.48%) Red Hat
18 40 (0.47%) Splunk