Period
to 19 October 2018

The following table provides summary statistics for contract job vacancies advertised in Slough 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 19 October 2018 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)
Berkshire > Slough
6 months to
19 Oct 2018
Same period 2017 Same period 2016
Rank 31 22 32
Rank change year-on-year -9 +10 +3
Contract jobs citing TDD 7 12 10
As % of all contract IT jobs advertised in Slough 2.06% 4.08% 3.07%
As % of the Processes & Methodologies category 2.50% 5.36% 3.83%
Number of daily rates quoted 6 9 9
Slough median daily rate £494 £400 £320
Median daily rate % change year-on-year +23.44% +25.20% -11.86%
10th Percentile £344 £346 £299
90th Percentile £688 £445 £354
Berkshire median daily rate £420 £400 £413
% change year-on-year +5.00% -3.03% +6.45%
Number of hourly rates quoted 0 0 0
Slough median hourly rate - - -
Berkshire median hourly rate - - £40.00

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 Slough with a requirement for process or methodology skills.

All Process and Methodology Skills
Slough
Contract vacancies with a requirement for process or methodology skills 280 224 261
As % of all contract IT jobs advertised in Slough 82.35% 76.19% 80.06%
Number of daily rates quoted 178 148 173
Slough median daily rate £400 £400 £363
Median daily rate % change year-on-year - +10.34% +3.57%
10th Percentile £207 £261 £251
90th Percentile £552 £550 £486
Berkshire median daily rate £425 £425 £400
% change year-on-year - +6.25% +3.23%
Number of hourly rates quoted 4 3 9
Slough median hourly rate £18.75 £14.00 £12.50
Median hourly rate % change year-on-year +33.93% +12.00% -39.02%
10th Percentile £15.68 £14.00 £8.50
90th Percentile £20.70 £16.80 £40.25
Berkshire median hourly rate £20.00 £16.00 £17.50
% change year-on-year +25.00% -8.57% -33.96%

TDD
Job Vacancy Trend in Slough

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

Job vacancy trend for TDD in Slough

TDD
Contractor Daily Rate Trend in Slough

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

Contractor daily rate trend for TDD in Slough

TDD
Contractor Daily Rate Histogram in Slough

The daily rate distribution of IT jobs citing TDD in Slough over the 6 months to 19 October 2018.

Contractor daily rate histogram for TDD in Slough

For the 6 months to 19 October 2018, IT contractor 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 contract job ads across the Slough region with a requirement for TDD.

1 4 (57.14%) Java
1 4 (57.14%) Agile Software Development
2 2 (28.57%) JavaScript
2 2 (28.57%) RESTful
2 2 (28.57%) Scala
2 2 (28.57%) Microservices
2 2 (28.57%) React
3 1 (14.29%) Java 8
3 1 (14.29%) C#
3 1 (14.29%) React Native
3 1 (14.29%) Front End Development
3 1 (14.29%) Kubernetes
3 1 (14.29%) Microsoft Azure
3 1 (14.29%) PaaS
3 1 (14.29%) Cucumber
3 1 (14.29%) BDD
3 1 (14.29%) Node.js
3 1 (14.29%) Mobile App
3 1 (14.29%) Mobile Application Development
3 1 (14.29%) Docker
3 1 (14.29%) DevOps
3 1 (14.29%) .NET
3 1 (14.29%) E-Commerce
3 1 (14.29%) Business Intelligence
3 1 (14.29%) NHS
3 1 (14.29%) Telecoms
3 1 (14.29%) Publishing
3 1 (14.29%) Games
3 1 (14.29%) Scrum
3 1 (14.29%) Kanban

TDD
Co-occurring IT Skills in Slough 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:

Cloud Services
1 1 (14.29%) Microsoft Azure
1 1 (14.29%) PaaS
Development Applications
1 1 (14.29%) Cucumber
General
1 1 (14.29%) Games
1 1 (14.29%) Publishing
1 1 (14.29%) Telecoms
Job Titles
1 5 (71.43%) Developer
2 2 (28.57%) Java Developer
2 2 (28.57%) React Developer
2 2 (28.57%) Technical Leader
3 1 (14.29%) C# Developer
3 1 (14.29%) Front End Developer (Client-Side Developer)
3 1 (14.29%) JavaScript Developer
3 1 (14.29%) Node.js Developer
3 1 (14.29%) Senior Developer
3 1 (14.29%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 2 (28.57%) React
1 2 (28.57%) RESTful
2 1 (14.29%) .NET
2 1 (14.29%) Node.js
2 1 (14.29%) React Native
2 1 (14.29%) Spring
Miscellaneous
1 1 (14.29%) Mobile App
1 1 (14.29%) NHS
Processes & Methodologies
1 4 (57.14%) Agile Software Development
2 2 (28.57%) Microservices
3 1 (14.29%) BDD
3 1 (14.29%) Business Intelligence
3 1 (14.29%) DevOps
3 1 (14.29%) E-Commerce
3 1 (14.29%) Front End Development
3 1 (14.29%) Kanban
3 1 (14.29%) Mobile Application Development
3 1 (14.29%) Scrum
Programming Languages
1 4 (57.14%) Java
2 2 (28.57%) JavaScript
2 2 (28.57%) Scala
3 1 (14.29%) C#
3 1 (14.29%) Java 8
System Software
1 1 (14.29%) Docker
Systems Management
1 1 (14.29%) Kubernetes