Period
to 23 October 2017

The following table provides summary statistics for contract job vacancies advertised in Lancashire 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 2017 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)
North West > Lancashire
6 months to
23 Oct 2017
Same period 2016 Same period 2015
Rank 33 40 40
Rank change year-on-year +7 0 +13
Contract jobs citing TDD 15 28 37
As % of all contract IT jobs advertised in Lancashire 3.28% 3.75% 3.97%
As % of the Processes & Methodologies category 3.95% 4.66% 4.76%
Number of daily rates quoted 21 31 61
Lancashire median daily rate £425 £450 £375
Median daily rate % change year-on-year -5.56% +20.00% -11.24%
10th Percentile £363 £350 £263
90th Percentile £645 £550 £600
North West median daily rate £400 £425 £375
% change year-on-year -5.88% +13.33% +7.14%
Number of hourly rates quoted 2 3 0
Lancashire median hourly rate £42.50 £42.50 -
North West median hourly rate £46.25 £42.50 -
% change year-on-year +8.82% - -

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 Lancashire with a requirement for process or methodology skills.

All Process and Methodology Skills
Lancashire
Contract vacancies with a requirement for process or methodology skills 380 601 777
As % of all contract IT jobs advertised in Lancashire 82.97% 80.56% 83.46%
Number of daily rates quoted 241 393 530
Lancashire median daily rate £425 £400 £425
Median daily rate % change year-on-year +6.25% -5.88% +10.03%
10th Percentile £300 £250 £260
90th Percentile £575 £575 £600
North West median daily rate £400 £400 £400
Number of hourly rates quoted 35 59 79
Lancashire median hourly rate £42.50 £40.00 £34.95
Median hourly rate % change year-on-year +6.25% +14.45% +39.80%
10th Percentile £12.57 £12.04 £14.10
90th Percentile £47.00 £60.80 £50.60
North West median hourly rate £30.00 £21.75 £30.00
% change year-on-year +37.93% -27.50% +57.89%

TDD
Job Vacancy Trend in Lancashire

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

Job vacancy trend for TDD in Lancashire

TDD
Contractor Daily Rate Trend in Lancashire

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

Contractor daily rate trend for TDD in Lancashire

TDD
Contractor Daily Rate Histogram in Lancashire

The daily rate distribution of IT jobs citing TDD in Lancashire over the 6 months to 23 October 2017.

Contractor daily rate histogram for TDD in Lancashire

TDD
Contractor Hourly Rate Trend in Lancashire

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

Contractor hourly rate trend for TDD in Lancashire

TDD
Contract Job Locations in Lancashire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Lancashire region over the 6 months to 23 October 2017. 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
Blackpool +19 10 £477 +5.89% 3
Preston -11 4 £400 -
Carnforth 0 1 £350 -
TDD
North West

For the 6 months to 23 October 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 Lancashire region with a requirement for TDD.

1 12 (80.00%) Git (software)
2 11 (73.33%) Test Automation
2 11 (73.33%) Agile Software Development
2 11 (73.33%) Software Engineering
3 10 (66.67%) SQL
4 9 (60.00%) JavaScript
4 9 (60.00%) Open Source
4 9 (60.00%) BDD
4 9 (60.00%) REST
5 8 (53.33%) Mentoring
5 8 (53.33%) Coaching
5 8 (53.33%) Microservices
5 8 (53.33%) MongoDB
5 8 (53.33%) NoSQL
5 8 (53.33%) Red Hat Enterprise Linux
5 8 (53.33%) SFIA
5 8 (53.33%) Node.js
5 8 (53.33%) Linux
5 8 (53.33%) Java
5 8 (53.33%) MySQL
5 8 (53.33%) PostgreSQL
6 7 (46.67%) Scrum
6 7 (46.67%) Kanban
6 7 (46.67%) Cucumber
6 7 (46.67%) Jasmine
6 7 (46.67%) Jenkins
7 5 (33.33%) User Stories
7 5 (33.33%) SDLC
7 5 (33.33%) Confluence
7 5 (33.33%) Apache Cassandra

TDD
Co-occurring IT Skills in Lancashire 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 5 (33.33%) Confluence
Applications
1 1 (6.67%) Microsoft Excel
Cloud Services
1 5 (33.33%) Slack
2 1 (6.67%) Microsoft Azure
Database & Business Intelligence
1 8 (53.33%) MongoDB
1 8 (53.33%) MySQL
1 8 (53.33%) NoSQL
1 8 (53.33%) PostgreSQL
2 5 (33.33%) Apache Cassandra
3 2 (13.33%) Oracle Database
Development Applications
1 12 (80.00%) Git (software)
2 7 (46.67%) Cucumber
2 7 (46.67%) Jasmine
2 7 (46.67%) Jenkins
3 5 (33.33%) JIRA
3 5 (33.33%) JUnit
4 2 (13.33%) ClearCase
4 2 (13.33%) Hudson
4 2 (13.33%) Protractor
4 2 (13.33%) Rational Robot
4 2 (13.33%) Selenium
4 2 (13.33%) Subversion
4 2 (13.33%) Team Foundation Server
4 2 (13.33%) Visual Studio
4 2 (13.33%) WebDriver
General
1 1 (6.67%) Retail
Job Titles
1 8 (53.33%) Developer
2 5 (33.33%) Software Engineer
3 4 (26.67%) Java Developer
3 4 (26.67%) Java Software Developer
3 4 (26.67%) Software Developer
4 3 (20.00%) Java Engineer
4 3 (20.00%) Java Software Engineer
4 3 (20.00%) Lead Software Engineer
5 2 (13.33%) MySQL Developer
5 2 (13.33%) NoSQL Developer
6 1 (6.67%) .NET Developer
6 1 (6.67%) .NET Web Developer
6 1 (6.67%) C# Developer
6 1 (6.67%) QA Engineer
6 1 (6.67%) Senior Developer
6 1 (6.67%) SQL Developer
6 1 (6.67%) Test Engineer
6 1 (6.67%) Test Specialist
6 1 (6.67%) Tester
6 1 (6.67%) Web Developer
Libraries, Frameworks & Software Standards
1 9 (60.00%) REST
2 8 (53.33%) Node.js
3 4 (26.67%) XML
4 3 (20.00%) .NET
4 3 (20.00%) Web Services
5 2 (13.33%) .NET Framework
5 2 (13.33%) Entity Framework
5 2 (13.33%) JSON
5 2 (13.33%) RESTful
5 2 (13.33%) WinForms
5 2 (13.33%) WPF
5 2 (13.33%) XSD
5 2 (13.33%) XSLT
6 1 (6.67%) AngularJS
6 1 (6.67%) ASP.NET
Operating Systems
1 8 (53.33%) Linux
1 8 (53.33%) Red Hat Enterprise Linux
2 2 (13.33%) Windows
3 1 (6.67%) Android
3 1 (6.67%) Apple iOS
Processes & Methodologies
1 11 (73.33%) Agile Software Development
1 11 (73.33%) Software Engineering
1 11 (73.33%) Test Automation
2 9 (60.00%) BDD
2 9 (60.00%) Open Source
3 8 (53.33%) Coaching
3 8 (53.33%) Mentoring
3 8 (53.33%) Microservices
3 8 (53.33%) SFIA
4 7 (46.67%) Kanban
4 7 (46.67%) Scrum
5 5 (33.33%) SDLC
5 5 (33.33%) User Stories
6 3 (20.00%) Continuous Delivery
6 3 (20.00%) Integration Testing
7 2 (13.33%) Continuous Integration
7 2 (13.33%) Project Planning
7 2 (13.33%) Scenario Testing
7 2 (13.33%) SOLID
7 2 (13.33%) Test Scripting
Programming Languages
1 10 (66.67%) SQL
2 9 (60.00%) JavaScript
3 8 (53.33%) Java
4 3 (20.00%) C#
4 3 (20.00%) VB
5 2 (13.33%) VB6
6 1 (6.67%) Apple Swift
6 1 (6.67%) Objective-C
Qualifications
1 2 (13.33%) Security Cleared
2 1 (6.67%) ISEB
Quality Assurance & Compliance
1 1 (6.67%) QA
Vendors
1 5 (33.33%) Red Hat
2 2 (13.33%) Microsoft
2 2 (13.33%) Oracle