Period
to 19 September 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 19 September 2020 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > England
6 months to
19 Sep 2020
Same period 2019 Same period 2018
Rank 29 29 23
Rank change year-on-year 0 -6 -3
Permanent jobs citing TDD 3,555 8,834 13,280
As % of all permanent jobs advertised in England 7.76% 6.77% 8.50%
As % of the Processes & Methodologies category 8.37% 7.34% 9.25%
Number of salaries quoted 3,492 7,639 11,902
Median annual salary £60,000 £57,500 £55,000
Median salary % change year-on-year +4.35% +4.55% +4.76%
10th Percentile £38,750 £35,000 £34,250
90th Percentile £90,000 £87,500 £85,000
UK median annual salary £60,000 £56,675 £53,000
% change year-on-year +5.87% +6.93% +6.00%

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 42,486 120,391 143,548
As % of all permanent IT jobs advertised in England 92.68% 92.21% 91.90%
Number of salaries quoted 34,755 95,321 115,184
Median annual salary £57,500 £52,500 £50,000
Median salary % change year-on-year +9.52% +5.00% -
10th Percentile £33,500 £30,000 £29,500
90th Percentile £92,500 £87,500 £83,750
UK median annual salary £55,000 £52,500 £50,000
% change year-on-year +4.76% +5.00% -

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 19 September 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 19 September 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 2,001 £70,000 +3.70% 412
South East -2 540 £55,000 +4.76% 108
North of England 0 490 £50,000 - 193
North West -2 275 £55,000 +4.76% 124
South West +12 233 £51,546 +14.55% 45
Midlands +22 200 £52,500 +10.53% 74
Yorkshire +17 170 £50,000 +5.26% 44
West Midlands +44 151 £52,500 +5.00% 51
East of England -35 67 £55,000 +4.76% 43
East Midlands -7 49 £52,000 +12.43% 23
North East +8 45 £45,000 +5.26% 25
TDD
UK

For the 6 months to 19 September 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 2,492 (70.10%) Agile Software Development
2 1,616 (45.46%) JavaScript
3 1,391 (39.13%) BDD
4 1,348 (37.92%) C#
5 1,285 (36.15%) .NET
6 1,072 (30.15%) Microservices
7 1,050 (29.54%) Java
8 952 (26.78%) AWS
9 906 (25.49%) AngularJS
10 884 (24.87%) DevOps
11 877 (24.67%) Azure
12 866 (24.36%) Scrum
12 866 (24.36%) React
13 849 (23.88%) Software Engineering
14 800 (22.50%) Docker
15 786 (22.11%) SQL
16 784 (22.05%) Node.js
17 730 (20.53%) HTML
18 728 (20.48%) MVC
19 724 (20.37%) SQL Server
20 721 (20.28%) CSS
21 688 (19.35%) Test Automation
22 678 (19.07%) Git (software)
23 671 (18.87%) .NET Core
24 636 (17.89%) Finance
25 622 (17.50%) Continuous Integration
26 601 (16.91%) ASP.NET
27 526 (14.80%) Python
28 497 (13.98%) REST
29 489 (13.76%) RESTful

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
1 203 (5.71%) Elasticsearch
2 102 (2.87%) Confluence
3 81 (2.28%) CMS
4 62 (1.74%) Tomcat
5 54 (1.52%) IIS
6 45 (1.27%) Apache
7 35 (0.98%) Apache Spark
8 31 (0.87%) Umbraco
9 23 (0.65%) Sitecore CMS
10 22 (0.62%) NServiceBus
11 21 (0.59%) JBoss
12 19 (0.53%) EPiServer
12 19 (0.53%) nginx
12 19 (0.53%) SharePoint
13 15 (0.42%) DNN
14 14 (0.39%) Moodle
14 14 (0.39%) WebSphere
15 13 (0.37%) Oracle Workflow
16 11 (0.31%) Immediacy CMS
16 11 (0.31%) WordPress
Applications
1 16 (0.45%) Microsoft Excel
2 7 (0.20%) Microsoft Office
3 5 (0.14%) Adobe Creative Suite
3 5 (0.14%) Figma
3 5 (0.14%) MS Visio
4 3 (0.084%) Photoshop
5 2 (0.056%) Chatbot
6 1 (0.028%) Adobe Illustrator
6 1 (0.028%) Adobe XD
6 1 (0.028%) InVision
6 1 (0.028%) Mingle
6 1 (0.028%) Spreadsheet
6 1 (0.028%) Zeplin
Business Applications
1 32 (0.90%) Dynamics CRM
2 14 (0.39%) Magento
3 7 (0.20%) IBM Operational Decision Manager
3 7 (0.20%) Payment Gateway
4 6 (0.17%) Shopify
5 5 (0.14%) Distributed Ledger
6 4 (0.11%) SDL Web 8
7 2 (0.056%) R3 Corda
7 2 (0.056%) Remedy ITSM
7 2 (0.056%) Unit4 Business World
8 1 (0.028%) Salesforce.com CRM
Cloud Services
1 952 (26.78%) AWS
2 877 (24.67%) Azure
3 213 (5.99%) Serverless
4 187 (5.26%) GCP
5 181 (5.09%) SaaS
6 130 (3.66%) GitHub
7 119 (3.35%) AWS Lambda
8 80 (2.25%) Amazon EC2
9 71 (2.00%) npm
10 59 (1.66%) Cloud Computing
11 52 (1.46%) PaaS
12 46 (1.29%) Amazon ECS
13 38 (1.07%) AWS CloudFormation
14 35 (0.98%) Amazon SQS
15 28 (0.79%) Amazon S3
16 23 (0.65%) Dynamics 365
17 22 (0.62%) OpenShift
18 21 (0.59%) Azure Data Factory
19 20 (0.56%) NuGet
20 19 (0.53%) Slack
Communications & Networking
1 71 (2.00%) Skype
2 62 (1.74%) HTTP
3 59 (1.66%) Internet
4 18 (0.51%) DNS
5 14 (0.39%) TCP/IP
6 11 (0.31%) Network Security
7 7 (0.20%) AMQP
8 6 (0.17%) H.323
9 5 (0.14%) SMTP
9 5 (0.14%) Wireless
10 4 (0.11%) FIX Connectivity
10 4 (0.11%) SSL
11 3 (0.084%) Broadband
11 3 (0.084%) NFC
11 3 (0.084%) SNMP
11 3 (0.084%) SSH
12 2 (0.056%) Firewall
12 2 (0.056%) MQTT
12 2 (0.056%) VoIP
13 1 (0.028%) Wi-Fi
Database & Business Intelligence
1 724 (20.37%) SQL Server
2 444 (12.49%) NoSQL
3 371 (10.44%) MongoDB
4 264 (7.43%) MySQL
5 184 (5.18%) PostgreSQL
6 162 (4.56%) Relational Database
7 122 (3.43%) SQL Server 2019
8 108 (3.04%) Redis
9 64 (1.80%) Data Warehouse
10 62 (1.74%) Amazon DynamoDB
11 57 (1.60%) Apache Cassandra
12 54 (1.52%) Big Data
13 43 (1.21%) Hadoop
14 37 (1.04%) SQL Server Reporting Services
15 36 (1.01%) Amazon RDS
16 30 (0.84%) SQL Server Integration Services
17 28 (0.79%) Azure SQL Database
18 25 (0.70%) Cosmos DB
19 22 (0.62%) SQL Server Analysis Services
20 21 (0.59%) SQL Server 2008
Development Applications
1 678 (19.07%) Git (software)
2 349 (9.82%) Jenkins
3 333 (9.37%) Selenium
4 262 (7.37%) JIRA
5 148 (4.16%) TeamCity
6 143 (4.02%) JUnit
7 127 (3.57%) Maven
8 124 (3.49%) Cucumber
9 115 (3.23%) webpack
10 109 (3.07%) SpecFlow
11 107 (3.01%) Mockito
12 99 (2.78%) Visual Studio
13 92 (2.59%) NUnit
14 88 (2.48%) Bitbucket
15 80 (2.25%) Cypress.io
16 72 (2.03%) WebDriver
17 71 (2.00%) Octopus Deploy
18 69 (1.94%) Mocha
19 68 (1.91%) Jasmine
20 65 (1.83%) SoapUI
General
1 636 (17.89%) Finance
2 141 (3.97%) Banking
3 119 (3.35%) Retail
4 102 (2.87%) Games
5 81 (2.28%) Marketing
6 72 (2.03%) Front Office
7 63 (1.77%) Public Sector
8 59 (1.66%) Law
9 44 (1.24%) Telecoms
10 41 (1.15%) Advertising
11 39 (1.10%) Electronics
12 32 (0.90%) Investment Banking
12 32 (0.90%) Manufacturing
13 28 (0.79%) Publishing
14 25 (0.70%) Back Office
15 23 (0.65%) Financial Institution
16 13 (0.37%) Legal
17 10 (0.28%) Pharmaceutical
18 8 (0.23%) Retail Banking
19 7 (0.20%) Military
Job Titles
1 2,374 (66.78%) Developer
2 656 (18.45%) .NET Developer
3 486 (13.67%) C# Developer
4 478 (13.45%) Java Developer
5 457 (12.86%) Senior Developer
6 393 (11.05%) Software Engineer
7 357 (10.04%) C# .NET Developer
8 277 (7.79%) Software Developer
9 270 (7.59%) Full Stack Developer
10 172 (4.84%) Lead Developer
11 146 (4.11%) Front End Developer (Client-Side Developer)
12 143 (4.02%) JavaScript Developer
13 138 (3.88%) React Developer
14 136 (3.83%) PHP Developer
15 126 (3.54%) Senior Java Developer
16 124 (3.49%) Senior Software Engineer
17 120 (3.38%) Java Engineer
18 102 (2.87%) Python Developer
19 95 (2.67%) Angular Developer
20 93 (2.62%) DevOps Engineer
Libraries, Frameworks & Software Standards
1 1,285 (36.15%) .NET
2 906 (25.49%) AngularJS
3 866 (24.36%) React
4 784 (22.05%) Node.js
5 730 (20.53%) HTML
6 721 (20.28%) CSS
7 671 (18.87%) .NET Core
8 601 (16.91%) ASP.NET
9 497 (13.98%) REST
10 489 (13.76%) RESTful
11 467 (13.14%) Spring
12 431 (12.12%) Web Services
13 416 (11.70%) ASP.NET MVC
14 408 (11.48%) .NET Framework
15 402 (11.31%) ASP.NET Web API
16 363 (10.21%) Vue.js
17 286 (8.05%) Entity Framework
18 278 (7.82%) HTML5
19 234 (6.58%) Spring Boot
20 215 (6.05%) jQuery
Miscellaneous
1 362 (10.18%) Greenfield Project
2 167 (4.70%) User Experience
3 131 (3.68%) Mobile App
4 128 (3.60%) Analytical Skills
5 90 (2.53%) Algorithms
6 80 (2.25%) Self-Motivation
7 75 (2.11%) Enterprise Software
8 66 (1.86%) Cloud Native
9 65 (1.83%) Data Structures
10 60 (1.69%) Virtual Team
11 56 (1.58%) Hedge funds
12 45 (1.27%) Equities
13 32 (0.90%) Foreign Exchange (FX)
13 32 (0.90%) Social Media
14 31 (0.87%) Derivative
15 29 (0.82%) Fixed Income
16 28 (0.79%) Media Streaming
17 27 (0.76%) Video\Live Streaming
18 26 (0.73%) Tandem
19 24 (0.68%) Social Network
Operating Systems
1 243 (6.84%) Linux
2 181 (5.09%) Windows
3 100 (2.81%) Apple iOS
4 99 (2.78%) Android
5 57 (1.60%) Unix
6 18 (0.51%) Windows Server
7 15 (0.42%) VMS
8 12 (0.34%) Ubuntu
9 8 (0.23%) CentOS
10 7 (0.20%) Red Hat Enterprise Linux
11 6 (0.17%) Mac OS
12 5 (0.14%) Mac OS X
13 4 (0.11%) Windows 10
14 3 (0.084%) AIX
14 3 (0.084%) Debian
14 3 (0.084%) Windows XP
15 1 (0.028%) Solaris
15 1 (0.028%) tvOS
15 1 (0.028%) Windows Embedded Compact
15 1 (0.028%) Windows Mobile
Processes & Methodologies
1 2,492 (70.10%) Agile Software Development
2 1,391 (39.13%) BDD
3 1,072 (30.15%) Microservices
4 884 (24.87%) DevOps
5 866 (24.36%) Scrum
6 849 (23.88%) Software Engineering
7 728 (20.48%) MVC
8 688 (19.35%) Test Automation
9 622 (17.50%) Continuous Integration
10 486 (13.67%) OO
11 364 (10.24%) Fintech
12 363 (10.21%) Kanban
13 351 (9.87%) Unit Testing
14 326 (9.17%) Mentoring
15 324 (9.11%) Pair Programming
16 318 (8.95%) SOLID
17 255 (7.17%) Continuous Delivery
17 255 (7.17%) Front End Development
18 247 (6.95%) OOP
19 234 (6.58%) Problem-Solving
Programming Languages
1 1,616 (45.46%) JavaScript
2 1,348 (37.92%) C#
3 1,050 (29.54%) Java
4 786 (22.11%) SQL
5 526 (14.80%) Python
6 435 (12.24%) TypeScript
7 281 (7.90%) Java 8
8 240 (6.75%) PHP
9 179 (5.04%) Scala
10 141 (3.97%) Ruby
11 138 (3.88%) Kotlin
12 127 (3.57%) Go
13 125 (3.52%) C++
14 118 (3.32%) T-SQL
15 111 (3.12%) ES6
16 77 (2.17%) PowerShell
17 60 (1.69%) C
18 57 (1.60%) Apple Swift
19 45 (1.27%) Bash Shell
19 45 (1.27%) Objective-C
Qualifications
1 298 (8.38%) Degree
2 234 (6.58%) Security Cleared
3 158 (4.44%) SC Cleared
4 130 (3.66%) Computer Science Degree
5 36 (1.01%) DV Cleared
6 21 (0.59%) ISTQB
7 20 (0.56%) ISEB
8 18 (0.51%) Microsoft Certification
9 10 (0.28%) MCITP
10 9 (0.25%) PhD
11 8 (0.23%) Numerate Degree
12 7 (0.20%) Master's Degree
13 6 (0.17%) ISTQB Foundation Certification
14 4 (0.11%) CISA
14 4 (0.11%) CISSP
15 3 (0.084%) BPSS Clearance
15 3 (0.084%) DBS Check
16 2 (0.056%) CISM
16 2 (0.056%) ISTQB Advanced Certification
16 2 (0.056%) Postgraduate
Quality Assurance & Compliance
1 263 (7.40%) QA
2 12 (0.34%) Data Quality
3 9 (0.25%) GDPR
4 6 (0.17%) PCI DSS
5 3 (0.084%) WCAG
6 2 (0.056%) ISO/IEC 27001
6 2 (0.056%) NIST
6 2 (0.056%) SLA
7 1 (0.028%) Dodd-Frank
System Software
1 800 (22.50%) Docker
2 41 (1.15%) VMware Infrastructure
3 36 (1.01%) Active Directory
4 22 (0.62%) vSphere
5 16 (0.45%) NDS
6 15 (0.42%) NetIQ eDirectory
7 12 (0.34%) Postfix
8 8 (0.23%) Hyper-V
9 6 (0.17%) KVM
10 4 (0.11%) LXC
10 4 (0.11%) vCloud
11 3 (0.084%) Microsoft App-V
12 2 (0.056%) HDFS
13 1 (0.028%) Apache ZooKeeper
13 1 (0.028%) Cronacle
13 1 (0.028%) iptables
Systems Management
1 452 (12.71%) Kubernetes
2 201 (5.65%) Terraform
3 124 (3.49%) Ansible
4 52 (1.46%) Opscode Chef
5 51 (1.43%) Puppet
6 25 (0.70%) Istio
6 25 (0.70%) NetIQ Identity Manager
7 15 (0.42%) Mesos
8 14 (0.39%) Tivoli
9 13 (0.37%) Marathon
10 8 (0.23%) HP Quality Center
10 8 (0.23%) Oracle Identity Manager
10 8 (0.23%) Tivoli Identity Manager
11 6 (0.17%) Grafana
11 6 (0.17%) Single Sign-On
12 5 (0.14%) Kibana
12 5 (0.14%) Prometheus
13 4 (0.11%) HP ALM
13 4 (0.11%) MIIS
13 4 (0.11%) Rancher
Vendors
1 396 (11.14%) Microsoft
2 149 (4.19%) Oracle
3 114 (3.21%) Google
4 45 (1.27%) Atlassian
5 43 (1.21%) SAP
5 43 (1.21%) Zend
6 42 (1.18%) VMware
7 29 (0.82%) IBM
8 27 (0.76%) NetIQ
9 26 (0.73%) Sitecore
10 23 (0.65%) ForgeRock
11 18 (0.51%) Xamarin
12 16 (0.45%) Adobe
12 16 (0.45%) Facebook
12 16 (0.45%) Sony
13 15 (0.42%) Salesforce.com
14 13 (0.37%) MuleSoft
14 13 (0.37%) Okta
15 12 (0.34%) HP
15 12 (0.34%) Remedy