Period
to 14 August 2018

The following table provides summary statistics for permanent job vacancies advertised in Bath 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 14 August 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Somerset > Bath
6 months to
14 Aug 2018
Same period 2017 Same period 2016
Rank 30 48 15
Rank change year-on-year +18 -33 +34
Permanent jobs citing TDD 28 43 77
As % of all permanent IT jobs advertised in Bath 5.98% 5.08% 11.88%
As % of the Processes & Methodologies category 6.41% 5.39% 12.90%
Number of salaries quoted 16 43 77
Bath median annual salary £46,250 £37,500 £41,500
Median salary % change year-on-year +23.33% -9.64% +18.57%
10th Percentile £33,750 £32,650 £35,250
90th Percentile £70,000 £55,000 £68,500
Somerset median annual salary £50,000 £44,000 £41,500
% change year-on-year +13.64% +6.02% -2.35%

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 Bath with a requirement for process or methodology skills.

All Process and Methodology Skills
Bath
Permanent vacancies with a requirement for process or methodology skills 437 798 597
As % of all permanent IT jobs advertised in Bath 93.38% 94.33% 92.13%
Number of salaries quoted 386 602 577
Bath median annual salary £40,500 £42,500 £40,000
Median salary % change year-on-year -4.71% +6.25% +6.67%
10th Percentile £27,161 £27,500 £30,000
90th Percentile £60,000 £68,750 £57,500
Somerset median annual salary £40,500 £40,000 £40,000
% change year-on-year +1.25% - +9.59%

TDD
Job Vacancy Trend in Bath

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

Job vacancy trend for TDD in Bath

TDD
Salary Trend in Bath

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

Salary trend for TDD in Bath

TDD
Salary Histogram in Bath

The salary distribution of IT jobs citing TDD in Bath over the 6 months to 14 August 2018.

Salary histogram for TDD in Bath

For the 6 months to 14 August 2018, IT 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 permanent job ads across the Bath region with a requirement for TDD.

1 25 (89.29%) JavaScript
2 19 (67.86%) AngularJS
3 17 (60.71%) Kanban
4 15 (53.57%) Git (software)
4 15 (53.57%) TypeScript
5 14 (50.00%) Django
5 14 (50.00%) Linux
5 14 (50.00%) Python
6 13 (46.43%) MySQL
6 13 (46.43%) PostgreSQL
6 13 (46.43%) Redis
7 12 (42.86%) nginx
7 12 (42.86%) D3.js
7 12 (42.86%) Elasticsearch
7 12 (42.86%) LEMP Stack
7 12 (42.86%) Collaborative Working
8 11 (39.29%) .NET
9 10 (35.71%) MVC
10 9 (32.14%) Agile Software Development
10 9 (32.14%) C#
11 8 (28.57%) Scrum
12 6 (21.43%) SQL
12 6 (21.43%) ASP.NET
12 6 (21.43%) CSS
12 6 (21.43%) ASP.NET MVC
12 6 (21.43%) SOLID
12 6 (21.43%) Microservices
13 5 (17.86%) Vue.js
13 5 (17.86%) Node.js
13 5 (17.86%) .NET Framework

TDD
Co-occurring IT Skills in Bath 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 12 (42.86%) Elasticsearch
1 12 (42.86%) nginx
Cloud Services
1 4 (14.29%) Microsoft Azure
2 1 (3.57%) Amazon AWS
2 1 (3.57%) AWS Lambda
2 1 (3.57%) Cloud Computing
2 1 (3.57%) Serverless
Database & Business Intelligence
1 13 (46.43%) MySQL
1 13 (46.43%) PostgreSQL
1 13 (46.43%) Redis
2 4 (14.29%) NoSQL
2 4 (14.29%) SQL Server
3 2 (7.14%) SQL Server 2016
4 1 (3.57%) Relational Database
Development Applications
1 15 (53.57%) Git (software)
2 3 (10.71%) NCrunch
2 3 (10.71%) ReSharper
3 2 (7.14%) Visual Studio Team System
4 1 (3.57%) Mocha
4 1 (3.57%) Oracle Forms
4 1 (3.57%) Selenium
4 1 (3.57%) Sinon.JS
General
1 1 (3.57%) Banking
1 1 (3.57%) Finance
1 1 (3.57%) Music Industry
Job Titles
1 26 (92.86%) Developer
2 15 (53.57%) JavaScript Developer
3 13 (46.43%) Python Developer
4 10 (35.71%) .NET Developer
5 3 (10.71%) .NET Software Developer
5 3 (10.71%) C# .NET Developer
5 3 (10.71%) C# Developer
5 3 (10.71%) Software Developer
6 2 (7.14%) ASP.NET MVC Developer
6 2 (7.14%) Lead .NET Developer
6 2 (7.14%) Lead C# Developer
6 2 (7.14%) Lead Developer
7 1 (3.57%) Front End Developer (Client-Side Developer)
7 1 (3.57%) Front End Web Developer (Client-Side Developer)
7 1 (3.57%) Full Stack Developer
7 1 (3.57%) JavaScript Engineer
7 1 (3.57%) Python Engineer
7 1 (3.57%) Web Developer
Libraries, Frameworks & Software Standards
1 19 (67.86%) AngularJS
2 14 (50.00%) Django
3 12 (42.86%) D3.js
3 12 (42.86%) LEMP Stack
4 11 (39.29%) .NET
5 6 (21.43%) ASP.NET
5 6 (21.43%) ASP.NET MVC
5 6 (21.43%) CSS
6 5 (17.86%) .NET Framework
6 5 (17.86%) HTML
6 5 (17.86%) Node.js
6 5 (17.86%) Vue.js
7 4 (14.29%) .NET Core
7 4 (14.29%) jQuery
7 4 (14.29%) RESTful
8 3 (10.71%) CSS3
8 3 (10.71%) Entity Framework
9 2 (7.14%) Express
9 2 (7.14%) KnockoutJS
9 2 (7.14%) Twitter Bootstrap
Miscellaneous
1 4 (14.29%) Greenfield Project
2 2 (7.14%) Self-Motivation
3 1 (3.57%) Blog
3 1 (3.57%) Mobile App
Operating Systems
1 14 (50.00%) Linux
2 2 (7.14%) Windows
Processes & Methodologies
1 17 (60.71%) Kanban
2 12 (42.86%) Collaborative Working
3 10 (35.71%) MVC
4 9 (32.14%) Agile Software Development
5 8 (28.57%) Scrum
6 6 (21.43%) Microservices
6 6 (21.43%) SOLID
7 4 (14.29%) BDD
7 4 (14.29%) Continuous Integration
8 3 (10.71%) OO
9 2 (7.14%) Customer Requirements
9 2 (7.14%) Mentoring
9 2 (7.14%) Problem-Solving
9 2 (7.14%) SDLC
9 2 (7.14%) Web Application Development
10 1 (3.57%) Analytics
10 1 (3.57%) Front End Development
10 1 (3.57%) High Availability
10 1 (3.57%) Mobile Application Development
10 1 (3.57%) Risk Analytics
Programming Languages
1 25 (89.29%) JavaScript
2 15 (53.57%) TypeScript
3 14 (50.00%) Python
4 9 (32.14%) C#
5 6 (21.43%) SQL
6 2 (7.14%) ES6
7 1 (3.57%) Java
7 1 (3.57%) Ruby
7 1 (3.57%) T-SQL
System Software
1 1 (3.57%) Docker
Vendors
1 1 (3.57%) Microsoft
1 1 (3.57%) Oracle
1 1 (3.57%) SAP