Period
to 15 February 2019

The following table provides summary statistics for permanent job vacancies advertised in Essex 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 15 February 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
6 months to
15 Feb 2019
Same period 2018 Same period 2017
Rank 43 18 61
Rank change year-on-year -25 +43 +5
Permanent jobs citing TDD 52 166 75
As % of all permanent IT jobs advertised in Essex 5.21% 11.67% 3.83%
As % of the Processes & Methodologies category 6.44% 13.44% 4.19%
Number of salaries quoted 49 153 42
Essex median annual salary £50,000 £50,000 £45,000
Median salary % change year-on-year - +11.11% +12.50%
10th Percentile £27,050 £32,500 £32,500
90th Percentile £67,500 £70,000 £65,000
East of England median annual salary £52,500 £50,000 £45,000
% change year-on-year +5.00% +11.11% -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 Essex with a requirement for process or methodology skills.

All Process and Methodology Skills
Essex
Permanent vacancies with a requirement for process or methodology skills 807 1,235 1,788
As % of all permanent IT jobs advertised in Essex 80.86% 86.85% 91.22%
Number of salaries quoted 602 1,044 1,322
Essex median annual salary £42,500 £47,500 £47,500
Median salary % change year-on-year -10.53% - +11.76%
10th Percentile £24,000 £27,500 £30,000
90th Percentile £70,000 £70,000 £71,250
East of England median annual salary £47,500 £49,000 £45,000
% change year-on-year -3.06% +8.89% -

TDD
Job Vacancy Trend in Essex

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

Job vacancy trend for TDD in Essex

TDD
Salary Trend in Essex

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

Salary trend for TDD in Essex

TDD
Salary Histogram in Essex

The salary distribution of IT jobs citing TDD in Essex over the 6 months to 15 February 2019.

Salary histogram for TDD in Essex

TDD
Job Locations in Essex

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the Essex region over the 6 months to 15 February 2019. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Chelmsford -1 41 £50,000 - 1
Southend-on-Sea -1 5 £22,500 -65.10% 5
Colchester +11 2 £35,000 -22.22% 3
Witham +11 1 - -
Basildon -2 1 £35,000 -36.36% 1
TDD
East of England

For the 6 months to 15 February 2019, 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 Essex region with a requirement for TDD.

1 45 (86.54%) SQL
2 35 (67.31%) Agile Software Development
3 31 (59.62%) Java
4 29 (55.77%) C#
4 29 (55.77%) .NET
5 27 (51.92%) Microsoft
6 26 (50.00%) Degree
7 25 (48.08%) Computer Science
7 25 (48.08%) Computer Science Degree
8 24 (46.15%) Team Foundation Server
9 23 (44.23%) SQL Server
10 21 (40.38%) MVC
10 21 (40.38%) NUnit
11 20 (38.46%) BDD
11 20 (38.46%) OO
11 20 (38.46%) AngularJS
12 18 (34.62%) Continuous Improvement
13 17 (32.69%) Visual Studio
14 15 (28.85%) Python
14 15 (28.85%) MSTest
14 15 (28.85%) Test Automation
14 15 (28.85%) Time Management
14 15 (28.85%) Spring
14 15 (28.85%) Software Delivery
14 15 (28.85%) Waterfall
15 14 (26.92%) Acceptance Criteria
15 14 (26.92%) SDLC
15 14 (26.92%) SpecFlow
15 14 (26.92%) Gherkin
15 14 (26.92%) Non-Functional Testing

TDD
Co-occurring IT Skills in Essex 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 8 (15.38%) JBoss
2 1 (1.92%) CMS
2 1 (1.92%) WordPress
Applications
1 1 (1.92%) Microsoft Excel
1 1 (1.92%) Microsoft Office
1 1 (1.92%) Photoshop
Cloud Services
1 7 (13.46%) Microsoft Azure
2 1 (1.92%) Dynamics 365
Communications & Networking
1 1 (1.92%) DNS
Database & Business Intelligence
1 23 (44.23%) SQL Server
2 5 (9.62%) MySQL
3 2 (3.85%) SQL Server 2016
4 1 (1.92%) Data Warehouse
4 1 (1.92%) OLTP
4 1 (1.92%) Power BI
4 1 (1.92%) SQL CLR
4 1 (1.92%) SQL Server 2012
4 1 (1.92%) SQL Server 2014
4 1 (1.92%) SQL Server Analysis Services
4 1 (1.92%) SQL Server Integration Services
4 1 (1.92%) SQL Server Reporting Services
4 1 (1.92%) SSDT
Development Applications
1 24 (46.15%) Team Foundation Server
2 21 (40.38%) NUnit
3 17 (32.69%) Visual Studio
4 15 (28.85%) MSTest
5 14 (26.92%) SpecFlow
5 14 (26.92%) Visual Studio Team System
5 14 (26.92%) WatiN
6 7 (13.46%) Git (software)
7 6 (11.54%) Moq
7 6 (11.54%) Subversion
8 1 (1.92%) Gradle
General
1 3 (5.77%) Finance
2 1 (1.92%) Automotive
2 1 (1.92%) Banking
2 1 (1.92%) Games
Job Titles
1 35 (67.31%) Developer
2 15 (28.85%) Java Developer
3 14 (26.92%) Analyst
3 14 (26.92%) Automation Test Analyst
3 14 (26.92%) Automation Tester
3 14 (26.92%) Test Analyst
3 14 (26.92%) Tester
4 10 (19.23%) .NET Developer
5 9 (17.31%) Software Developer
6 8 (15.38%) Senior Developer
7 7 (13.46%) C# .NET Developer
7 7 (13.46%) C# Developer
8 6 (11.54%) Senior .NET Developer
9 5 (9.62%) .NET Web Developer
9 5 (9.62%) ASP.NET Developer
9 5 (9.62%) Graduate Developer
9 5 (9.62%) Graduate Software Developer
9 5 (9.62%) Senior C# Developer
9 5 (9.62%) Senior Web Developer
9 5 (9.62%) Web Developer
Libraries, Frameworks & Software Standards
1 29 (55.77%) .NET
2 20 (38.46%) AngularJS
3 15 (28.85%) Spring
4 14 (26.92%) Gherkin
4 14 (26.92%) Spring MVC
5 13 (25.00%) CSS
6 11 (21.15%) jQuery
7 9 (17.31%) HTML
8 8 (15.38%) ASP.NET
9 6 (11.54%) .NET Framework
9 6 (11.54%) ASP.NET Web API
9 6 (11.54%) JSON
9 6 (11.54%) WCF
10 5 (9.62%) Ajax
10 5 (9.62%) Entity Framework
10 5 (9.62%) React
10 5 (9.62%) Vue.js
10 5 (9.62%) XML
11 1 (1.92%) CGI
11 1 (1.92%) Web Services
Miscellaneous
1 5 (9.62%) Replication
2 1 (1.92%) Analytical Skills
2 1 (1.92%) Enterprise Software
2 1 (1.92%) Social Network
2 1 (1.92%) User Experience
Operating Systems
1 1 (1.92%) Windows
1 1 (1.92%) Windows 10
1 1 (1.92%) Windows 7
Processes & Methodologies
1 35 (67.31%) Agile Software Development
2 25 (48.08%) Computer Science
3 21 (40.38%) MVC
4 20 (38.46%) BDD
4 20 (38.46%) OO
5 18 (34.62%) Continuous Improvement
6 15 (28.85%) Software Delivery
6 15 (28.85%) Test Automation
6 15 (28.85%) Time Management
6 15 (28.85%) Waterfall
7 14 (26.92%) Acceptance Criteria
7 14 (26.92%) Non-Functional Testing
7 14 (26.92%) Regression Testing
7 14 (26.92%) SDLC
7 14 (26.92%) Test Scripting
7 14 (26.92%) User Acceptance Testing
8 10 (19.23%) Refactoring
9 9 (17.31%) Problem-Solving
10 6 (11.54%) Mathematics
10 6 (11.54%) Mentoring
Programming Languages
1 45 (86.54%) SQL
2 31 (59.62%) Java
3 29 (55.77%) C#
4 15 (28.85%) Python
5 14 (26.92%) VB
6 13 (25.00%) JavaScript
7 11 (21.15%) T-SQL
8 5 (9.62%) C
8 5 (9.62%) PHP
8 5 (9.62%) VB.NET
9 1 (1.92%) C++
9 1 (1.92%) Ruby
Qualifications
1 26 (50.00%) Degree
2 25 (48.08%) Computer Science Degree
3 14 (26.92%) ISEB
3 14 (26.92%) ISTQB
4 1 (1.92%) Microsoft Certification
Quality Assurance & Compliance
1 10 (19.23%) QA
Vendors
1 27 (51.92%) Microsoft
2 1 (1.92%) Adobe
2 1 (1.92%) Facebook
2 1 (1.92%) Twitter
2 1 (1.92%) Xamarin