Period
to 24 June 2018

The following table provides summary statistics for permanent job vacancies advertised in Guildford 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 24 June 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Surrey > Guildford
6 months to
24 Jun 2018
Same period 2017 Same period 2016
Rank 27 36 73
Rank change year-on-year +9 +37 -17
Permanent jobs citing TDD 73 53 47
As % of all permanent IT jobs advertised in Guildford 8.67% 7.99% 3.79%
As % of the Processes & Methodologies category 9.68% 9.64% 4.20%
Number of salaries quoted 73 49 48
Guildford median annual salary £35,000 £50,000 £55,000
Median salary % change year-on-year -30.00% -9.09% +22.22%
10th Percentile £30,000 £33,750 £42,200
90th Percentile £59,500 £60,000 £66,250
Surrey median annual salary £47,500 £52,500 £52,500
% change year-on-year -9.52% - +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 Guildford with a requirement for process or methodology skills.

All Process and Methodology Skills
Guildford
Permanent vacancies with a requirement for process or methodology skills 754 550 1,118
As % of all permanent IT jobs advertised in Guildford 89.55% 82.96% 90.09%
Number of salaries quoted 628 514 764
Guildford median annual salary £45,000 £42,500 £44,000
Median salary % change year-on-year +5.88% -3.41% +3.53%
10th Percentile £27,500 £26,250 £28,000
90th Percentile £70,000 £63,838 £67,500
Surrey median annual salary £47,500 £48,000 £45,000
% change year-on-year -1.04% +6.67% -

TDD
Job Vacancy Trend in Guildford

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

Job vacancy trend for TDD in Guildford

TDD
Salary Trend in Guildford

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

Salary trend for TDD in Guildford

TDD
Salary Histogram in Guildford

The salary distribution of IT jobs citing TDD in Guildford over the 6 months to 24 June 2018.

Salary histogram for TDD in Guildford

For the 6 months to 24 June 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 Guildford region with a requirement for TDD.

1 60 (82.19%) Agile Software Development
2 52 (71.23%) C#
3 51 (69.86%) .NET
4 48 (65.75%) ASP.NET
5 46 (63.01%) MVC
6 41 (56.16%) ASP.NET MVC
7 35 (47.95%) SQL Server
8 34 (46.58%) OO
8 34 (46.58%) RESTful
9 33 (45.21%) BDD
10 32 (43.84%) NoSQL
10 32 (43.84%) WCF
11 31 (42.47%) Greenfield Project
12 30 (41.10%) Git (software)
13 29 (39.73%) ASP.NET Web API
14 28 (38.36%) Web Application Development
14 28 (38.36%) Ruby
15 27 (36.99%) Microsoft
16 26 (35.62%) Advertising
16 26 (35.62%) Node.js
16 26 (35.62%) SQL Server 2016
16 26 (35.62%) ASP.NET MVC 5
17 23 (31.51%) JavaScript
18 22 (30.14%) Web Services
18 22 (30.14%) AngularJS
19 21 (28.77%) Java
20 18 (24.66%) Spring
20 18 (24.66%) Software Engineering
21 17 (23.29%) Degree
22 13 (17.81%) Scrum

TDD
Co-occurring IT Skills in Guildford 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 (5.48%) JBoss
1 4 (5.48%) Tomcat
2 1 (1.37%) CMS
2 1 (1.37%) Confluence
2 1 (1.37%) Elasticsearch
2 1 (1.37%) EPiServer
2 1 (1.37%) SharePoint
2 1 (1.37%) Sitecore CMS
2 1 (1.37%) Umbraco
Cloud Services
1 1 (1.37%) Amazon AWS
1 1 (1.37%) GitHub
1 1 (1.37%) Microsoft Azure
Communications & Networking
1 3 (4.11%) VoIP
2 1 (1.37%) AMQP
2 1 (1.37%) HTTP
Database & Business Intelligence
1 35 (47.95%) SQL Server
2 32 (43.84%) NoSQL
3 26 (35.62%) SQL Server 2016
4 2 (2.74%) MySQL
4 2 (2.74%) PostgreSQL
4 2 (2.74%) SQL Server 2012
5 1 (1.37%) Blockchain
Development Applications
1 30 (41.10%) Git (software)
2 12 (16.44%) Selenium
3 7 (9.59%) JUnit
3 7 (9.59%) Team Foundation Server
4 6 (8.22%) Jenkins
4 6 (8.22%) Mockito
5 5 (6.85%) Arquillian
5 5 (6.85%) Maven
6 2 (2.74%) JIRA
6 2 (2.74%) Visual Studio
7 1 (1.37%) Cucumber
7 1 (1.37%) JBehave
7 1 (1.37%) JMeter
7 1 (1.37%) SpecFlow
General
1 26 (35.62%) Advertising
2 5 (6.85%) Telecoms
3 2 (2.74%) Banking
3 2 (2.74%) Electronics
3 2 (2.74%) Finance
3 2 (2.74%) Manufacturing
3 2 (2.74%) Marketing
4 1 (1.37%) Law
4 1 (1.37%) Retail
Job Titles
1 60 (82.19%) Developer
2 47 (64.38%) .NET Developer
3 15 (20.55%) Senior Developer
4 11 (15.07%) Java Developer
5 9 (12.33%) Software Developer
6 8 (10.96%) .NET Software Developer
6 8 (10.96%) Junior
6 8 (10.96%) Senior Java Developer
6 8 (10.96%) Software Engineer
7 7 (9.59%) Java Engineer
7 7 (9.59%) Java Software Engineer
7 7 (9.59%) Senior .NET Developer
8 6 (8.22%) Test Engineer
9 5 (6.85%) Agile Developer
9 5 (6.85%) Agile Java Developer
9 5 (6.85%) Senior Agile Developer
9 5 (6.85%) Senior Agile Java Developer
9 5 (6.85%) Software Test Engineer
10 4 (5.48%) Junior Software Engineer
10 4 (5.48%) Junior Software Test Engineer
Libraries, Frameworks & Software Standards
1 51 (69.86%) .NET
2 48 (65.75%) ASP.NET
3 41 (56.16%) ASP.NET MVC
4 34 (46.58%) RESTful
5 32 (43.84%) WCF
6 29 (39.73%) ASP.NET Web API
7 26 (35.62%) ASP.NET MVC 5
7 26 (35.62%) Node.js
8 22 (30.14%) AngularJS
8 22 (30.14%) Web Services
9 18 (24.66%) Spring
10 13 (17.81%) REST
11 12 (16.44%) HTML
11 12 (16.44%) jQuery
12 11 (15.07%) Java EE
13 10 (13.70%) Ajax
13 10 (13.70%) XML
14 9 (12.33%) WinForms
14 9 (12.33%) WPF
15 8 (10.96%) CSS
Miscellaneous
1 31 (42.47%) Greenfield Project
2 10 (13.70%) Computer Science
3 8 (10.96%) Enterprise Software
4 5 (6.85%) Fintech
5 2 (2.74%) Blog
6 1 (1.37%) Analytical Skills
Operating Systems
1 10 (13.70%) Windows
2 7 (9.59%) Linux
Processes & Methodologies
1 60 (82.19%) Agile Software Development
2 46 (63.01%) MVC
3 34 (46.58%) OO
4 33 (45.21%) BDD
5 28 (38.36%) Web Application Development
6 18 (24.66%) Software Engineering
7 13 (17.81%) Scrum
8 12 (16.44%) Test Automation
8 12 (16.44%) Unit Testing
9 11 (15.07%) Continuous Integration
10 9 (12.33%) Dependency Injection
10 9 (12.33%) OOP
10 9 (12.33%) Web Development
11 8 (10.96%) Microservices
12 6 (8.22%) Mathematics
13 5 (6.85%) Load Testing
14 4 (5.48%) Data Security
15 3 (4.11%) Concurrent Programming
15 3 (4.11%) SDLC
15 3 (4.11%) SOA
Programming Languages
1 52 (71.23%) C#
2 28 (38.36%) Ruby
3 23 (31.51%) JavaScript
4 21 (28.77%) Java
5 12 (16.44%) SQL
6 9 (12.33%) Java 8
7 5 (6.85%) Scala
8 2 (2.74%) T-SQL
9 1 (1.37%) Go
Qualifications
1 17 (23.29%) Degree
2 10 (13.70%) Computer Science Degree
3 5 (6.85%) Oracle Certification
Quality Assurance & Compliance
1 6 (8.22%) QA
2 3 (4.11%) PA-DSS
2 3 (4.11%) PCI DSS
3 1 (1.37%) SLA
System Software
1 4 (5.48%) Docker
Systems Management
1 2 (2.74%) Ansible
Vendors
1 27 (36.99%) Microsoft
2 5 (6.85%) Oracle
2 5 (6.85%) Sun
3 2 (2.74%) SAP
4 1 (1.37%) Sitecore