Period
to 23 October 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 23 October 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
23 Oct 2018
Same period 2017 Same period 2016
Rank 18 18 16
Rank change year-on-year 0 -2 +8
Contract jobs citing TDD 389 325 469
As % of all contract IT jobs advertised in Yorkshire 7.89% 7.58% 8.45%
As % of the Processes & Methodologies category 9.11% 8.95% 9.86%
Number of daily rates quoted 274 277 396
Yorkshire median daily rate £425 £425 £433
Median daily rate % change year-on-year - -1.73% +15.33%
10th Percentile £323 £350 £315
90th Percentile £538 £538 £550
England median daily rate £500 £488 £450
% change year-on-year +2.56% +8.33% +5.88%
Number of hourly rates quoted 0 0 0
Yorkshire median hourly rate - - -
England median hourly rate £41.50 £45.00 £42.50
% change year-on-year -7.78% +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 4,272 3,633 4,759
As % of all contract IT jobs advertised in Yorkshire 86.69% 84.76% 85.78%
Number of daily rates quoted 2,889 2,410 3,114
Yorkshire median daily rate £413 £400 £400
Median daily rate % change year-on-year +3.13% - +6.67%
10th Percentile £281 £258 £263
90th Percentile £550 £545 £550
England median daily rate £473 £450 £425
% change year-on-year +5.00% +5.88% +3.03%
Number of hourly rates quoted 117 86 129
Yorkshire median hourly rate £17.41 £14.20 £14.87
Median hourly rate % change year-on-year +22.61% -4.47% +7.14%
10th Percentile £11.17 £9.25 £10.70
90th Percentile £43.25 £28.03 £38.10
England median hourly rate £21.00 £24.93 £22.50
% change year-on-year -15.75% +10.78% +3.97%

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 23 October 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 23 October 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 +2 324 £425 - 88
South Yorkshire -17 43 £420 -6.67% 18
North Yorkshire +1 7 £438 -2.78% 18
East Yorkshire -1 3 £438 +25.00% 9
TDD
England

For the 6 months to 23 October 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.

1 315 (80.98%) Agile Software Development
2 196 (50.39%) Java
3 171 (43.96%) JavaScript
4 154 (39.59%) Microservices
5 134 (34.45%) BDD
6 114 (29.31%) Git (software)
7 108 (27.76%) SQL
8 94 (24.16%) Software Engineering
9 90 (23.14%) Continuous Integration
10 87 (22.37%) .NET
10 87 (22.37%) Scrum
11 86 (22.11%) Test Automation
12 81 (20.82%) Spring
13 80 (20.57%) MySQL
14 79 (20.31%) C#
15 77 (19.79%) Amazon AWS
16 76 (19.54%) MVC
17 75 (19.28%) NoSQL
17 75 (19.28%) Node.js
18 71 (18.25%) Spring Boot
19 67 (17.22%) JIRA
19 67 (17.22%) RESTful
20 63 (16.20%) Jenkins
21 62 (15.94%) Docker
21 62 (15.94%) Pair Programming
22 61 (15.68%) Unit Testing
23 60 (15.42%) ASP.NET
23 60 (15.42%) Java 8
24 59 (15.17%) SQL Server
25 57 (14.65%) HTML

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 54 (13.88%) Confluence
2 19 (4.88%) Apache
3 17 (4.37%) Elasticsearch
4 15 (3.86%) nginx
5 12 (3.08%) Apache Spark
6 11 (2.83%) CMS
7 10 (2.57%) Sitecore CMS
8 8 (2.06%) Adobe Experience Manager
8 8 (2.06%) Tomcat
9 4 (1.03%) WebSphere
9 4 (1.03%) WordPress
10 3 (0.77%) JBoss
10 3 (0.77%) Mule
11 2 (0.51%) WebSphere Application Server
12 1 (0.26%) Cloud Foundry
12 1 (0.26%) IIS
12 1 (0.26%) Jetty
12 1 (0.26%) Mongrel
12 1 (0.26%) NServiceBus
12 1 (0.26%) WebLogic
Business Applications
1 1 (0.26%) Distributed Ledger
Cloud Services
1 77 (19.79%) Amazon AWS
2 41 (10.54%) Microsoft Azure
3 28 (7.20%) Slack
4 24 (6.17%) Amazon EC2
5 13 (3.34%) GitHub
6 8 (2.06%) npm
7 7 (1.80%) Serverless
8 6 (1.54%) AWS Lambda
9 2 (0.51%) Amazon CloudWatch
9 2 (0.51%) Amazon SQS
9 2 (0.51%) Cloud Computing
9 2 (0.51%) Datadog
9 2 (0.51%) Google Cloud Platform
10 1 (0.26%) Google App Engine
10 1 (0.26%) OpenShift
10 1 (0.26%) Tricentis Tosca
Communications & Networking
1 5 (1.29%) Firewall
2 4 (1.03%) TCP/IP
3 3 (0.77%) DLNA
3 3 (0.77%) HTTP
3 3 (0.77%) Internet
3 3 (0.77%) UPnP
3 3 (0.77%) Wi-Fi
4 2 (0.51%) FIX Connectivity
4 2 (0.51%) SSH
5 1 (0.26%) AMQP
5 1 (0.26%) DHCP
5 1 (0.26%) DNS
5 1 (0.26%) FTP
5 1 (0.26%) IPsec
5 1 (0.26%) SMS
5 1 (0.26%) SSL
Database & Business Intelligence
1 80 (20.57%) MySQL
2 75 (19.28%) NoSQL
3 59 (15.17%) SQL Server
4 46 (11.83%) MongoDB
5 41 (10.54%) PostgreSQL
6 19 (4.88%) Amazon RDS
7 18 (4.63%) Apache Cassandra
8 17 (4.37%) CouchDB
9 16 (4.11%) Big Data
9 16 (4.11%) Hadoop
10 14 (3.60%) Redis
11 13 (3.34%) Riak
12 12 (3.08%) GIS
13 11 (2.83%) SQL Server 2012
14 8 (2.06%) SQL Server 2008
15 7 (1.80%) Apache Hive
15 7 (1.80%) Couchbase
16 5 (1.29%) Amazon DynamoDB
17 3 (0.77%) Relational Database
18 2 (0.51%) Oracle Database
Development Applications
1 114 (29.31%) Git (software)
2 67 (17.22%) JIRA
3 63 (16.20%) Jenkins
4 35 (9.00%) Cucumber
4 35 (9.00%) Selenium
5 30 (7.71%) Maven
6 23 (5.91%) webpack
7 22 (5.66%) Mercurial
7 22 (5.66%) Subversion
8 21 (5.40%) Octopus Deploy
9 19 (4.88%) Vagrant
10 18 (4.63%) PHPUnit
11 16 (4.11%) JUnit
12 15 (3.86%) Team Foundation Server
13 14 (3.60%) Mockito
14 12 (3.08%) gulp
15 11 (2.83%) SonarQube
16 9 (2.31%) Bitbucket
17 8 (2.06%) Visual Studio
18 7 (1.80%) Mocha
General
1 19 (4.88%) Finance
2 11 (2.83%) Retail
3 4 (1.03%) Publishing
4 3 (0.77%) Electronics
5 2 (0.51%) Banking
5 2 (0.51%) Games
5 2 (0.51%) Telecoms
6 1 (0.26%) Manufacturing
6 1 (0.26%) Marketing
Job Titles
1 312 (80.21%) Developer
2 122 (31.36%) Java Developer
3 57 (14.65%) .NET Developer
4 35 (9.00%) C# Developer
5 32 (8.23%) Senior Developer
6 31 (7.97%) C# .NET Developer
6 31 (7.97%) PHP Developer
7 30 (7.71%) JavaScript Developer
7 30 (7.71%) React Developer
8 26 (6.68%) Software Engineer
9 23 (5.91%) Python Developer
10 17 (4.37%) ASP.NET Developer
10 17 (4.37%) C# ASP.NET Developer
11 16 (4.11%) ASP.NET MVC Developer
11 16 (4.11%) Senior Java Developer
12 15 (3.86%) Agile Developer
12 15 (3.86%) Node.js Developer
13 13 (3.34%) Software Developer
14 12 (3.08%) DevOps Engineer
14 12 (3.08%) HTML Developer
Libraries, Frameworks & Software Standards
1 87 (22.37%) .NET
2 81 (20.82%) Spring
3 75 (19.28%) Node.js
4 71 (18.25%) Spring Boot
5 67 (17.22%) RESTful
6 60 (15.42%) ASP.NET
7 57 (14.65%) HTML
8 56 (14.40%) ASP.NET MVC
9 55 (14.14%) CSS
10 52 (13.37%) REST
11 51 (13.11%) Hibernate
12 50 (12.85%) React
13 42 (10.80%) AngularJS
14 41 (10.54%) ASP.NET Web API
15 38 (9.77%) Web Services
16 28 (7.20%) HTML5
16 28 (7.20%) Kafka
16 28 (7.20%) RabbitMQ
16 28 (7.20%) Vue.js
17 25 (6.43%) CSS3
Miscellaneous
1 22 (5.66%) Greenfield Project
2 19 (4.88%) Enterprise Software
3 13 (3.34%) User Experience
4 5 (1.29%) Computer Science
4 5 (1.29%) NHS
5 4 (1.03%) Self-Motivation
6 3 (0.77%) Algorithms
6 3 (0.77%) Data Structures
6 3 (0.77%) Foreign Exchange (FX)
6 3 (0.77%) MPEG
7 2 (0.51%) Client/Server
7 2 (0.51%) Data Centre
7 2 (0.51%) Equities
7 2 (0.51%) Management Information System
7 2 (0.51%) N-Tier
7 2 (0.51%) PKI
8 1 (0.26%) Analytical Skills
8 1 (0.26%) Fintech
8 1 (0.26%) Mobile App
8 1 (0.26%) Public Cloud
Operating Systems
1 46 (11.83%) Linux
2 22 (5.66%) Red Hat Enterprise Linux
3 17 (4.37%) VMS
4 9 (2.31%) Unix
5 7 (1.80%) Android
6 4 (1.03%) Apple iOS
7 3 (0.77%) Embedded Linux
8 2 (0.51%) Mac OS X
8 2 (0.51%) Windows
Processes & Methodologies
1 315 (80.98%) Agile Software Development
2 154 (39.59%) Microservices
3 134 (34.45%) BDD
4 94 (24.16%) Software Engineering
5 90 (23.14%) Continuous Integration
6 87 (22.37%) Scrum
7 86 (22.11%) Test Automation
8 76 (19.54%) MVC
9 62 (15.94%) Pair Programming
10 61 (15.68%) Unit Testing
11 48 (12.34%) OO
12 45 (11.57%) Mentoring
13 43 (11.05%) DevOps
14 38 (9.77%) Kanban
14 38 (9.77%) SOA
15 34 (8.74%) SDLC
16 31 (7.97%) Coaching
17 29 (7.46%) OOP
18 24 (6.17%) Open Source
19 23 (5.91%) CQRS
Programming Languages
1 196 (50.39%) Java
2 171 (43.96%) JavaScript
3 108 (27.76%) SQL
4 79 (20.31%) C#
5 60 (15.42%) Java 8
6 56 (14.40%) PHP
7 43 (11.05%) Python
8 30 (7.71%) Scala
9 22 (5.66%) PHP 7
10 21 (5.40%) Groovy
11 19 (4.88%) T-SQL
12 12 (3.08%) PowerShell
13 10 (2.57%) Kotlin
14 7 (1.80%) Clojure
15 6 (1.54%) C
15 6 (1.54%) TypeScript
16 5 (1.29%) C++
16 5 (1.29%) ES6
16 5 (1.29%) PHP 5
17 4 (1.03%) Go
Qualifications
1 16 (4.11%) BPSS Clearance
2 13 (3.34%) SC Cleared
2 13 (3.34%) Security Cleared
3 8 (2.06%) Degree
4 5 (1.29%) Computer Science Degree
5 3 (0.77%) BC Cleared
6 1 (0.26%) ISEB
6 1 (0.26%) ISTQB Foundation Certification
Quality Assurance & Compliance
1 16 (4.11%) QA
2 3 (0.77%) Disclosure Scotland
3 2 (0.51%) PMO
System Software
1 62 (15.94%) Docker
2 6 (1.54%) Virtual Machines
3 3 (0.77%) VMware Infrastructure
4 2 (0.51%) vSphere
5 1 (0.26%) Xen
Systems Management
1 17 (4.37%) Ansible
2 13 (3.34%) Puppet
3 12 (3.08%) Terraform
4 8 (2.06%) Grafana
4 8 (2.06%) Kubernetes
5 7 (1.80%) Graylog
6 3 (0.77%) Opscode Chef
7 2 (0.51%) Kibana
7 2 (0.51%) Prometheus
8 1 (0.26%) Cobbler
8 1 (0.26%) Graphite
8 1 (0.26%) OpenView
8 1 (0.26%) SCOM
8 1 (0.26%) ZABBIX
Vendors
1 21 (5.40%) Microsoft
2 20 (5.14%) Zend
3 17 (4.37%) Oracle
4 13 (3.34%) Sitecore
5 10 (2.57%) Coverity
6 8 (2.06%) Adobe
6 8 (2.06%) Splunk
7 5 (1.29%) Google
7 5 (1.29%) MuleSoft
8 4 (1.03%) Red Hat
9 3 (0.77%) IBM
9 3 (0.77%) VMware
10 1 (0.26%) HP
10 1 (0.26%) Informatica
10 1 (0.26%) Perforce
10 1 (0.26%) TIBCO
10 1 (0.26%) Xamarin