Period
to 22 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Hertford 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 22 November 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Hertfordshire > Hertford
6 months to
22 Nov 2017
Same period 2016 Same period 2015
Rank 4 - -
Rank change year-on-year - - +32
Permanent jobs citing TDD 27 0 0
As % of all permanent IT jobs advertised in Hertford 24.77% - -
As % of the Processes & Methodologies category 28.13% - -
Number of salaries quoted 27 0 0
Hertford median annual salary £70,000 - -
Hertfordshire median annual salary £47,500 £50,000 £50,000
% change year-on-year -5.00% - +5.26%

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 Hertford with a requirement for process or methodology skills.

All Process and Methodology Skills
Hertford
Permanent vacancies with a requirement for process or methodology skills 96 71 56
As % of all permanent IT jobs advertised in Hertford 88.07% 77.17% 81.16%
Number of salaries quoted 95 70 53
Hertford median annual salary £47,500 £36,250 £67,500
Median salary % change year-on-year +31.03% -46.30% +58.82%
10th Percentile £25,750 £21,000 £27,500
90th Percentile £72,500 £57,625 £89,250
Hertfordshire median annual salary £47,500 £50,000 £47,500
% change year-on-year -5.00% +5.26% +2.15%

TDD
Job Vacancy Trend in Hertford

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

Job vacancy trend for TDD in Hertford

TDD
Salary Trend in Hertford

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

Salary trend for TDD in Hertford

TDD
Salary Histogram in Hertford

The salary distribution of IT jobs citing TDD in Hertford over the 6 months to 22 November 2017.

Salary histogram for TDD in Hertford

For the 6 months to 22 November 2017, IT jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Hertford region with a requirement for TDD.

1 27 (100.00%) BDD
2 23 (85.19%) Agile Software Development
3 20 (74.07%) Java
4 16 (59.26%) SOA
4 16 (59.26%) Continuous Integration
4 16 (59.26%) Jenkins
5 15 (55.56%) Line Management
5 15 (55.56%) Amazon AWS
5 15 (55.56%) Web Services
5 15 (55.56%) Scrum
6 11 (40.74%) SaaS
7 8 (29.63%) JavaScript
8 7 (25.93%) .NET
8 7 (25.93%) SQL Server
8 7 (25.93%) ASP.NET
8 7 (25.93%) MVC
8 7 (25.93%) Games
8 7 (25.93%) C#
8 7 (25.93%) Git (software)
8 7 (25.93%) NoSQL
8 7 (25.93%) RESTful
8 7 (25.93%) ASP.NET MVC
8 7 (25.93%) WCF
8 7 (25.93%) Ruby
8 7 (25.93%) .NET Framework
8 7 (25.93%) SQL Server 2016
8 7 (25.93%) ASP.NET MVC 5
8 7 (25.93%) Code First Entity Framework
8 7 (25.93%) Twitter Bootstrap
8 7 (25.93%) ASP.NET Web API

TDD
Co-occurring IT Skills in Hertford 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:

Cloud Services
1 15 (55.56%) Amazon AWS
2 11 (40.74%) SaaS
Database & Business Intelligence
1 7 (25.93%) NoSQL
1 7 (25.93%) SQL Server
1 7 (25.93%) SQL Server 2016
Development Applications
1 16 (59.26%) Jenkins
2 7 (25.93%) Git (software)
3 4 (14.81%) Selenium
3 4 (14.81%) SoapUI
3 4 (14.81%) WebDriver
General
1 7 (25.93%) Games
Job Titles
1 15 (55.56%) Java Team Leader
1 15 (55.56%) Team Leader
2 12 (44.44%) Development Team Leader
2 12 (44.44%) Java Development Team Leader
3 8 (29.63%) Developer
4 7 (25.93%) .NET Developer
5 4 (14.81%) QA Engineer
6 1 (3.70%) AWS Developer
6 1 (3.70%) Java Developer
Libraries, Frameworks & Software Standards
1 15 (55.56%) Web Services
2 7 (25.93%) .NET
2 7 (25.93%) .NET Framework
2 7 (25.93%) AngularJS
2 7 (25.93%) ASP.NET
2 7 (25.93%) ASP.NET MVC
2 7 (25.93%) ASP.NET MVC 5
2 7 (25.93%) ASP.NET Web API
2 7 (25.93%) Code First Entity Framework
2 7 (25.93%) Entity Framework
2 7 (25.93%) KnockoutJS
2 7 (25.93%) Node.js
2 7 (25.93%) RESTful
2 7 (25.93%) Twitter Bootstrap
2 7 (25.93%) WCF
3 4 (14.81%) SOAP
Processes & Methodologies
1 27 (100.00%) BDD
2 23 (85.19%) Agile Software Development
3 16 (59.26%) Continuous Integration
3 16 (59.26%) SOA
4 15 (55.56%) Line Management
4 15 (55.56%) Scrum
5 7 (25.93%) MVC
5 7 (25.93%) Web Application Development
6 6 (22.22%) Mentoring
7 4 (14.81%) Manual Testing
7 4 (14.81%) Software Testing
7 4 (14.81%) Test Automation
7 4 (14.81%) Test Strategy
8 1 (3.70%) Continuous Delivery
8 1 (3.70%) Continuous Deployment
8 1 (3.70%) Customer Requirements
Programming Languages
1 20 (74.07%) Java
2 8 (29.63%) JavaScript
3 7 (25.93%) C#
3 7 (25.93%) Ruby
Quality Assurance & Compliance
1 4 (14.81%) QA
System Software
1 1 (3.70%) Docker