Period
to 23 September 2020

The following table provides summary statistics for contract job vacancies advertised in the South East with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 23 September 2020 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Test-Driven Development (TDD)
England > South East
6 months to
23 Sep 2020
Same period 2019 Same period 2018
Rank 98 48 35
Rank change year-on-year -50 -13 0
Contract jobs citing TDD 65 653 963
As % of all contract jobs advertised in the South East 1.82% 4.56% 5.92%
As % of the Processes & Methodologies category 2.13% 5.24% 6.84%
Number of daily rates quoted 46 402 731
Median daily rate £475 £463 £475
Median daily rate % change year-on-year +2.70% -2.63% +11.76%
10th Percentile £359 £351 £350
90th Percentile £575 £575 £575
England median daily rate £515 £525 £500
% change year-on-year -1.90% +5.00% +5.26%
Number of hourly rates quoted 0 0 12
Median hourly rate - - £43.25
England median hourly rate £35.00 £38.74 £45.00
% change year-on-year -9.64% -13.92% +5.88%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the South East with a requirement for process or methodology skills.

All Process and Methodology Skills
South East
Contract vacancies with a requirement for process or methodology skills 3,058 12,469 14,085
As % of all contract IT jobs advertised in the South East 85.54% 87.13% 86.66%
Number of daily rates quoted 1,809 7,411 8,471
Median daily rate £465 £450 £433
Median daily rate % change year-on-year +3.33% +4.05% +4.22%
10th Percentile £263 £275 £278
90th Percentile £634 £610 £588
England median daily rate £475 £475 £465
% change year-on-year - +2.15% +3.33%
Number of hourly rates quoted 187 477 511
Median hourly rate £31.61 £31.50 £25.01
Median hourly rate % change year-on-year +0.35% +25.97% +19.07%
10th Percentile £12.70 £13.05 £11.18
90th Percentile £57.50 £65.00 £51.00
Median hourly rate £35.00 £25.00 £21.00
% change year-on-year +40.00% +19.05% -10.12%

TDD
Job Vacancy Trend in the South East

Job postings citing TDD as a proportion of all IT jobs advertised in the South East.

Job vacancy trend for TDD in the South East

TDD
Contractor Daily Rate Trend in the South East

3-month moving average daily rate quoted in jobs citing TDD in the South East.

Daily rate trend for TDD in the South East

TDD
Daily Rate Histogram in the South East

Daily rate distribution for jobs citing TDD in the South East over the 6 months to 23 September 2020.

Daily rate histogram for TDD in the South East

TDD
Contractor Hourly Rate Trend in the South East

3-month moving average hourly rates quoted in jobs citing TDD in the South East.

Hourly rate trend for TDD in the South East

TDD
Contract Job Locations in the South East

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the South East region over the 6 months to 23 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Thames Valley -19 21 £475 +5.56% 59
Hampshire -22 21 £425 -10.53% 26
Berkshire +18 16 £475 +5.56% 31
Surrey +1 9 £500 +2.56% 10
West Sussex +2 8 £478 +12.35% 7
Buckinghamshire -8 4 £387 -11.55% 17
Kent -2 2 £685 +44.21% 10
Oxfordshire +15 1 - - 11
East Sussex +8 1 £375 -6.25% 7
Sussex +6 1 £550 -
TDD
England

For the 6 months to 23 September 2020, IT contractor 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 contract job ads across the South East region with a requirement for TDD.

1 49 (75.38%) Agile Software Development
2 31 (47.69%) JavaScript
3 21 (32.31%) .NET
4 20 (30.77%) Git (software)
5 19 (29.23%) C#
6 18 (27.69%) HTML
6 18 (27.69%) CSS
6 18 (27.69%) BDD
6 18 (27.69%) React
7 16 (24.62%) Azure
7 16 (24.62%) AngularJS
7 16 (24.62%) DevOps
8 15 (23.08%) Test Automation
8 15 (23.08%) Java
9 14 (21.54%) Continuous Integration
10 13 (20.00%) Scrum
11 11 (16.92%) SQL
11 11 (16.92%) Unit Testing
11 11 (16.92%) Node.js
11 11 (16.92%) Docker
11 11 (16.92%) .NET Core
12 10 (15.38%) Microservices
13 9 (13.85%) Python
13 9 (13.85%) Jenkins
13 9 (13.85%) RESTful
14 8 (12.31%) Android
14 8 (12.31%) REST
14 8 (12.31%) CSS3
14 8 (12.31%) SQL Server
14 8 (12.31%) Microsoft

TDD
Co-occurring IT Skills in the South East 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 5 (7.69%) Confluence
2 2 (3.08%) Apache
2 2 (3.08%) Apache Spark
2 2 (3.08%) CMS
2 2 (3.08%) SharePoint
3 1 (1.54%) IIS
3 1 (1.54%) OpenWhisk
3 1 (1.54%) Tomcat
Applications
1 1 (1.54%) Chatbot
1 1 (1.54%) Figma
1 1 (1.54%) GIMP
1 1 (1.54%) Microsoft Excel
1 1 (1.54%) Microsoft Office
1 1 (1.54%) Microsoft PowerPoint
1 1 (1.54%) Photoshop
Business Applications
1 3 (4.62%) Dynamics CRM
2 1 (1.54%) Oracle Subledger Accounting
2 1 (1.54%) SAP Hybris
Cloud Services
1 16 (24.62%) Azure
2 7 (10.77%) AWS
3 4 (6.15%) GitHub
3 4 (6.15%) PaaS
4 3 (4.62%) Firebase
5 2 (3.08%) Azure Functions
5 2 (3.08%) Dynamics 365
5 2 (3.08%) IaaS
5 2 (3.08%) Logic Apps
5 2 (3.08%) Serverless
6 1 (1.54%) Amazon SQS
6 1 (1.54%) AWS CloudFormation
6 1 (1.54%) AWS Lambda
6 1 (1.54%) Azure Data Factory
6 1 (1.54%) GCP
6 1 (1.54%) OpenShift
6 1 (1.54%) Power Platform
6 1 (1.54%) SaaS
Communications & Networking
1 2 (3.08%) DSL
2 1 (1.54%) 2G
2 1 (1.54%) 3G
2 1 (1.54%) 4G
2 1 (1.54%) MGW
2 1 (1.54%) RNC
Database & Business Intelligence
1 8 (12.31%) SQL Server
2 5 (7.69%) Big Data
2 5 (7.69%) Relational Database
3 3 (4.62%) PostgreSQL
3 3 (4.62%) SQL Server Integration Services
4 2 (3.08%) Azure SQL Database
4 2 (3.08%) Cosmos DB
4 2 (3.08%) Data Lake
4 2 (3.08%) Hadoop
4 2 (3.08%) Microsoft Analysis Services
4 2 (3.08%) MongoDB
4 2 (3.08%) NoSQL
4 2 (3.08%) RDBMS
4 2 (3.08%) SQL Server 2014
4 2 (3.08%) SQL Server 2016
4 2 (3.08%) SQL Server Reporting Services
5 1 (1.54%) Blockchain
5 1 (1.54%) Oracle Database
5 1 (1.54%) SAP HANA
5 1 (1.54%) SQL Server Analysis Services
Development Applications
1 20 (30.77%) Git (software)
2 9 (13.85%) Jenkins
3 8 (12.31%) Selenium
4 6 (9.23%) JIRA
4 6 (9.23%) JUnit
5 5 (7.69%) Team Foundation Server
6 4 (6.15%) Android Studio
6 4 (6.15%) Cucumber
6 4 (6.15%) git-flow
6 4 (6.15%) Mockito
6 4 (6.15%) Visual Studio
7 3 (4.62%) Bitbucket
7 3 (4.62%) Gradle
7 3 (4.62%) webpack
8 2 (3.08%) Ant
8 2 (3.08%) Cypress.io
8 2 (3.08%) Jasmine
8 2 (3.08%) Maven
8 2 (3.08%) SoapUI
8 2 (3.08%) TeamCity
General
1 8 (12.31%) Finance
2 5 (7.69%) Banking
3 2 (3.08%) Investment Banking
3 2 (3.08%) Legal
3 2 (3.08%) Public Sector
4 1 (1.54%) Advertising
4 1 (1.54%) Financial Institution
4 1 (1.54%) Telecoms
Job Titles
1 53 (81.54%) Developer
2 10 (15.38%) Senior Developer
3 9 (13.85%) Software Developer
4 7 (10.77%) Java Developer
5 6 (9.23%) .NET Developer
5 6 (9.23%) Front End Developer (Client-Side Developer)
6 5 (7.69%) Android Developer
7 4 (6.15%) Scala Developer
8 3 (4.62%) Agile Developer
8 3 (4.62%) C# .NET Developer
8 3 (4.62%) C# Developer
8 3 (4.62%) CRM Developer
8 3 (4.62%) React Developer
8 3 (4.62%) Senior Front-End Developer
8 3 (4.62%) User Researcher
9 2 (3.08%) Angular Developer
9 2 (3.08%) Azure Developer
9 2 (3.08%) Senior .NET Developer
9 2 (3.08%) SQL Developer
9 2 (3.08%) Xamarin Developer
Libraries, Frameworks & Software Standards
1 21 (32.31%) .NET
2 18 (27.69%) CSS
2 18 (27.69%) HTML
2 18 (27.69%) React
3 16 (24.62%) AngularJS
4 11 (16.92%) .NET Core
4 11 (16.92%) Node.js
5 9 (13.85%) RESTful
6 8 (12.31%) CSS3
6 8 (12.31%) REST
7 7 (10.77%) HTML5
7 7 (10.77%) Web Services
8 6 (9.23%) Spring
9 5 (7.69%) ASP.NET
9 5 (7.69%) SOAP
10 4 (6.15%) Ajax
10 4 (6.15%) Material Design
10 4 (6.15%) Redux
10 4 (6.15%) Sass
10 4 (6.15%) WCF
Miscellaneous
1 3 (4.62%) User Experience
2 2 (3.08%) Enterprise Software
2 2 (3.08%) Greenfield Project
2 2 (3.08%) Robotics
3 1 (1.54%) Acoustics
3 1 (1.54%) Client/Server
3 1 (1.54%) Data Centre
3 1 (1.54%) Derivative
3 1 (1.54%) Mobile App
3 1 (1.54%) Public Cloud
Operating Systems
1 8 (12.31%) Android
2 5 (7.69%) Windows
3 3 (4.62%) Apple iOS
4 2 (3.08%) Linux
5 1 (1.54%) Ubuntu
5 1 (1.54%) Windows 10
5 1 (1.54%) Windows Server
Processes & Methodologies
1 49 (75.38%) Agile Software Development
2 18 (27.69%) BDD
3 16 (24.62%) DevOps
4 15 (23.08%) Test Automation
5 14 (21.54%) Continuous Integration
6 13 (20.00%) Scrum
7 11 (16.92%) Unit Testing
8 10 (15.38%) Microservices
9 7 (10.77%) Android Development
9 7 (10.77%) Problem-Solving
10 6 (9.23%) Front End Development
11 5 (7.69%) API Development
11 5 (7.69%) Continuous Delivery
11 5 (7.69%) Continuous Deployment
11 5 (7.69%) CRM
11 5 (7.69%) Software Engineering
12 4 (6.15%) Business Intelligence
12 4 (6.15%) MVC
12 4 (6.15%) Pair Programming
12 4 (6.15%) Web Development
Programming Languages
1 31 (47.69%) JavaScript
2 19 (29.23%) C#
3 15 (23.08%) Java
4 11 (16.92%) SQL
5 9 (13.85%) Python
6 6 (9.23%) Scala
7 5 (7.69%) Java 8
7 5 (7.69%) TypeScript
8 4 (6.15%) Kotlin
9 3 (4.62%) PowerShell
9 3 (4.62%) T-SQL
10 2 (3.08%) Apple Swift
10 2 (3.08%) Go
10 2 (3.08%) Groovy
10 2 (3.08%) Objective-C
10 2 (3.08%) PHP
11 1 (1.54%) Bash Shell
11 1 (1.54%) C
11 1 (1.54%) Ruby
11 1 (1.54%) VB.NET
Qualifications
1 5 (7.69%) Security Cleared
2 4 (6.15%) Degree
2 4 (6.15%) SC Cleared
3 1 (1.54%) Computer Science Degree
3 1 (1.54%) DBS Check
3 1 (1.54%) DV Cleared
3 1 (1.54%) ISEB
3 1 (1.54%) ISTQB
3 1 (1.54%) ISTQB Foundation Certification
3 1 (1.54%) MCITP
3 1 (1.54%) Microsoft Certification
Quality Assurance & Compliance
1 3 (4.62%) QA
2 1 (1.54%) FINREP
System Software
1 11 (16.92%) Docker
Systems Management
1 4 (6.15%) Kubernetes
2 2 (3.08%) Ansible
2 2 (3.08%) Kibana
2 2 (3.08%) Terraform
Vendors
1 8 (12.31%) Microsoft
2 3 (4.62%) Atlassian
2 3 (4.62%) Google
3 2 (3.08%) Databricks
3 2 (3.08%) SAP
3 2 (3.08%) Splunk
3 2 (3.08%) Xamarin
4 1 (1.54%) Capita
4 1 (1.54%) CheckPoint
4 1 (1.54%) hybris
4 1 (1.54%) Oracle