Period
to 20 June 2018

The following table provides summary statistics for permanent job vacancies advertised in Hemel Hempstead 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 20 June 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Hertfordshire > Hemel Hempstead
6 months to
20 Jun 2018
Same period 2017 Same period 2016
Rank 18 25 65
Rank change year-on-year +7 +40 -11
Permanent jobs citing TDD 56 39 1
As % of all permanent IT jobs advertised in Hemel Hempstead 13.30% 9.33% 0.17%
As % of the Processes & Methodologies category 17.34% 12.15% 0.21%
Number of salaries quoted 55 39 1
Hemel Hempstead median annual salary £45,000 £52,500 £45,000
Median salary % change year-on-year -14.29% +16.67% -
10th Percentile £28,750 £32,750 £42,500
90th Percentile £58,750 £58,750 £47,500
Hertfordshire median annual salary £47,500 £45,000 £55,000
% change year-on-year +5.56% -18.18% +10.00%

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 Hemel Hempstead with a requirement for process or methodology skills.

All Process and Methodology Skills
Hemel Hempstead
Permanent vacancies with a requirement for process or methodology skills 323 321 475
As % of all permanent IT jobs advertised in Hemel Hempstead 76.72% 76.79% 81.20%
Number of salaries quoted 279 289 367
Hemel Hempstead median annual salary £42,500 £45,000 £45,000
Median salary % change year-on-year -5.56% - +1.12%
10th Percentile £23,700 £27,450 £29,000
90th Percentile £58,750 £69,000 £65,000
Hertfordshire median annual salary £50,000 £47,500 £47,500
% change year-on-year +5.26% - +5.56%

TDD
Job Vacancy Trend in Hemel Hempstead

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

Job vacancy trend for TDD in Hemel Hempstead

TDD
Salary Trend in Hemel Hempstead

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

Salary trend for TDD in Hemel Hempstead

TDD
Salary Histogram in Hemel Hempstead

The salary distribution of IT jobs citing TDD in Hemel Hempstead over the 6 months to 20 June 2018.

Salary histogram for TDD in Hemel Hempstead

For the 6 months to 20 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 Hemel Hempstead region with a requirement for TDD.

1 56 (100.00%) C#
1 56 (100.00%) .NET
2 55 (98.21%) ASP.NET
2 55 (98.21%) Agile Software Development
3 40 (71.43%) MVC
4 39 (69.64%) ASP.NET MVC
5 34 (60.71%) WCF
6 30 (53.57%) CSS
6 30 (53.57%) HTML
6 30 (53.57%) JavaScript
7 29 (51.79%) Scrum
7 29 (51.79%) Business Intelligence
8 27 (48.21%) BDD
8 27 (48.21%) ASP.NET Web API
9 26 (46.43%) Web Application Development
9 26 (46.43%) SQL Server 2016
9 26 (46.43%) ASP.NET MVC 5
9 26 (46.43%) RESTful
9 26 (46.43%) SQL Server
10 22 (39.29%) Git (software)
10 22 (39.29%) AngularJS
11 21 (37.50%) NoSQL
11 21 (37.50%) Node.js
11 21 (37.50%) Ruby
12 16 (28.57%) Marketing
12 16 (28.57%) Citrix
12 16 (28.57%) JIRA
12 16 (28.57%) Open Source
12 16 (28.57%) Confluence
12 16 (28.57%) CRM

TDD
Co-occurring IT Skills in Hemel Hempstead 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 16 (28.57%) Confluence
Cloud Services
1 1 (1.79%) Microsoft Azure
Communications & Networking
1 16 (28.57%) VPN
Database & Business Intelligence
1 26 (46.43%) SQL Server
1 26 (46.43%) SQL Server 2016
2 21 (37.50%) NoSQL
3 1 (1.79%) Redis
Development Applications
1 22 (39.29%) Git (software)
2 16 (28.57%) JIRA
3 14 (25.00%) Visual Studio
4 13 (23.21%) NUnit
4 13 (23.21%) StyleCop
5 1 (1.79%) MSTest
5 1 (1.79%) SpecFlow
5 1 (1.79%) Visual Studio Team System
General
1 16 (28.57%) Finance
1 16 (28.57%) Marketing
Job Titles
1 55 (98.21%) Developer
2 37 (66.07%) .NET Developer
3 15 (26.79%) Java Developer
3 15 (26.79%) Systems Developer
4 13 (23.21%) C# Developer
5 12 (21.43%) CRM Developer
5 12 (21.43%) EDI Developer
5 12 (21.43%) ERP Developer
6 10 (17.86%) ASP.NET Developer
6 10 (17.86%) C# .NET Developer
6 10 (17.86%) C# ASP.NET Developer
7 8 (14.29%) .NET Software Developer
8 1 (1.79%) IT Manager
Libraries, Frameworks & Software Standards
1 56 (100.00%) .NET
2 55 (98.21%) ASP.NET
3 39 (69.64%) ASP.NET MVC
4 34 (60.71%) WCF
5 30 (53.57%) CSS
5 30 (53.57%) HTML
6 27 (48.21%) ASP.NET Web API
7 26 (46.43%) ASP.NET MVC 5
7 26 (46.43%) RESTful
8 22 (39.29%) AngularJS
9 21 (37.50%) Node.js
10 16 (28.57%) EDI
11 13 (23.21%) .NET Framework
11 13 (23.21%) Entity Framework
11 13 (23.21%) JavaBeans
11 13 (23.21%) jQuery
11 13 (23.21%) LINQ
11 13 (23.21%) Web Services
11 13 (23.21%) XML
12 5 (8.93%) KnockoutJS
Operating Systems
1 16 (28.57%) Linux
1 16 (28.57%) Unix
1 16 (28.57%) Windows
1 16 (28.57%) Windows Server
2 1 (1.79%) Android
2 1 (1.79%) Apple iOS
Processes & Methodologies
1 55 (98.21%) Agile Software Development
2 40 (71.43%) MVC
3 29 (51.79%) Business Intelligence
3 29 (51.79%) Scrum
4 27 (48.21%) BDD
5 26 (46.43%) Web Application Development
6 16 (28.57%) CRM
6 16 (28.57%) Customer Requirements
6 16 (28.57%) ERP
6 16 (28.57%) Open Source
7 12 (21.43%) E-Commerce
8 8 (14.29%) OO
9 1 (1.79%) CQRS
9 1 (1.79%) Domain-Driven Design
9 1 (1.79%) Enterprise Architecture
9 1 (1.79%) Problem-Solving
9 1 (1.79%) SOLID
9 1 (1.79%) Unit Testing
Programming Languages
1 56 (100.00%) C#
2 30 (53.57%) JavaScript
3 21 (37.50%) Ruby
4 16 (28.57%) Java
4 16 (28.57%) PHP
4 16 (28.57%) VB.NET
4 16 (28.57%) VBA
5 1 (1.79%) TypeScript
Qualifications
1 1 (1.79%) Degree
Vendors
1 16 (28.57%) Citrix
2 15 (26.79%) Veeam
2 15 (26.79%) VMware
3 1 (1.79%) Microsoft
3 1 (1.79%) Oracle