Period
to 28 May 2020

The following table provides summary statistics for contract job vacancies advertised in Yorkshire 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 28 May 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 > Yorkshire
6 months to
28 May 2020
Same period 2019 Same period 2018
Rank 39 26 10
Rank change year-on-year -13 -16 +6
Contract jobs citing TDD 100 273 493
As % of all contract jobs advertised in Yorkshire 4.71% 6.11% 10.14%
As % of the Processes & Methodologies category 5.60% 7.09% 11.61%
Number of daily rates quoted 89 206 367
Median daily rate £500 £500 £425
Median daily rate % change year-on-year - +17.65% +1.19%
10th Percentile £358 £363 £325
90th Percentile £605 £575 £535
England median daily rate £525 £525 £500
% change year-on-year - +5.00% +7.53%
Number of hourly rates quoted 0 1 0
Median hourly rate - £35.00 -
England median hourly rate £55.00 £35.00 £45.00
% change year-on-year +57.14% -22.22% +9.76%

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 Yorkshire with a requirement for process or methodology skills.

All Process and Methodology Skills
Yorkshire
Contract vacancies with a requirement for process or methodology skills 1,786 3,848 4,248
As % of all contract IT jobs advertised in Yorkshire 84.21% 86.12% 87.35%
Number of daily rates quoted 1,132 2,548 2,816
Median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25% -
10th Percentile £300 £263 £268
90th Percentile £613 £575 £538
England median daily rate £475 £475 £463
% change year-on-year - +2.70% +2.78%
Number of hourly rates quoted 99 128 122
Median hourly rate £18.41 £17.13 £20.99
Median hourly rate % change year-on-year +7.47% -18.41% +55.48%
10th Percentile £11.25 £11.23 £10.75
90th Percentile £35.00 £37.98 £44.35
Median hourly rate £28.00 £24.91 £22.00
% change year-on-year +12.40% +13.23% -13.73%

TDD
Job Vacancy Trend in Yorkshire

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

Job vacancy trend for TDD in Yorkshire

TDD
Contractor Daily Rate Trend in Yorkshire

3-month moving average daily rate quoted in jobs citing TDD in Yorkshire.

Daily rate trend for TDD in Yorkshire

TDD
Daily Rate Histogram in Yorkshire

Daily rate distribution for jobs citing TDD in Yorkshire over the 6 months to 28 May 2020.

Daily rate histogram for TDD in Yorkshire

TDD
Contractor Hourly Rate Trend in Yorkshire

3-month moving average hourly rates quoted in jobs citing TDD in Yorkshire.

Hourly rate trend for TDD in Yorkshire

TDD
Contract Job Locations in Yorkshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Yorkshire region over the 6 months to 28 May 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
West Yorkshire +3 83 £500 +2.04% 33
South Yorkshire -18 11 £450 -10.00% 3
North Yorkshire -1 2 - - 4
TDD
England

For the 6 months to 28 May 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 Yorkshire region with a requirement for TDD.

1 70 (70.00%) Java
2 64 (64.00%) BDD
3 56 (56.00%) AWS
4 54 (54.00%) Agile Software Development
5 42 (42.00%) Docker
6 40 (40.00%) Continuous Deployment
7 34 (34.00%) Security Cleared
8 33 (33.00%) Microservices
8 33 (33.00%) Java 8
9 32 (32.00%) Python
10 31 (31.00%) Continuous Integration
11 30 (30.00%) Git (software)
11 30 (30.00%) Test Automation
11 30 (30.00%) Pair Programming
11 30 (30.00%) Azure
12 28 (28.00%) Kubernetes
13 25 (25.00%) MongoDB
13 25 (25.00%) Node.js
13 25 (25.00%) GitHub
13 25 (25.00%) Linux
14 24 (24.00%) DevOps
15 23 (23.00%) GitLab
15 23 (23.00%) Amazon EC2
15 23 (23.00%) Amazon S3
16 22 (22.00%) SC Cleared
16 22 (22.00%) Bitbucket
17 21 (21.00%) Identity Access Management
17 21 (21.00%) ActiveMQ
17 21 (21.00%) Unix
18 20 (20.00%) Mac OS X

TDD
Co-occurring IT Skills in Yorkshire 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 2 (2.00%) Apache Spark
1 2 (2.00%) CMS
1 2 (2.00%) Elasticsearch
2 1 (1.00%) Adobe Experience Manager
2 1 (1.00%) Confluence
Applications
1 5 (5.00%) Microsoft Excel
Cloud Services
1 56 (56.00%) AWS
2 30 (30.00%) Azure
3 25 (25.00%) GitHub
4 23 (23.00%) Amazon EC2
4 23 (23.00%) Amazon S3
5 14 (14.00%) Amazon CloudWatch
6 13 (13.00%) Serverless
7 10 (10.00%) Amazon Cognito
7 10 (10.00%) Amazon EMR
7 10 (10.00%) AWS Lambda
8 3 (3.00%) Cloudflare
9 2 (2.00%) Google Play
10 1 (1.00%) Power Platform
10 1 (1.00%) Sauce Labs
Communications & Networking
1 1 (1.00%) DSL
1 1 (1.00%) NFC
1 1 (1.00%) Skype
Database & Business Intelligence
1 25 (25.00%) MongoDB
2 10 (10.00%) Big Data
3 7 (7.00%) SQL Server
4 5 (5.00%) Electronic Patient Records
4 5 (5.00%) SQL Server Integration Services
4 5 (5.00%) SQL Server Reporting Services
5 4 (4.00%) Data Warehouse
5 4 (4.00%) SQL Server 2016
6 3 (3.00%) NoSQL
7 2 (2.00%) Apache Hive
7 2 (2.00%) Hadoop
8 1 (1.00%) Azure SQL Database
8 1 (1.00%) CouchDB
8 1 (1.00%) Data Lake
8 1 (1.00%) HBase
8 1 (1.00%) Power BI
8 1 (1.00%) Redis
8 1 (1.00%) Relational Database
8 1 (1.00%) SQL Server 2019
Development Applications
1 30 (30.00%) Git (software)
2 23 (23.00%) GitLab
3 22 (22.00%) Bitbucket
4 18 (18.00%) Mockito
5 5 (5.00%) Jenkins
6 4 (4.00%) Selenium
7 3 (3.00%) CircleCI
7 3 (3.00%) Cucumber
7 3 (3.00%) JIRA
8 2 (2.00%) SpecFlow
8 2 (2.00%) TeamCity
8 2 (2.00%) WebDriver
9 1 (1.00%) Cypress.io
9 1 (1.00%) HP UFT
9 1 (1.00%) JMeter
9 1 (1.00%) Sahi
9 1 (1.00%) Subversion
9 1 (1.00%) Team Foundation Server
9 1 (1.00%) WATIR
9 1 (1.00%) Xcode
General
1 20 (20.00%) Public Sector
2 5 (5.00%) Banking
3 3 (3.00%) Finance
4 2 (2.00%) Publishing
4 2 (2.00%) Telecoms
5 1 (1.00%) Advertising
5 1 (1.00%) Electronics
5 1 (1.00%) Games
5 1 (1.00%) Manufacturing
5 1 (1.00%) Marketing
5 1 (1.00%) Retail
Job Titles
1 65 (65.00%) Developer
2 38 (38.00%) Java Developer
3 12 (12.00%) Architect
4 11 (11.00%) DevOps Engineer
4 11 (11.00%) Technical Architect
5 7 (7.00%) Senior Architect
6 6 (6.00%) Senior Technical Architect
7 5 (5.00%) .NET Developer
7 5 (5.00%) Python Developer
8 4 (4.00%) JavaScript Developer
9 3 (3.00%) Android Developer
9 3 (3.00%) AWS Developer
9 3 (3.00%) Node.js Developer
9 3 (3.00%) Senior DevOps
9 3 (3.00%) Senior DevOps Engineer
10 2 (2.00%) AWS Architect
10 2 (2.00%) AWS DevOps
10 2 (2.00%) AWS DevOps Engineer
10 2 (2.00%) AWS Engineer
10 2 (2.00%) Digital Developer
Libraries, Frameworks & Software Standards
1 25 (25.00%) Node.js
2 21 (21.00%) ActiveMQ
3 19 (19.00%) JAX-RS
4 17 (17.00%) Kafka
5 10 (10.00%) JSON
5 10 (10.00%) PySpark
6 9 (9.00%) .NET
6 9 (9.00%) Spring
6 9 (9.00%) Spring Boot
7 8 (8.00%) AngularJS
7 8 (8.00%) React
8 5 (5.00%) GraphQL
9 4 (4.00%) CSS
9 4 (4.00%) CSS3
9 4 (4.00%) HTML
9 4 (4.00%) HTML5
9 4 (4.00%) Web Services
10 3 (3.00%) jQuery
10 3 (3.00%) RabbitMQ
10 3 (3.00%) REST
Miscellaneous
1 10 (10.00%) Greenfield Project
2 9 (9.00%) Data Structures
3 4 (4.00%) User Experience
4 3 (3.00%) Cloud Native
4 3 (3.00%) Enterprise Software
5 2 (2.00%) Mobile App
6 1 (1.00%) Analytical Skills
6 1 (1.00%) Virtual Team
Operating Systems
1 25 (25.00%) Linux
2 21 (21.00%) Unix
3 20 (20.00%) Mac OS X
4 5 (5.00%) Android
5 4 (4.00%) Apple iOS
6 1 (1.00%) Mac OS
Processes & Methodologies
1 64 (64.00%) BDD
2 54 (54.00%) Agile Software Development
3 40 (40.00%) Continuous Deployment
4 33 (33.00%) Microservices
5 31 (31.00%) Continuous Integration
6 30 (30.00%) Pair Programming
6 30 (30.00%) Test Automation
7 24 (24.00%) DevOps
8 21 (21.00%) Identity Access Management
9 17 (17.00%) Web Design
10 16 (16.00%) Architectural Design
10 16 (16.00%) Responsive Web Design
11 15 (15.00%) Web Development
12 14 (14.00%) Infrastructure as Code
12 14 (14.00%) Problem-Solving
13 10 (10.00%) MapReduce
13 10 (10.00%) Technical Architecture
14 9 (9.00%) Data Ingestion
14 9 (9.00%) Data Science
15 8 (8.00%) Translating Business Requirements
Programming Languages
1 70 (70.00%) Java
2 33 (33.00%) Java 8
3 32 (32.00%) Python
4 19 (19.00%) JavaScript
5 17 (17.00%) SQL
6 16 (16.00%) Go
7 11 (11.00%) C#
8 5 (5.00%) PowerShell
8 5 (5.00%) VBA
9 3 (3.00%) Kotlin
9 3 (3.00%) Ruby
9 3 (3.00%) TypeScript
10 2 (2.00%) Apple Swift
10 2 (2.00%) Objective-C
10 2 (2.00%) Scala
11 1 (1.00%) C
11 1 (1.00%) ES6
11 1 (1.00%) Groovy
11 1 (1.00%) PHP
Qualifications
1 34 (34.00%) Security Cleared
2 22 (22.00%) SC Cleared
3 7 (7.00%) DV Cleared
4 6 (6.00%) BPSS Clearance
5 5 (5.00%) DBS Check
6 2 (2.00%) Degree
Quality Assurance & Compliance
1 2 (2.00%) QA
2 1 (1.00%) Data Quality
System Software
1 42 (42.00%) Docker
Systems Management
1 28 (28.00%) Kubernetes
2 14 (14.00%) Terraform
3 2 (2.00%) Kibana
3 2 (2.00%) Opscode Chef
4 1 (1.00%) Ansible
4 1 (1.00%) HockeyApp
4 1 (1.00%) logstash
4 1 (1.00%) Oozie
4 1 (1.00%) Puppet
Vendors
1 2 (2.00%) Google
2 1 (1.00%) Adobe
2 1 (1.00%) CA Agile Central
2 1 (1.00%) Facebook
2 1 (1.00%) Microsoft
2 1 (1.00%) Oracle
2 1 (1.00%) RedGate
2 1 (1.00%) SAP
2 1 (1.00%) Splunk
2 1 (1.00%) Tableau
2 1 (1.00%) Xamarin
2 1 (1.00%) YouTube