Period
to 29 October 2020

The following table provides summary statistics for permanent job vacancies advertised in the UK excluding London 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 29 October 2020 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > UK excluding London
6 months to
29 Oct 2020
Same period 2019 Same period 2018
Rank 36 35 27
Rank change year-on-year -1 -8 -2
Permanent jobs citing TDD 1,732 4,615 7,173
As % of all permanent jobs advertised in the UK excluding London 6.22% 5.86% 7.75%
As % of the Processes & Methodologies category 6.78% 6.40% 8.47%
Number of salaries quoted 1,738 3,993 6,603
Median annual salary £52,500 £50,000 £47,500
Median salary % change year-on-year +5.00% +5.26% +5.56%
10th Percentile £36,250 £32,500 £32,500
90th Percentile £77,500 £70,000 £68,750
UK median annual salary £60,000 £57,500 £55,000
% change year-on-year +4.35% +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 the UK excluding London with a requirement for process or methodology skills.

All Process and Methodology Skills
UK excluding London
Permanent vacancies with a requirement for process or methodology skills 25,548 72,089 84,652
As % of all permanent IT jobs advertised in the UK excluding London 91.80% 91.53% 91.51%
Number of salaries quoted 20,933 56,369 67,164
Median annual salary £49,000 £45,000 £45,000
Median salary % change year-on-year +8.89% - +5.88%
10th Percentile £31,250 £27,500 £26,250
90th Percentile £72,500 £71,250 £70,000
UK median annual salary £55,000 £52,500 £50,000
% change year-on-year +4.76% +5.00% -

TDD
Job Vacancy Trend in the UK excluding London

Job postings citing TDD as a proportion of all IT jobs advertised in the UK excluding London.

Job vacancy trend for TDD in the UK excluding London

TDD
Salary Trend in the UK excluding London

3-month moving average salary quoted in jobs citing TDD in the UK excluding London.

Salary trend for TDD in the UK excluding London

TDD
Salary Histogram in the UK excluding London

Salary distribution for jobs citing TDD in the UK excluding London over the 6 months to 29 October 2020.

Salary histogram for TDD in the UK excluding London

TDD
Job Locations in the UK excluding London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the UK excluding London region over the 6 months to 29 October 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
South East -1 554 £55,000 +4.76% 147
North of England -1 525 £50,000 - 214
North West -7 280 £55,000 +4.76% 136
South West +11 225 £50,000 +5.26% 66
Midlands +18 204 £53,990 +7.98% 89
Yorkshire +11 193 £50,000 - 53
West Midlands +32 157 £53,990 +7.98% 56
Scotland +6 126 £50,000 - 57
East of England -21 71 £56,250 +7.14% 51
North East +11 52 £47,500 +5.56% 25
East Midlands -13 47 £53,750 +26.47% 33
Wales -14 20 £50,000 +5.26% 23
Northern Ireland +4 11 £57,500 +4.55% 8
TDD
UK

For the 6 months to 29 October 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 UK excluding London region with a requirement for TDD.

1 1,184 (68.36%) Agile Software Development
2 826 (47.69%) C#
3 761 (43.94%) JavaScript
4 749 (43.24%) .NET
5 566 (32.68%) BDD
6 499 (28.81%) Java
6 499 (28.81%) SQL
7 457 (26.39%) Azure
8 439 (25.35%) Scrum
9 417 (24.08%) Software Engineering
10 412 (23.79%) DevOps
11 411 (23.73%) HTML
12 402 (23.21%) AngularJS
13 388 (22.40%) .NET Core
14 375 (21.65%) CSS
14 375 (21.65%) MVC
15 370 (21.36%) Microservices
16 361 (20.84%) Git (software)
17 351 (20.27%) Test Automation
18 341 (19.69%) AWS
19 334 (19.28%) Docker
20 314 (18.13%) Continuous Integration
21 302 (17.44%) React
22 297 (17.15%) ASP.NET
23 296 (17.09%) SQL Server
24 268 (15.47%) OO
25 236 (13.63%) Finance
26 234 (13.51%) Python
27 231 (13.34%) .NET Framework
28 227 (13.11%) RESTful

TDD
Co-occurring IT Skills in the UK excluding London 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 54 (3.12%) Elasticsearch
2 39 (2.25%) CMS
3 35 (2.02%) Confluence
4 34 (1.96%) Tomcat
5 28 (1.62%) nginx
6 24 (1.39%) IIS
7 22 (1.27%) NServiceBus
8 19 (1.10%) Apache
9 15 (0.87%) Oracle Workflow
10 14 (0.81%) WebSphere
11 13 (0.75%) JBoss
12 11 (0.64%) Umbraco
13 9 (0.52%) Apache Spark
14 7 (0.40%) GlassFish
14 7 (0.40%) SharePoint
14 7 (0.40%) WordPress
15 6 (0.35%) BizTalk Server
15 6 (0.35%) Mule
16 5 (0.29%) Mule ESB
16 5 (0.29%) Red Hat Fuse
Applications
1 7 (0.40%) Microsoft Office
2 6 (0.35%) Figma
3 5 (0.29%) MS Visio
4 4 (0.23%) Microsoft Excel
5 3 (0.17%) Adobe Creative Suite
Business Applications
1 21 (1.21%) Dynamics CRM
2 12 (0.69%) Magento
3 7 (0.40%) IBM Operational Decision Manager
4 6 (0.35%) Shopify
5 2 (0.12%) Salesforce.com CRM
6 1 (0.058%) nopCommerce
6 1 (0.058%) Odoo
6 1 (0.058%) Payment Gateway
Cloud Services
1 457 (26.39%) Azure
2 341 (19.69%) AWS
3 100 (5.77%) SaaS
4 86 (4.97%) Serverless
5 82 (4.73%) GCP
6 47 (2.71%) AWS Lambda
7 40 (2.31%) GitHub
7 40 (2.31%) npm
8 37 (2.14%) Cloud Computing
9 35 (2.02%) Amazon EC2
10 26 (1.50%) AWS CloudFormation
11 21 (1.21%) Dynamics 365
11 21 (1.21%) PaaS
12 12 (0.69%) Amazon S3
13 11 (0.64%) OpenShift
14 10 (0.58%) Amazon ECS
14 10 (0.58%) Logic Apps
14 10 (0.58%) NuGet
15 9 (0.52%) IaaS
16 7 (0.40%) Azure Data Factory
Communications & Networking
1 44 (2.54%) Skype
2 16 (0.92%) HTTP
2 16 (0.92%) TCP/IP
3 13 (0.75%) DNS
4 8 (0.46%) H.323
5 7 (0.40%) Network Security
6 6 (0.35%) SSL
7 5 (0.29%) AMQP
7 5 (0.29%) Internet
8 3 (0.17%) Wireless
9 2 (0.12%) Wi-Fi
9 2 (0.12%) Wireshark
10 1 (0.058%) DSL
10 1 (0.058%) Firewall
10 1 (0.058%) IPv6
10 1 (0.058%) MQTT
10 1 (0.058%) PPP
10 1 (0.058%) SSH
10 1 (0.058%) VLAN
10 1 (0.058%) ZigBee
Database & Business Intelligence
1 296 (17.09%) SQL Server
2 196 (11.32%) NoSQL
3 153 (8.83%) MySQL
4 110 (6.35%) MongoDB
5 108 (6.24%) Relational Database
6 107 (6.18%) PostgreSQL
7 52 (3.00%) Redis
8 27 (1.56%) Amazon DynamoDB
9 22 (1.27%) Big Data
10 20 (1.15%) Data Warehouse
11 19 (1.10%) SQL Server Reporting Services
12 13 (0.75%) Hadoop
13 12 (0.69%) Amazon RDS
13 12 (0.69%) Azure SQL Database
13 12 (0.69%) SQL Server Integration Services
14 11 (0.64%) Cosmos DB
14 11 (0.64%) RDBMS
14 11 (0.64%) SQL Server Analysis Services
15 10 (0.58%) SQL Server 2012
16 8 (0.46%) Apache Cassandra
Development Applications
1 361 (20.84%) Git (software)
2 193 (11.14%) Selenium
3 163 (9.41%) Jenkins
4 119 (6.87%) JIRA
5 84 (4.85%) Maven
6 75 (4.33%) JUnit
7 68 (3.93%) NUnit
8 58 (3.35%) Mockito
8 58 (3.35%) Visual Studio
9 51 (2.94%) TeamCity
10 50 (2.89%) WebDriver
11 47 (2.71%) SpecFlow
12 45 (2.60%) SoapUI
13 38 (2.19%) Cucumber
14 37 (2.14%) webpack
15 36 (2.08%) Subversion
15 36 (2.08%) Team Foundation Server
16 32 (1.85%) Bitbucket
17 26 (1.50%) Mercurial
18 22 (1.27%) Cypress.io
General
1 236 (13.63%) Finance
2 54 (3.12%) Public Sector
3 41 (2.37%) Marketing
4 40 (2.31%) Banking
5 38 (2.19%) Retail
6 33 (1.91%) Telecoms
7 27 (1.56%) Electronics
8 25 (1.44%) Games
9 20 (1.15%) Manufacturing
10 14 (0.81%) Law
11 7 (0.40%) Back Office
12 6 (0.35%) Local Government
13 5 (0.29%) Investment Banking
14 3 (0.17%) Legal
15 2 (0.12%) Advertising
15 2 (0.12%) Housing Association
15 2 (0.12%) Pharmaceutical
16 1 (0.058%) iGaming
16 1 (0.058%) Military
16 1 (0.058%) Norwegian Language
Job Titles
1 1,202 (69.40%) Developer
2 327 (18.88%) .NET Developer
3 283 (16.34%) Software Developer
4 267 (15.42%) Senior Developer
5 245 (14.15%) Software Engineer
6 218 (12.59%) C# Developer
7 181 (10.45%) Java Developer
8 152 (8.78%) C# .NET Developer
9 121 (6.99%) Lead Developer
10 119 (6.87%) Full Stack Developer
11 100 (5.77%) .NET Software Developer
12 79 (4.56%) PHP Developer
13 69 (3.98%) Test Engineer
14 68 (3.93%) Senior .NET Developer
15 67 (3.87%) Front End Developer (Client-Side Developer)
16 63 (3.64%) C# Software Developer
16 63 (3.64%) Senior Software Engineer
17 57 (3.29%) Senior Software Developer
18 53 (3.06%) React Developer
19 50 (2.89%) JavaScript Developer
Libraries, Frameworks & Software Standards
1 749 (43.24%) .NET
2 411 (23.73%) HTML
3 402 (23.21%) AngularJS
4 388 (22.40%) .NET Core
5 375 (21.65%) CSS
6 302 (17.44%) React
7 297 (17.15%) ASP.NET
8 231 (13.34%) .NET Framework
9 227 (13.11%) RESTful
10 222 (12.82%) Node.js
10 222 (12.82%) REST
11 215 (12.41%) Web Services
12 207 (11.95%) Spring
13 187 (10.80%) ASP.NET MVC
14 175 (10.10%) Vue.js
15 157 (9.06%) Entity Framework
16 130 (7.51%) ASP.NET Web API
17 127 (7.33%) jQuery
18 121 (6.99%) HTML5
19 102 (5.89%) Spring Boot
Miscellaneous
1 142 (8.20%) Greenfield Project
2 83 (4.79%) User Experience
3 66 (3.81%) Mobile App
4 59 (3.41%) Algorithms
5 58 (3.35%) Data Structures
6 52 (3.00%) Enterprise Software
7 36 (2.08%) Analytical Skills
8 28 (1.62%) Cloud Native
9 25 (1.44%) Virtual Team
10 21 (1.21%) LIMS
11 19 (1.10%) Self-Motivation
12 17 (0.98%) NHS
13 13 (0.75%) N-Tier
14 12 (0.69%) Blog
14 12 (0.69%) Video Conferencing
15 10 (0.58%) iPhone
15 10 (0.58%) Renewable Energy
16 9 (0.52%) Xbox
17 8 (0.46%) Public Cloud
18 7 (0.40%) Social Media
Operating Systems
1 128 (7.39%) Linux
2 84 (4.85%) Windows
3 77 (4.45%) Android
4 56 (3.23%) Apple iOS
5 18 (1.04%) Unix
6 17 (0.98%) Windows Server
7 9 (0.52%) CentOS
7 9 (0.52%) Ubuntu
8 5 (0.29%) Mac OS
8 5 (0.29%) Red Hat Enterprise Linux
9 3 (0.17%) Windows 10
9 3 (0.17%) Windows Server 2012
9 3 (0.17%) Windows XP
Processes & Methodologies
1 1,184 (68.36%) Agile Software Development
2 566 (32.68%) BDD
3 439 (25.35%) Scrum
4 417 (24.08%) Software Engineering
5 412 (23.79%) DevOps
6 375 (21.65%) MVC
7 370 (21.36%) Microservices
8 351 (20.27%) Test Automation
9 314 (18.13%) Continuous Integration
10 268 (15.47%) OO
11 217 (12.53%) Mentoring
12 197 (11.37%) Unit Testing
13 174 (10.05%) SOLID
14 142 (8.20%) OOP
15 130 (7.51%) Computer Science
16 121 (6.99%) Problem-Solving
16 121 (6.99%) Web Development
17 115 (6.64%) Fintech
18 114 (6.58%) Front End Development
19 111 (6.41%) Continuous Improvement
Programming Languages
1 826 (47.69%) C#
2 761 (43.94%) JavaScript
3 499 (28.81%) Java
3 499 (28.81%) SQL
4 234 (13.51%) Python
5 161 (9.30%) TypeScript
6 146 (8.43%) PHP
7 141 (8.14%) C++
8 105 (6.06%) Java 8
9 52 (3.00%) C
10 49 (2.83%) T-SQL
11 40 (2.31%) Ruby
12 39 (2.25%) Go
13 38 (2.19%) ES6
14 36 (2.08%) Apple Swift
15 31 (1.79%) PowerShell
15 31 (1.79%) Scala
16 28 (1.62%) Objective-C
17 25 (1.44%) Kotlin
18 23 (1.33%) VB
Qualifications
1 197 (11.37%) Degree
2 127 (7.33%) Security Cleared
3 77 (4.45%) SC Cleared
4 66 (3.81%) Computer Science Degree
5 29 (1.67%) ISTQB
6 17 (0.98%) DV Cleared
7 14 (0.81%) PhD
8 13 (0.75%) ISTQB Foundation Certification
9 11 (0.64%) Microsoft Certification
10 10 (0.58%) ISEB
11 9 (0.52%) MCITP
12 7 (0.40%) Numerate Degree
13 6 (0.35%) ISTQB Advanced Certification
14 3 (0.17%) ISEB Practitioner
15 2 (0.12%) AWS Certification
16 1 (0.058%) BPSS Clearance
16 1 (0.058%) Master's Degree
16 1 (0.058%) OCA
16 1 (0.058%) Oracle Certification
16 1 (0.058%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 112 (6.47%) QA
2 11 (0.64%) Data Quality
3 4 (0.23%) PCI DSS
4 3 (0.17%) WCAG
5 2 (0.12%) NCSC
6 1 (0.058%) Disclosure Scotland
System Software
1 334 (19.28%) Docker
2 28 (1.62%) Active Directory
3 26 (1.50%) VMware Infrastructure
4 18 (1.04%) NDS
4 18 (1.04%) NetIQ eDirectory
5 13 (0.75%) vSphere
6 10 (0.58%) Hyper-V
7 8 (0.46%) KVM
8 2 (0.12%) Postfix
Systems Management
1 190 (10.97%) Kubernetes
2 75 (4.33%) Terraform
3 46 (2.66%) Ansible
4 24 (1.39%) NetIQ Identity Manager
5 15 (0.87%) Opscode Chef
5 15 (0.87%) Tivoli
6 9 (0.52%) Oracle Identity Manager
6 9 (0.52%) Tivoli Identity Manager
7 6 (0.35%) MIIS
8 5 (0.29%) Kibana
8 5 (0.29%) Single Sign-On
9 4 (0.23%) HP Quality Center
9 4 (0.23%) Puppet
10 2 (0.12%) Grafana
10 2 (0.12%) HP Fortify
10 2 (0.12%) Oracle Identity Management
10 2 (0.12%) Prometheus
10 2 (0.12%) vRealize
11 1 (0.058%) vCenter Server
Vendors
1 192 (11.09%) Microsoft
2 58 (3.35%) Oracle
3 52 (3.00%) Google
4 30 (1.73%) Atlassian
5 28 (1.62%) VMware
6 26 (1.50%) NetIQ
7 24 (1.39%) ForgeRock
7 24 (1.39%) SAP
8 20 (1.15%) IBM
9 18 (1.04%) Zend
10 14 (0.81%) Okta
11 13 (0.75%) Xamarin
12 10 (0.58%) CyberArk
13 9 (0.52%) CheckPoint
14 8 (0.46%) Adobe
14 8 (0.46%) Red Hat
14 8 (0.46%) Sitecore
15 7 (0.40%) Novell
15 7 (0.40%) Ping Identity
16 6 (0.35%) ServiceNow