Period
to 16 January 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 16 January 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Hertfordshire > Hemel Hempstead
6 months to
16 Jan 2018
Same period 2017 Same period 2016
Rank 16 44 46
Rank change year-on-year +28 +2 +7
Permanent jobs citing TDD 75 18 20
As % of all permanent IT jobs advertised in Hemel Hempstead 17.86% 3.97% 3.63%
As % of the Processes & Methodologies category 21.61% 5.00% 4.36%
Number of salaries quoted 65 18 20
Hemel Hempstead median annual salary £52,500 £37,500 £52,500
Median salary % change year-on-year +40.00% -28.57% +16.67%
10th Percentile £28,750 £23,750 £42,500
90th Percentile £58,750 £46,250 £68,125
Hertfordshire median annual salary £50,000 £45,000 £52,500
% change year-on-year +11.11% -14.29% +10.53%

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 347 360 459
As % of all permanent IT jobs advertised in Hemel Hempstead 82.62% 79.47% 83.30%
Number of salaries quoted 305 338 396
Hemel Hempstead median annual salary £50,000 £42,500 £45,000
Median salary % change year-on-year +17.65% -5.56% -10.00%
10th Percentile £22,000 £27,125 £25,750
90th Percentile £65,000 £70,000 £65,000
Hertfordshire median annual salary £50,000 £50,000 £47,500
% change year-on-year - +5.26% -

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 16 January 2018.

Salary histogram for TDD in Hemel Hempstead

For the 6 months to 16 January 2018, 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 75 (100.00%) Agile Software Development
2 67 (89.33%) C#
2 67 (89.33%) .NET
2 67 (89.33%) ASP.NET
3 54 (72.00%) SQL Server
4 53 (70.67%) ASP.NET MVC
4 53 (70.67%) BDD
4 53 (70.67%) ASP.NET Web API
5 52 (69.33%) Node.js
5 52 (69.33%) Ruby
5 52 (69.33%) WCF
5 52 (69.33%) Git (software)
5 52 (69.33%) MVC
6 51 (68.00%) RESTful
6 51 (68.00%) Web Application Development
6 51 (68.00%) NoSQL
6 51 (68.00%) SQL Server 2016
6 51 (68.00%) ASP.NET MVC 5
7 40 (53.33%) OO
8 29 (38.67%) Business Intelligence
9 20 (26.67%) Windows
9 20 (26.67%) Java
10 19 (25.33%) Linux
11 18 (24.00%) Unix
12 17 (22.67%) JavaScript
13 16 (21.33%) HTML
13 16 (21.33%) Scrum
14 15 (20.00%) CSS
15 14 (18.67%) Finance
15 14 (18.67%) EDI

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 14 (18.67%) Confluence
2 1 (1.33%) Elasticsearch
2 1 (1.33%) IIS
2 1 (1.33%) JBoss
2 1 (1.33%) SharePoint
2 1 (1.33%) WebLogic
2 1 (1.33%) WebSphere
Cloud Services
1 1 (1.33%) Amazon AWS
1 1 (1.33%) Amazon ElastiCache
1 1 (1.33%) Amazon S3
1 1 (1.33%) Amazon SQS
1 1 (1.33%) AWS CloudFormation
1 1 (1.33%) AWS Elastic Beanstalk
1 1 (1.33%) AWS Lambda
1 1 (1.33%) Cloud Computing
1 1 (1.33%) CloudFront
1 1 (1.33%) GitHub
1 1 (1.33%) Heroku
1 1 (1.33%) Microsoft Azure
1 1 (1.33%) Route 53
1 1 (1.33%) SaaS
1 1 (1.33%) Serverless
Communications & Networking
1 13 (17.33%) VPN
Database & Business Intelligence
1 54 (72.00%) SQL Server
2 51 (68.00%) NoSQL
2 51 (68.00%) SQL Server 2016
3 6 (8.00%) Relational Database
4 2 (2.67%) SQL Server 2012
5 1 (1.33%) Amazon DynamoDB
5 1 (1.33%) Amazon RDS
5 1 (1.33%) Crystal Reports
5 1 (1.33%) DB2
5 1 (1.33%) Oracle Database
5 1 (1.33%) Oracle Reports
5 1 (1.33%) PostgreSQL
5 1 (1.33%) SQL Server Reporting Services
Development Applications
1 52 (69.33%) Git (software)
2 14 (18.67%) JIRA
3 7 (9.33%) Visual Studio
4 5 (6.67%) GCC
5 2 (2.67%) Team Foundation Server
6 1 (1.33%) Mocha
6 1 (1.33%) webpack
General
1 14 (18.67%) Finance
2 13 (17.33%) Marketing
3 1 (1.33%) Automotive
3 1 (1.33%) Banking
Job Titles
1 67 (89.33%) Developer
2 53 (70.67%) .NET Developer
3 35 (46.67%) .NET Software Developer
4 13 (17.33%) Systems Developer
5 9 (12.00%) Java Developer
6 5 (6.67%) Software Engineer
7 3 (4.00%) C# Developer
8 2 (2.67%) ASP.NET Developer
8 2 (2.67%) C# .NET Developer
8 2 (2.67%) C# ASP.NET Developer
8 2 (2.67%) Senior Developer
9 1 (1.33%) CRM Developer
9 1 (1.33%) EDI Developer
9 1 (1.33%) ERP Developer
9 1 (1.33%) Full Stack Developer
9 1 (1.33%) Performance Architect
9 1 (1.33%) PHP Developer
9 1 (1.33%) Scrum Master
9 1 (1.33%) Senior Full Stack Developer
9 1 (1.33%) XML Developer
Libraries, Frameworks & Software Standards
1 67 (89.33%) .NET
1 67 (89.33%) ASP.NET
2 53 (70.67%) ASP.NET MVC
2 53 (70.67%) ASP.NET Web API
3 52 (69.33%) Node.js
3 52 (69.33%) WCF
4 51 (68.00%) ASP.NET MVC 5
4 51 (68.00%) RESTful
5 16 (21.33%) HTML
6 15 (20.00%) CSS
7 14 (18.67%) EDI
8 13 (17.33%) AngularJS
9 9 (12.00%) XML
10 7 (9.33%) JavaBeans
11 2 (2.67%) Web Services
12 1 (1.33%) ODBC
12 1 (1.33%) WinForms
12 1 (1.33%) XML Schema
12 1 (1.33%) XSD
12 1 (1.33%) XSLT
Miscellaneous
1 1 (1.33%) Enterprise Software
1 1 (1.33%) Fintech
1 1 (1.33%) Mobile App
1 1 (1.33%) User Experience
Operating Systems
1 20 (26.67%) Windows
2 19 (25.33%) Linux
3 18 (24.00%) Unix
4 14 (18.67%) Windows Server
5 1 (1.33%) Android
5 1 (1.33%) Apple iOS
Processes & Methodologies
1 75 (100.00%) Agile Software Development
2 53 (70.67%) BDD
3 52 (69.33%) MVC
4 51 (68.00%) Web Application Development
5 40 (53.33%) OO
6 29 (38.67%) Business Intelligence
7 16 (21.33%) Scrum
8 14 (18.67%) Customer Requirements
8 14 (18.67%) ERP
8 14 (18.67%) Open Source
9 13 (17.33%) CRM
10 5 (6.67%) OOD
10 5 (6.67%) Software Engineering
10 5 (6.67%) Waterfall
11 3 (4.00%) E-Commerce
12 2 (2.67%) Test Automation
13 1 (1.33%) Benchmarking
13 1 (1.33%) Enterprise Architecture
13 1 (1.33%) Project Management
13 1 (1.33%) UML
Programming Languages
1 67 (89.33%) C#
2 52 (69.33%) Ruby
3 20 (26.67%) Java
4 17 (22.67%) JavaScript
5 13 (17.33%) PHP
5 13 (17.33%) VB.NET
5 13 (17.33%) VBA
6 5 (6.67%) C
6 5 (6.67%) C++
7 3 (4.00%) SQL
8 1 (1.33%) ES6
8 1 (1.33%) GraphQL
8 1 (1.33%) PowerShell
8 1 (1.33%) XAML
Qualifications
1 4 (5.33%) Degree
System Software
1 3 (4.00%) VMware Infrastructure
2 1 (1.33%) Active Directory
Systems Management
1 1 (1.33%) Oracle Enterprise Manager
1 1 (1.33%) WMI
Vendors
1 13 (17.33%) Citrix
2 12 (16.00%) Veeam
2 12 (16.00%) VMware
3 3 (4.00%) Microsoft
3 3 (4.00%) Oracle
4 1 (1.33%) AppDynamics
4 1 (1.33%) IBM