Period
to 24 March 2019

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 24 March 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Hertfordshire > Watford
6 months to
24 Mar 2019
Same period 2018 Same period 2017
Rank 28 28 20
Rank change year-on-year 0 -8 +58
Permanent jobs citing TDD 69 77 112
As % of all permanent IT jobs advertised in Watford 7.86% 7.71% 10.11%
As % of the Processes & Methodologies category 9.21% 8.80% 10.89%
Number of salaries quoted 64 76 102
Watford median annual salary £57,500 £47,500 £44,250
Median salary % change year-on-year +21.05% +7.34% -
10th Percentile £35,750 £35,750 £32,500
90th Percentile £68,750 £62,500 £66,250
Hertfordshire median annual salary £52,500 £47,500 £45,000
% change year-on-year +10.53% +5.56% -18.18%

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 749 875 1,028
As % of all permanent IT jobs advertised in Watford 85.31% 87.59% 92.78%
Number of salaries quoted 569 778 864
Watford median annual salary £50,000 £50,250 £52,000
Median salary % change year-on-year -0.50% -3.37% +15.56%
10th Percentile £26,250 £29,855 £28,000
90th Percentile £77,500 £67,500 £75,000
Hertfordshire median annual salary £50,000 £50,000 £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 24 March 2019.

Salary histogram for TDD in Watford

For the 6 months to 24 March 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 Watford region with a requirement for TDD.

1 58 (84.06%) Agile Software Development
2 53 (76.81%) SQL
3 45 (65.22%) BDD
4 42 (60.87%) Test Automation
5 38 (55.07%) C#
6 34 (49.28%) SQL Server
6 34 (49.28%) JIRA
7 32 (46.38%) XML
8 31 (44.93%) Scaled Agile Framework
9 30 (43.48%) Migration
9 30 (43.48%) ETL
9 30 (43.48%) Data Migration
10 26 (37.68%) Problem-Solving
10 26 (37.68%) Analytical Skills
11 25 (36.23%) PL/SQL
11 25 (36.23%) Oracle
12 24 (34.78%) MVC
13 22 (31.88%) JavaScript
13 22 (31.88%) T-SQL
14 21 (30.43%) PostgreSQL
14 21 (30.43%) Reference Data
14 21 (30.43%) Data Mapping
14 21 (30.43%) SC Cleared
14 21 (30.43%) Security Cleared
14 21 (30.43%) JSON
14 21 (30.43%) Subversion
14 21 (30.43%) SQL Server Reporting Services
14 21 (30.43%) SQL Server Integration Services
14 21 (30.43%) SQL Server 2016
14 21 (30.43%) Data Quality

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 8 (11.59%) Tomcat
2 7 (10.14%) WebLogic
3 4 (5.80%) Oracle Service Bus
3 4 (5.80%) Oracle SOA Suite
3 4 (5.80%) SharePoint Server
4 3 (4.35%) WebSphere
5 2 (2.90%) Adobe Experience Manager
5 2 (2.90%) Apache Solr
5 2 (2.90%) CoreMedia CMS
6 1 (1.45%) JBoss
Business Applications
1 2 (2.90%) Fredhopper
1 2 (2.90%) Magento
1 2 (2.90%) SAP Hybris
Cloud Services
1 2 (2.90%) Algolia
1 2 (2.90%) Amazon AWS
1 2 (2.90%) Cloud Computing
1 2 (2.90%) Google Cloud Platform
1 2 (2.90%) Microsoft Azure
1 2 (2.90%) Serverless
Communications & Networking
1 4 (5.80%) SSL
Database & Business Intelligence
1 34 (49.28%) SQL Server
2 21 (30.43%) PostgreSQL
2 21 (30.43%) SQL Server 2016
2 21 (30.43%) SQL Server Integration Services
2 21 (30.43%) SQL Server Reporting Services
3 8 (11.59%) RDBMS
3 8 (11.59%) Relational Database
4 4 (5.80%) Oracle Database
4 4 (5.80%) Oracle Database 12c
5 2 (2.90%) NoSQL
6 1 (1.45%) SQL Server 2012
6 1 (1.45%) SQL Server 2014
Development Applications
1 34 (49.28%) JIRA
2 21 (30.43%) Subversion
3 13 (18.84%) Git (software)
4 9 (13.04%) Zephyr
5 8 (11.59%) Maven
6 6 (8.70%) Cucumber
7 5 (7.25%) Selenium
8 4 (5.80%) PostCSS
8 4 (5.80%) webpack
9 2 (2.90%) git-flow
9 2 (2.90%) JBehave
9 2 (2.90%) JUnit
9 2 (2.90%) Mockito
9 2 (2.90%) Team Foundation Server
10 1 (1.45%) Gradle
10 1 (1.45%) Jenkins
10 1 (1.45%) JMeter
10 1 (1.45%) LoadRunner
10 1 (1.45%) Robot Framework
10 1 (1.45%) WebDriver
General
1 8 (11.59%) Finance
2 7 (10.14%) Retail
Job Titles
1 51 (73.91%) Developer
2 21 (30.43%) Data Migration Developer
2 21 (30.43%) ETL Developer
2 21 (30.43%) Oracle Developer
2 21 (30.43%) Oracle ETL Developer
2 21 (30.43%) PostgreSQL Developer
2 21 (30.43%) SQL Developer
2 21 (30.43%) SQL Server Developer
3 17 (24.64%) C# Developer
4 11 (15.94%) .NET Developer
4 11 (15.94%) C# .NET Developer
4 11 (15.94%) QA Tester
4 11 (15.94%) Tester
5 10 (14.49%) Analyst
5 10 (14.49%) Angular Developer
5 10 (14.49%) Full Stack Developer
6 9 (13.04%) Data Analyst
6 9 (13.04%) Java Developer
6 9 (13.04%) Senior Developer
6 9 (13.04%) Test Analyst
Libraries, Frameworks & Software Standards
1 32 (46.38%) XML
2 21 (30.43%) JSON
3 17 (24.64%) .NET
4 16 (23.19%) ASP.NET
4 16 (23.19%) CSS
5 15 (21.74%) RESTful
6 13 (18.84%) Spring
7 12 (17.39%) AngularJS
8 10 (14.49%) .NET Core
8 10 (14.49%) Angular 2
8 10 (14.49%) HTML
8 10 (14.49%) Java EE
9 9 (13.04%) J2EE
9 9 (13.04%) JDBC
9 9 (13.04%) ODBC
9 9 (13.04%) Spring Boot
10 7 (10.14%) DOM
10 7 (10.14%) Java SE
10 7 (10.14%) JAXB
10 7 (10.14%) SAX
Miscellaneous
1 26 (37.68%) Analytical Skills
2 21 (30.43%) Reference Data
3 16 (23.19%) Greenfield Project
4 4 (5.80%) Fintech
4 4 (5.80%) User Experience
5 2 (2.90%) Enterprise Software
Operating Systems
1 5 (7.25%) Windows
2 4 (5.80%) Unix
3 2 (2.90%) Linux
4 1 (1.45%) Windows Server
Processes & Methodologies
1 58 (84.06%) Agile Software Development
2 45 (65.22%) BDD
3 42 (60.87%) Test Automation
4 31 (44.93%) Scaled Agile Framework
5 30 (43.48%) Data Migration
5 30 (43.48%) ETL
5 30 (43.48%) Migration
6 26 (37.68%) Problem-Solving
7 24 (34.78%) MVC
8 21 (30.43%) Data Mapping
9 18 (26.09%) Scrum
10 15 (21.74%) Software Engineering
11 14 (20.29%) OO
11 14 (20.29%) Test Scripting
12 12 (17.39%) Data Modelling
12 12 (17.39%) Microservices
13 10 (14.49%) Digital Transformation Programme
14 9 (13.04%) Front End Development
14 9 (13.04%) Scenario Testing
15 8 (11.59%) Web Application Development
Programming Languages
1 53 (76.81%) SQL
2 38 (55.07%) C#
3 25 (36.23%) PL/SQL
4 22 (31.88%) JavaScript
4 22 (31.88%) T-SQL
5 17 (24.64%) Java
6 4 (5.80%) ES6
7 3 (4.35%) Java 8
8 1 (1.45%) ANSI SQL
8 1 (1.45%) Shell Script
Qualifications
1 21 (30.43%) SC Cleared
1 21 (30.43%) Security Cleared
2 9 (13.04%) ISTQB
2 9 (13.04%) ISTQB Foundation Certification
3 2 (2.90%) Degree
Quality Assurance & Compliance
1 21 (30.43%) Data Quality
2 15 (21.74%) QA
Vendors
1 25 (36.23%) Oracle
2 21 (30.43%) Talend
3 13 (18.84%) Microsoft
4 3 (4.35%) Xamarin
5 2 (2.90%) Adobe
5 2 (2.90%) Elastic Path
5 2 (2.90%) Google
5 2 (2.90%) hybris
5 2 (2.90%) IBM
5 2 (2.90%) Salesforce.com
5 2 (2.90%) SAP
6 1 (1.45%) Sybase