Period
to 22 September 2019

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 22 September 2019 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
22 Sep 2019
Same period 2018 Same period 2017
Rank 44 15 19
Rank change year-on-year -29 +4 -5
Contract jobs citing TDD 178 431 311
As % of all contract IT jobs advertised in Yorkshire 4.52% 8.69% 7.45%
As % of the Processes & Methodologies category 5.26% 9.89% 8.63%
Number of daily rates quoted 140 305 266
Yorkshire median daily rate £488 £425 £425
Median daily rate % change year-on-year +14.71% - -3.41%
10th Percentile £349 £325 £350
90th Percentile £588 £538 £538
England median daily rate £525 £500 £475
% change year-on-year +5.00% +5.26% +5.56%
Number of hourly rates quoted 0 0 0
Yorkshire median hourly rate - - -
England median hourly rate £38.74 £45.00 £42.50
% change year-on-year -13.92% +5.88% +6.25%

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 3,382 4,356 3,603
As % of all contract IT jobs advertised in Yorkshire 85.86% 87.82% 86.36%
Number of daily rates quoted 2,228 2,919 2,368
Yorkshire median daily rate £425 £413 £400
Median daily rate % change year-on-year +3.03% +3.13% -
10th Percentile £263 £282 £263
90th Percentile £569 £550 £547
England median daily rate £475 £465 £450
% change year-on-year +2.15% +3.33% +5.88%
Number of hourly rates quoted 145 117 97
Yorkshire median hourly rate £16.25 £17.41 £14.50
Median hourly rate % change year-on-year -6.66% +20.07% -1.69%
10th Percentile £11.17 £10.75 £8.90
90th Percentile £35.90 £41.50 £31.48
England median hourly rate £24.68 £20.50 £23.07
% change year-on-year +20.38% -11.14% +1.01%

TDD
Job Vacancy Trend in Yorkshire

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

Job vacancy trend for TDD in Yorkshire

TDD
Contractor Daily Rate Trend in Yorkshire

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in Yorkshire.

Contractor daily rate trend for TDD in Yorkshire

TDD
Contractor Daily Rate Histogram in Yorkshire

The daily rate distribution of IT jobs citing TDD in Yorkshire over the 6 months to 22 September 2019.

Contractor daily rate histogram for TDD in Yorkshire

TDD
Contractor Hourly Rate Trend in Yorkshire

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in Yorkshire.

Contractor 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 22 September 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
West Yorkshire -23 128 £493 +15.88% 64
South Yorkshire -21 40 £425 +1.19% 14
North Yorkshire -2 6 £339 -15.38% 6
East Yorkshire +1 1 - - 3
TDD
England

For the 6 months to 22 September 2019, 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.

1 139 (78.09%) Agile Software Development
2 104 (58.43%) Java
3 76 (42.70%) Test Automation
3 76 (42.70%) Microservices
4 69 (38.76%) BDD
5 56 (31.46%) Java 8
6 54 (30.34%) Docker
7 51 (28.65%) Azure
7 51 (28.65%) AWS
8 50 (28.09%) JavaScript
9 46 (25.84%) DevOps
10 42 (23.60%) Pair Programming
10 42 (23.60%) MongoDB
11 40 (22.47%) Linux
12 39 (21.91%) Git (software)
13 38 (21.35%) Mockito
13 38 (21.35%) Jenkins
14 35 (19.66%) Unix
14 35 (19.66%) Kubernetes
15 34 (19.10%) Web Development
16 33 (18.54%) Web Design
16 33 (18.54%) Responsive Web Design
17 32 (17.98%) Mac OS X
18 31 (17.42%) Continuous Deployment
19 30 (16.85%) CSS
20 29 (16.29%) Cucumber
21 28 (15.73%) HTML
21 28 (15.73%) Spring
21 28 (15.73%) Problem-Solving
22 27 (15.17%) Spring Boot

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 13 (7.30%) Confluence
2 6 (3.37%) Apache Spark
3 4 (2.25%) Elasticsearch
3 4 (2.25%) OpenEdge
4 3 (1.69%) JBoss
4 3 (1.69%) Jetty
4 3 (1.69%) Tomcat
5 2 (1.12%) Apache
5 2 (1.12%) CMS
6 1 (0.56%) Apache Solr
6 1 (0.56%) nginx
6 1 (0.56%) Sitecore CMS
6 1 (0.56%) WebLogic
Applications
1 2 (1.12%) Microsoft Office
Business Applications
1 1 (0.56%) Magento
Cloud Services
1 51 (28.65%) AWS
1 51 (28.65%) Azure
2 14 (7.87%) GitHub
3 5 (2.81%) Amazon EC2
3 5 (2.81%) BrowserStack
4 4 (2.25%) GCP
5 3 (1.69%) Amazon S3
6 2 (1.12%) Amazon ECS
6 2 (1.12%) Amazon EMR
6 2 (1.12%) Amazon SQS
6 2 (1.12%) AWS Lambda
6 2 (1.12%) Google App Engine
6 2 (1.12%) Google Compute Engine
6 2 (1.12%) Serverless
7 1 (0.56%) Amazon CloudWatch
7 1 (0.56%) Datadog
7 1 (0.56%) npm
7 1 (0.56%) PaaS
7 1 (0.56%) Virtual Private Cloud
Communications & Networking
1 2 (1.12%) DSL
2 1 (0.56%) HTTP
Database & Business Intelligence
1 42 (23.60%) MongoDB
2 23 (12.92%) NoSQL
3 13 (7.30%) Neo4j
4 12 (6.74%) Hadoop
5 9 (5.06%) Big Data
6 8 (4.49%) SQL Server
7 6 (3.37%) Apache Hive
7 6 (3.37%) Relational Database
8 4 (2.25%) HBase
8 4 (2.25%) MySQL
9 3 (1.69%) PostgreSQL
10 2 (1.12%) Amazon DynamoDB
10 2 (1.12%) Amazon RDS
10 2 (1.12%) Apache Cassandra
10 2 (1.12%) BigQuery
10 2 (1.12%) Data Warehouse
10 2 (1.12%) RDBMS
10 2 (1.12%) Riak
11 1 (0.56%) Redis
11 1 (0.56%) SQL Server 2014
Development Applications
1 39 (21.91%) Git (software)
2 38 (21.35%) Jenkins
2 38 (21.35%) Mockito
3 29 (16.29%) Cucumber
4 22 (12.36%) Selenium
5 16 (8.99%) JIRA
6 15 (8.43%) Maven
7 13 (7.30%) Jasmine
8 11 (6.18%) Protractor
8 11 (6.18%) WebDriver
9 10 (5.62%) Visual Studio Team System
10 9 (5.06%) JMeter
11 8 (4.49%) Bitbucket
11 8 (4.49%) Subversion
12 7 (3.93%) Appium
12 7 (3.93%) gulp
12 7 (3.93%) JBehave
12 7 (3.93%) JUnit
12 7 (3.93%) Mocha
13 6 (3.37%) FitNesse
General
1 20 (11.24%) Public Sector
2 6 (3.37%) Finance
3 3 (1.69%) Publishing
4 2 (1.12%) Banking
4 2 (1.12%) Retail
5 1 (0.56%) Legal
5 1 (0.56%) Local Government
Job Titles
1 147 (82.58%) Developer
2 83 (46.63%) Java Developer
3 25 (14.04%) Senior Developer
4 23 (12.92%) Senior Java Developer
5 13 (7.30%) Front End Developer (Client-Side Developer)
6 11 (6.18%) AWS Developer
7 10 (5.62%) JavaScript Developer
7 10 (5.62%) Scala Developer
7 10 (5.62%) Test Engineer
8 8 (4.49%) Software Developer
9 7 (3.93%) .NET Developer
9 7 (3.93%) Test Automation Engineer
10 6 (3.37%) Agile Developer
10 6 (3.37%) Agile Java Developer
10 6 (3.37%) DevOps Engineer
10 6 (3.37%) Ruby Developer
10 6 (3.37%) Tester
11 5 (2.81%) Lead Developer
11 5 (2.81%) PHP Developer
11 5 (2.81%) Ruby Engineer
Libraries, Frameworks & Software Standards
1 30 (16.85%) CSS
2 28 (15.73%) HTML
2 28 (15.73%) Spring
3 27 (15.17%) Spring Boot
4 25 (14.04%) ActiveMQ
4 25 (14.04%) JAX-RS
5 24 (13.48%) AngularJS
5 24 (13.48%) Node.js
6 22 (12.36%) HTML5
7 21 (11.80%) RESTful
8 19 (10.67%) RabbitMQ
9 17 (9.55%) REST
10 15 (8.43%) Kafka
10 15 (8.43%) React
11 12 (6.74%) .NET
11 12 (6.74%) Sass
12 10 (5.62%) CSS3
13 9 (5.06%) SOAP
14 8 (4.49%) Hibernate
14 8 (4.49%) jQuery
Miscellaneous
1 12 (6.74%) Greenfield Project
2 7 (3.93%) User Experience
3 4 (2.25%) Enterprise Software
4 2 (1.12%) Blog
4 2 (1.12%) Virtual Team
5 1 (0.56%) Algorithms
5 1 (0.56%) Analytical Skills
5 1 (0.56%) Data Structures
5 1 (0.56%) Mobile App
Operating Systems
1 40 (22.47%) Linux
2 35 (19.66%) Unix
3 32 (17.98%) Mac OS X
4 8 (4.49%) Windows
5 7 (3.93%) Android
6 6 (3.37%) Apple iOS
7 5 (2.81%) Mac OS
8 1 (0.56%) Windows Server 2008
Processes & Methodologies
1 139 (78.09%) Agile Software Development
2 76 (42.70%) Microservices
2 76 (42.70%) Test Automation
3 69 (38.76%) BDD
4 46 (25.84%) DevOps
5 42 (23.60%) Pair Programming
6 34 (19.10%) Web Development
7 33 (18.54%) Responsive Web Design
7 33 (18.54%) Web Design
8 31 (17.42%) Continuous Deployment
9 28 (15.73%) Problem-Solving
10 27 (15.17%) Scrum
11 21 (11.80%) Kanban
12 19 (10.67%) Continuous Integration
13 16 (8.99%) Software Engineering
14 15 (8.43%) API Testing
15 14 (7.87%) Front End Development
16 11 (6.18%) OO
16 11 (6.18%) OOP
16 11 (6.18%) Software Testing
Programming Languages
1 104 (58.43%) Java
2 56 (31.46%) Java 8
3 50 (28.09%) JavaScript
4 25 (14.04%) SQL
5 20 (11.24%) C#
6 13 (7.30%) Ruby
6 13 (7.30%) Scala
7 11 (6.18%) Python
8 6 (3.37%) PHP
9 5 (2.81%) Groovy
10 4 (2.25%) Kotlin
10 4 (2.25%) PowerShell
10 4 (2.25%) TypeScript
10 4 (2.25%) VB
11 3 (1.69%) Bash Shell
11 3 (1.69%) C
11 3 (1.69%) ES6
11 3 (1.69%) Shell Script
12 2 (1.12%) Apple Swift
12 2 (1.12%) T-SQL
Qualifications
1 19 (10.67%) SC Cleared
1 19 (10.67%) Security Cleared
2 11 (6.18%) BPSS Clearance
3 5 (2.81%) Degree
4 1 (0.56%) DBS Check
Quality Assurance & Compliance
1 15 (8.43%) QA
2 4 (2.25%) WCAG
3 2 (1.12%) Disclosure Scotland
System Software
1 54 (30.34%) Docker
Systems Management
1 35 (19.66%) Kubernetes
2 12 (6.74%) Ansible
3 9 (5.06%) Opscode Chef
4 6 (3.37%) Terraform
5 3 (1.69%) Cobbler
5 3 (1.69%) Puppet
6 2 (1.12%) Kibana
6 2 (1.12%) Oozie
7 1 (0.56%) Consul
7 1 (0.56%) Istio
7 1 (0.56%) SCCM
7 1 (0.56%) SCOM
Vendors
1 12 (6.74%) Microsoft
2 6 (3.37%) Splunk
3 3 (1.69%) Google
4 2 (1.12%) MapR
4 2 (1.12%) Oracle
5 1 (0.56%) AppDynamics
5 1 (0.56%) IBM
5 1 (0.56%) Perforce
5 1 (0.56%) Sitecore
5 1 (0.56%) Spotify