Period
to 19 October 2018

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 19 October 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
6 months to
19 Oct 2018
Same period 2017 Same period 2016
Rank 36 40 67
Rank change year-on-year +4 +27 -18
Permanent jobs citing TDD 72 94 77
As % of all permanent IT jobs advertised in Essex 5.67% 6.19% 3.63%
As % of the Processes & Methodologies category 6.86% 7.15% 4.06%
Number of salaries quoted 68 78 59
Essex median annual salary £45,000 £50,000 £46,194
Median salary % change year-on-year -10.00% +8.24% +11.98%
10th Percentile £24,000 £37,500 £32,500
90th Percentile £66,250 £67,500 £65,000
East of England median annual salary £50,000 £49,500 £45,672
% change year-on-year +1.01% +8.38% -3.85%

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 1,049 1,314 1,895
As % of all permanent IT jobs advertised in Essex 82.66% 86.50% 89.39%
Number of salaries quoted 833 1,074 1,477
Essex median annual salary £42,500 £46,250 £45,000
Median salary % change year-on-year -8.11% +2.78% +12.50%
10th Percentile £24,000 £28,075 £25,000
90th Percentile £66,250 £65,000 £68,150
East of England median annual salary £47,500 £45,000 £45,000
% change year-on-year +5.56% - -

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 19 October 2018.

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 19 October 2018. 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 +16 36 £45,000 -10.00% 5
Harlow -3 8 £57,500 -8.00% 1
Southend-on-Sea -7 8 £22,500 -59.09% 2
Colchester +13 6 £45,000 -14.29% 1
Basildon -15 3 £57,500 +4.55% 1
Brentwood +6 2 £30,000 -47.83% 2
TDD
East of England

For the 6 months to 19 October 2018, 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 49 (68.06%) Agile Software Development
2 47 (65.28%) SQL
3 43 (59.72%) C#
4 42 (58.33%) MVC
5 41 (56.94%) SQL Server
6 40 (55.56%) Java
7 36 (50.00%) .NET
8 30 (41.67%) BDD
9 29 (40.28%) Microsoft
10 26 (36.11%) Degree
11 25 (34.72%) Computer Science
11 25 (34.72%) Computer Science Degree
12 22 (30.56%) OO
12 22 (30.56%) Continuous Improvement
12 22 (30.56%) AngularJS
13 20 (27.78%) Visual Studio
13 20 (27.78%) JavaScript
13 20 (27.78%) Spring
14 19 (26.39%) ASP.NET
15 17 (23.61%) RESTful
16 16 (22.22%) Git (software)
16 16 (22.22%) Time Management
17 15 (20.83%) Software Delivery
18 14 (19.44%) Team Foundation Server
18 14 (19.44%) MySQL
18 14 (19.44%) Python
18 14 (19.44%) Subversion
18 14 (19.44%) Unit Testing
19 13 (18.06%) Test Scripting
19 13 (18.06%) NUnit

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 12 (16.67%) JBoss
2 4 (5.56%) IIS
3 2 (2.78%) Mule
3 2 (2.78%) Oracle Service Bus
3 2 (2.78%) Oracle SOA Suite
4 1 (1.39%) Elasticsearch
4 1 (1.39%) WildFly
Applications
1 1 (1.39%) Microsoft Excel
1 1 (1.39%) Microsoft Office
Cloud Services
1 7 (9.72%) Microsoft Azure
Communications & Networking
1 2 (2.78%) HTTP
1 2 (2.78%) Internet
Database & Business Intelligence
1 41 (56.94%) SQL Server
2 14 (19.44%) MySQL
3 9 (12.50%) SQL Server 2016
4 1 (1.39%) NoSQL
4 1 (1.39%) SQL Server Integration Services
4 1 (1.39%) SQL Server Reporting Services
Development Applications
1 20 (27.78%) Visual Studio
2 16 (22.22%) Git (software)
3 14 (19.44%) Subversion
3 14 (19.44%) Team Foundation Server
4 13 (18.06%) NUnit
5 12 (16.67%) MSTest
5 12 (16.67%) SpecFlow
5 12 (16.67%) Visual Studio Team System
5 12 (16.67%) WatiN
6 6 (8.33%) JUnit
7 4 (5.56%) TeamCity
8 1 (1.39%) Maven
8 1 (1.39%) Moq
General
1 8 (11.11%) Retail
2 7 (9.72%) Automotive
2 7 (9.72%) Games
3 3 (4.17%) Finance
4 2 (2.78%) Electronics
4 2 (2.78%) Manufacturing
4 2 (2.78%) Marketing
4 2 (2.78%) Telecoms
Job Titles
1 49 (68.06%) Developer
2 23 (31.94%) Java Developer
3 13 (18.06%) Analyst
3 13 (18.06%) Graduate
3 13 (18.06%) Graduate Developer
4 12 (16.67%) .NET Developer
4 12 (16.67%) Test Analyst
4 12 (16.67%) Tester
5 11 (15.28%) Automation Test Analyst
5 11 (15.28%) Automation Tester
6 8 (11.11%) Software Developer
7 7 (9.72%) Graduate Software Developer
7 7 (9.72%) Senior Developer
8 6 (8.33%) J2EE Developer
8 6 (8.33%) Java/J2EE Developer
8 6 (8.33%) Junior
8 6 (8.33%) Junior Developer
8 6 (8.33%) Junior J2EE Developer
8 6 (8.33%) Junior Java Developer
8 6 (8.33%) SQL Developer
Libraries, Frameworks & Software Standards
1 36 (50.00%) .NET
2 22 (30.56%) AngularJS
3 20 (27.78%) Spring
4 19 (26.39%) ASP.NET
5 17 (23.61%) RESTful
6 13 (18.06%) jQuery
7 12 (16.67%) Gherkin
7 12 (16.67%) Web Services
8 11 (15.28%) Spring MVC
9 10 (13.89%) CSS
9 10 (13.89%) HTML
9 10 (13.89%) KnockoutJS
9 10 (13.89%) Twitter Bootstrap
9 10 (13.89%) WCF
10 9 (12.50%) ASP.NET MVC
11 7 (9.72%) ASP.NET Web API
11 7 (9.72%) Java SE
11 7 (9.72%) JPA
11 7 (9.72%) React
11 7 (9.72%) Struts
Miscellaneous
1 25 (34.72%) Computer Science
2 8 (11.11%) Greenfield Project
3 4 (5.56%) Fintech
4 2 (2.78%) User Experience
5 1 (1.39%) Mobile App
Operating Systems
1 6 (8.33%) Windows
2 5 (6.94%) Windows 10
2 5 (6.94%) Windows 7
3 4 (5.56%) Windows Server
4 1 (1.39%) Android
4 1 (1.39%) Apple iOS
4 1 (1.39%) Linux
Processes & Methodologies
1 49 (68.06%) Agile Software Development
2 42 (58.33%) MVC
3 30 (41.67%) BDD
4 22 (30.56%) Continuous Improvement
4 22 (30.56%) OO
5 16 (22.22%) Time Management
6 15 (20.83%) Software Delivery
7 14 (19.44%) Unit Testing
8 13 (18.06%) Kanban
8 13 (18.06%) Scrum
8 13 (18.06%) Test Automation
8 13 (18.06%) Test Scripting
9 12 (16.67%) Acceptance Criteria
9 12 (16.67%) Non-Functional Testing
9 12 (16.67%) Regression Testing
9 12 (16.67%) SDLC
9 12 (16.67%) User Acceptance Testing
9 12 (16.67%) Waterfall
10 11 (15.28%) Software Engineering
11 10 (13.89%) Continuous Integration
Programming Languages
1 47 (65.28%) SQL
2 43 (59.72%) C#
3 40 (55.56%) Java
4 20 (27.78%) JavaScript
5 14 (19.44%) Python
6 12 (16.67%) VB
7 10 (13.89%) Java 8
8 9 (12.50%) T-SQL
9 8 (11.11%) PHP
10 5 (6.94%) C++
11 3 (4.17%) C
11 3 (4.17%) Groovy
11 3 (4.17%) Ruby
11 3 (4.17%) VB.NET
12 2 (2.78%) Delphi
13 1 (1.39%) XPath
Qualifications
1 26 (36.11%) Degree
2 25 (34.72%) Computer Science Degree
3 12 (16.67%) ISEB
3 12 (16.67%) ISTQB
Quality Assurance & Compliance
1 1 (1.39%) QA
System Software
1 1 (1.39%) Docker
Vendors
1 29 (40.28%) Microsoft
2 2 (2.78%) Oracle
2 2 (2.78%) SAP
2 2 (2.78%) WSO2
3 1 (1.39%) Talend