Period
to 13 July 2020

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 13 July 2020 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > England
6 months to
13 Jul 2020
Same period 2019 Same period 2018
Rank 27 30 23
Rank change year-on-year +3 -7 -4
Permanent jobs citing TDD 5,256 9,334 14,882
As % of all permanent jobs advertised in England 7.49% 6.86% 8.93%
As % of the Processes & Methodologies category 8.12% 7.44% 9.69%
Number of salaries quoted 5,070 8,143 13,653
Median annual salary £60,000 £55,000 £52,500
Median salary % change year-on-year +9.09% +4.76% -
10th Percentile £37,500 £35,000 £33,750
90th Percentile £92,500 £87,500 £82,500
UK median annual salary £60,000 £55,000 £52,500
% change year-on-year +9.09% +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 64,763 125,508 153,593
As % of all permanent IT jobs advertised in England 92.27% 92.20% 92.12%
Number of salaries quoted 52,211 99,658 123,855
Median annual salary £55,000 £52,500 £50,000
Median salary % change year-on-year +4.76% +5.00% -
10th Percentile £32,250 £30,000 £29,250
90th Percentile £90,000 £86,250 £82,500
UK median annual salary £55,000 £52,500 £50,000
% change year-on-year +4.76% +5.00% +3.09%

TDD
Job Vacancy Trend in England

Job postings citing TDD as a proportion of all IT jobs advertised in England.

Job vacancy trend for TDD in England

TDD
Salary Trend in England

3-month moving average salary quoted in jobs citing TDD in England.

Salary trend for TDD in England

TDD
Salary Histogram in England

Salary distribution for jobs citing TDD in England over the 6 months to 13 July 2020.

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 13 July 2020. 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 +7 2,986 £70,000 +7.69% 299
South East -1 803 £55,000 +4.76% 102
North of England +2 720 £50,000 +3.17% 138
North West -1 379 £51,750 -1.43% 87
South West +15 378 £50,000 +11.11% 45
Yorkshire +11 267 £50,000 +11.11% 33
Midlands -3 245 £50,000 +11.11% 66
West Midlands +16 178 £50,000 +11.11% 43
East of England -26 137 £52,500 +5.00% 36
North East +20 74 £45,000 +2.27% 18
East Midlands -22 67 £50,000 +11.11% 23
TDD
UK

For the 6 months to 13 July 2020, 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 3,859 (73.42%) Agile Software Development
2 2,343 (44.58%) JavaScript
3 2,243 (42.68%) BDD
4 2,074 (39.46%) C#
5 1,984 (37.75%) .NET
6 1,701 (32.36%) Java
7 1,594 (30.33%) Microservices
8 1,540 (29.30%) Scrum
9 1,526 (29.03%) AngularJS
10 1,502 (28.58%) AWS
11 1,424 (27.09%) React
12 1,423 (27.07%) Azure
13 1,262 (24.01%) Software Engineering
14 1,189 (22.62%) Node.js
15 1,186 (22.56%) DevOps
16 1,138 (21.65%) SQL
17 1,118 (21.27%) Docker
18 1,099 (20.91%) HTML
19 1,097 (20.87%) Git (software)
20 1,083 (20.61%) CSS
21 1,079 (20.53%) SQL Server
22 1,073 (20.41%) MVC
23 1,035 (19.69%) .NET Core
24 1,007 (19.16%) Continuous Integration
25 970 (18.46%) Test Automation
26 958 (18.23%) Finance
27 928 (17.66%) ASP.NET
28 799 (15.20%) TypeScript
29 767 (14.59%) Kanban
30 736 (14.00%) .NET Framework

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
1 413 (7.86%) Elasticsearch
2 187 (3.56%) Confluence
3 115 (2.19%) CMS
4 92 (1.75%) Apache
5 90 (1.71%) Tomcat
6 73 (1.39%) Apache Spark
7 55 (1.05%) Umbraco
8 52 (0.99%) IIS
9 44 (0.84%) Sitecore CMS
10 41 (0.78%) nginx
11 36 (0.68%) EPiServer
12 28 (0.53%) WebSphere
13 23 (0.44%) SharePoint
14 22 (0.42%) Sitefinity
15 21 (0.40%) DNN
16 20 (0.38%) Immediacy CMS
16 20 (0.38%) Kentico
17 16 (0.30%) JBoss
18 14 (0.27%) Cloud Foundry
18 14 (0.27%) NServiceBus
Applications
1 20 (0.38%) Microsoft Excel
2 14 (0.27%) Chatbot
3 9 (0.17%) Adobe XD
3 9 (0.17%) InVision
3 9 (0.17%) Zeplin
4 5 (0.095%) Adobe Creative Suite
5 4 (0.076%) Microsoft Office
6 3 (0.057%) MS Visio
6 3 (0.057%) Photoshop
7 1 (0.019%) Mingle
7 1 (0.019%) Spreadsheet
Business Applications
1 35 (0.67%) Dynamics CRM
2 14 (0.27%) Magento
3 8 (0.15%) SDL Web 8
4 7 (0.13%) Payment Gateway
5 6 (0.11%) Distributed Ledger
5 6 (0.11%) Dynamics NAV
6 4 (0.076%) R3 Corda
7 3 (0.057%) Tesseract
8 2 (0.038%) Dynamics AX
8 2 (0.038%) Remedy ITSM
8 2 (0.038%) Unit4 Business World
9 1 (0.019%) Shopify
9 1 (0.019%) WebTrends
Cloud Services
1 1,502 (28.58%) AWS
2 1,423 (27.07%) Azure
3 324 (6.16%) Serverless
4 262 (4.98%) SaaS
5 217 (4.13%) GCP
6 187 (3.56%) AWS Lambda
7 167 (3.18%) GitHub
8 108 (2.05%) PaaS
9 107 (2.04%) Amazon EC2
10 68 (1.29%) Amazon S3
10 68 (1.29%) npm
11 65 (1.24%) Amazon SQS
11 65 (1.24%) Cloud Computing
12 60 (1.14%) AWS CloudFormation
13 47 (0.89%) Amazon ECS
14 41 (0.78%) Power Platform
15 39 (0.74%) OpenShift
16 29 (0.55%) Azure Functions
17 28 (0.53%) Amazon Cognito
18 24 (0.46%) Slack
Communications & Networking
1 104 (1.98%) Internet
2 92 (1.75%) HTTP
3 57 (1.08%) Skype
4 22 (0.42%) DNS
5 20 (0.38%) TCP/IP
6 14 (0.27%) Broadband
7 10 (0.19%) Wireless
8 8 (0.15%) SSL
9 7 (0.13%) AMQP
9 7 (0.13%) MQTT
10 6 (0.11%) FIX Connectivity
10 6 (0.11%) FTP
10 6 (0.11%) Network Security
11 5 (0.095%) Bluetooth
11 5 (0.095%) SMTP
12 4 (0.076%) Firewall
12 4 (0.076%) Reverse Proxy
12 4 (0.076%) VoIP
13 3 (0.057%) NFC
13 3 (0.057%) VLAN
Database & Business Intelligence
1 1,079 (20.53%) SQL Server
2 586 (11.15%) MongoDB
3 514 (9.78%) NoSQL
4 377 (7.17%) MySQL
5 302 (5.75%) SQL Server 2019
6 274 (5.21%) PostgreSQL
7 212 (4.03%) Relational Database
8 131 (2.49%) Redis
9 101 (1.92%) Hadoop
10 96 (1.83%) Amazon DynamoDB
11 88 (1.67%) Big Data
12 82 (1.56%) Apache Cassandra
13 70 (1.33%) Data Warehouse
14 60 (1.14%) Azure SQL Database
15 55 (1.05%) Amazon RDS
16 51 (0.97%) Cosmos DB
17 40 (0.76%) SQL Server Reporting Services
18 39 (0.74%) SQL Server Integration Services
19 36 (0.68%) Power BI
20 33 (0.63%) SQL Server 2016
Development Applications
1 1,097 (20.87%) Git (software)
2 574 (10.92%) Jenkins
3 453 (8.62%) Selenium
4 393 (7.48%) JIRA
5 232 (4.41%) Maven
6 220 (4.19%) Cucumber
7 212 (4.03%) Visual Studio
8 182 (3.46%) TeamCity
9 166 (3.16%) SpecFlow
10 164 (3.12%) JUnit
11 155 (2.95%) NUnit
12 145 (2.76%) webpack
13 124 (2.36%) Bitbucket
14 120 (2.28%) Jasmine
15 111 (2.11%) Team Foundation Server
16 102 (1.94%) SoapUI
17 100 (1.90%) WebDriver
18 95 (1.81%) Mocha
19 92 (1.75%) Mockito
19 92 (1.75%) Octopus Deploy
General
1 958 (18.23%) Finance
2 304 (5.78%) Banking
3 256 (4.87%) Games
4 217 (4.13%) Retail
5 144 (2.74%) Marketing
6 122 (2.32%) Front Office
7 97 (1.85%) Public Sector
8 71 (1.35%) Investment Banking
9 69 (1.31%) Law
9 69 (1.31%) Telecoms
10 54 (1.03%) Advertising
11 49 (0.93%) Financial Institution
12 43 (0.82%) Legal
13 41 (0.78%) Back Office
14 35 (0.67%) Electronics
15 33 (0.63%) Publishing
16 32 (0.61%) Manufacturing
17 17 (0.32%) Automotive
18 15 (0.29%) Military
19 12 (0.23%) Pharmaceutical
Job Titles
1 3,550 (67.54%) Developer
2 1,013 (19.27%) .NET Developer
3 792 (15.07%) Senior Developer
4 772 (14.69%) Java Developer
5 740 (14.08%) C# Developer
6 592 (11.26%) Software Engineer
7 484 (9.21%) C# .NET Developer
8 411 (7.82%) Software Developer
9 362 (6.89%) Full Stack Developer
10 260 (4.95%) React Developer
11 240 (4.57%) Senior Java Developer
12 231 (4.39%) JavaScript Developer
13 222 (4.22%) Java Engineer
14 214 (4.07%) Front End Developer (Client-Side Developer)
15 213 (4.05%) Lead Developer
16 183 (3.48%) Senior Software Engineer
17 174 (3.31%) Senior .NET Developer
18 154 (2.93%) PHP Developer
19 153 (2.91%) Junior
20 141 (2.68%) AWS Developer
Libraries, Frameworks & Software Standards
1 1,984 (37.75%) .NET
2 1,526 (29.03%) AngularJS
3 1,424 (27.09%) React
4 1,189 (22.62%) Node.js
5 1,099 (20.91%) HTML
6 1,083 (20.61%) CSS
7 1,035 (19.69%) .NET Core
8 928 (17.66%) ASP.NET
9 736 (14.00%) .NET Framework
10 709 (13.49%) RESTful
11 697 (13.26%) Spring
12 689 (13.11%) ASP.NET Web API
13 654 (12.44%) REST
14 650 (12.37%) ASP.NET MVC
15 613 (11.66%) Web Services
16 543 (10.33%) Vue.js
17 517 (9.84%) Entity Framework
18 469 (8.92%) HTML5
19 327 (6.22%) jQuery
20 302 (5.75%) Redux
Miscellaneous
1 624 (11.87%) Greenfield Project
2 317 (6.03%) User Experience
3 190 (3.61%) Mobile App
4 180 (3.42%) Enterprise Software
5 175 (3.33%) Analytical Skills
6 138 (2.63%) Self-Motivation
7 135 (2.57%) Data Structures
8 130 (2.47%) Algorithms
9 102 (1.94%) Cloud Native
10 83 (1.58%) Hedge funds
11 68 (1.29%) Virtual Team
12 53 (1.01%) Tandem
13 50 (0.95%) Foreign Exchange (FX)
14 45 (0.86%) Fixed Income
14 45 (0.86%) N-Tier
15 43 (0.82%) Equities
16 38 (0.72%) Derivative
17 34 (0.65%) Client/Server
18 29 (0.55%) Linux Command Line
19 27 (0.51%) Social Network
Operating Systems
1 397 (7.55%) Linux
2 265 (5.04%) Windows
3 151 (2.87%) Android
4 148 (2.82%) Unix
5 145 (2.76%) Apple iOS
6 47 (0.89%) Mac OS X
7 18 (0.34%) Windows Server
8 13 (0.25%) Red Hat Enterprise Linux
9 11 (0.21%) Mac OS
10 10 (0.19%) Windows Server 2019
11 7 (0.13%) VMS
12 6 (0.11%) CentOS
12 6 (0.11%) Ubuntu
13 4 (0.076%) Debian
13 4 (0.076%) Windows 10
14 3 (0.057%) tvOS
14 3 (0.057%) Windows XP
15 2 (0.038%) AIX
15 2 (0.038%) Solaris
15 2 (0.038%) ThreadX
Processes & Methodologies
1 3,859 (73.42%) Agile Software Development
2 2,243 (42.68%) BDD
3 1,594 (30.33%) Microservices
4 1,540 (29.30%) Scrum
5 1,262 (24.01%) Software Engineering
6 1,186 (22.56%) DevOps
7 1,073 (20.41%) MVC
8 1,007 (19.16%) Continuous Integration
9 970 (18.46%) Test Automation
10 767 (14.59%) Kanban
11 667 (12.69%) OO
12 522 (9.93%) Fintech
13 489 (9.30%) SOLID
14 486 (9.25%) Unit Testing
15 472 (8.98%) Pair Programming
16 418 (7.95%) Mentoring
17 392 (7.46%) Problem-Solving
18 387 (7.36%) SDLC
19 373 (7.10%) Front End Development
20 347 (6.60%) Continuous Delivery
Programming Languages
1 2,343 (44.58%) JavaScript
2 2,074 (39.46%) C#
3 1,701 (32.36%) Java
4 1,138 (21.65%) SQL
5 799 (15.20%) TypeScript
6 696 (13.24%) Python
7 471 (8.96%) Java 8
8 374 (7.12%) PHP
9 287 (5.46%) Scala
10 221 (4.20%) Kotlin
11 215 (4.09%) Ruby
12 176 (3.35%) T-SQL
13 174 (3.31%) C++
14 162 (3.08%) ES6
15 136 (2.59%) Go
16 91 (1.73%) C
17 85 (1.62%) PowerShell
18 77 (1.46%) Apple Swift
19 65 (1.24%) Bash Shell
20 56 (1.07%) Objective-C
Qualifications
1 388 (7.38%) Degree
2 181 (3.44%) Security Cleared
3 156 (2.97%) Computer Science Degree
4 94 (1.79%) SC Cleared
5 45 (0.86%) ISEB
6 41 (0.78%) ISTQB
7 38 (0.72%) DV Cleared
8 27 (0.51%) Microsoft Certification
9 11 (0.21%) Numerate Degree
10 10 (0.19%) Master's Degree
10 10 (0.19%) MCITP
11 6 (0.11%) ISTQB Foundation Certification
11 6 (0.11%) Postgraduate
12 4 (0.076%) CISA
12 4 (0.076%) CISSP
12 4 (0.076%) MBA
12 4 (0.076%) PMI Certification
13 3 (0.057%) IIBA
13 3 (0.057%) MBCS
13 3 (0.057%) MCP
Quality Assurance & Compliance
1 383 (7.29%) QA
2 14 (0.27%) GDPR
3 10 (0.19%) Data Quality
4 9 (0.17%) PCI DSS
5 7 (0.13%) ISO 15022
5 7 (0.13%) ISO 20022
6 6 (0.11%) ISO 9001
7 5 (0.095%) PMO
8 4 (0.076%) ISO/IEC 27001
9 2 (0.038%) NIST
9 2 (0.038%) SLA
10 1 (0.019%) Dodd-Frank
10 1 (0.019%) WAI
System Software
1 1,118 (21.27%) Docker
2 56 (1.07%) VMware Infrastructure
3 36 (0.68%) Active Directory
3 36 (0.68%) vSphere
4 14 (0.27%) NDS
5 13 (0.25%) NetIQ eDirectory
6 11 (0.21%) Apache ZooKeeper
7 10 (0.19%) Postfix
8 6 (0.11%) Hyper-V
9 5 (0.095%) LXC
10 4 (0.076%) HDFS
10 4 (0.076%) vCloud
10 4 (0.076%) Virtual Machines
11 3 (0.057%) KVM
11 3 (0.057%) Microsoft App-V
12 2 (0.038%) VirtualBox
13 1 (0.019%) Cronacle
13 1 (0.019%) iptables
Systems Management
1 712 (13.55%) Kubernetes
2 236 (4.49%) Terraform
3 178 (3.39%) Ansible
4 69 (1.31%) Puppet
5 56 (1.07%) Opscode Chef
6 25 (0.48%) NetIQ Identity Manager
7 22 (0.42%) Istio
8 17 (0.32%) Kibana
9 16 (0.30%) HP Quality Center
10 15 (0.29%) Mesos
11 13 (0.25%) Marathon
11 13 (0.25%) Tivoli
12 9 (0.17%) Grafana
12 9 (0.17%) logstash
12 9 (0.17%) Single Sign-On
13 8 (0.15%) Oracle Identity Manager
13 8 (0.15%) Salt
13 8 (0.15%) Tivoli Identity Manager
14 6 (0.11%) HP ALM
15 5 (0.095%) Rancher
Vendors
1 624 (11.87%) Microsoft
2 224 (4.26%) Oracle
3 153 (2.91%) Google
4 72 (1.37%) Atlassian
5 57 (1.08%) Zend
6 56 (1.07%) VMware
7 55 (1.05%) SAP
8 50 (0.95%) Sitecore
9 38 (0.72%) Tableau
10 36 (0.68%) Salesforce.com
11 33 (0.63%) Splunk
12 32 (0.61%) Adobe
12 32 (0.61%) TIBCO
13 27 (0.51%) NetIQ
14 26 (0.49%) Xamarin
15 25 (0.48%) IBM
16 22 (0.42%) ForgeRock
17 20 (0.38%) Alterian
17 20 (0.38%) HP
18 16 (0.30%) Sage