Period
to 20 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Lancashire with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 6 months to 20 November 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
North West > Lancashire
6 months to
20 Nov 2017
Same period 2016 Same period 2015
Rank 20 36 32
Rank change year-on-year +16 -4 +40
Permanent jobs citing TDD 73 50 63
As % of all permanent IT jobs advertised in Lancashire 8.17% 5.57% 6.25%
As % of the Processes & Methodologies category 9.55% 6.33% 7.41%
Number of salaries quoted 69 47 60
Lancashire median annual salary £35,000 £35,000 £40,000
Median salary % change year-on-year - -12.50% -
10th Percentile £29,600 £25,550 £32,500
90th Percentile £45,000 £43,000 £45,000
North West median annual salary £45,000 £42,500 £40,000
% 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 permanent job vacancies advertised in Lancashire with a requirement for process or methodology skills.

All Process and Methodology Skills
Lancashire
Permanent vacancies with a requirement for process or methodology skills 764 790 850
As % of all permanent IT jobs advertised in Lancashire 85.55% 88.07% 84.33%
Number of salaries quoted 614 711 686
Lancashire median annual salary £35,000 £37,500 £35,000
Median salary % change year-on-year -6.67% +7.14% -
10th Percentile £23,750 £23,750 £23,188
90th Percentile £53,375 £52,500 £46,625
North West median annual salary £42,500 £40,000 £40,000
% change year-on-year +6.25% - +1.27%

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
Salary Trend in Lancashire

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing TDD in Lancashire.

Salary trend for TDD in Lancashire

TDD
Salary Histogram in Lancashire

The salary distribution of IT jobs citing TDD in Lancashire over the 6 months to 20 November 2017.

Salary histogram for TDD in Lancashire

TDD
Job Locations in Lancashire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the Lancashire region over the 6 months to 20 November 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Preston +8 38 £35,000 +16.67% 1
Burnley +6 12 £37,500 +36.36% 1
Blackpool +9 8 £35,000 - 3
Blackburn +2 5 £32,500 -18.75% 2
Chorley 0 2 £40,000 +14.29%
Lancaster - 2 £40,000 -
Darwen - 1 £32,500 -
TDD
North West

For the 6 months to 20 November 2017, IT jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Lancashire region with a requirement for TDD.

1 71 (97.26%) .NET
2 61 (83.56%) C#
3 58 (79.45%) ASP.NET
3 58 (79.45%) SQL Server
3 58 (79.45%) MVC
4 56 (76.71%) ASP.NET MVC
5 43 (58.90%) Agile Software Development
6 42 (57.53%) Node.js
7 40 (54.79%) Entity Framework
7 40 (54.79%) .NET Framework
8 37 (50.68%) JavaScript
8 37 (50.68%) RESTful
9 36 (49.32%) BDD
9 36 (49.32%) Twitter Bootstrap
10 35 (47.95%) ASP.NET MVC 5
11 34 (46.58%) ASP.NET Web API
11 34 (46.58%) Web Application Development
12 33 (45.21%) AngularJS
13 31 (42.47%) WCF
14 30 (41.10%) SQL
14 30 (41.10%) SQL Server 2016
15 29 (39.73%) KnockoutJS
16 28 (38.36%) NoSQL
16 28 (38.36%) Git (software)
16 28 (38.36%) Ruby
17 22 (30.14%) Code First Entity Framework
18 19 (26.03%) Games
19 18 (24.66%) Windows
20 16 (21.92%) ASP.NET Web Forms
20 16 (21.92%) Unit Testing

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 1 (1.37%) IIS
Database & Business Intelligence
1 58 (79.45%) SQL Server
2 30 (41.10%) SQL Server 2016
3 28 (38.36%) NoSQL
4 6 (8.22%) SQL Server 2014
5 3 (4.11%) PostgreSQL
6 1 (1.37%) MongoDB
6 1 (1.37%) MySQL
6 1 (1.37%) Oracle Database
6 1 (1.37%) SQL Server 2008
Development Applications
1 28 (38.36%) Git (software)
2 3 (4.11%) Octopus Deploy
2 3 (4.11%) TeamCity
3 2 (2.74%) MSTest
3 2 (2.74%) NUnit
3 2 (2.74%) Selenium
4 1 (1.37%) Team Foundation Server
4 1 (1.37%) Visual Studio
General
1 19 (26.03%) Games
2 6 (8.22%) Manufacturing
3 2 (2.74%) Advertising
3 2 (2.74%) Music Industry
Job Titles
1 71 (97.26%) Developer
2 57 (78.08%) .NET Developer
3 18 (24.66%) ASP.NET Developer
3 18 (24.66%) C# .NET Developer
3 18 (24.66%) C# ASP.NET Developer
3 18 (24.66%) C# Developer
4 17 (23.29%) ASP.NET MVC Developer
5 8 (10.96%) JavaScript Developer
6 7 (9.59%) Front End Developer (Client-Side Developer)
6 7 (9.59%) HTML CSS Developer
6 7 (9.59%) HTML Developer
6 7 (9.59%) Node.js Developer
7 3 (4.11%) Software Developer
8 2 (2.74%) Analyst
8 2 (2.74%) Applications Developer
8 2 (2.74%) Automation Test Analyst
8 2 (2.74%) Test Analyst
9 1 (1.37%) Graduate Developer
9 1 (1.37%) Graduate Software Developer
9 1 (1.37%) SQL Developer
Libraries, Frameworks & Software Standards
1 71 (97.26%) .NET
2 58 (79.45%) ASP.NET
3 56 (76.71%) ASP.NET MVC
4 42 (57.53%) Node.js
5 40 (54.79%) .NET Framework
5 40 (54.79%) Entity Framework
6 37 (50.68%) RESTful
7 36 (49.32%) Twitter Bootstrap
8 35 (47.95%) ASP.NET MVC 5
9 34 (46.58%) ASP.NET Web API
10 33 (45.21%) AngularJS
11 31 (42.47%) WCF
12 29 (39.73%) KnockoutJS
13 22 (30.14%) Code First Entity Framework
14 16 (21.92%) ASP.NET Web Forms
14 16 (21.92%) LINQ
15 15 (20.55%) CSS
15 15 (20.55%) HTML
16 14 (19.18%) jQuery
17 12 (16.44%) HTML5
Miscellaneous
1 4 (5.48%) Digital TV
1 4 (5.48%) Greenfield Project
2 3 (4.11%) Life Science
3 2 (2.74%) Analytical Skills
3 2 (2.74%) Enterprise Software
3 2 (2.74%) Tandem
4 1 (1.37%) Mainframe
Operating Systems
1 18 (24.66%) Windows
2 3 (4.11%) Android
Processes & Methodologies
1 58 (79.45%) MVC
2 43 (58.90%) Agile Software Development
3 36 (49.32%) BDD
4 34 (46.58%) Web Application Development
5 16 (21.92%) Unit Testing
5 16 (21.92%) Web Development
5 16 (21.92%) Workflow
6 7 (9.59%) Front End Development
7 6 (8.22%) Business Intelligence
7 6 (8.22%) Scrum
8 5 (6.85%) Continuous Integration
9 3 (4.11%) Android Development
9 3 (4.11%) Collaborative Working
9 3 (4.11%) Kanban
9 3 (4.11%) Mobile Development
9 3 (4.11%) OO
9 3 (4.11%) SOLID
10 2 (2.74%) SDLC
10 2 (2.74%) Software Engineering
10 2 (2.74%) Test Automation
Programming Languages
1 61 (83.56%) C#
2 37 (50.68%) JavaScript
3 30 (41.10%) SQL
4 28 (38.36%) Ruby
5 12 (16.44%) T-SQL
6 6 (8.22%) VB
6 6 (8.22%) VB.NET
7 4 (5.48%) Java
Vendors
1 4 (5.48%) Microsoft
2 2 (2.74%) Facebook
2 2 (2.74%) Oracle