Period
to 21 September 2018

The following table provides summary statistics for permanent job vacancies advertised in Gloucester 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 21 September 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Gloucestershire > Gloucester
6 months to
21 Sep 2018
Same period 2017 Same period 2016
Rank 24 45 62
Rank change year-on-year +21 +17 +2
Permanent jobs citing TDD 22 10 6
As % of all permanent IT jobs advertised in Gloucester 8.12% 2.65% 1.11%
As % of the Processes & Methodologies category 8.76% 3.00% 1.24%
Number of salaries quoted 23 8 5
Gloucester median annual salary £55,000 £41,500 £55,000
Median salary % change year-on-year +32.53% -24.55% +10.00%
10th Percentile £38,750 £32,325 £40,350
90th Percentile £70,000 £47,500 £59,000
Gloucestershire median annual salary £50,000 £45,000 £47,500
% change year-on-year +11.11% -5.26% -5.00%

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 Gloucester with a requirement for process or methodology skills.

All Process and Methodology Skills
Gloucester
Permanent vacancies with a requirement for process or methodology skills 251 333 485
As % of all permanent IT jobs advertised in Gloucester 92.62% 88.33% 89.81%
Number of salaries quoted 170 295 379
Gloucester median annual salary £47,500 £42,500 £41,500
Median salary % change year-on-year +11.76% +2.41% +3.75%
10th Percentile £25,000 £29,300 £23,500
90th Percentile £65,000 £62,500 £60,000
Gloucestershire median annual salary £47,500 £42,500 £44,500
% change year-on-year +11.76% -4.49% +9.88%

TDD
Job Vacancy Trend in Gloucester

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

Job vacancy trend for TDD in Gloucester

TDD
Salary Trend in Gloucester

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

Salary trend for TDD in Gloucester

TDD
Salary Histogram in Gloucester

The salary distribution of IT jobs citing TDD in Gloucester over the 6 months to 21 September 2018.

Salary histogram for TDD in Gloucester

For the 6 months to 21 September 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 Gloucester region with a requirement for TDD.

1 17 (77.27%) Java
2 14 (63.64%) C#
3 13 (59.09%) Python
3 13 (59.09%) Security Cleared
4 12 (54.55%) AngularJS
4 12 (54.55%) C++
4 12 (54.55%) Agile Software Development
4 12 (54.55%) Software Engineering
5 11 (50.00%) JavaScript
5 11 (50.00%) DV Cleared
5 11 (50.00%) Continuous Integration
6 9 (40.91%) SC Cleared
6 9 (40.91%) Ruby
7 8 (36.36%) SQL
8 7 (31.82%) Unit Testing
8 7 (31.82%) Node.js
9 6 (27.27%) Web Application Development
9 6 (27.27%) Microsoft Azure
9 6 (27.27%) Linux
9 6 (27.27%) Django
10 5 (22.73%) Artificial Intelligence
10 5 (22.73%) Microsoft
10 5 (22.73%) MVC
10 5 (22.73%) .NET
10 5 (22.73%) SQL Server
10 5 (22.73%) ASP.NET
10 5 (22.73%) RESTful
10 5 (22.73%) Multithreading
10 5 (22.73%) Kanban
10 5 (22.73%) KnockoutJS

TDD
Co-occurring IT Skills in Gloucester 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 (18.18%) Elasticsearch
2 2 (9.09%) Apache Pig
2 2 (9.09%) Apache Spark
Cloud Services
1 6 (27.27%) Microsoft Azure
2 2 (9.09%) Amazon AWS
Database & Business Intelligence
1 5 (22.73%) SQL Server
1 5 (22.73%) SQL Server 2016
2 4 (18.18%) MongoDB
3 2 (9.09%) Amazon Redshift
3 2 (9.09%) Apache Hive
3 2 (9.09%) Big Data
3 2 (9.09%) Hadoop
3 2 (9.09%) Neo4j
3 2 (9.09%) Presto
Development Applications
1 4 (18.18%) TeamCity
2 3 (13.64%) Maven
3 2 (9.09%) Subversion
4 1 (4.55%) JUnit
4 1 (4.55%) TestNG
General
1 4 (18.18%) Electronics
1 4 (18.18%) Finance
1 4 (18.18%) Manufacturing
1 4 (18.18%) Marketing
1 4 (18.18%) Telecoms
2 1 (4.55%) Law
2 1 (4.55%) Retail
Job Titles
1 14 (63.64%) Developer
2 7 (31.82%) Software Engineer
3 5 (22.73%) .NET Developer
3 5 (22.73%) Java Developer
4 4 (18.18%) Messaging Developer
5 3 (13.64%) DV Cleared Software Engineer
5 3 (13.64%) JavaScript Developer
5 3 (13.64%) Python Developer
5 3 (13.64%) SC Cleared Software Engineer
5 3 (13.64%) Software Developer
6 2 (9.09%) C# Developer
6 2 (9.09%) Data Scientist
6 2 (9.09%) Senior Software Engineer
7 1 (4.55%) C# Software Engineer
7 1 (4.55%) C++ Software Developer
7 1 (4.55%) C++ Software Engineer
7 1 (4.55%) Java Software Engineer
7 1 (4.55%) Senior Developer
7 1 (4.55%) Senior Java Developer
7 1 (4.55%) Systems Developer
Libraries, Frameworks & Software Standards
1 12 (54.55%) AngularJS
2 7 (31.82%) Node.js
3 6 (27.27%) Django
4 5 (22.73%) .NET
4 5 (22.73%) ASP.NET
4 5 (22.73%) ASP.NET MVC
4 5 (22.73%) ASP.NET Web API
4 5 (22.73%) KnockoutJS
4 5 (22.73%) RESTful
4 5 (22.73%) Twitter Bootstrap
5 4 (18.18%) ASP.NET MVC 5
5 4 (18.18%) MSMQ
5 4 (18.18%) RabbitMQ
5 4 (18.18%) WPF
6 3 (13.64%) JSON
6 3 (13.64%) Vue.js
6 3 (13.64%) Web Services
6 3 (13.64%) XML
7 2 (9.09%) Hibernate
7 2 (9.09%) React
Miscellaneous
1 3 (13.64%) Industry 4.0
2 2 (9.09%) Algorithms
3 1 (4.55%) Greenfield Project
3 1 (4.55%) Self-Motivation
Operating Systems
1 6 (27.27%) Linux
2 3 (13.64%) Android
2 3 (13.64%) Apple iOS
2 3 (13.64%) Unix
2 3 (13.64%) Windows
Processes & Methodologies
1 12 (54.55%) Agile Software Development
1 12 (54.55%) Software Engineering
2 11 (50.00%) Continuous Integration
3 7 (31.82%) Unit Testing
4 6 (27.27%) Web Application Development
5 5 (22.73%) Analytics
5 5 (22.73%) Artificial Intelligence
5 5 (22.73%) Dependency Injection
5 5 (22.73%) Kanban
5 5 (22.73%) Multithreading
5 5 (22.73%) MVC
6 4 (18.18%) BDD
6 4 (18.18%) Business Intelligence
6 4 (18.18%) Digital Marketing
6 4 (18.18%) OO
6 4 (18.18%) Open Source
6 4 (18.18%) Problem-Solving
6 4 (18.18%) Programme Management
7 3 (13.64%) Business Development
7 3 (13.64%) Data Analytics
Programming Languages
1 17 (77.27%) Java
2 14 (63.64%) C#
3 13 (59.09%) Python
4 12 (54.55%) C++
5 11 (50.00%) JavaScript
6 9 (40.91%) Ruby
7 8 (36.36%) SQL
8 4 (18.18%) F#
9 3 (13.64%) Bash Shell
9 3 (13.64%) C
9 3 (13.64%) Go
9 3 (13.64%) Perl
9 3 (13.64%) PowerShell
10 2 (9.09%) Java 8
11 1 (4.55%) Rust
Qualifications
1 13 (59.09%) Security Cleared
2 11 (50.00%) DV Cleared
3 9 (40.91%) SC Cleared
4 1 (4.55%) Degree
System Software
1 3 (13.64%) Docker
Systems Management
1 4 (18.18%) Business Desktop Deployment
1 4 (18.18%) Kibana
1 4 (18.18%) WSUS
2 1 (4.55%) Ansible
Vendors
1 5 (22.73%) Microsoft
2 4 (18.18%) SAP