Period
to 20 February 2018

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 20 February 2018 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
20 Feb 2018
Same period 2017 Same period 2016
Rank 15 20 24
Rank change year-on-year +5 +4 +21
Contract jobs citing TDD 385 308 385
As % of all contract IT jobs advertised in Yorkshire 8.32% 6.65% 6.53%
As % of the Processes & Methodologies category 9.91% 8.00% 7.82%
Number of daily rates quoted 303 229 312
Yorkshire median daily rate £425 £425 £400
Median daily rate % change year-on-year - +6.25% +6.67%
10th Percentile £325 £323 £276
90th Percentile £525 £550 £525
England median daily rate £500 £463 £450
% change year-on-year +8.11% +2.78% +5.88%
Number of hourly rates quoted 0 0 3
Yorkshire median hourly rate - - £40.00
England median hourly rate £45.00 £42.50 £40.00
% change year-on-year +5.88% +6.25% +8.84%

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 3,885 3,848 4,925
As % of all contract IT jobs advertised in Yorkshire 83.95% 83.04% 83.50%
Number of daily rates quoted 2,548 2,492 3,286
Yorkshire median daily rate £400 £400 £395
Median daily rate % change year-on-year - +1.27% +8.97%
10th Percentile £263 £259 £263
90th Percentile £538 £550 £563
England median daily rate £450 £438 £425
% change year-on-year +2.86% +2.94% +4.29%
Number of hourly rates quoted 116 116 166
Yorkshire median hourly rate £19.03 £14.87 £14.75
Median hourly rate % change year-on-year +28.02% +0.78% -6.20%
10th Percentile £10.63 £10.44 £9.99
90th Percentile £41.50 £32.00 £28.69
England median hourly rate £24.09 £25.00 £23.50
% change year-on-year -3.64% +6.38% +17.50%

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 20 February 2018.

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 20 February 2018. 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 +11 306 £425 +3.03% 79
South Yorkshire -2 72 £425 -5.56% 10
North Yorkshire +8 10 £406 +35.42% 14
TDD
England

For the 6 months to 20 February 2018, 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.

1 341 (88.57%) Agile Software Development
2 233 (60.52%) Java
3 197 (51.17%) BDD
4 188 (48.83%) JavaScript
5 146 (37.92%) Scrum
6 142 (36.88%) Microservices
7 139 (36.10%) Git (software)
8 125 (32.47%) Spring
9 123 (31.95%) Test Automation
10 115 (29.87%) SQL
11 113 (29.35%) Software Engineering
12 95 (24.68%) Jenkins
13 88 (22.86%) HTML
14 81 (21.04%) Hibernate
15 80 (20.78%) NoSQL
16 79 (20.52%) .NET
17 78 (20.26%) CSS
17 78 (20.26%) Kanban
17 78 (20.26%) Node.js
18 76 (19.74%) Open Source
19 75 (19.48%) Spring Boot
20 73 (18.96%) C#
21 70 (18.18%) RESTful
22 68 (17.66%) AngularJS
23 67 (17.40%) SQL Server
24 65 (16.88%) MongoDB
25 64 (16.62%) MySQL
25 64 (16.62%) MVC
25 64 (16.62%) Continuous Integration
25 64 (16.62%) JIRA

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 56 (14.55%) Confluence
2 18 (4.68%) CMS
3 14 (3.64%) Elasticsearch
4 13 (3.38%) Sitecore CMS
5 7 (1.82%) Apache
5 7 (1.82%) Apache Solr
5 7 (1.82%) JBoss
5 7 (1.82%) Tomcat
5 7 (1.82%) WebLogic
6 4 (1.04%) Cloud Foundry
6 4 (1.04%) Jetty
6 4 (1.04%) Tornado
7 3 (0.78%) nginx
7 3 (0.78%) Oracle SOA Suite
7 3 (0.78%) WebSphere
8 2 (0.52%) WordPress
9 1 (0.26%) Adobe Experience Manager
9 1 (0.26%) Apache Spark
9 1 (0.26%) Drupal
9 1 (0.26%) IIS
Applications
1 3 (0.78%) MS Visio
Cloud Services
1 42 (10.91%) Amazon AWS
2 34 (8.83%) Slack
3 21 (5.45%) Microsoft Azure
4 12 (3.12%) GitHub
5 6 (1.56%) Amazon CloudWatch
5 6 (1.56%) Google Cloud Platform
5 6 (1.56%) PaaS
6 5 (1.30%) IaaS
7 4 (1.04%) CloudBees
7 4 (1.04%) OpenShift
8 3 (0.78%) AWS CloudFormation
9 2 (0.52%) Amazon SQS
9 2 (0.52%) SmartFocus
10 1 (0.26%) Amazon EC2
10 1 (0.26%) Amazon S3
Communications & Networking
1 5 (1.30%) AMQP
2 2 (0.52%) HTTP
3 1 (0.26%) Internet
Database & Business Intelligence
1 80 (20.78%) NoSQL
2 67 (17.40%) SQL Server
3 65 (16.88%) MongoDB
4 64 (16.62%) MySQL
5 51 (13.25%) PostgreSQL
6 39 (10.13%) Apache Cassandra
7 17 (4.42%) SQL Server 2008
7 17 (4.42%) SQL Server 2012
8 14 (3.64%) Big Data
9 7 (1.82%) Redis
9 7 (1.82%) Riak
10 6 (1.56%) Apache Hive
10 6 (1.56%) Hadoop
11 5 (1.30%) Relational Database
12 4 (1.04%) Couchbase
12 4 (1.04%) Oracle Database
13 3 (0.78%) Adabas
14 2 (0.52%) QlikView
14 2 (0.52%) RDBMS
15 1 (0.26%) Data Warehouse
Development Applications
1 139 (36.10%) Git (software)
2 95 (24.68%) Jenkins
3 64 (16.62%) JIRA
4 59 (15.32%) Cucumber
5 52 (13.51%) Maven
6 42 (10.91%) JUnit
7 31 (8.05%) Jasmine
7 31 (8.05%) Selenium
8 23 (5.97%) Octopus Deploy
9 22 (5.71%) Subversion
10 21 (5.45%) Mercurial
11 16 (4.16%) Team Foundation Server
12 15 (3.90%) WebDriver
13 12 (3.12%) Bitbucket
14 11 (2.86%) TeamCity
15 8 (2.08%) AppVeyor
15 8 (2.08%) CircleCI
15 8 (2.08%) Gradle
15 8 (2.08%) Karma Test Runner
16 7 (1.82%) Capybara
General
1 17 (4.42%) Finance
2 10 (2.60%) Banking
3 7 (1.82%) Retail Banking
4 6 (1.56%) Games
5 4 (1.04%) Retail
6 3 (0.78%) Marketing
6 3 (0.78%) Telecoms
7 2 (0.52%) Billing
8 1 (0.26%) Electronics
8 1 (0.26%) Law
8 1 (0.26%) Manufacturing
Job Titles
1 282 (73.25%) Developer
2 136 (35.32%) Java Developer
3 60 (15.58%) .NET Developer
4 55 (14.29%) Software Engineer
5 39 (10.13%) Java Engineer
5 39 (10.13%) Senior Developer
6 35 (9.09%) Java Software Engineer
7 33 (8.57%) C# Developer
8 29 (7.53%) C# .NET Developer
9 27 (7.01%) Full Stack Developer
10 24 (6.23%) JavaScript Developer
11 23 (5.97%) Agile Developer
12 22 (5.71%) Scala Developer
12 22 (5.71%) Senior Java Developer
13 19 (4.94%) Agile Java Developer
14 18 (4.68%) Architect
15 17 (4.42%) Java Software Developer
16 15 (3.90%) Automation Tester
16 15 (3.90%) Node.js Developer
16 15 (3.90%) Tester
Libraries, Frameworks & Software Standards
1 125 (32.47%) Spring
2 88 (22.86%) HTML
3 81 (21.04%) Hibernate
4 79 (20.52%) .NET
5 78 (20.26%) CSS
5 78 (20.26%) Node.js
6 75 (19.48%) Spring Boot
7 70 (18.18%) RESTful
8 68 (17.66%) AngularJS
9 60 (15.58%) REST
10 57 (14.81%) ASP.NET
11 46 (11.95%) ASP.NET MVC
12 45 (11.69%) ASP.NET Web API
13 42 (10.91%) CSS3
14 41 (10.65%) HTML5
15 38 (9.87%) .NET Framework
15 38 (9.87%) Web Services
16 34 (8.83%) React
16 34 (8.83%) XML
17 33 (8.57%) jQuery
Miscellaneous
1 29 (7.53%) Enterprise Software
2 28 (7.27%) User Experience
3 27 (7.01%) Analytical Skills
4 12 (3.12%) Mobile App
5 9 (2.34%) Greenfield Project
6 5 (1.30%) Algorithms
6 5 (1.30%) Computer Science
6 5 (1.30%) Data Structures
7 3 (0.78%) Cloud Native
7 3 (0.78%) Management Information System
7 3 (0.78%) NHS
8 2 (0.52%) Virtual Team
9 1 (0.26%) Chromecast
9 1 (0.26%) IPTV
9 1 (0.26%) Mainframe
9 1 (0.26%) PlayStation
9 1 (0.26%) Smart Meter
9 1 (0.26%) Smartphone
Operating Systems
1 53 (13.77%) Linux
2 32 (8.31%) Red Hat Enterprise Linux
3 16 (4.16%) Android
3 16 (4.16%) Apple iOS
3 16 (4.16%) Unix
4 15 (3.90%) Mac OS X
5 3 (0.78%) Windows
Processes & Methodologies
1 341 (88.57%) Agile Software Development
2 197 (51.17%) BDD
3 146 (37.92%) Scrum
4 142 (36.88%) Microservices
5 123 (31.95%) Test Automation
6 113 (29.35%) Software Engineering
7 78 (20.26%) Kanban
8 76 (19.74%) Open Source
9 64 (16.62%) Continuous Integration
9 64 (16.62%) MVC
10 61 (15.84%) OO
11 51 (13.25%) DevOps
12 46 (11.95%) Pair Programming
13 42 (10.91%) Mentoring
14 39 (10.13%) SOA
15 37 (9.61%) SFIA
16 35 (9.09%) Unit Testing
17 33 (8.57%) Continuous Delivery
18 32 (8.31%) OOP
18 32 (8.31%) Web Development
Programming Languages
1 233 (60.52%) Java
2 188 (48.83%) JavaScript
3 115 (29.87%) SQL
4 73 (18.96%) C#
5 40 (10.39%) Python
6 32 (8.31%) Ruby
6 32 (8.31%) Scala
7 23 (5.97%) PHP
8 21 (5.45%) T-SQL
9 7 (1.82%) Bash Shell
10 6 (1.56%) PHP 5
11 5 (1.30%) ES6
11 5 (1.30%) Kotlin
12 4 (1.04%) Objective-C
12 4 (1.04%) PHP 7
12 4 (1.04%) TypeScript
13 3 (0.78%) C++
14 2 (0.52%) Go
14 2 (0.52%) Groovy
14 2 (0.52%) NATURAL
Qualifications
1 8 (2.08%) Degree
2 7 (1.82%) BPSS Clearance
3 2 (0.52%) PMI Certification
3 2 (0.52%) PMP
4 1 (0.26%) BC Cleared
4 1 (0.26%) ISEB
4 1 (0.26%) ISTQB
4 1 (0.26%) ISTQB Foundation Certification
4 1 (0.26%) Security Cleared
Quality Assurance & Compliance
1 13 (3.38%) QA
2 6 (1.56%) GCP
3 2 (0.52%) GDPR
3 2 (0.52%) ISO/IEC 27001
4 1 (0.26%) PMO
4 1 (0.26%) PSD2
4 1 (0.26%) WCAG
System Software
1 36 (9.35%) Docker
2 3 (0.78%) Virtual Machines
Systems Management
1 16 (4.16%) Puppet
2 12 (3.12%) Grafana
3 8 (2.08%) Ansible
3 8 (2.08%) Terraform
4 6 (1.56%) Graylog
4 6 (1.56%) Opscode Chef
4 6 (1.56%) Prometheus
Vendors
1 28 (7.27%) Oracle
2 27 (7.01%) Red Hat
3 23 (5.97%) Microsoft
4 13 (3.38%) Sitecore
5 11 (2.86%) Xamarin
6 10 (2.60%) Splunk
7 6 (1.56%) Atlassian
8 4 (1.04%) MuleSoft
9 3 (0.78%) Capita
10 2 (0.52%) hybris
10 2 (0.52%) Tableau
10 2 (0.52%) Telerik
10 2 (0.52%) Zend
11 1 (0.26%) Adobe
11 1 (0.26%) SAP
11 1 (0.26%) ServiceNow