Period
to 10 December 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 10 December 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
10 Dec 2018
Same period 2017 Same period 2016
Rank 22 22 17
Rank change year-on-year 0 -5 +9
Contract jobs citing TDD 335 305 387
As % of all contract IT jobs advertised in Yorkshire 6.75% 6.89% 7.27%
As % of the Processes & Methodologies category 7.75% 8.05% 8.50%
Number of daily rates quoted 241 260 313
Yorkshire median daily rate £425 £425 £425
10th Percentile £320 £340 £313
90th Percentile £538 £538 £550
England median daily rate £510 £500 £460
% change year-on-year +2.00% +8.70% +2.22%
Number of hourly rates quoted 0 0 0
Yorkshire median hourly rate - - -
England median hourly rate £45.00 £45.00 £42.50
% change year-on-year - +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 4,323 3,787 4,553
As % of all contract IT jobs advertised in Yorkshire 87.05% 85.56% 85.53%
Number of daily rates quoted 2,938 2,507 2,950
Yorkshire median daily rate £413 £405 £400
Median daily rate % change year-on-year +1.85% +1.25% +6.67%
10th Percentile £281 £261 £260
90th Percentile £550 £550 £538
England median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% -
Number of hourly rates quoted 118 100 142
Yorkshire median hourly rate £17.00 £16.00 £14.53
Median hourly rate % change year-on-year +6.25% +10.10% +0.22%
10th Percentile £10.75 £10.50 £10.52
90th Percentile £41.50 £40.00 £34.83
England median hourly rate £22.00 £24.69 £22.84
% change year-on-year -10.88% +8.10% +3.80%

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 10 December 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 10 December 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 -3 268 £438 +2.94% 85
South Yorkshire -10 47 £423 -6.11% 14
North Yorkshire -6 7 £425 -5.56% 18
East Yorkshire +1 3 £438 +25.00% 4
TDD
England

For the 6 months to 10 December 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.

1 264 (78.81%) Agile Software Development
2 161 (48.06%) Java
3 149 (44.48%) JavaScript
4 129 (38.51%) BDD
5 121 (36.12%) Microservices
6 110 (32.84%) SQL
7 106 (31.64%) Git (software)
8 93 (27.76%) Software Engineering
9 86 (25.67%) .NET
10 79 (23.58%) Test Automation
11 78 (23.28%) Continuous Integration
12 76 (22.69%) C#
12 76 (22.69%) NoSQL
13 72 (21.49%) Amazon AWS
14 68 (20.30%) Scrum
15 65 (19.40%) MVC
15 65 (19.40%) MySQL
16 64 (19.10%) JIRA
17 63 (18.81%) Node.js
18 62 (18.51%) Spring
19 59 (17.61%) Pair Programming
20 58 (17.31%) Jenkins
21 57 (17.01%) MongoDB
21 57 (17.01%) Python
22 54 (16.12%) SQL Server
22 54 (16.12%) HTML
23 53 (15.82%) Confluence
24 52 (15.52%) Spring Boot
25 51 (15.22%) Java 8
26 50 (14.93%) ASP.NET

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 53 (15.82%) Confluence
2 32 (9.55%) Elasticsearch
3 29 (8.66%) nginx
4 22 (6.57%) Apache
5 20 (5.97%) Apache Spark
6 11 (3.28%) CMS
6 11 (3.28%) Sitecore CMS
7 5 (1.49%) SharePoint
7 5 (1.49%) Tomcat
8 4 (1.19%) WordPress
9 3 (0.90%) JBoss
9 3 (0.90%) WebSphere
10 2 (0.60%) Mule
10 2 (0.60%) WebSphere Application Server
11 1 (0.30%) Adobe Experience Manager
11 1 (0.30%) Cloud Foundry
11 1 (0.30%) WebLogic
Business Applications
1 1 (0.30%) Distributed Ledger
Cloud Services
1 72 (21.49%) Amazon AWS
2 40 (11.94%) Microsoft Azure
3 26 (7.76%) Slack
4 21 (6.27%) Amazon EC2
5 17 (5.07%) GitHub
6 10 (2.99%) Serverless
7 9 (2.69%) AWS Lambda
8 3 (0.90%) npm
9 2 (0.60%) Amazon CloudWatch
9 2 (0.60%) Amazon S3
9 2 (0.60%) Amazon SQS
9 2 (0.60%) Cloud Computing
9 2 (0.60%) Datadog
9 2 (0.60%) Heroku
9 2 (0.60%) IaaS
10 1 (0.30%) Google Cloud Platform
10 1 (0.30%) OpenShift
10 1 (0.30%) Tricentis Tosca
Communications & Networking
1 7 (2.09%) HTTP
2 5 (1.49%) Firewall
2 5 (1.49%) Internet
3 4 (1.19%) DLNA
3 4 (1.19%) TCP/IP
3 4 (1.19%) UPnP
3 4 (1.19%) Wi-Fi
4 2 (0.60%) SSH
5 1 (0.30%) AMQP
Database & Business Intelligence
1 76 (22.69%) NoSQL
2 65 (19.40%) MySQL
3 57 (17.01%) MongoDB
4 54 (16.12%) SQL Server
5 48 (14.33%) PostgreSQL
6 29 (8.66%) Redis
7 28 (8.36%) Apache Cassandra
8 26 (7.76%) CouchDB
9 24 (7.16%) Hadoop
10 23 (6.87%) GIS
10 23 (6.87%) Riak
11 17 (5.07%) Amazon RDS
12 11 (3.28%) Big Data
13 8 (2.39%) Relational Database
14 7 (2.09%) Amazon DynamoDB
15 6 (1.79%) SQL Server 2012
16 5 (1.49%) Apache Hive
16 5 (1.49%) Couchbase
16 5 (1.49%) Neo4j
17 3 (0.90%) SQL Server 2008
Development Applications
1 106 (31.64%) Git (software)
2 64 (19.10%) JIRA
3 58 (17.31%) Jenkins
4 41 (12.24%) Subversion
5 36 (10.75%) Cucumber
6 35 (10.45%) Mercurial
7 28 (8.36%) Selenium
8 26 (7.76%) Maven
9 18 (5.37%) Vagrant
10 17 (5.07%) webpack
11 16 (4.78%) PHPUnit
12 14 (4.18%) gulp
13 13 (3.88%) JUnit
14 11 (3.28%) Team Foundation Server
15 10 (2.99%) Bitbucket
15 10 (2.99%) Mockito
15 10 (2.99%) Octopus Deploy
16 7 (2.09%) JMeter
17 6 (1.79%) TeamCity
17 6 (1.79%) Visual Studio
General
1 13 (3.88%) Finance
2 10 (2.99%) Retail
3 4 (1.19%) Electronics
4 1 (0.30%) Games
4 1 (0.30%) Law
4 1 (0.30%) Legal
4 1 (0.30%) Manufacturing
4 1 (0.30%) Publishing
Job Titles
1 255 (76.12%) Developer
2 94 (28.06%) Java Developer
3 50 (14.93%) .NET Developer
4 29 (8.66%) Software Engineer
5 28 (8.36%) Senior Developer
6 24 (7.16%) Python Developer
7 23 (6.87%) PHP Developer
7 23 (6.87%) React Developer
8 22 (6.57%) C# Developer
8 22 (6.57%) JavaScript Developer
9 20 (5.97%) C# .NET Developer
10 15 (4.48%) ASP.NET Developer
10 15 (4.48%) DevOps Engineer
11 14 (4.18%) Senior Java Developer
12 13 (3.88%) AWS Developer
12 13 (3.88%) C# ASP.NET Developer
12 13 (3.88%) Full Stack Developer
13 12 (3.58%) ASP.NET MVC Developer
14 11 (3.28%) Software Developer
15 9 (2.69%) Agile Developer
Libraries, Frameworks & Software Standards
1 86 (25.67%) .NET
2 63 (18.81%) Node.js
3 62 (18.51%) Spring
4 54 (16.12%) HTML
5 52 (15.52%) Spring Boot
6 50 (14.93%) ASP.NET
7 49 (14.63%) CSS
8 48 (14.33%) ASP.NET MVC
8 48 (14.33%) RESTful
9 46 (13.73%) REST
10 45 (13.43%) React
11 40 (11.94%) AngularJS
12 39 (11.64%) Hibernate
13 38 (11.34%) jQuery
13 38 (11.34%) RabbitMQ
14 30 (8.96%) HTML5
15 27 (8.06%) ASP.NET Web API
15 27 (8.06%) CSS3
16 24 (7.16%) Vue.js
17 22 (6.57%) Web Services
Miscellaneous
1 21 (6.27%) Greenfield Project
2 19 (5.67%) Enterprise Software
3 17 (5.07%) User Experience
4 4 (1.19%) Analytical Skills
4 4 (1.19%) MPEG
5 3 (0.90%) Algorithms
5 3 (0.90%) Data Structures
5 3 (0.90%) Management Information System
5 3 (0.90%) Mobile App
5 3 (0.90%) NHS
5 3 (0.90%) Self-Motivation
6 2 (0.60%) Client/Server
6 2 (0.60%) Distributed Denial-of-Service
6 2 (0.60%) N-Tier
6 2 (0.60%) PKI
7 1 (0.30%) Data Centre
7 1 (0.30%) Fintech
7 1 (0.30%) Public Cloud
Operating Systems
1 45 (13.43%) Linux
2 23 (6.87%) Red Hat Enterprise Linux
3 15 (4.48%) VMS
4 13 (3.88%) Unix
5 7 (2.09%) Android
5 7 (2.09%) Mac OS X
6 4 (1.19%) Embedded Linux
7 2 (0.60%) CentOS
8 1 (0.30%) Apple iOS
8 1 (0.30%) Windows
8 1 (0.30%) Windows 10
Processes & Methodologies
1 264 (78.81%) Agile Software Development
2 129 (38.51%) BDD
3 121 (36.12%) Microservices
4 93 (27.76%) Software Engineering
5 79 (23.58%) Test Automation
6 78 (23.28%) Continuous Integration
7 68 (20.30%) Scrum
8 65 (19.40%) MVC
9 59 (17.61%) Pair Programming
10 49 (14.63%) DevOps
11 48 (14.33%) Unit Testing
12 42 (12.54%) OO
13 36 (10.75%) SDLC
14 32 (9.55%) Web Development
15 30 (8.96%) Kanban
15 30 (8.96%) OOP
16 29 (8.66%) Mentoring
17 27 (8.06%) E-Commerce
17 27 (8.06%) SOA
18 24 (7.16%) Coaching
Programming Languages
1 161 (48.06%) Java
2 149 (44.48%) JavaScript
3 110 (32.84%) SQL
4 76 (22.69%) C#
5 57 (17.01%) Python
6 51 (15.22%) Java 8
7 49 (14.63%) PHP
8 26 (7.76%) Scala
9 20 (5.97%) PHP 7
10 18 (5.37%) T-SQL
11 17 (5.07%) Groovy
12 8 (2.39%) Kotlin
12 8 (2.39%) PowerShell
13 7 (2.09%) C
13 7 (2.09%) C++
13 7 (2.09%) Clojure
14 5 (1.49%) ES6
14 5 (1.49%) Shell Script
15 4 (1.19%) Go
16 3 (0.90%) ES7
Qualifications
1 18 (5.37%) BPSS Clearance
2 7 (2.09%) Degree
3 6 (1.79%) SC Cleared
3 6 (1.79%) Security Cleared
4 5 (1.49%) Computer Science Degree
5 3 (0.90%) BC Cleared
Quality Assurance & Compliance
1 14 (4.18%) QA
2 3 (0.90%) Disclosure Scotland
3 2 (0.60%) PMO
System Software
1 46 (13.73%) Docker
2 4 (1.19%) Virtual Machines
3 2 (0.60%) VMware Infrastructure
3 2 (0.60%) vSphere
Systems Management
1 31 (9.25%) Ansible
2 12 (3.58%) Puppet
3 7 (2.09%) Grafana
4 6 (1.79%) Kubernetes
5 5 (1.49%) Graylog
5 5 (1.49%) Terraform
6 4 (1.19%) Opscode Chef
7 2 (0.60%) Graphite
7 2 (0.60%) Kibana
7 2 (0.60%) Prometheus
8 1 (0.30%) Cobbler
8 1 (0.30%) OpenView
8 1 (0.30%) SCOM
8 1 (0.30%) ZABBIX
Vendors
1 25 (7.46%) Microsoft
2 18 (5.37%) Zend
3 16 (4.78%) Oracle
4 11 (3.28%) Sitecore
5 5 (1.49%) Google
5 5 (1.49%) Splunk
6 4 (1.19%) MuleSoft
7 3 (0.90%) Coverity
7 3 (0.90%) IBM
8 2 (0.60%) EnterpriseDB
8 2 (0.60%) Pega
8 2 (0.60%) Red Hat
8 2 (0.60%) ServiceNow
8 2 (0.60%) VMware
9 1 (0.30%) Adobe
9 1 (0.30%) Atlassian
9 1 (0.30%) HP
9 1 (0.30%) Perforce
9 1 (0.30%) TIBCO
9 1 (0.30%) Xamarin