Period
to 19 October 2018

The following table provides summary statistics for permanent job vacancies advertised in Watford 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 19 October 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Hertfordshire > Watford
6 months to
19 Oct 2018
Same period 2017 Same period 2016
Rank 34 20 54
Rank change year-on-year -14 +34 +24
Permanent jobs citing TDD 77 108 38
As % of all permanent IT jobs advertised in Watford 8.10% 10.62% 3.92%
As % of the Processes & Methodologies category 9.11% 11.99% 4.38%
Number of salaries quoted 76 92 34
Watford median annual salary £54,000 £45,000 £53,750
Median salary % change year-on-year +20.00% -16.28% +19.44%
10th Percentile £35,750 £33,750 £41,975
90th Percentile £65,000 £69,625 £72,500
Hertfordshire median annual salary £50,000 £48,750 £47,500
% change year-on-year +2.56% +2.63% -

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 Watford with a requirement for process or methodology skills.

All Process and Methodology Skills
Watford
Permanent vacancies with a requirement for process or methodology skills 845 901 868
As % of all permanent IT jobs advertised in Watford 88.85% 88.59% 89.58%
Number of salaries quoted 702 725 741
Watford median annual salary £50,000 £50,000 £50,000
10th Percentile £27,500 £29,900 £27,500
90th Percentile £80,000 £71,250 £75,000
Hertfordshire median annual salary £50,000 £47,500 £47,500
% change year-on-year +5.26% - +5.56%

TDD
Job Vacancy Trend in Watford

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

Job vacancy trend for TDD in Watford

TDD
Salary Trend in Watford

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

Salary trend for TDD in Watford

TDD
Salary Histogram in Watford

The salary distribution of IT jobs citing TDD in Watford over the 6 months to 19 October 2018.

Salary histogram for TDD in Watford

For the 6 months to 19 October 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 Watford region with a requirement for TDD.

1 61 (79.22%) Agile Software Development
2 50 (64.94%) SQL
3 48 (62.34%) BDD
4 35 (45.45%) C#
5 34 (44.16%) JavaScript
5 34 (44.16%) XML
6 33 (42.86%) SQL Server
6 33 (42.86%) Test Automation
7 30 (38.96%) Problem-Solving
8 29 (37.66%) Analytical Skills
8 29 (37.66%) Oracle
8 29 (37.66%) PL/SQL
9 24 (31.17%) Java
9 24 (31.17%) Scaled Agile Framework
10 23 (29.87%) MVC
10 23 (29.87%) Migration
10 23 (29.87%) Data Migration
10 23 (29.87%) SC Cleared
10 23 (29.87%) Security Cleared
11 21 (27.27%) Reference Data
11 21 (27.27%) Data Mapping
11 21 (27.27%) RESTful
11 21 (27.27%) Data Quality
12 20 (25.97%) Scrum
13 19 (24.68%) CSS
14 17 (22.08%) Finance
14 17 (22.08%) Retail
15 16 (20.78%) Spring
15 16 (20.78%) ETL
16 15 (19.48%) PostgreSQL

TDD
Co-occurring IT Skills in Watford 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 10 (12.99%) Tomcat
2 8 (10.39%) Oracle Service Bus
2 8 (10.39%) Oracle SOA Suite
2 8 (10.39%) SharePoint Server
3 6 (7.79%) JBoss
3 6 (7.79%) WebSphere
4 3 (3.90%) WebLogic
5 1 (1.30%) Confluence
Communications & Networking
1 8 (10.39%) SSL
Database & Business Intelligence
1 33 (42.86%) SQL Server
2 15 (19.48%) PostgreSQL
2 15 (19.48%) SQL Server Reporting Services
3 13 (16.88%) SQL Server 2016
4 11 (14.29%) RDBMS
4 11 (14.29%) Relational Database
5 9 (11.69%) SQL Server Integration Services
6 8 (10.39%) Oracle Database
6 8 (10.39%) Oracle Database 12c
7 6 (7.79%) SQL Server 2012
7 6 (7.79%) SQL Server 2014
8 4 (5.19%) NoSQL
Development Applications
1 14 (18.18%) Git (software)
2 13 (16.88%) JIRA
3 9 (11.69%) Subversion
4 7 (9.09%) Maven
5 3 (3.90%) Cucumber
5 3 (3.90%) Selenium
6 2 (2.60%) PostCSS
6 2 (2.60%) WebDriver
6 2 (2.60%) webpack
6 2 (2.60%) Zephyr
7 1 (1.30%) Capybara
7 1 (1.30%) Jenkins
7 1 (1.30%) JUnit
7 1 (1.30%) PhantomJS
7 1 (1.30%) Robot Framework
7 1 (1.30%) SoapUI
General
1 17 (22.08%) Finance
1 17 (22.08%) Retail
2 3 (3.90%) Games
3 1 (1.30%) Automotive
3 1 (1.30%) Law
Job Titles
1 58 (75.32%) Developer
2 21 (27.27%) Data Migration Developer
3 15 (19.48%) ETL Developer
3 15 (19.48%) Oracle Developer
3 15 (19.48%) Oracle ETL Developer
3 15 (19.48%) PostgreSQL Developer
3 15 (19.48%) SQL Developer
3 15 (19.48%) SQL Server Developer
4 12 (15.58%) .NET Developer
5 11 (14.29%) C# Developer
6 9 (11.69%) Analyst
6 9 (11.69%) C# .NET Developer
6 9 (11.69%) UI Developer
7 8 (10.39%) Angular Developer
7 8 (10.39%) Full Stack Developer
8 7 (9.09%) Java Developer
8 7 (9.09%) Senior Developer
9 6 (7.79%) SQL Analyst
9 6 (7.79%) Systems Analyst
10 5 (6.49%) Software Engineer
Libraries, Frameworks & Software Standards
1 34 (44.16%) XML
2 21 (27.27%) RESTful
3 19 (24.68%) CSS
4 16 (20.78%) Spring
5 14 (18.18%) .NET
5 14 (18.18%) ASP.NET
6 13 (16.88%) J2EE
7 11 (14.29%) Java EE
7 11 (14.29%) Sass
8 10 (12.99%) HTML
9 9 (11.69%) AngularJS
9 9 (11.69%) Hibernate
9 9 (11.69%) JSON
9 9 (11.69%) Web Services
10 8 (10.39%) .NET Core
10 8 (10.39%) Angular 2
10 8 (10.39%) HTML5
10 8 (10.39%) JSP
10 8 (10.39%) SOAP
10 8 (10.39%) XSD
Miscellaneous
1 29 (37.66%) Analytical Skills
2 21 (27.27%) Reference Data
3 13 (16.88%) User Experience
4 8 (10.39%) Fintech
4 8 (10.39%) Greenfield Project
Operating Systems
1 8 (10.39%) Windows
2 7 (9.09%) Linux
2 7 (9.09%) Unix
3 6 (7.79%) Windows Server
4 2 (2.60%) Android
Processes & Methodologies
1 61 (79.22%) Agile Software Development
2 48 (62.34%) BDD
3 33 (42.86%) Test Automation
4 30 (38.96%) Problem-Solving
5 24 (31.17%) Scaled Agile Framework
6 23 (29.87%) Data Migration
6 23 (29.87%) Migration
6 23 (29.87%) MVC
7 21 (27.27%) Data Mapping
8 20 (25.97%) Scrum
9 16 (20.78%) ETL
10 15 (19.48%) Software Engineering
10 15 (19.48%) Web Application Development
11 14 (18.18%) Continuous Integration
11 14 (18.18%) User Stories
12 13 (16.88%) OO
13 11 (14.29%) SEO
14 9 (11.69%) Microservices
14 9 (11.69%) Wireframes
15 8 (10.39%) Digital Transformation Programme
Programming Languages
1 50 (64.94%) SQL
2 35 (45.45%) C#
3 34 (44.16%) JavaScript
4 29 (37.66%) PL/SQL
5 24 (31.17%) Java
6 15 (19.48%) T-SQL
7 11 (14.29%) ES6
8 7 (9.09%) Shell Script
9 6 (7.79%) ANSI SQL
10 5 (6.49%) Ruby
11 2 (2.60%) Kotlin
12 1 (1.30%) Groovy
12 1 (1.30%) Java 8
Qualifications
1 23 (29.87%) SC Cleared
1 23 (29.87%) Security Cleared
2 2 (2.60%) ISTQB
2 2 (2.60%) ISTQB Foundation Certification
Quality Assurance & Compliance
1 21 (27.27%) Data Quality
2 11 (14.29%) QA
Systems Management
1 1 (1.30%) Ansible
Vendors
1 29 (37.66%) Oracle
2 9 (11.69%) Microsoft
2 9 (11.69%) Talend
3 6 (7.79%) Sybase
4 1 (1.30%) Atlassian
4 1 (1.30%) IBM