Period
to 18 November 2017

The following table provides summary statistics for contract job vacancies advertised in Hammersmith 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)
West London > Hammersmith
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 12 11 12
Rank change year-on-year -1 +1 0
Contract jobs citing TDD 8 6 14
As % of all contract IT jobs advertised in Hammersmith 9.30% 8.70% 13.86%
As % of the Processes & Methodologies category 10.67% 10.00% 14.74%
Number of daily rates quoted 8 5 8
Hammersmith median daily rate £488 £425 £345
Median daily rate % change year-on-year +14.71% +23.19% -13.53%
10th Percentile £400 £362 £310
90th Percentile £575 £490 £479
West London median daily rate £518 £475 £450
% change year-on-year +8.95% +5.56% +8.76%
Number of hourly rates quoted 0 0 0
Hammersmith median hourly rate - - -
West London median hourly rate - £55.00 £45.00
% change year-on-year - +22.22% -

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 Hammersmith with a requirement for process or methodology skills.

All Process and Methodology Skills
Hammersmith
Contract vacancies with a requirement for process or methodology skills 75 60 95
As % of all contract IT jobs advertised in Hammersmith 87.21% 86.96% 94.06%
Number of daily rates quoted 62 51 73
Hammersmith median daily rate £450 £425 £388
Median daily rate % change year-on-year +5.88% +9.68% -3.13%
10th Percentile £328 £175 £263
90th Percentile £606 £488 £529
West London median daily rate £450 £420 £400
% change year-on-year +7.14% +5.00% -
Number of hourly rates quoted 1 4 2
Hammersmith median hourly rate £24.87 £42.00 £43.00
Median hourly rate % change year-on-year -40.79% -2.33% +160.61%
West London median hourly rate £23.00 £22.00 £22.00
% change year-on-year +4.55% - +33.33%

TDD
Job Vacancy Trend in Hammersmith

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

Job vacancy trend for TDD in Hammersmith

TDD
Contractor Daily Rate Trend in Hammersmith

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

Contractor daily rate trend for TDD in Hammersmith

TDD
Contractor Daily Rate Histogram in Hammersmith

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

Contractor daily rate histogram for TDD in Hammersmith

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 Hammersmith region with a requirement for TDD.

1 4 (50.00%) Windows
1 4 (50.00%) Linux
1 4 (50.00%) Nagios
1 4 (50.00%) Ruby
1 4 (50.00%) JIRA
1 4 (50.00%) SC Cleared
1 4 (50.00%) Security Cleared
1 4 (50.00%) PowerShell
1 4 (50.00%) Red Hat Enterprise Linux
1 4 (50.00%) Elasticsearch
1 4 (50.00%) Go
1 4 (50.00%) GitHub
1 4 (50.00%) Ansible
1 4 (50.00%) Sensu
1 4 (50.00%) logstash
1 4 (50.00%) DevOps
1 4 (50.00%) Elastic Stack
2 3 (37.50%) AngularJS
2 3 (37.50%) C#
2 3 (37.50%) .NET
3 2 (25.00%) ASP.NET
3 2 (25.00%) HTML
3 2 (25.00%) OO
3 2 (25.00%) Agile Software Development
3 2 (25.00%) MVC
3 2 (25.00%) PostgreSQL
3 2 (25.00%) ASP.NET MVC
3 2 (25.00%) HTML5
3 2 (25.00%) JSON
3 2 (25.00%) Angular 2

TDD
Co-occurring IT Skills in Hammersmith 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 4 (50.00%) Elasticsearch
Cloud Services
1 4 (50.00%) GitHub
Database & Business Intelligence
1 2 (25.00%) PostgreSQL
2 1 (12.50%) NoSQL
2 1 (12.50%) RavenDB
Development Applications
1 4 (50.00%) JIRA
2 1 (12.50%) Octopus Deploy
2 1 (12.50%) SpecFlow
2 1 (12.50%) TeamCity
Job Titles
1 4 (50.00%) Developer
1 4 (50.00%) DevOps Engineer
1 4 (50.00%) DevOps Systems Engineer
1 4 (50.00%) Systems Engineer
2 3 (37.50%) .NET Developer
3 2 (25.00%) Full Stack Developer
4 1 (12.50%) Agile .NET Developer
4 1 (12.50%) Agile Developer
4 1 (12.50%) Angular Developer
4 1 (12.50%) Front End Developer (Client-Side Developer)
4 1 (12.50%) Node.js Developer
4 1 (12.50%) UI Developer
Libraries, Frameworks & Software Standards
1 4 (50.00%) Elastic Stack
1 4 (50.00%) Sensu
2 3 (37.50%) .NET
2 3 (37.50%) AngularJS
3 2 (25.00%) Angular 2
3 2 (25.00%) ASP.NET
3 2 (25.00%) ASP.NET MVC
3 2 (25.00%) HTML
3 2 (25.00%) HTML5
3 2 (25.00%) JSON
3 2 (25.00%) REST
4 1 (12.50%) Aurelia
4 1 (12.50%) Node.js
4 1 (12.50%) React
Miscellaneous
1 1 (12.50%) User Experience
Operating Systems
1 4 (50.00%) Linux
1 4 (50.00%) Red Hat Enterprise Linux
1 4 (50.00%) Windows
Processes & Methodologies
1 4 (50.00%) DevOps
2 2 (25.00%) Agile Software Development
2 2 (25.00%) MVC
2 2 (25.00%) OO
3 1 (12.50%) Acceptance Criteria
3 1 (12.50%) BDD
3 1 (12.50%) Continuous Integration
3 1 (12.50%) Extreme Programming
3 1 (12.50%) OOD
3 1 (12.50%) Pair Programming
3 1 (12.50%) Software Delivery
3 1 (12.50%) Software Deployment
3 1 (12.50%) Software Engineering
3 1 (12.50%) SOLID
3 1 (12.50%) Web Application Development
Programming Languages
1 4 (50.00%) Go
1 4 (50.00%) PowerShell
1 4 (50.00%) Ruby
2 3 (37.50%) C#
3 1 (12.50%) JavaScript
Qualifications
1 4 (50.00%) SC Cleared
1 4 (50.00%) Security Cleared
Quality Assurance & Compliance
1 1 (12.50%) QA
System Software
1 1 (12.50%) Docker
Systems Management
1 4 (50.00%) Ansible
1 4 (50.00%) logstash
1 4 (50.00%) Nagios
2 1 (12.50%) Kubernetes
Vendors
1 1 (12.50%) Microsoft