Period
to 18 November 2017

The following table provides summary statistics for contract job vacancies advertised in West Sussex with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 18 November 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Test-Driven Development (TDD)
South East > West Sussex
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 42 39 42
Rank change year-on-year -3 +3 +11
Contract jobs citing TDD 51 57 53
As % of all contract IT jobs advertised in West Sussex 4.88% 4.45% 4.34%
As % of the Processes & Methodologies category 5.50% 5.08% 4.98%
Number of daily rates quoted 17 47 43
West Sussex median daily rate £343 £475 £413
Median daily rate % change year-on-year -27.89% +15.15% +10.00%
10th Percentile £290 £305 £269
90th Percentile £488 £543 £549
South East median daily rate £425 £442 £400
% change year-on-year -3.74% +10.38% +6.67%
Number of hourly rates quoted 15 1 3
West Sussex median hourly rate £45.00 £45.00 £50.00
Median hourly rate % change year-on-year - -10.00% +17.65%
South East median hourly rate £45.00 £36.50 £50.00
% change year-on-year +23.29% -27.00% +25.00%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in West Sussex with a requirement for process or methodology skills.

All Process and Methodology Skills
West Sussex
Contract vacancies with a requirement for process or methodology skills 927 1121 1065
As % of all contract IT jobs advertised in West Sussex 88.71% 87.51% 87.22%
Number of daily rates quoted 554 637 705
West Sussex median daily rate £418 £400 £388
Median daily rate % change year-on-year +4.38% +3.23% +10.71%
10th Percentile £253 £263 £272
90th Percentile £573 £550 £550
South East median daily rate £425 £400 £391
% change year-on-year +6.25% +2.43% +4.13%
Number of hourly rates quoted 48 45 30
West Sussex median hourly rate £46.25 £35.00 £29.75
Median hourly rate % change year-on-year +32.14% +17.65% +85.94%
10th Percentile £24.02 £19.58 £11.22
90th Percentile £50.25 £52.25 £50.00
South East median hourly rate £23.07 £26.50 £26.09
% change year-on-year -12.94% +1.57% +49.09%

TDD
Job Vacancy Trend in West Sussex

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

Job vacancy trend for TDD in West Sussex

TDD
Contractor Daily Rate Trend in West Sussex

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in West Sussex.

Contractor daily rate trend for TDD in West Sussex

TDD
Contractor Daily Rate Histogram in West Sussex

The daily rate distribution of IT jobs citing TDD in West Sussex over the 6 months to 18 November 2017.

Contractor daily rate histogram for TDD in West Sussex

TDD
Contractor Hourly Rate Trend in West Sussex

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in West Sussex.

Contractor hourly rate trend for TDD in West Sussex

TDD
Contract Job Locations in West Sussex

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the West Sussex region over the 6 months to 18 November 2017. 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Worthing +2 16 £453 -4.68% 1
Crawley +4 13 - - 4
Gatwick +3 8 £343 -23.89%
East Grinstead - 2 £390 -
TDD
South East

For the 6 months to 18 November 2017, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the West Sussex region with a requirement for TDD.

1 43 (84.31%) Agile Software Development
2 24 (47.06%) JavaScript
2 24 (47.06%) REST
3 23 (45.10%) Scrum
4 22 (43.14%) C#
5 20 (39.22%) HTML
5 20 (39.22%) CSS
5 20 (39.22%) Continuous Integration
6 18 (35.29%) AngularJS
7 17 (33.33%) Unit Testing
7 17 (33.33%) MVC
8 16 (31.37%) ASP.NET
8 16 (31.37%) .NET
9 15 (29.41%) Java
9 15 (29.41%) SQL Server
9 15 (29.41%) Spring
10 14 (27.45%) Web Services
11 13 (25.49%) RESTful
12 12 (23.53%) ASP.NET MVC
12 12 (23.53%) Git (software)
13 11 (21.57%) HTML5
14 10 (19.61%) SOAP
14 10 (19.61%) Jenkins
14 10 (19.61%) Test Automation
14 10 (19.61%) Java EE
15 9 (17.65%) Software Architecture
15 9 (17.65%) Entity Framework
15 9 (17.65%) JUnit
16 8 (15.69%) BDD
16 8 (15.69%) NoSQL

TDD
Co-occurring IT Skills in West Sussex 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 7 (13.73%) CMS
2 6 (11.76%) Elasticsearch
3 4 (7.84%) Cloud Foundry
3 4 (7.84%) IBM Domino
4 2 (3.92%) Sitefinity
5 1 (1.96%) Apache
5 1 (1.96%) Confluence
5 1 (1.96%) EPiServer
Cloud Services
1 5 (9.80%) Amazon AWS
2 4 (7.84%) Google Cloud Platform
2 4 (7.84%) Microsoft Azure
Communications & Networking
1 3 (5.88%) HTTP
Database & Business Intelligence
1 15 (29.41%) SQL Server
2 8 (15.69%) NoSQL
3 7 (13.73%) MongoDB
4 4 (7.84%) DB2
5 3 (5.88%) Apache Cassandra
5 3 (5.88%) MySQL
5 3 (5.88%) PostgreSQL
6 1 (1.96%) Redis
Development Applications
1 12 (23.53%) Git (software)
2 10 (19.61%) Jenkins
3 9 (17.65%) JUnit
4 6 (11.76%) Cucumber
4 6 (11.76%) GoogleTest
4 6 (11.76%) Maven
4 6 (11.76%) Protractor
4 6 (11.76%) Selenium
5 4 (7.84%) Team Foundation Server
5 4 (7.84%) Visual Studio
6 3 (5.88%) Vagrant
7 2 (3.92%) TeamCity
8 1 (1.96%) JIRA
8 1 (1.96%) Octopus Deploy
8 1 (1.96%) PostCSS
8 1 (1.96%) ReSharper
8 1 (1.96%) Visual Studio Team System
General
1 3 (5.88%) Finance
Job Titles
1 38 (74.51%) Developer
2 15 (29.41%) Java Developer
3 11 (21.57%) Senior Developer
4 9 (17.65%) .NET Developer
5 7 (13.73%) C# Developer
6 6 (11.76%) Linux Engineer
6 6 (11.76%) Senior Java Developer
6 6 (11.76%) Web Developer
7 4 (7.84%) Lead Developer
7 4 (7.84%) Scrum Master
7 4 (7.84%) Senior .NET Developer
8 3 (5.88%) Architect
8 3 (5.88%) Lead Java Developer
9 2 (3.92%) Digital Architect
9 2 (3.92%) HTML CSS Developer
9 2 (3.92%) HTML Developer
10 1 (1.96%) Angular Developer
10 1 (1.96%) AWS Developer
10 1 (1.96%) C# .NET Developer
10 1 (1.96%) Java Scala Developer
Libraries, Frameworks & Software Standards
1 24 (47.06%) REST
2 20 (39.22%) CSS
2 20 (39.22%) HTML
3 18 (35.29%) AngularJS
4 16 (31.37%) .NET
4 16 (31.37%) ASP.NET
5 15 (29.41%) Spring
6 14 (27.45%) Web Services
7 13 (25.49%) RESTful
8 12 (23.53%) ASP.NET MVC
9 11 (21.57%) HTML5
10 10 (19.61%) Java EE
10 10 (19.61%) SOAP
11 9 (17.65%) Entity Framework
12 7 (13.73%) Hibernate
12 7 (13.73%) Spring Boot
13 6 (11.76%) JSON
13 6 (11.76%) Yocto
14 5 (9.80%) ASP.NET Web API
14 5 (9.80%) jQuery
Miscellaneous
1 4 (7.84%) Computer Science
1 4 (7.84%) Public Cloud
2 3 (5.88%) User Experience
3 2 (3.92%) Management Information System
4 1 (1.96%) Greenfield Project
4 1 (1.96%) Mobile App
Operating Systems
1 6 (11.76%) Linux
Processes & Methodologies
1 43 (84.31%) Agile Software Development
2 23 (45.10%) Scrum
3 20 (39.22%) Continuous Integration
4 17 (33.33%) MVC
4 17 (33.33%) Unit Testing
5 10 (19.61%) Test Automation
6 9 (17.65%) Software Architecture
7 8 (15.69%) BDD
7 8 (15.69%) Kanban
8 7 (13.73%) Collaborative Working
8 7 (13.73%) Domain-Driven Design
8 7 (13.73%) OWASP
8 7 (13.73%) SDLC
8 7 (13.73%) Validation
8 7 (13.73%) Web Application Development
8 7 (13.73%) Web Development
9 6 (11.76%) API Integration
9 6 (11.76%) Microservices
9 6 (11.76%) OO
9 6 (11.76%) Refactoring
Programming Languages
1 24 (47.06%) JavaScript
2 22 (43.14%) C#
3 15 (29.41%) Java
4 6 (11.76%) C++
4 6 (11.76%) SQL
5 4 (7.84%) Scala
6 3 (5.88%) Ruby
7 1 (1.96%) TypeScript
Qualifications
1 4 (7.84%) Degree
Quality Assurance & Compliance
1 4 (7.84%) GCP
System Software
1 7 (13.73%) Docker
Systems Management
1 3 (5.88%) Ansible
Vendors
1 4 (7.84%) Microsoft
2 2 (3.92%) Telerik