Period
to 23 May 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 May 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > England
6 months to
23 May 2019
Same period 2018 Same period 2017
Rank 28 20 18
Rank change year-on-year -8 -2 +7
Permanent jobs citing TDD 9,579 14,733 14,886
As % of all permanent IT jobs advertised in England 7.19% 9.16% 9.34%
As % of the Processes & Methodologies category 7.84% 9.97% 10.21%
Number of salaries quoted 7,859 12,815 13,425
England median annual salary £55,000 £52,500 £52,000
Median salary % change year-on-year +4.76% +0.96% +4.00%
10th Percentile £34,775 £33,750 £32,500
90th Percentile £87,500 £80,000 £77,500
UK median annual salary £55,000 £51,000 £50,000
% change year-on-year +7.84% +2.00% -

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 122,246 147,717 145,793
As % of all permanent IT jobs advertised in England 91.70% 91.83% 91.45%
Number of salaries quoted 96,425 119,858 120,462
England median annual salary £52,500 £50,000 £50,000
Median salary % change year-on-year +5.00% - +5.26%
10th Percentile £30,000 £29,750 £28,000
90th Percentile £86,250 £82,500 £80,000
UK median annual salary £52,500 £50,000 £47,500
% change year-on-year +5.00% +5.26% -

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 May 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 May 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 -7 4,690 £65,000 +4.00% 367
South East -13 1,759 £50,000 +5.26% 119
North of England -14 1,377 £47,500 +5.56% 127
North West -12 736 £50,750 +12.78% 76
South West -20 669 £45,000 -5.26% 43
Yorkshire -10 562 £45,000 - 41
Midlands -14 557 £45,000 +3.45% 54
East of England -16 486 £50,000 - 53
West Midlands -12 330 £45,000 - 32
East Midlands -10 227 £44,000 +3.53% 22
North East -11 76 £47,750 +6.11% 10
TDD
UK

For the 6 months to 23 May 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 7,228 (75.46%) Agile Software Development
2 4,141 (43.23%) C#
3 4,022 (41.99%) JavaScript
4 3,815 (39.83%) BDD
5 3,643 (38.03%) Java
6 3,598 (37.56%) .NET
7 2,664 (27.81%) Scrum
8 2,563 (26.76%) SQL
9 2,460 (25.68%) Continuous Integration
10 2,450 (25.58%) MVC
11 2,371 (24.75%) AngularJS
12 2,334 (24.37%) Software Engineering
13 2,208 (23.05%) HTML
14 2,200 (22.97%) Git (software)
15 2,106 (21.99%) ASP.NET
16 2,092 (21.84%) SQL Server
17 1,993 (20.81%) Test Automation
18 1,983 (20.70%) CSS
19 1,760 (18.37%) DevOps
20 1,724 (18.00%) Finance
21 1,706 (17.81%) Amazon AWS
22 1,693 (17.67%) Microservices
23 1,626 (16.97%) RESTful
24 1,609 (16.80%) React
25 1,542 (16.10%) Microsoft Azure
26 1,488 (15.53%) Spring
26 1,488 (15.53%) Node.js
27 1,438 (15.01%) ASP.NET MVC
28 1,395 (14.56%) Microsoft
29 1,362 (14.22%) ASP.NET Web API

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
1 305 (3.18%) Elasticsearch
2 304 (3.17%) Confluence
3 192 (2.00%) Apache Spark
4 175 (1.83%) Apache
5 162 (1.69%) CMS
6 132 (1.38%) IIS
7 128 (1.34%) Tomcat
8 97 (1.01%) Umbraco
9 78 (0.81%) Cloud Foundry
10 72 (0.75%) JBoss
11 71 (0.74%) Sitecore CMS
12 66 (0.69%) nginx
13 55 (0.57%) EPiServer
14 54 (0.56%) WordPress
15 50 (0.52%) Apache Solr
16 45 (0.47%) SharePoint
17 44 (0.46%) Sitefinity
18 36 (0.38%) Kentico
19 35 (0.37%) WebLogic
20 31 (0.32%) NServiceBus
Applications
1 24 (0.25%) Chatbot
2 21 (0.22%) Microsoft Office
3 16 (0.17%) Photoshop
4 15 (0.16%) Microsoft Project
5 10 (0.10%) MS Visio
6 8 (0.084%) Adobe XD
6 8 (0.084%) InVision
6 8 (0.084%) Microsoft Excel
6 8 (0.084%) Zeplin
7 4 (0.042%) Sketch
8 2 (0.021%) GIMP
9 1 (0.010%) EngageOne
9 1 (0.010%) Fireworks
9 1 (0.010%) HipChat
9 1 (0.010%) SPSS
Business Applications
1 76 (0.79%) Payment Gateway
2 37 (0.39%) Magento
3 28 (0.29%) Dynamics CRM
4 19 (0.20%) SAP Hybris
5 15 (0.16%) Distributed Ledger
6 10 (0.10%) Oracle BPM
7 9 (0.094%) Dynamics NAV
8 8 (0.084%) nopCommerce
9 7 (0.073%) Fredhopper
10 6 (0.063%) FastStats
11 5 (0.052%) Remedy ITSM
12 4 (0.042%) R3 Corda
13 3 (0.031%) Oracle Applications
14 2 (0.021%) WebTrends
15 1 (0.010%) Dynamics AX
15 1 (0.010%) Endur
15 1 (0.010%) LatentZero
15 1 (0.010%) LongView
15 1 (0.010%) Maximo
15 1 (0.010%) Oracle CRM
Cloud Services
1 1,706 (17.81%) Amazon AWS
2 1,542 (16.10%) Microsoft Azure
3 362 (3.78%) SaaS
4 351 (3.66%) GitHub
5 338 (3.53%) Google Cloud Platform
6 248 (2.59%) Serverless
7 171 (1.79%) PaaS
8 135 (1.41%) npm
9 126 (1.32%) Amazon EC2
10 122 (1.27%) Office 365
11 118 (1.23%) Cloud Computing
12 111 (1.16%) AWS Lambda
13 98 (1.02%) G Suite
13 98 (1.02%) OpenShift
14 87 (0.91%) IaaS
15 80 (0.84%) Amazon S3
16 64 (0.67%) AWS CloudFormation
17 48 (0.50%) Power Platform
18 43 (0.45%) Amazon SQS
19 41 (0.43%) Heroku
Communications & Networking
1 278 (2.90%) Internet
2 210 (2.19%) HTTP
3 84 (0.88%) TCP/IP
4 50 (0.52%) Broadband
5 38 (0.40%) SSL
6 37 (0.39%) Bluetooth
7 30 (0.31%) Wireless
8 26 (0.27%) AMQP
8 26 (0.27%) HTTPS
8 26 (0.27%) SSH
9 25 (0.26%) Wi-Fi
10 23 (0.24%) RIP
11 20 (0.21%) Skype
12 19 (0.20%) DNS
12 19 (0.20%) Hyperconnected
12 19 (0.20%) Network Security
13 18 (0.19%) Reverse Proxy
14 17 (0.18%) Firewall
15 16 (0.17%) MQTT
16 14 (0.15%) SNMP
Database & Business Intelligence
1 2,092 (21.84%) SQL Server
2 1,139 (11.89%) NoSQL
3 660 (6.89%) SQL Server 2016
4 651 (6.80%) MySQL
5 635 (6.63%) MongoDB
6 463 (4.83%) PostgreSQL
7 421 (4.40%) Big Data
8 392 (4.09%) Relational Database
9 277 (2.89%) Redis
10 264 (2.76%) Hadoop
11 223 (2.33%) Apache Cassandra
12 120 (1.25%) Neo4j
13 109 (1.14%) SQL Server Reporting Services
14 106 (1.11%) Amazon DynamoDB
15 96 (1.00%) SQL Server Integration Services
16 85 (0.89%) Blockchain
16 85 (0.89%) Data Warehouse
17 82 (0.86%) Amazon RDS
18 68 (0.71%) RDBMS
19 59 (0.62%) SQL Server 2012
Development Applications
1 2,200 (22.97%) Git (software)
2 1,170 (12.21%) Jenkins
3 1,049 (10.95%) Selenium
4 953 (9.95%) JIRA
5 680 (7.10%) Cucumber
6 574 (5.99%) Maven
7 473 (4.94%) Visual Studio
8 472 (4.93%) JUnit
9 470 (4.91%) TeamCity
10 386 (4.03%) Team Foundation Server
11 342 (3.57%) SoapUI
12 316 (3.30%) WebDriver
13 315 (3.29%) NUnit
14 258 (2.69%) Subversion
15 256 (2.67%) SpecFlow
16 231 (2.41%) Gradle
17 222 (2.32%) Jasmine
18 217 (2.27%) Atlassian Bamboo
19 215 (2.24%) Octopus Deploy
20 212 (2.21%) JMeter
General
1 1,724 (18.00%) Finance
2 658 (6.87%) Retail
3 574 (5.99%) Banking
4 428 (4.47%) Games
5 320 (3.34%) Marketing
6 236 (2.46%) Telecoms
7 167 (1.74%) Manufacturing
8 116 (1.21%) Electronics
9 104 (1.09%) Advertising
10 87 (0.91%) Investment Banking
11 86 (0.90%) Law
12 82 (0.86%) Financial Institution
13 74 (0.77%) Automotive
14 68 (0.71%) Retail Banking
15 57 (0.60%) Publishing
16 52 (0.54%) Front Office
17 50 (0.52%) Back Office
18 32 (0.33%) Pharmaceutical
19 31 (0.32%) Legal
20 19 (0.20%) Music Industry
Job Titles
1 6,549 (68.37%) Developer
2 2,005 (20.93%) .NET Developer
3 1,738 (18.14%) C# Developer
4 1,613 (16.84%) Java Developer
5 1,330 (13.88%) Senior Developer
6 1,155 (12.06%) C# .NET Developer
7 945 (9.87%) Software Engineer
8 736 (7.68%) Software Developer
9 509 (5.31%) ASP.NET Developer
10 500 (5.22%) C# ASP.NET Developer
11 461 (4.81%) Front End Developer (Client-Side Developer)
12 458 (4.78%) JavaScript Developer
13 421 (4.40%) Java Engineer
14 412 (4.30%) Full Stack Developer
15 394 (4.11%) Senior Java Developer
16 358 (3.74%) Lead Developer
17 329 (3.43%) Agile Developer
18 319 (3.33%) ASP.NET MVC Developer
18 319 (3.33%) Senior .NET Developer
19 313 (3.27%) Architect
Libraries, Frameworks & Software Standards
1 3,598 (37.56%) .NET
2 2,371 (24.75%) AngularJS
3 2,208 (23.05%) HTML
4 2,106 (21.99%) ASP.NET
5 1,983 (20.70%) CSS
6 1,626 (16.97%) RESTful
7 1,609 (16.80%) React
8 1,488 (15.53%) Node.js
8 1,488 (15.53%) Spring
9 1,438 (15.01%) ASP.NET MVC
10 1,362 (14.22%) ASP.NET Web API
11 1,176 (12.28%) Web Services
12 1,169 (12.20%) REST
13 1,041 (10.87%) .NET Framework
14 978 (10.21%) HTML5
15 762 (7.95%) jQuery
16 748 (7.81%) WCF
17 717 (7.49%) Entity Framework
18 712 (7.43%) .NET Core
19 538 (5.62%) JSON
Miscellaneous
1 1,202 (12.55%) Greenfield Project
2 743 (7.76%) User Experience
3 620 (6.47%) Fintech
4 527 (5.50%) Enterprise Software
5 400 (4.18%) Analytical Skills
6 320 (3.34%) Mobile App
7 271 (2.83%) Algorithms
8 236 (2.46%) Self-Motivation
9 123 (1.28%) Data Structures
10 112 (1.17%) Cloud Native
11 64 (0.67%) Virtual Team
12 60 (0.63%) Social Media
13 57 (0.60%) Hedge funds
14 56 (0.58%) Tandem
15 55 (0.57%) Linux Command Line
16 53 (0.55%) Management Information System
17 52 (0.54%) Internet of Things
18 49 (0.51%) Foreign Exchange (FX)
19 47 (0.49%) Blog
19 47 (0.49%) Public Cloud
Operating Systems
1 874 (9.12%) Linux
2 509 (5.31%) Windows
3 412 (4.30%) Android
4 296 (3.09%) Apple iOS
5 117 (1.22%) Unix
6 37 (0.39%) Windows Server
7 33 (0.34%) Red Hat Enterprise Linux
8 23 (0.24%) Mac OS X
8 23 (0.24%) Ubuntu
9 20 (0.21%) CentOS
10 15 (0.16%) openSUSE
11 14 (0.15%) Windows 10
12 12 (0.13%) Mac OS
13 6 (0.063%) Debian
14 5 (0.052%) watchOS
15 4 (0.042%) Windows 7
15 4 (0.042%) Windows Mobile
15 4 (0.042%) zOS
16 1 (0.010%) Embedded Linux
16 1 (0.010%) Windows Server 2008
Processes & Methodologies
1 7,228 (75.46%) Agile Software Development
2 3,815 (39.83%) BDD
3 2,664 (27.81%) Scrum
4 2,460 (25.68%) Continuous Integration
5 2,450 (25.58%) MVC
6 2,334 (24.37%) Software Engineering
7 1,993 (20.81%) Test Automation
8 1,760 (18.37%) DevOps
9 1,693 (17.67%) Microservices
10 1,265 (13.21%) OO
11 1,159 (12.10%) Kanban
12 1,057 (11.03%) Unit Testing
13 966 (10.08%) Mentoring
14 908 (9.48%) Pair Programming
15 893 (9.32%) SOLID
16 888 (9.27%) Problem-Solving
17 884 (9.23%) Continuous Delivery
18 724 (7.56%) Open Source
19 705 (7.36%) Front End Development
20 661 (6.90%) SDLC
Programming Languages
1 4,141 (43.23%) C#
2 4,022 (41.99%) JavaScript
3 3,643 (38.03%) Java
4 2,563 (26.76%) SQL
5 1,195 (12.48%) Python
6 825 (8.61%) Java 8
7 756 (7.89%) Ruby
8 548 (5.72%) Scala
9 542 (5.66%) C++
10 481 (5.02%) PHP
11 462 (4.82%) TypeScript
12 394 (4.11%) C
13 354 (3.70%) ES6
14 349 (3.64%) T-SQL
15 219 (2.29%) Kotlin
16 199 (2.08%) Go
17 181 (1.89%) PowerShell
18 143 (1.49%) Bash Shell
19 118 (1.23%) Apple Swift
20 110 (1.15%) Groovy
Qualifications
1 919 (9.59%) Degree
2 400 (4.18%) Security Cleared
3 319 (3.33%) Computer Science Degree
4 260 (2.71%) SC Cleared
5 168 (1.75%) DV Cleared
6 141 (1.47%) ISTQB
7 74 (0.77%) Microsoft Certification
8 73 (0.76%) ISTQB Foundation Certification
9 68 (0.71%) ISEB
10 34 (0.35%) Numerate Degree
11 19 (0.20%) PMI Certification
12 16 (0.17%) DBS Check
12 16 (0.17%) PhD
13 12 (0.13%) AWS Certification
13 12 (0.13%) Postgraduate
14 10 (0.10%) MCSE
15 9 (0.094%) HND
16 8 (0.084%) CISSP
17 7 (0.073%) BPSS Clearance
17 7 (0.073%) ISTQB Advanced Certification
Quality Assurance & Compliance
1 851 (8.88%) QA
2 34 (0.35%) PSD2
3 32 (0.33%) GDPR
4 30 (0.31%) WAI
5 20 (0.21%) Data Quality
6 16 (0.17%) SLA
7 9 (0.094%) 21 CFR Part 11
8 8 (0.084%) PMO
9 7 (0.073%) HIPAA
9 7 (0.073%) MiFID
9 7 (0.073%) WCAG
10 6 (0.063%) ISO/IEC 27001
11 4 (0.042%) EMIR
12 3 (0.031%) PCI DSS
13 2 (0.021%) Dodd-Frank
13 2 (0.021%) TickIT
14 1 (0.010%) FedRAMP
14 1 (0.010%) HL7
14 1 (0.010%) ISO 20022
14 1 (0.010%) SEPA
System Software
1 1,345 (14.04%) Docker
2 71 (0.74%) Active Directory
3 68 (0.71%) vSphere
4 46 (0.48%) Apache ZooKeeper
5 40 (0.42%) VirtualBox
6 39 (0.41%) VMware Infrastructure
7 34 (0.35%) Firmware
8 26 (0.27%) HDFS
9 14 (0.15%) Hyper-V
9 14 (0.15%) Varnish
10 12 (0.13%) Virtual Machines
11 7 (0.073%) Apache Flume
12 5 (0.052%) etcd
12 5 (0.052%) Tivoli Workload Scheduler
13 4 (0.042%) NFS
13 4 (0.042%) Samba
13 4 (0.042%) Virtual Desktop
13 4 (0.042%) VMware ESXi
13 4 (0.042%) VMware NSX
14 3 (0.031%) Oracle RAC
Systems Management
1 676 (7.06%) Kubernetes
2 378 (3.95%) Ansible
3 245 (2.56%) Terraform
4 188 (1.96%) Puppet
5 176 (1.84%) Opscode Chef
6 71 (0.74%) HP Quality Center
7 61 (0.64%) Rancher
8 50 (0.52%) Kibana
9 49 (0.51%) Prometheus
10 46 (0.48%) Grafana
11 28 (0.29%) Mesos
12 26 (0.27%) Salt
13 17 (0.18%) Hadoop YARN
13 17 (0.18%) HP ALM
13 17 (0.18%) logstash
13 17 (0.18%) Marathon
14 15 (0.16%) Istio
15 13 (0.14%) Docker Swarm
16 11 (0.11%) Nagios
17 10 (0.10%) Consul
Vendors
1 1,395 (14.56%) Microsoft
2 522 (5.45%) Google
3 501 (5.23%) Oracle
4 159 (1.66%) WorldPay
5 156 (1.63%) SAP
6 114 (1.19%) Xamarin
7 102 (1.06%) Splunk
8 94 (0.98%) Sitecore
9 80 (0.84%) Facebook
10 68 (0.71%) HP
11 62 (0.65%) Atlassian
11 62 (0.65%) Salesforce.com
12 60 (0.63%) Apple
13 58 (0.61%) VMware
14 55 (0.57%) IBM
15 45 (0.47%) Twitter
16 41 (0.43%) Cypress Semiconductor
17 40 (0.42%) Zend
18 36 (0.38%) Tableau
19 35 (0.37%) New Relic