Period
to 23 January 2019

The following table provides summary statistics for permanent job vacancies advertised in Wiltshire 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 23 January 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
South West > Wiltshire
6 months to
23 Jan 2019
Same period 2018 Same period 2017
Rank 39 34 69
Rank change year-on-year -5 +35 -13
Permanent jobs citing TDD 103 106 54
As % of all permanent IT jobs advertised in Wiltshire 5.95% 7.07% 3.33%
As % of the Processes & Methodologies category 6.42% 7.93% 3.78%
Number of salaries quoted 86 91 52
Wiltshire median annual salary £45,000 £50,000 £37,500
Median salary % change year-on-year -10.00% +33.33% -2.60%
10th Percentile £26,000 £35,000 £26,250
90th Percentile £81,250 £60,000 £60,875
South West median annual salary £50,000 £47,000 £44,000
% change year-on-year +6.38% +6.82% +10.00%

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 Wiltshire with a requirement for process or methodology skills.

All Process and Methodology Skills
Wiltshire
Permanent vacancies with a requirement for process or methodology skills 1,604 1,337 1,427
As % of all permanent IT jobs advertised in Wiltshire 92.72% 89.19% 87.92%
Number of salaries quoted 1,309 1,124 1,239
Wiltshire median annual salary £45,000 £42,500 £40,000
Median salary % change year-on-year +5.88% +6.25% -
10th Percentile £28,500 £27,075 £25,000
90th Percentile £67,500 £61,250 £60,000
South West median annual salary £45,000 £42,500 £41,500
% change year-on-year +5.88% +2.41% +3.75%

TDD
Job Vacancy Trend in Wiltshire

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

Job vacancy trend for TDD in Wiltshire

TDD
Salary Trend in Wiltshire

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

Salary trend for TDD in Wiltshire

TDD
Salary Histogram in Wiltshire

The salary distribution of IT jobs citing TDD in Wiltshire over the 6 months to 23 January 2019.

Salary histogram for TDD in Wiltshire

TDD
Job Locations in Wiltshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the Wiltshire region over the 6 months to 23 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Swindon -7 44 £60,000 +41.18% 3
Chippenham -3 26 £27,000 -32.50% 1
Salisbury +1 14 £36,500 -8.75% 6
Warminster +3 4 - - 2
Corsham -12 1 £50,000 +5.26%
Trowbridge - 1 £55,000 - 1
TDD
South West

For the 6 months to 23 January 2019, 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 Wiltshire region with a requirement for TDD.

1 71 (68.93%) Agile Software Development
2 64 (62.14%) BDD
3 49 (47.57%) Scrum
4 40 (38.83%) C#
5 38 (36.89%) Continuous Integration
6 37 (35.92%) Java
7 34 (33.01%) REST
8 33 (32.04%) AngularJS
9 31 (30.10%) .NET
10 30 (29.13%) OO
10 30 (29.13%) Security Cleared
11 29 (28.16%) Microsoft Azure
12 26 (25.24%) Kanban
12 26 (25.24%) JavaScript
13 25 (24.27%) UML
13 25 (24.27%) Finance
13 25 (24.27%) Amazon AWS
14 24 (23.30%) HTML
14 24 (23.30%) ASP.NET
14 24 (23.30%) CSS
14 24 (23.30%) Software Engineering
15 23 (22.33%) Degree
16 21 (20.39%) JSON
16 21 (20.39%) SQL Server
16 21 (20.39%) SC Cleared
16 21 (20.39%) DevOps
16 21 (20.39%) Coaching
17 20 (19.42%) Linux
17 20 (19.42%) Microsoft
18 19 (18.45%) Software Testing

TDD
Co-occurring IT Skills in Wiltshire 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 (11.65%) Elasticsearch
1 12 (11.65%) SharePoint
1 12 (11.65%) SharePoint 2013
2 4 (3.88%) Apache
3 2 (1.94%) JBoss
4 1 (0.97%) BizTalk Server
Business Applications
1 1 (0.97%) Endur
Cloud Services
1 29 (28.16%) Microsoft Azure
2 25 (24.27%) Amazon AWS
3 17 (16.50%) SaaS
4 12 (11.65%) Amazon EC2
4 12 (11.65%) Amazon S3
4 12 (11.65%) Amazon SQS
5 4 (3.88%) Dynamics 365
5 4 (3.88%) iPaaS
6 1 (0.97%) Cloud Computing
6 1 (0.97%) NuGet
Communications & Networking
1 9 (8.74%) Reverse Proxy
2 2 (1.94%) HTTP
3 1 (0.97%) Internet
Database & Business Intelligence
1 21 (20.39%) SQL Server
2 17 (16.50%) MySQL
3 16 (15.53%) PostgreSQL
4 12 (11.65%) Amazon DynamoDB
5 4 (3.88%) RDBMS
5 4 (3.88%) Relational Database
6 3 (2.91%) NoSQL
7 2 (1.94%) Geospatial Data
7 2 (1.94%) GIS
7 2 (1.94%) Redis
7 2 (1.94%) SQL Server 2016
Development Applications
1 19 (18.45%) Selenium
2 18 (17.48%) Subversion
3 15 (14.56%) Cucumber
4 14 (13.59%) Git (software)
5 13 (12.62%) Ant
5 13 (12.62%) Maven
6 12 (11.65%) gulp
6 12 (11.65%) Jasmine
6 12 (11.65%) Karma Test Runner
6 12 (11.65%) Team Foundation Server
7 11 (10.68%) Apache Ivy
8 10 (9.71%) JUnit
9 7 (6.80%) Visual Studio
10 6 (5.83%) Protractor
10 6 (5.83%) WebDriver
11 5 (4.85%) ClearCase
11 5 (4.85%) Eclipse
11 5 (4.85%) Visual Studio Team System
12 4 (3.88%) JIRA
13 3 (2.91%) ReSharper
General
1 25 (24.27%) Finance
2 2 (1.94%) Retail
3 1 (0.97%) Advertising
3 1 (0.97%) Back Office
3 1 (0.97%) Games
3 1 (0.97%) Marketing
Job Titles
1 58 (56.31%) Developer
2 22 (21.36%) C# Developer
3 20 (19.42%) .NET Developer
4 19 (18.45%) C# .NET Developer
4 19 (18.45%) Software Engineer
5 18 (17.48%) Architect
6 16 (15.53%) C++ Software Engineer
7 13 (12.62%) Development Manager
7 13 (12.62%) Software Developer
8 12 (11.65%) Lead .NET Developer
8 12 (11.65%) Lead C# Developer
8 12 (11.65%) Lead Developer
9 11 (10.68%) Java Developer
10 10 (9.71%) PHP Development Manager
11 9 (8.74%) Cloud Architect
11 9 (8.74%) Junior
11 9 (8.74%) Junior Developer
11 9 (8.74%) PHP Architect
11 9 (8.74%) SaaS Architect
12 8 (7.77%) Junior Software Developer
Libraries, Frameworks & Software Standards
1 34 (33.01%) REST
2 33 (32.04%) AngularJS
3 31 (30.10%) .NET
4 24 (23.30%) ASP.NET
4 24 (23.30%) CSS
4 24 (23.30%) HTML
5 21 (20.39%) JSON
6 17 (16.50%) .NET Framework
6 17 (16.50%) Entity Framework
7 16 (15.53%) Qt
7 16 (15.53%) XML
8 15 (14.56%) ASP.NET MVC
9 14 (13.59%) Symfony
10 12 (11.65%) Apache Flex
10 12 (11.65%) CSS3
10 12 (11.65%) HTML5
10 12 (11.65%) Laravel
10 12 (11.65%) Swagger
11 11 (10.68%) WCF
12 10 (9.71%) Node.js
Miscellaneous
1 11 (10.68%) Embedded Systems
1 11 (10.68%) User Experience
2 9 (8.74%) Field-Programmable Gate Array
3 4 (3.88%) Fintech
4 3 (2.91%) Social Media
5 2 (1.94%) Management Information System
5 2 (1.94%) Mobile App
5 2 (1.94%) N-Tier
6 1 (0.97%) Analytical Skills
6 1 (0.97%) Enterprise Software
6 1 (0.97%) Greenfield Project
6 1 (0.97%) SCADA
Operating Systems
1 20 (19.42%) Linux
2 11 (10.68%) Android
2 11 (10.68%) Apple iOS
3 8 (7.77%) Windows
Processes & Methodologies
1 71 (68.93%) Agile Software Development
2 64 (62.14%) BDD
3 49 (47.57%) Scrum
4 38 (36.89%) Continuous Integration
5 30 (29.13%) OO
6 26 (25.24%) Kanban
7 25 (24.27%) UML
8 24 (23.30%) Software Engineering
9 21 (20.39%) Coaching
9 21 (20.39%) DevOps
10 19 (18.45%) MVC
10 19 (18.45%) Software Testing
11 18 (17.48%) Computer Science
12 16 (15.53%) OOD
12 16 (15.53%) Project Management
13 15 (14.56%) Acceptance Criteria
14 14 (13.59%) Mentoring
14 14 (13.59%) SOA
15 13 (12.62%) Test Automation
16 12 (11.65%) SDLC
Programming Languages
1 40 (38.83%) C#
2 37 (35.92%) Java
3 26 (25.24%) JavaScript
4 16 (15.53%) C++
5 15 (14.56%) PHP
6 13 (12.62%) C
7 11 (10.68%) PHP 7
8 7 (6.80%) Java 8
9 6 (5.83%) SQL
10 5 (4.85%) Embedded C
11 3 (2.91%) TypeScript
12 2 (1.94%) Bash Shell
12 2 (1.94%) Python
13 1 (0.97%) F#
13 1 (0.97%) PowerShell
13 1 (0.97%) Ruby
Qualifications
1 30 (29.13%) Security Cleared
2 23 (22.33%) Degree
3 21 (20.39%) SC Cleared
4 12 (11.65%) MCPD
4 12 (11.65%) Microsoft Certification
Quality Assurance & Compliance
1 8 (7.77%) QA
System Software
1 4 (3.88%) Active Directory
2 1 (0.97%) Docker
Systems Management
1 2 (1.94%) Terraform
2 1 (0.97%) Wonderware InTouch
Vendors
1 20 (19.42%) Microsoft
2 12 (11.65%) Zend
3 4 (3.88%) Atlassian
4 3 (2.91%) Fujitsu
4 3 (2.91%) IBM
5 1 (0.97%) Facebook
5 1 (0.97%) TIBCO
5 1 (0.97%) Wonderware