Period
to 17 January 2019

The following table provides summary statistics for contract job vacancies advertised in South 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 January 2019 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)
Yorkshire > South Yorkshire
6 months to
17 Jan 2019
Same period 2018 Same period 2017
Rank 28 19 15
Rank change year-on-year -9 -4 +5
Contract jobs citing TDD 57 56 94
As % of all contract IT jobs advertised in South Yorkshire 6.22% 6.70% 8.24%
As % of the Processes & Methodologies category 7.13% 7.98% 9.88%
Number of daily rates quoted 36 46 72
South Yorkshire median daily rate £444 £450 £450
Median daily rate % change year-on-year -1.39% - +12.50%
10th Percentile £359 £366 £369
90th Percentile £550 £645 £596
Yorkshire median daily rate £450 £425 £438
% change year-on-year +5.88% -2.86% +9.38%
Number of hourly rates quoted 1 0 0
South Yorkshire median hourly rate £35.00 - -
Yorkshire median hourly rate £35.00 - -

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 South Yorkshire with a requirement for process or methodology skills.

All Process and Methodology Skills
South Yorkshire
Contract vacancies with a requirement for process or methodology skills 800 702 951
As % of all contract IT jobs advertised in South Yorkshire 87.34% 83.97% 83.35%
Number of daily rates quoted 524 388 645
South Yorkshire median daily rate £425 £425 £425
10th Percentile £250 £263 £258
90th Percentile £575 £588 £567
Yorkshire median daily rate £420 £400 £400
% change year-on-year +5.00% - +3.23%
Number of hourly rates quoted 22 13 35
South Yorkshire median hourly rate £15.00 £35.63 £22.50
Median hourly rate % change year-on-year -57.90% +58.36% +60.71%
10th Percentile £9.31 £18.14 £13.20
90th Percentile £35.00 £47.45 £49.00
Yorkshire median hourly rate £17.13 £17.50 £14.87
% change year-on-year -2.14% +17.73% -0.90%

TDD
Job Vacancy Trend in South Yorkshire

Job postings citing TDD as a percentage of all IT jobs advertised in South Yorkshire.

Job vacancy trend for TDD in South Yorkshire

TDD
Contractor Daily Rate Trend in South Yorkshire

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in South Yorkshire.

Contractor daily rate trend for TDD in South Yorkshire

TDD
Contractor Daily Rate Histogram in South Yorkshire

The daily rate distribution of IT jobs citing TDD in South Yorkshire over the 6 months to 17 January 2019.

Contractor daily rate histogram for TDD in South Yorkshire

TDD
Contractor Hourly Rate Trend in South Yorkshire

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

Contractor hourly rate trend for TDD in South Yorkshire

TDD
Contract Job Locations in South 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 South Yorkshire region over the 6 months to 17 January 2019. 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
Sheffield -6 51 £450 - 32
TDD
Yorkshire

For the 6 months to 17 January 2019, 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 South Yorkshire region with a requirement for TDD.

1 52 (91.23%) Agile Software Development
2 35 (61.40%) JavaScript
3 29 (50.88%) HTML
4 28 (49.12%) CSS
5 26 (45.61%) Git (software)
6 25 (43.86%) Web Development
6 25 (43.86%) Java
7 21 (36.84%) Unix
7 21 (36.84%) Node.js
8 19 (33.33%) Test Automation
9 18 (31.58%) C#
10 16 (28.07%) Linux
11 15 (26.32%) .NET
11 15 (26.32%) RESTful
12 14 (24.56%) SQL
12 14 (24.56%) GitHub
12 14 (24.56%) AngularJS
12 14 (24.56%) Microservices
13 13 (22.81%) DevOps
13 13 (22.81%) Java 8
13 13 (22.81%) Spring
14 12 (21.05%) Continuous Integration
14 12 (21.05%) BDD
14 12 (21.05%) MVC
14 12 (21.05%) Spring Boot
15 11 (19.30%) Mac OS X
16 10 (17.54%) Microsoft
16 10 (17.54%) Web Design
16 10 (17.54%) Responsive Web Design
17 9 (15.79%) React

TDD
Co-occurring IT Skills in South 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 4 (7.02%) Confluence
2 3 (5.26%) Apache
3 2 (3.51%) nginx
4 1 (1.75%) JBoss
4 1 (1.75%) WebLogic
4 1 (1.75%) WebSphere
Business Applications
1 1 (1.75%) Distributed Ledger
Cloud Services
1 14 (24.56%) GitHub
2 9 (15.79%) Microsoft Azure
3 8 (14.04%) PaaS
4 3 (5.26%) Heroku
5 2 (3.51%) IaaS
6 1 (1.75%) Amazon AWS
6 1 (1.75%) Slack
Communications & Networking
1 2 (3.51%) Firewall
1 2 (3.51%) Internet
2 1 (1.75%) AMQP
2 1 (1.75%) HTTP
Database & Business Intelligence
1 8 (14.04%) SQL Server
2 5 (8.77%) NoSQL
3 3 (5.26%) MongoDB
3 3 (5.26%) MySQL
3 3 (5.26%) PostgreSQL
4 1 (1.75%) Apache Hive
4 1 (1.75%) Big Data
4 1 (1.75%) Blockchain
4 1 (1.75%) Couchbase
4 1 (1.75%) Hadoop
4 1 (1.75%) Redis
4 1 (1.75%) Relational Database
4 1 (1.75%) Riak
Development Applications
1 26 (45.61%) Git (software)
2 7 (12.28%) JIRA
3 6 (10.53%) Maven
3 6 (10.53%) Visual Studio
4 4 (7.02%) JUnit
4 4 (7.02%) Spock
4 4 (7.02%) Subversion
5 3 (5.26%) Cucumber
5 3 (5.26%) Sinon.JS
6 2 (3.51%) Mercurial
7 1 (1.75%) Artifactory
7 1 (1.75%) Bitbucket
7 1 (1.75%) FitNesse
7 1 (1.75%) Jenkins
7 1 (1.75%) Selenium
7 1 (1.75%) Vagrant
General
1 1 (1.75%) Finance
Job Titles
1 51 (89.47%) Developer
2 17 (29.82%) Java Developer
3 12 (21.05%) .NET Developer
4 11 (19.30%) JavaScript Developer
4 11 (19.30%) Senior Developer
5 4 (7.02%) Agile Developer
5 4 (7.02%) Full Stack Developer
5 4 (7.02%) React Developer
5 4 (7.02%) Web Developer
6 3 (5.26%) ASP.NET Developer
6 3 (5.26%) Digital Developer
7 2 (3.51%) .NET Web Developer
7 2 (3.51%) Front End Developer (Client-Side Developer)
7 2 (3.51%) HTML Developer
7 2 (3.51%) Senior .NET Developer
7 2 (3.51%) Senior JavaScript Developer
7 2 (3.51%) Software Engineer
7 2 (3.51%) UI Developer
8 1 (1.75%) Node.js Developer
8 1 (1.75%) Senior Agile Developer
Libraries, Frameworks & Software Standards
1 29 (50.88%) HTML
2 28 (49.12%) CSS
3 21 (36.84%) Node.js
4 15 (26.32%) .NET
4 15 (26.32%) RESTful
5 14 (24.56%) AngularJS
6 13 (22.81%) Spring
7 12 (21.05%) Spring Boot
8 9 (15.79%) React
9 8 (14.04%) ASP.NET
9 8 (14.04%) REST
10 7 (12.28%) ASP.NET MVC
10 7 (12.28%) Hibernate
11 6 (10.53%) ASP.NET Web API
11 6 (10.53%) jQuery
11 6 (10.53%) Vue.js
12 5 (8.77%) HTML5
12 5 (8.77%) Kafka
13 4 (7.02%) Web Services
14 3 (5.26%) XML
Miscellaneous
1 6 (10.53%) User Experience
2 5 (8.77%) Greenfield Project
3 3 (5.26%) Management Information System
4 2 (3.51%) Analytical Skills
4 2 (3.51%) Distributed Denial-of-Service
5 1 (1.75%) Algorithms
5 1 (1.75%) Data Structures
Operating Systems
1 21 (36.84%) Unix
2 16 (28.07%) Linux
3 11 (19.30%) Mac OS X
4 2 (3.51%) CentOS
4 2 (3.51%) Red Hat Enterprise Linux
Processes & Methodologies
1 52 (91.23%) Agile Software Development
2 25 (43.86%) Web Development
3 19 (33.33%) Test Automation
4 14 (24.56%) Microservices
5 13 (22.81%) DevOps
6 12 (21.05%) BDD
6 12 (21.05%) Continuous Integration
6 12 (21.05%) MVC
7 10 (17.54%) Responsive Web Design
7 10 (17.54%) Web Design
8 9 (15.79%) Continuous Delivery
8 9 (15.79%) Continuous Deployment
8 9 (15.79%) Pair Programming
8 9 (15.79%) SDLC
9 8 (14.04%) Configuration Management
9 8 (14.04%) Open Source
10 7 (12.28%) OO
10 7 (12.28%) Software Engineering
11 6 (10.53%) Scrum
12 5 (8.77%) Service Design
Programming Languages
1 35 (61.40%) JavaScript
2 25 (43.86%) Java
3 18 (31.58%) C#
4 14 (24.56%) SQL
5 13 (22.81%) Java 8
6 8 (14.04%) Bash Shell
6 8 (14.04%) ES6
7 5 (8.77%) Python
7 5 (8.77%) Shell Script
8 4 (7.02%) PHP
9 3 (5.26%) Kotlin
9 3 (5.26%) XPath
10 2 (3.51%) Ruby
10 2 (3.51%) Scala
11 1 (1.75%) T-SQL
Qualifications
1 5 (8.77%) Security Cleared
2 4 (7.02%) BPSS Clearance
3 1 (1.75%) BC Cleared
3 1 (1.75%) Computer Science Degree
3 1 (1.75%) Degree
Quality Assurance & Compliance
1 5 (8.77%) QA
2 4 (7.02%) Disclosure Scotland
3 1 (1.75%) GDPR
System Software
1 5 (8.77%) Docker
Systems Management
1 4 (7.02%) Puppet
2 3 (5.26%) Ansible
3 1 (1.75%) Cobbler
3 1 (1.75%) Grafana
3 1 (1.75%) Graylog
3 1 (1.75%) Kubernetes
3 1 (1.75%) Opscode Chef
3 1 (1.75%) Terraform
Vendors
1 10 (17.54%) Microsoft
2 2 (3.51%) EnterpriseDB
2 2 (3.51%) Pega
2 2 (3.51%) ServiceNow
3 1 (1.75%) IBM
3 1 (1.75%) Informatica
3 1 (1.75%) TIBCO