Period
to 17 August 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 17 August 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
17 Aug 2018
Same period 2017 Same period 2016
Rank 14 15 14
Rank change year-on-year +1 -1 +15
Contract jobs citing TDD 436 338 539
As % of all contract IT jobs advertised in Yorkshire 8.81% 7.99% 9.31%
As % of the Processes & Methodologies category 10.09% 9.40% 10.75%
Number of daily rates quoted 310 279 448
Yorkshire median daily rate £425 £425 £450
Median daily rate % change year-on-year - -5.56% +20.00%
10th Percentile £325 £350 £325
90th Percentile £538 £550 £538
England median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 0 0 0
Yorkshire median hourly rate - - -
England median hourly rate £43.75 £41.50 £40.00
% change year-on-year +5.42% +3.75% -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 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 4,323 3,597 5,015
As % of all contract IT jobs advertised in Yorkshire 87.39% 85.02% 86.60%
Number of daily rates quoted 2,909 2,358 3,402
Yorkshire median daily rate £410 £400 £400
Median daily rate % change year-on-year +2.50% - +11.11%
10th Percentile £280 £263 £275
90th Percentile £540 £550 £556
England median daily rate £463 £450 £425
% change year-on-year +2.78% +5.88% +3.66%
Number of hourly rates quoted 122 89 110
Yorkshire median hourly rate £17.51 £14.00 £14.50
Median hourly rate % change year-on-year +25.04% -3.45% +1.75%
10th Percentile £11.17 £8.42 £10.20
90th Percentile £43.25 £38.70 £42.25
England median hourly rate £21.50 £24.00 £23.50
% change year-on-year -10.42% +2.13% +9.05%

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 17 August 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 17 August 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 +3 360 £425 - 81
South Yorkshire -15 53 £425 -5.56% 12
North Yorkshire +10 13 £400 +8.11% 9
East Yorkshire -3 2 £438 +25.00% 2
TDD
England

For the 6 months to 17 August 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.

1 357 (81.88%) Agile Software Development
2 229 (52.52%) Java
3 186 (42.66%) JavaScript
4 171 (39.22%) Microservices
5 142 (32.57%) Git (software)
5 142 (32.57%) BDD
6 124 (28.44%) Continuous Integration
7 119 (27.29%) SQL
8 116 (26.61%) Scrum
9 108 (24.77%) Spring
10 105 (24.08%) Test Automation
11 102 (23.39%) Software Engineering
12 95 (21.79%) Jenkins
13 94 (21.56%) Spring Boot
14 90 (20.64%) .NET
15 85 (19.50%) RESTful
15 85 (19.50%) NoSQL
16 84 (19.27%) C#
17 79 (18.12%) MVC
18 75 (17.20%) Docker
19 73 (16.74%) Amazon AWS
19 73 (16.74%) OO
19 73 (16.74%) Java 8
20 71 (16.28%) Hibernate
21 66 (15.14%) MySQL
22 65 (14.91%) Pair Programming
23 64 (14.68%) ASP.NET
23 64 (14.68%) REST
24 63 (14.45%) Node.js
25 59 (13.53%) SQL Server

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 46 (10.55%) Confluence
2 36 (8.26%) Apache
3 19 (4.36%) nginx
4 17 (3.90%) Apache Spark
5 16 (3.67%) Elasticsearch
6 14 (3.21%) Tomcat
7 9 (2.06%) WebSphere
8 8 (1.83%) Adobe Experience Manager
9 7 (1.61%) CMS
9 7 (1.61%) IIS
9 7 (1.61%) Jetty
9 7 (1.61%) Mongrel
10 6 (1.38%) Sitecore CMS
11 3 (0.69%) JBoss
11 3 (0.69%) Mule
12 2 (0.46%) WebSphere Application Server
13 1 (0.23%) Cloud Foundry
13 1 (0.23%) NServiceBus
13 1 (0.23%) WebLogic
Applications
1 1 (0.23%) Adobe Creative Suite
1 1 (0.23%) MS Visio
Cloud Services
1 73 (16.74%) Amazon AWS
2 33 (7.57%) Microsoft Azure
3 25 (5.73%) Slack
4 21 (4.82%) Amazon EC2
5 13 (2.98%) GitHub
6 8 (1.83%) Google Cloud Platform
6 8 (1.83%) npm
7 7 (1.61%) Google App Engine
8 4 (0.92%) AWS Lambda
8 4 (0.92%) Serverless
9 3 (0.69%) Trello
10 2 (0.46%) Amazon CloudWatch
10 2 (0.46%) Amazon SQS
10 2 (0.46%) BrowserStack
10 2 (0.46%) Cloud Computing
10 2 (0.46%) Datadog
11 1 (0.23%) Google Tag Manager
11 1 (0.23%) OpenShift
11 1 (0.23%) Tricentis Tosca
Communications & Networking
1 8 (1.83%) HTTP
1 8 (1.83%) TCP/IP
2 7 (1.61%) DHCP
2 7 (1.61%) DNS
2 7 (1.61%) FTP
2 7 (1.61%) IPsec
2 7 (1.61%) SSL
3 5 (1.15%) Firewall
4 2 (0.46%) FIX Connectivity
4 2 (0.46%) SMS
5 1 (0.23%) AMQP
5 1 (0.23%) DLNA
5 1 (0.23%) Internet
5 1 (0.23%) SSH
5 1 (0.23%) UPnP
5 1 (0.23%) Wi-Fi
Database & Business Intelligence
1 85 (19.50%) NoSQL
2 66 (15.14%) MySQL
3 59 (13.53%) SQL Server
4 44 (10.09%) PostgreSQL
5 42 (9.63%) MongoDB
6 36 (8.26%) Big Data
7 27 (6.19%) Apache Cassandra
8 17 (3.90%) Hadoop
9 13 (2.98%) Apache Hive
9 13 (2.98%) CouchDB
10 12 (2.75%) SQL Server 2012
11 11 (2.52%) Amazon RDS
11 11 (2.52%) Riak
12 10 (2.29%) Redis
13 8 (1.83%) GIS
14 7 (1.61%) SQL Server 2008
15 6 (1.38%) Couchbase
15 6 (1.38%) Data Warehouse
16 5 (1.15%) Relational Database
17 4 (0.92%) Amazon DynamoDB
Development Applications
1 142 (32.57%) Git (software)
2 95 (21.79%) Jenkins
3 59 (13.53%) JIRA
4 51 (11.70%) Maven
5 36 (8.26%) Cucumber
6 30 (6.88%) JUnit
7 28 (6.42%) Selenium
8 25 (5.73%) Octopus Deploy
9 21 (4.82%) Subversion
10 19 (4.36%) Mercurial
11 18 (4.13%) Visual Studio
11 18 (4.13%) webpack
12 16 (3.67%) Team Foundation Server
13 14 (3.21%) Jasmine
14 13 (2.98%) Mockito
15 12 (2.75%) PHPUnit
15 12 (2.75%) SonarQube
15 12 (2.75%) WebDriver
16 9 (2.06%) TeamCity
16 9 (2.06%) Vagrant
General
1 24 (5.50%) Finance
2 14 (3.21%) Retail
3 4 (0.92%) Publishing
4 3 (0.69%) Banking
5 2 (0.46%) Advertising
5 2 (0.46%) Games
5 2 (0.46%) Telecoms
6 1 (0.23%) Electronics
6 1 (0.23%) Law
6 1 (0.23%) Manufacturing
6 1 (0.23%) Marketing
Job Titles
1 340 (77.98%) Developer
2 149 (34.17%) Java Developer
3 52 (11.93%) .NET Developer
4 49 (11.24%) C# Developer
5 35 (8.03%) C# .NET Developer
6 34 (7.80%) Software Engineer
7 33 (7.57%) Senior Developer
8 31 (7.11%) PHP Developer
8 31 (7.11%) Python Developer
9 29 (6.65%) JavaScript Developer
10 18 (4.13%) Java Engineer
10 18 (4.13%) Senior Java Developer
11 17 (3.90%) ASP.NET Developer
11 17 (3.90%) ASP.NET MVC Developer
11 17 (3.90%) C# ASP.NET Developer
12 16 (3.67%) Node.js Developer
12 16 (3.67%) React Developer
13 14 (3.21%) Agile Developer
13 14 (3.21%) DevOps Engineer
13 14 (3.21%) Java Software Engineer
Libraries, Frameworks & Software Standards
1 108 (24.77%) Spring
2 94 (21.56%) Spring Boot
3 90 (20.64%) .NET
4 85 (19.50%) RESTful
5 71 (16.28%) Hibernate
6 64 (14.68%) ASP.NET
6 64 (14.68%) REST
7 63 (14.45%) Node.js
8 58 (13.30%) ASP.NET MVC
8 58 (13.30%) HTML
9 54 (12.39%) CSS
10 52 (11.93%) ASP.NET Web API
11 44 (10.09%) Web Services
12 37 (8.49%) AngularJS
12 37 (8.49%) Kafka
13 36 (8.26%) React
14 28 (6.42%) .NET Framework
15 26 (5.96%) Entity Framework
15 26 (5.96%) RabbitMQ
16 25 (5.73%) HTML5
Miscellaneous
1 29 (6.65%) Enterprise Software
2 16 (3.67%) Greenfield Project
3 11 (2.52%) NHS
4 7 (1.61%) User Experience
5 3 (0.69%) Foreign Exchange (FX)
5 3 (0.69%) Self-Motivation
6 2 (0.46%) Analytical Skills
6 2 (0.46%) Data Centre
6 2 (0.46%) Digital Media
6 2 (0.46%) Equities
6 2 (0.46%) Management Information System
6 2 (0.46%) Mobile App
6 2 (0.46%) W3C
7 1 (0.23%) Computer Science
7 1 (0.23%) Fintech
7 1 (0.23%) MPEG
7 1 (0.23%) N-Tier
7 1 (0.23%) PKI
7 1 (0.23%) Public Cloud
Operating Systems
1 54 (12.39%) Linux
2 24 (5.50%) Red Hat Enterprise Linux
3 9 (2.06%) VMS
4 7 (1.61%) Unix
5 6 (1.38%) Android
6 4 (0.92%) Apple iOS
6 4 (0.92%) Windows
7 2 (0.46%) Kali Linux
8 1 (0.23%) Embedded Linux
8 1 (0.23%) Mac OS X
Processes & Methodologies
1 357 (81.88%) Agile Software Development
2 171 (39.22%) Microservices
3 142 (32.57%) BDD
4 124 (28.44%) Continuous Integration
5 116 (26.61%) Scrum
6 105 (24.08%) Test Automation
7 102 (23.39%) Software Engineering
8 79 (18.12%) MVC
9 73 (16.74%) OO
10 65 (14.91%) Pair Programming
11 57 (13.07%) Kanban
12 56 (12.84%) Mentoring
13 50 (11.47%) Open Source
14 48 (11.01%) DevOps
15 46 (10.55%) Unit Testing
16 38 (8.72%) SOA
17 34 (7.80%) Coaching
18 24 (5.50%) Deployment Automation
19 23 (5.28%) OOP
20 22 (5.05%) E-Commerce
Programming Languages
1 229 (52.52%) Java
2 186 (42.66%) JavaScript
3 119 (27.29%) SQL
4 84 (19.27%) C#
5 73 (16.74%) Java 8
6 50 (11.47%) Python
7 41 (9.40%) PHP
8 32 (7.34%) Scala
9 15 (3.44%) Groovy
9 15 (3.44%) PHP 7
9 15 (3.44%) T-SQL
10 13 (2.98%) Kotlin
10 13 (2.98%) PowerShell
11 9 (2.06%) C++
12 7 (1.61%) Ruby
13 6 (1.38%) PHP 5
13 6 (1.38%) TypeScript
14 5 (1.15%) C
15 4 (0.92%) Clojure
15 4 (0.92%) ES6
Qualifications
1 20 (4.59%) SC Cleared
1 20 (4.59%) Security Cleared
2 15 (3.44%) BPSS Clearance
3 3 (0.69%) BC Cleared
3 3 (0.69%) Degree
4 2 (0.46%) HND
5 1 (0.23%) ISEB
5 1 (0.23%) ISTQB Foundation Certification
Quality Assurance & Compliance
1 20 (4.59%) QA
2 6 (1.38%) PMO
3 3 (0.69%) Disclosure Scotland
4 2 (0.46%) SLA
5 1 (0.23%) WCAG
System Software
1 75 (17.20%) Docker
2 9 (2.06%) Virtual Machines
2 9 (2.06%) VMware Infrastructure
3 7 (1.61%) Xen
4 4 (0.92%) Apache Flume
5 2 (0.46%) vSphere
Systems Management
1 25 (5.73%) Puppet
2 18 (4.13%) Ansible
3 15 (3.44%) Terraform
4 9 (2.06%) Grafana
4 9 (2.06%) Graylog
5 7 (1.61%) Kubernetes
6 3 (0.69%) Opscode Chef
7 2 (0.46%) Kibana
7 2 (0.46%) Oozie
7 2 (0.46%) Prometheus
8 1 (0.23%) OpenView
8 1 (0.23%) SCOM
8 1 (0.23%) ZABBIX
Vendors
1 38 (8.72%) Microsoft
2 18 (4.13%) Red Hat
3 16 (3.67%) Splunk
4 15 (3.44%) Zend
5 13 (2.98%) Oracle
6 11 (2.52%) Google
6 11 (2.52%) Sitecore
7 10 (2.29%) Coverity
8 9 (2.06%) Adobe
8 9 (2.06%) VMware
9 5 (1.15%) MuleSoft
10 3 (0.69%) Cloudera
10 3 (0.69%) Hortonworks
11 2 (0.46%) Capita
11 2 (0.46%) IBM
12 1 (0.23%) HP
12 1 (0.23%) Tableau
12 1 (0.23%) Twitter
12 1 (0.23%) Xamarin