The table below looks at the statistics for TDD skills in IT contracts advertised for the Sheffield region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 24 February 2017 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
24 Feb 2017
Same period 2016 Same period 2015
Test-Driven Development (TDD)
South Yorkshire / Sheffield
Rank 12 24 18
Rank change year-on-year
+12 -6
Contract jobs citing TDD 38 23 14
As % of all contract IT jobs located in Sheffield 10.64% 5.39% 6.01%
As % of the Processes & Methodologies category 12.75% 6.61% 7.33%
Number of daily rates quoted 17 18 9
Median daily rate £425 £400 £325
Median daily rate % change year-on-year
+6.25% +23.07%
90% offered a daily rate of more than £390 £285 £293
10% offered a daily rate of more than £485 £458 £338
UK excluding London median daily rate £419 £400 £375
% change year-on-year
+4.62% +6.66%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £39.00 £40.00 £34.50
% change year-on-year
-2.50% +15.94%

The following table is for comparison with the above and provides statistics for the entire Processes & Methodologies category in contract jobs advertised in the Sheffield region.

Processes & Methodologies Category
Sheffield
Contract IT job ads with a match in the
Processes & Methodologies category
298 348 191
As % of all contract IT jobs located in Sheffield 83.47% 81.50% 81.97%
Number of daily rates quoted 191 240 122
Median daily rate £440 £425 £325
Median daily rate % change year-on-year
+3.52% +30.76%
90% offered a daily rate of more than £283 £288 £260
10% offered a daily rate of more than £550 £587 £500
UK excluding London median daily rate £408 £400 £400
% change year-on-year
+1.87% -
Number of hourly rates quoted 4 6 6
Median hourly rate £20.97 £14.00 £30.00
Median hourly rate % change year-on-year
+49.78% -53.33%
UK excluding London median hourly rate £36.00 £40.00 £27.50
% change year-on-year
-10.00% +45.45%

TDD
Jobs Demand Trend in Sheffield

The demand trend of contract jobs across the Sheffield region citing TDD as a proportion of all IT contracts with a match in the Processes & Methodologies category.

TDD Jobs Demand Trend in Sheffield

TDD
Daily Rate Trend in Sheffield

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing TDD across the Sheffield region.

TDD Daily Rate Trend in Sheffield

TDD
Daily Rate Histogram in Sheffield

This chart provides a histogram of daily rates quoted in contract IT jobs citing TDD across the Sheffield region over the 3 months to 24 February 2017.

TDD Daily Rate Histogram in Sheffield

TDD
Hourly Rate Trend in Sheffield

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

TDD Hourly Rate Trend in Sheffield

TDD
Top 30 Related IT Skills in Sheffield

For the 6 months to 24 February 2017, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Sheffield region with a requirement for TDD.

1 73 (77.66%) Agile Software Development
2 59 (62.77%) Java
3 48 (51.06%) Scrum
4 43 (45.74%) BDD
5 32 (34.04%) JavaScript
6 31 (32.98%) Git (software)
7 28 (29.79%) CSS
8 27 (28.72%) Kanban
9 25 (26.60%) Prototyping
10 24 (25.53%) User Stories
10 24 (25.53%) Web Services
11 22 (23.40%) HTML
12 21 (22.34%) Linux
12 21 (22.34%) Product Management
13 20 (21.28%) REST
13 20 (21.28%) Software Architecture
14 19 (20.21%) DevOps
15 18 (19.15%) Continuous Integration
16 17 (18.09%) Ruby
17 16 (17.02%) Selenium
17 16 (17.02%) Configuration Management
17 16 (17.02%) Relational Database
18 15 (15.96%) Python
18 15 (15.96%) Web Development
18 15 (15.96%) Spring
19 14 (14.89%) Unix
19 14 (14.89%) Docker
19 14 (14.89%) Microservices
19 14 (14.89%) Scala
20 13 (13.83%) Continuous Delivery

TDD
Top Related IT Skills in Sheffield 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 11 (11.70%) Tomcat
2 7 (7.45%) Elasticsearch
3 6 (6.38%) CMS
3 6 (6.38%) Confluence
3 6 (6.38%) WordPress
4 2 (2.13%) Alfresco
4 2 (2.13%) Apache ServiceMix
4 2 (2.13%) Jetty
5 1 (1.06%) nginx
Business Applications
1 4 (4.26%) SAP Oil and Gas
2 1 (1.06%) Dynamics CRM
Cloud Services
1 5 (5.32%) GitHub
2 1 (1.06%) Amazon AWS
2 1 (1.06%) Amazon EC2
2 1 (1.06%) Force.com
2 1 (1.06%) SaaS
Communications & Networking
1 5 (5.32%) HTTP
2 4 (4.26%) Internet
3 1 (1.06%) Intranet
Database & Business Intelligence
1 16 (17.02%) Relational Database
2 10 (10.64%) MySQL
3 9 (9.57%) MongoDB
3 9 (9.57%) NoSQL
4 7 (7.45%) PostgreSQL
5 2 (2.13%) Big Data
6 1 (1.06%) Redis
Development Applications
1 31 (32.98%) Git (software)
2 16 (17.02%) Selenium
3 12 (12.77%) Mockito
4 11 (11.70%) jMock
5 10 (10.64%) Spock
6 9 (9.57%) EasyMock
7 7 (7.45%) JIRA
8 5 (5.32%) Cucumber
8 5 (5.32%) Gradle
8 5 (5.32%) Jenkins
8 5 (5.32%) JUnit
8 5 (5.32%) Maven
9 4 (4.26%) WebDriver
10 3 (3.19%) PHPUnit
10 3 (3.19%) Subversion
11 2 (2.13%) Ant
11 2 (2.13%) DbUnit
11 2 (2.13%) HP UFT
11 2 (2.13%) NUnit
11 2 (2.13%) SonarQube
General
1 5 (5.32%) Finance
1 5 (5.32%) Marketing
2 4 (4.26%) Electronics
2 4 (4.26%) Manufacturing
2 4 (4.26%) Telecoms
3 1 (1.06%) Banking
3 1 (1.06%) Billing
3 1 (1.06%) Multimedia
Job Titles
1 66 (70.21%) Developer
2 39 (41.49%) Java Developer
3 21 (22.34%) Architect
4 20 (21.28%) Technical Architect
5 10 (10.64%) PHP Developer
6 9 (9.57%) Agile Developer
6 9 (9.57%) Agile Java Developer
7 7 (7.45%) Consultant
8 6 (6.38%) Automation Tester
8 6 (6.38%) Front End Developer (Client-Side Developer)
8 6 (6.38%) Tester
9 5 (5.32%) Senior Developer
9 5 (5.32%) Web Consultant
10 4 (4.26%) Java Architect
10 4 (4.26%) Java Automation Tester
10 4 (4.26%) Java Technical Architect
10 4 (4.26%) Selenium Automation Tester
10 4 (4.26%) Selenium Tester
10 4 (4.26%) Senior Java Developer
10 4 (4.26%) Technical Developer
Libraries, Frameworks & Software Standards
1 28 (29.79%) CSS
2 24 (25.53%) Web Services
3 22 (23.40%) HTML
4 20 (21.28%) REST
5 15 (15.96%) Spring
6 12 (12.77%) RESTful
7 11 (11.70%) Spring Boot
8 9 (9.57%) SOAP
8 9 (9.57%) XML
9 6 (6.38%) Ajax
9 6 (6.38%) XHTML
10 5 (5.32%) Gherkin
10 5 (5.32%) Node.js
11 4 (4.26%) Apache Camel
11 4 (4.26%) Apache CXF
11 4 (4.26%) HTML5
11 4 (4.26%) Laravel
11 4 (4.26%) Symfony
12 3 (3.19%) Hibernate
12 3 (3.19%) Spring MVC
Miscellaneous
1 9 (9.57%) User Experience
2 3 (3.19%) Fintech
2 3 (3.19%) RIA
3 2 (2.13%) Blog
3 2 (2.13%) Mobile App
4 1 (1.06%) Analytical Skills
4 1 (1.06%) Data Centre
4 1 (1.06%) Foreign Exchange (FX)
4 1 (1.06%) Public Cloud
Operating Systems
1 21 (22.34%) Linux
2 14 (14.89%) Unix
3 12 (12.77%) Mac OS X
4 3 (3.19%) CentOS
5 1 (1.06%) CoreOS
Processes & Methodologies
1 73 (77.66%) Agile Software Development
2 48 (51.06%) Scrum
3 43 (45.74%) BDD
4 27 (28.72%) Kanban
5 25 (26.60%) Prototyping
6 24 (25.53%) User Stories
7 21 (22.34%) Product Management
8 20 (21.28%) Software Architecture
9 19 (20.21%) DevOps
10 18 (19.15%) Continuous Integration
11 16 (17.02%) Configuration Management
12 15 (15.96%) Web Development
13 14 (14.89%) Microservices
14 13 (13.83%) Continuous Delivery
14 13 (13.83%) Front End Development
15 12 (12.77%) Mentoring
16 11 (11.70%) OOP
17 10 (10.64%) Automated Testing
18 9 (9.57%) Line Management
19 8 (8.51%) Test Automation
Programming Languages
1 59 (62.77%) Java
2 32 (34.04%) JavaScript
3 17 (18.09%) Ruby
4 15 (15.96%) Python
5 14 (14.89%) Scala
6 11 (11.70%) SQL
7 10 (10.64%) PHP
8 9 (9.57%) Clojure
9 6 (6.38%) PHP 5
10 2 (2.13%) C
10 2 (2.13%) Go
10 2 (2.13%) Groovy
10 2 (2.13%) VB
11 1 (1.06%) C#
11 1 (1.06%) ECMAScript
11 1 (1.06%) Jython
11 1 (1.06%) Korn
11 1 (1.06%) Shell Script
11 1 (1.06%) SOQL
11 1 (1.06%) XPath
Qualifications
1 10 (10.64%) Security Cleared
2 3 (3.19%) SC Cleared
3 2 (2.13%) BC Cleared
3 2 (2.13%) CTC Cleared
3 2 (2.13%) Degree
4 1 (1.06%) BPSS Clearance
4 1 (1.06%) DBS Check
Quality Assurance & Compliance
1 3 (3.19%) QA
2 1 (1.06%) Disclosure Scotland
2 1 (1.06%) FATCA
System Software
1 14 (14.89%) Docker
2 3 (3.19%) GlusterFS
3 1 (1.06%) VMware Infrastructure
3 1 (1.06%) vSphere
Systems Management
1 4 (4.26%) Ansible
2 3 (3.19%) Kibana
2 3 (3.19%) Kubernetes
2 3 (3.19%) logstash
3 2 (2.13%) ZABBIX
4 1 (1.06%) Opscode Chef
4 1 (1.06%) Puppet
Vendors
1 6 (6.38%) Zend
2 4 (4.26%) SAP
3 1 (1.06%) Salesforce.com
3 1 (1.06%) Solace
3 1 (1.06%) VMware
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