Period
to 24 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Chelmsford 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 24 November 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Essex > Chelmsford
6 months to
24 Nov 2017
Same period 2016 Same period 2015
Rank 18 48 38
Rank change year-on-year +30 -10 -2
Permanent jobs citing TDD 41 1 9
As % of all permanent IT jobs advertised in Chelmsford 11.75% 0.30% 2.75%
As % of the Processes & Methodologies category 13.23% 0.32% 3.47%
Number of salaries quoted 40 1 9
Chelmsford median annual salary £50,000 £65,000 £37,500
Median salary % change year-on-year -23.08% +73.33% -
10th Percentile £32,500 £65,000 £32,500
90th Percentile £52,500 £65,000 £53,750
Essex median annual salary £50,000 £45,000 £42,500
% change year-on-year +11.11% +5.88% -

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 Chelmsford with a requirement for process or methodology skills.

All Process and Methodology Skills
Chelmsford
Permanent vacancies with a requirement for process or methodology skills 310 313 259
As % of all permanent IT jobs advertised in Chelmsford 88.83% 92.60% 79.20%
Number of salaries quoted 287 284 235
Chelmsford median annual salary £47,500 £42,500 £42,500
Median salary % change year-on-year +11.76% - +6.25%
10th Percentile £26,250 £31,250 £22,500
90th Percentile £62,250 £61,250 £66,250
Essex median annual salary £45,000 £45,000 £40,000
% change year-on-year - +12.50% -9.09%

TDD
Job Vacancy Trend in Chelmsford

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

Job vacancy trend for TDD in Chelmsford

TDD
Salary Trend in Chelmsford

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

Salary trend for TDD in Chelmsford

TDD
Salary Histogram in Chelmsford

The salary distribution of IT jobs citing TDD in Chelmsford over the 6 months to 24 November 2017.

Salary histogram for TDD in Chelmsford

For the 6 months to 24 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 Chelmsford region with a requirement for TDD.

1 36 (87.80%) MVC
2 35 (85.37%) Agile Software Development
2 35 (85.37%) Java
3 30 (73.17%) Spring
3 30 (73.17%) SQL
3 30 (73.17%) Spring MVC
4 14 (34.15%) Degree
4 14 (34.15%) Computer Science
4 14 (34.15%) Java SE
4 14 (34.15%) Java EE
5 13 (31.71%) JBoss
6 10 (24.39%) Struts
6 10 (24.39%) Automotive
7 7 (17.07%) JPA
8 6 (14.63%) RESTful
8 6 (14.63%) ASP.NET MVC
8 6 (14.63%) SQL Server 2016
8 6 (14.63%) ASP.NET MVC 5
8 6 (14.63%) Greenfield Project
8 6 (14.63%) Computer Science Degree
8 6 (14.63%) Mathematics
8 6 (14.63%) Unit Testing
8 6 (14.63%) BDD
8 6 (14.63%) OSGi
8 6 (14.63%) KnockoutJS
8 6 (14.63%) Web Application Development
8 6 (14.63%) AngularJS
8 6 (14.63%) Twitter Bootstrap
8 6 (14.63%) ASP.NET Web API
8 6 (14.63%) PHP

TDD
Co-occurring IT Skills in Chelmsford 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 13 (31.71%) JBoss
Communications & Networking
1 6 (14.63%) Internet
Database & Business Intelligence
1 6 (14.63%) SQL Server
1 6 (14.63%) SQL Server 2016
Development Applications
1 1 (2.44%) jMock
1 1 (2.44%) JUnit
1 1 (2.44%) Mockito
General
1 10 (24.39%) Automotive
2 1 (2.44%) Advertising
Job Titles
1 41 (100.00%) Developer
2 34 (82.93%) Java Developer
3 11 (26.83%) Agile Developer
3 11 (26.83%) Agile Java Developer
4 6 (14.63%) .NET Developer
4 6 (14.63%) Internet Developer
4 6 (14.63%) Java Software Developer
4 6 (14.63%) Senior Developer
5 5 (12.20%) Senior Java Developer
6 4 (9.76%) Senior Agile Developer
6 4 (9.76%) Senior Agile Java Developer
6 4 (9.76%) Software Developer
7 3 (7.32%) Graduate
7 3 (7.32%) Graduate Developer
7 3 (7.32%) Graduate Java Developer
8 2 (4.88%) Senior Software Developer
9 1 (2.44%) Senior Java Software Developer
Libraries, Frameworks & Software Standards
1 30 (73.17%) Spring
1 30 (73.17%) Spring MVC
2 14 (34.15%) Java EE
2 14 (34.15%) Java SE
3 10 (24.39%) Struts
4 7 (17.07%) JPA
5 6 (14.63%) .NET
5 6 (14.63%) AngularJS
5 6 (14.63%) ASP.NET
5 6 (14.63%) ASP.NET MVC
5 6 (14.63%) ASP.NET MVC 5
5 6 (14.63%) ASP.NET Web API
5 6 (14.63%) KnockoutJS
5 6 (14.63%) OSGi
5 6 (14.63%) RESTful
5 6 (14.63%) SWT
5 6 (14.63%) Twitter Bootstrap
6 1 (2.44%) Hibernate
6 1 (2.44%) HTML
6 1 (2.44%) J2EE
Miscellaneous
1 14 (34.15%) Computer Science
2 6 (14.63%) Greenfield Project
Operating Systems
1 1 (2.44%) Linux
Processes & Methodologies
1 36 (87.80%) MVC
2 35 (85.37%) Agile Software Development
3 6 (14.63%) BDD
3 6 (14.63%) Mathematics
3 6 (14.63%) Unit Testing
3 6 (14.63%) Web Application Development
4 3 (7.32%) SDLC
4 3 (7.32%) Software Engineering
5 1 (2.44%) Mentoring
5 1 (2.44%) Web Development
Programming Languages
1 35 (85.37%) Java
2 30 (73.17%) SQL
3 6 (14.63%) C#
3 6 (14.63%) PHP
4 1 (2.44%) JavaScript
Qualifications
1 14 (34.15%) Degree
2 6 (14.63%) Computer Science Degree