Period
to 25 September 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 25 September 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Surrey > Guildford
6 months to
25 Sep 2018
Same period 2017 Same period 2016
Rank 43 33 50
Rank change year-on-year -10 +17 -16
Permanent jobs citing TDD 58 59 47
As % of all permanent IT jobs advertised in Guildford 6.69% 7.81% 4.94%
As % of the Processes & Methodologies category 7.60% 8.98% 5.66%
Number of salaries quoted 58 54 42
Guildford median annual salary £39,500 £45,000 £57,500
Median salary % change year-on-year -12.22% -21.74% +27.78%
10th Percentile £30,000 £22,500 £35,000
90th Percentile £61,625 £62,125 £66,250
Surrey median annual salary £47,500 £50,000 £50,000
% change year-on-year -5.00% - -4.76%

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 763 657 830
As % of all permanent IT jobs advertised in Guildford 88.00% 87.02% 87.28%
Number of salaries quoted 619 595 673
Guildford median annual salary £45,000 £42,500 £47,500
Median salary % change year-on-year +5.88% -10.53% +11.76%
10th Percentile £26,200 £26,250 £30,000
90th Percentile £71,250 £63,750 £69,750
Surrey median annual salary £50,000 £48,500 £47,500
% change year-on-year +3.09% +2.11% +5.56%

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 25 September 2018.

Salary histogram for TDD in Guildford

For the 6 months to 25 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 Guildford region with a requirement for TDD.

1 46 (79.31%) Agile Software Development
2 37 (63.79%) MVC
3 36 (62.07%) C#
4 34 (58.62%) .NET
5 31 (53.45%) ASP.NET
6 30 (51.72%) ASP.NET MVC
7 27 (46.55%) JavaScript
8 25 (43.10%) Java
9 24 (41.38%) SQL Server
10 22 (37.93%) Spring
10 22 (37.93%) Greenfield Project
11 21 (36.21%) BDD
12 20 (34.48%) AngularJS
13 19 (32.76%) RESTful
13 19 (32.76%) WCF
14 18 (31.03%) Git (software)
14 18 (31.03%) NoSQL
15 16 (27.59%) Continuous Integration
15 16 (27.59%) HTML
16 14 (24.14%) OO
16 14 (24.14%) ASP.NET Web API
17 13 (22.41%) CSS
17 13 (22.41%) Web Services
17 13 (22.41%) SQL
17 13 (22.41%) Microsoft
17 13 (22.41%) Unit Testing
18 12 (20.69%) Ruby
18 12 (20.69%) jQuery
18 12 (20.69%) Web Application Development
18 12 (20.69%) REST

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 6 (10.34%) JBoss
2 5 (8.62%) Apache
3 4 (6.90%) Apache Spark
3 4 (6.90%) Tomcat
4 3 (5.17%) Confluence
5 2 (3.45%) Cloud Foundry
6 1 (1.72%) CMS
6 1 (1.72%) Elasticsearch
6 1 (1.72%) EPiServer
6 1 (1.72%) GemFire
6 1 (1.72%) OpenStack
6 1 (1.72%) SharePoint
6 1 (1.72%) Sitecore CMS
6 1 (1.72%) Umbraco
Cloud Services
1 6 (10.34%) Amazon AWS
2 4 (6.90%) GitHub
3 3 (5.17%) Microsoft Azure
4 1 (1.72%) Amazon ElastiCache
4 1 (1.72%) Amazon SQS
4 1 (1.72%) PaaS
Communications & Networking
1 3 (5.17%) VoIP
2 2 (3.45%) AMQP
2 2 (3.45%) Internet
3 1 (1.72%) HTTP
Database & Business Intelligence
1 24 (41.38%) SQL Server
2 18 (31.03%) NoSQL
3 11 (18.97%) SQL Server 2016
4 3 (5.17%) Hadoop
4 3 (5.17%) MySQL
4 3 (5.17%) Parquet
5 2 (3.45%) Apache Cassandra
5 2 (3.45%) Apache Hive
5 2 (3.45%) HBase
5 2 (3.45%) SQL Server 2012
6 1 (1.72%) Amazon DynamoDB
6 1 (1.72%) Amazon QuickSight
6 1 (1.72%) Big Data
6 1 (1.72%) Blockchain
6 1 (1.72%) Data Warehouse
6 1 (1.72%) Hazelcast
6 1 (1.72%) OLTP
6 1 (1.72%) Pentaho
6 1 (1.72%) PostgreSQL
6 1 (1.72%) SQL Server Reporting Services
Development Applications
1 18 (31.03%) Git (software)
2 11 (18.97%) Jenkins
3 9 (15.52%) JUnit
4 6 (10.34%) Mockito
5 5 (8.62%) Arquillian
5 5 (8.62%) Maven
6 4 (6.90%) Gradle
6 4 (6.90%) JIRA
6 4 (6.90%) Selenium
7 2 (3.45%) Cucumber
7 2 (3.45%) JMeter
7 2 (3.45%) Octopus Deploy
7 2 (3.45%) SpecFlow
7 2 (3.45%) Visual Studio
8 1 (1.72%) EasyMock
8 1 (1.72%) Eclipse
8 1 (1.72%) Gatling
8 1 (1.72%) JBehave
8 1 (1.72%) Team Foundation Server
General
1 9 (15.52%) Advertising
2 5 (8.62%) Finance
2 5 (8.62%) Telecoms
3 2 (3.45%) Electronics
3 2 (3.45%) Financial Institution
3 2 (3.45%) Manufacturing
3 2 (3.45%) Marketing
4 1 (1.72%) Retail
Job Titles
1 50 (86.21%) Developer
2 33 (56.90%) .NET Developer
3 13 (22.41%) Java Developer
3 13 (22.41%) Senior Developer
4 12 (20.69%) Software Developer
5 10 (17.24%) .NET Software Developer
6 8 (13.79%) Software Engineer
7 7 (12.07%) Java Engineer
7 7 (12.07%) Java Software Engineer
7 7 (12.07%) Senior .NET Developer
8 6 (10.34%) Senior Java Developer
9 4 (6.90%) Junior
10 3 (5.17%) Junior Java Software Engineer
10 3 (5.17%) Junior Software Engineer
10 3 (5.17%) Scala Developer
11 2 (3.45%) Agile Developer
11 2 (3.45%) Angular Developer
11 2 (3.45%) Java Scala Developer
11 2 (3.45%) Senior Agile Developer
11 2 (3.45%) Senior Agile Java Developer
Libraries, Frameworks & Software Standards
1 34 (58.62%) .NET
2 31 (53.45%) ASP.NET
3 30 (51.72%) ASP.NET MVC
4 22 (37.93%) Spring
5 20 (34.48%) AngularJS
6 19 (32.76%) RESTful
6 19 (32.76%) WCF
7 16 (27.59%) HTML
8 14 (24.14%) ASP.NET Web API
9 13 (22.41%) CSS
9 13 (22.41%) Web Services
10 12 (20.69%) jQuery
10 12 (20.69%) REST
11 11 (18.97%) Node.js
12 10 (17.24%) Ajax
13 9 (15.52%) ASP.NET MVC 5
13 9 (15.52%) Spring Boot
13 9 (15.52%) WinForms
13 9 (15.52%) WPF
14 8 (13.79%) JSON
Miscellaneous
1 22 (37.93%) Greenfield Project
2 4 (6.90%) Computer Science
2 4 (6.90%) Linux Command Line
3 3 (5.17%) Enterprise Software
3 3 (5.17%) Virtual Team
4 2 (3.45%) Analytical Skills
4 2 (3.45%) Blog
5 1 (1.72%) Replication
Operating Systems
1 10 (17.24%) Linux
1 10 (17.24%) Windows
2 4 (6.90%) Unix
3 1 (1.72%) Red Hat Enterprise Linux
Processes & Methodologies
1 46 (79.31%) Agile Software Development
2 37 (63.79%) MVC
3 21 (36.21%) BDD
4 16 (27.59%) Continuous Integration
5 14 (24.14%) OO
6 13 (22.41%) Unit Testing
7 12 (20.69%) Microservices
7 12 (20.69%) Web Application Development
8 11 (18.97%) Software Engineering
9 9 (15.52%) Dependency Injection
10 8 (13.79%) Scrum
10 8 (13.79%) Web Development
11 5 (8.62%) OOP
11 5 (8.62%) SDLC
12 4 (6.90%) DevOps
12 4 (6.90%) Load Testing
12 4 (6.90%) Test Automation
13 3 (5.17%) Business Intelligence
13 3 (5.17%) Concurrent Programming
13 3 (5.17%) SOA
Programming Languages
1 36 (62.07%) C#
2 27 (46.55%) JavaScript
3 25 (43.10%) Java
4 13 (22.41%) SQL
5 12 (20.69%) Ruby
6 8 (13.79%) Java 8
7 5 (8.62%) Scala
8 4 (6.90%) Shell Script
9 2 (3.45%) T-SQL
10 1 (1.72%) C++
10 1 (1.72%) Go
10 1 (1.72%) Python
Qualifications
1 11 (18.97%) Degree
2 4 (6.90%) Computer Science Degree
3 2 (3.45%) Oracle Certification
4 1 (1.72%) SC Cleared
4 1 (1.72%) Security Cleared
Quality Assurance & Compliance
1 4 (6.90%) QA
2 3 (5.17%) PA-DSS
2 3 (5.17%) PCI DSS
3 1 (1.72%) SLA
System Software
1 4 (6.90%) Apache ZooKeeper
2 3 (5.17%) Docker
3 2 (3.45%) HDFS
Systems Management
1 3 (5.17%) Ansible
1 3 (5.17%) Hadoop YARN
2 1 (1.72%) Terraform
Vendors
1 13 (22.41%) Microsoft
2 2 (3.45%) Oracle
2 2 (3.45%) SAP
2 2 (3.45%) Sun
3 1 (1.72%) Birst
3 1 (1.72%) Red Hat
3 1 (1.72%) Sitecore