Period
to 19 November 2017

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 19 November 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Hertfordshire > Hemel Hempstead
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 18 64 27
Rank change year-on-year +46 -37 +6
Permanent jobs citing TDD 51 3 45
As % of all permanent IT jobs advertised in Hemel Hempstead 12.17% 0.61% 7.28%
As % of the Processes & Methodologies category 15.45% 0.71% 9.11%
Number of salaries quoted 41 3 51
Hemel Hempstead median annual salary £52,500 £37,500 £45,000
Median salary % change year-on-year +40.00% -16.67% -
10th Percentile £28,750 £36,250 £37,500
90th Percentile £58,750 £49,750 £57,500
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 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 330 421 494
As % of all permanent IT jobs advertised in Hemel Hempstead 78.76% 85.92% 79.94%
Number of salaries quoted 302 387 450
Hemel Hempstead median annual salary £47,500 £45,000 £45,000
Median salary % change year-on-year +5.56% - -14.29%
10th Percentile £22,000 £29,600 £25,000
90th Percentile £67,500 £70,000 £65,000
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 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 19 November 2017.

Salary histogram for TDD in Hemel Hempstead

For the 6 months to 19 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 Hemel Hempstead region with a requirement for TDD.

1 51 (100.00%) Agile Software Development
2 44 (86.27%) C#
2 44 (86.27%) .NET
2 44 (86.27%) ASP.NET
3 39 (76.47%) SQL Server
4 38 (74.51%) ASP.NET MVC
4 38 (74.51%) BDD
4 38 (74.51%) ASP.NET Web API
5 37 (72.55%) SQL Server 2016
5 37 (72.55%) ASP.NET MVC 5
5 37 (72.55%) NoSQL
5 37 (72.55%) Node.js
5 37 (72.55%) Web Application Development
5 37 (72.55%) RESTful
5 37 (72.55%) Git (software)
5 37 (72.55%) Ruby
5 37 (72.55%) WCF
5 37 (72.55%) OO
5 37 (72.55%) MVC
6 13 (25.49%) Java
7 12 (23.53%) Windows
8 11 (21.57%) Linux
9 10 (19.61%) Unix
9 10 (19.61%) Business Intelligence
10 8 (15.69%) Scrum
11 7 (13.73%) JavaScript
11 7 (13.73%) HTML
12 6 (11.76%) EDI
12 6 (11.76%) ERP
12 6 (11.76%) CSS

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 6 (11.76%) Confluence
2 1 (1.96%) CMS
2 1 (1.96%) IIS
2 1 (1.96%) JBoss
2 1 (1.96%) WebLogic
2 1 (1.96%) WebSphere
Cloud Services
1 2 (3.92%) SaaS
2 1 (1.96%) Cloud Computing
2 1 (1.96%) GitHub
2 1 (1.96%) Google Play
2 1 (1.96%) Microsoft Azure
Communications & Networking
1 5 (9.80%) VPN
Database & Business Intelligence
1 39 (76.47%) SQL Server
2 37 (72.55%) NoSQL
2 37 (72.55%) SQL Server 2016
3 6 (11.76%) Relational Database
4 1 (1.96%) Crystal Reports
4 1 (1.96%) DB2
4 1 (1.96%) Oracle Database
4 1 (1.96%) Oracle Reports
4 1 (1.96%) SQL Server 2012
4 1 (1.96%) SQL Server Reporting Services
Development Applications
1 37 (72.55%) Git (software)
2 6 (11.76%) JIRA
2 6 (11.76%) Visual Studio
3 5 (9.80%) GCC
4 1 (1.96%) Android Studio
4 1 (1.96%) Team Foundation Server
General
1 5 (9.80%) Finance
1 5 (9.80%) Marketing
2 1 (1.96%) Banking
2 1 (1.96%) Retail
Job Titles
1 45 (88.24%) Developer
2 38 (74.51%) .NET Developer
3 32 (62.75%) .NET Software Developer
4 6 (11.76%) Systems Developer
5 5 (9.80%) Software Engineer
6 2 (3.92%) C# Developer
6 2 (3.92%) Java Developer
7 1 (1.96%) Android Developer
7 1 (1.96%) Architect
7 1 (1.96%) ASP.NET Developer
7 1 (1.96%) C# .NET Developer
7 1 (1.96%) C# ASP.NET Developer
7 1 (1.96%) Performance Architect
7 1 (1.96%) Performance Tester
7 1 (1.96%) PHP Developer
7 1 (1.96%) Senior C# Developer
7 1 (1.96%) Senior Developer
7 1 (1.96%) Tester
7 1 (1.96%) XML Developer
Libraries, Frameworks & Software Standards
1 44 (86.27%) .NET
1 44 (86.27%) ASP.NET
2 38 (74.51%) ASP.NET MVC
2 38 (74.51%) ASP.NET Web API
3 37 (72.55%) ASP.NET MVC 5
3 37 (72.55%) Node.js
3 37 (72.55%) RESTful
3 37 (72.55%) WCF
4 7 (13.73%) HTML
5 6 (11.76%) CSS
5 6 (11.76%) EDI
5 6 (11.76%) XML
6 5 (9.80%) AngularJS
7 4 (7.84%) JavaBeans
8 1 (1.96%) DAO
8 1 (1.96%) ODBC
8 1 (1.96%) WinForms
8 1 (1.96%) XML Schema
8 1 (1.96%) XSD
8 1 (1.96%) XSLT
Miscellaneous
1 2 (3.92%) Mobile App
2 1 (1.96%) Fintech
2 1 (1.96%) User Experience
Operating Systems
1 12 (23.53%) Windows
2 11 (21.57%) Linux
3 10 (19.61%) Unix
4 6 (11.76%) Windows Server
5 2 (3.92%) Android
6 1 (1.96%) Apple iOS
Processes & Methodologies
1 51 (100.00%) Agile Software Development
2 38 (74.51%) BDD
3 37 (72.55%) MVC
3 37 (72.55%) OO
3 37 (72.55%) Web Application Development
4 10 (19.61%) Business Intelligence
5 8 (15.69%) Scrum
6 6 (11.76%) Customer Requirements
6 6 (11.76%) ERP
6 6 (11.76%) Open Source
7 5 (9.80%) CRM
7 5 (9.80%) OOD
7 5 (9.80%) Software Engineering
7 5 (9.80%) Waterfall
8 2 (3.92%) Android Development
8 2 (3.92%) Continuous Integration
8 2 (3.92%) Test Automation
9 1 (1.96%) iOS Development
9 1 (1.96%) Mobile Application Development
9 1 (1.96%) Performance Improvement
Programming Languages
1 44 (86.27%) C#
2 37 (72.55%) Ruby
3 13 (25.49%) Java
4 7 (13.73%) JavaScript
5 5 (9.80%) C
5 5 (9.80%) C++
5 5 (9.80%) PHP
5 5 (9.80%) VB.NET
5 5 (9.80%) VBA
6 2 (3.92%) SQL
7 1 (1.96%) PowerShell
7 1 (1.96%) XAML
Qualifications
1 3 (5.88%) Degree
System Software
1 3 (5.88%) VMware Infrastructure
2 1 (1.96%) Active Directory
Systems Management
1 1 (1.96%) Oracle Enterprise Manager
1 1 (1.96%) WMI
Vendors
1 5 (9.80%) Citrix
1 5 (9.80%) Veeam
1 5 (9.80%) VMware
2 2 (3.92%) Microsoft
2 2 (3.92%) Oracle
3 1 (1.96%) AppDynamics
3 1 (1.96%) Google
3 1 (1.96%) IBM