The following table provides summary statistics for permanent job vacancies advertised in St Albans with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 3 months to 28 June 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Hertfordshire / St Albans
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 21 16 10
Rank change year-on-year -5 -6  
Permanent jobs citing TDD 21 29 78
As % of all permanent IT jobs advertised in St Albans 14.79% 23.39% 36.97%
As % of the Processes & Methodologies category 17.95% 25.00% 42.39%
Number of salaries quoted 21 29 78
Median salary £65,000 £65,000 £55,000
Median salary % change year-on-year - +18.18%  
90% offered a salary of more than £48,750 £31,000 £32,500
10% offered a salary of more than £72,500 £72,500 £72,500
UK excluding London median salary £45,000 £44,000 £42,500
% change year-on-year +2.27% +3.52%  

TDD is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in St Albans with a requirement for process and methodology skills.

Process & Methodology Skills
St Albans
Permanent job vacancies with a requirement for process and methodology skills 117 116 184
As % of all permanent IT job vacancies advertised in St Albans 82.39% 93.55% 87.20%
Number of salaries quoted 504 575 966
Median salary £52,500 £47,500 £55,000
Median salary % change year-on-year +10.52% -13.63%  
90% offered a salary of more than £31,250 £31,000 £32,500
10% offered a salary of more than £72,500 £67,500 £72,500
UK excluding London median salary £45,000 £45,000 £43,000
% change year-on-year - +4.65%  

TDD
Job Vacancy Trend in St Albans

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

Job vacancy trend for TDD in St Albans

TDD
Salary Trend in St Albans

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

Salary trend for TDD in St Albans

TDD
Salary Histogram in St Albans

The salary distribution of IT jobs citing TDD in St Albans over the 3 months to 28 June 2017.

Salary histogram for TDD in St Albans

For the 6 months to 28 June 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 St Albans region with a requirement for TDD.

1 56 (100.00%) .NET
1 56 (100.00%) MVC
2 55 (98.21%) ASP.NET
2 55 (98.21%) Agile Software Development
3 53 (94.64%) C#
4 44 (78.57%) SQL Server
4 44 (78.57%) ASP.NET MVC
5 38 (67.86%) OO
6 35 (62.50%) ASP.NET Web API
7 33 (58.93%) WCF
8 32 (57.14%) ASP.NET MVC 5
9 30 (53.57%) BDD
10 29 (51.79%) AngularJS
11 28 (50.00%) JavaScript
12 27 (48.21%) BBC
12 27 (48.21%) Sony
12 27 (48.21%) Apple
12 27 (48.21%) Yahoo!
12 27 (48.21%) Google
12 27 (48.21%) Ruby
12 27 (48.21%) Web Application Development
12 27 (48.21%) Social Media
12 27 (48.21%) Facebook
12 27 (48.21%) SQL Server 2014
12 27 (48.21%) NoSQL
12 27 (48.21%) Node.js
12 27 (48.21%) Git (software)
12 27 (48.21%) RESTful
13 26 (46.43%) Scrum
14 16 (28.57%) .NET Framework

TDD
Co-occurring IT Skills in St Albans 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 1 (1.79%) CMS
1 1 (1.79%) Elasticsearch
1 1 (1.79%) Umbraco
Cloud Services
1 9 (16.07%) Microsoft Azure
2 2 (3.57%) Amazon AWS
Database & Business Intelligence
1 44 (78.57%) SQL Server
2 27 (48.21%) NoSQL
2 27 (48.21%) SQL Server 2014
3 9 (16.07%) SQL Server Integration Services
3 9 (16.07%) SQL Server Reporting Services
4 5 (8.93%) Apache Cassandra
5 4 (7.14%) Data Warehouse
6 3 (5.36%) Redis
6 3 (5.36%) Relational Database
6 3 (5.36%) SQL Server 2016
Development Applications
1 27 (48.21%) Git (software)
2 10 (17.86%) TeamCity
3 8 (14.29%) Octopus Deploy
4 6 (10.71%) NUnit
5 5 (8.93%) ReSharper
General
1 2 (3.57%) Finance
1 2 (3.57%) Marketing
2 1 (1.79%) Retail
Job Titles
1 55 (98.21%) Developer
2 46 (82.14%) .NET Developer
3 27 (48.21%) Social Media Developer
4 16 (28.57%) Senior Developer
5 13 (23.21%) C# Developer
6 10 (17.86%) C# .NET Developer
6 10 (17.86%) Software Developer
7 9 (16.07%) ASP.NET MVC Developer
8 8 (14.29%) ASP.NET Developer
8 8 (14.29%) C# ASP.NET Developer
9 7 (12.50%) Senior .NET Developer
9 7 (12.50%) Senior C# Developer
9 7 (12.50%) Senior Software Developer
10 6 (10.71%) .NET Software Developer
11 5 (8.93%) Angular Developer
12 4 (7.14%) Azure Developer
12 4 (7.14%) Senior C# .NET Developer
13 3 (5.36%) Senior ASP.NET Developer
13 3 (5.36%) Senior C# ASP.NET Developer
14 2 (3.57%) Junior .NET Developer
Libraries, Frameworks & Software Standards
1 56 (100.00%) .NET
2 55 (98.21%) ASP.NET
3 44 (78.57%) ASP.NET MVC
4 35 (62.50%) ASP.NET Web API
5 33 (58.93%) WCF
6 32 (57.14%) ASP.NET MVC 5
7 29 (51.79%) AngularJS
8 27 (48.21%) Node.js
8 27 (48.21%) RESTful
9 16 (28.57%) .NET Framework
9 16 (28.57%) Entity Framework
10 7 (12.50%) CSS
10 7 (12.50%) HTML
10 7 (12.50%) jQuery
11 6 (10.71%) Kafka
11 6 (10.71%) RabbitMQ
11 6 (10.71%) SignalR
12 5 (8.93%) CSS3
12 5 (8.93%) HTML5
12 5 (8.93%) WebSockets
Miscellaneous
1 27 (48.21%) BBC
1 27 (48.21%) Social Media
2 12 (21.43%) Greenfield Project
Operating Systems
1 9 (16.07%) Windows
Processes & Methodologies
1 56 (100.00%) MVC
2 55 (98.21%) Agile Software Development
3 38 (67.86%) OO
4 30 (53.57%) BDD
5 27 (48.21%) Web Application Development
6 26 (46.43%) Scrum
7 9 (16.07%) OOP
8 7 (12.50%) Web Design
9 6 (10.71%) Low Latency
9 6 (10.71%) Multithreading
10 5 (8.93%) OOD
10 5 (8.93%) SOLID
11 3 (5.36%) Coaching
11 3 (5.36%) Data Analysis
11 3 (5.36%) Mathematics
11 3 (5.36%) Open Source
11 3 (5.36%) Open Source Development
11 3 (5.36%) SDLC
11 3 (5.36%) Software Engineering
12 2 (3.57%) Unit Testing
Programming Languages
1 53 (94.64%) C#
2 28 (50.00%) JavaScript
3 27 (48.21%) Ruby
4 15 (26.79%) SQL
4 15 (26.79%) T-SQL
5 2 (3.57%) PowerShell
5 2 (3.57%) Python
5 2 (3.57%) TypeScript
Qualifications
1 4 (7.14%) Degree
Vendors
1 27 (48.21%) Apple
1 27 (48.21%) Facebook
1 27 (48.21%) Google
1 27 (48.21%) Sony
1 27 (48.21%) Yahoo!
2 5 (8.93%) Microsoft
St. Albans, Hertfordshire
Dawson & Walsh
Salary: £40000 - £80000 per annum + Bonus + Pension + Benefits
Posted: 2 days ago
St. Albans, Hertfordshire
Dawson & Walsh
Salary: £30000 - £40000 per annum + Bonus + Pension + Benefits
Posted: 2 days ago
St. Albans, Hertfordshire
Understanding Recruitment
Salary: £50000 - £70000 per annum + benefits
Posted: 3 days ago
St. Albans, Hertfordshire
Resource Group
Salary: £50,000-£80,000 + Bonus & Benefits
Posted: 6 days ago
St. Albans, Hertfordshire
Net Recruit.co.uk Ltd
Salary: £22,000 - £29,000 DOE + Benefits
Posted: 6 days ago
St. Albans, Hertfordshire
Resource Group
Salary: £50,000-£80,000 + Bonus & Benefits
Posted: 6 days ago