Period
to 17 December 2018

The following table provides summary statistics for contract job vacancies advertised in Cambridge 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 17 December 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)
Cambridgeshire > Cambridge
6 months to
17 Dec 2018
Same period 2017 Same period 2016
Rank 47 40 18
Rank change year-on-year -7 -22 +13
Contract jobs citing TDD 23 24 39
As % of all contract IT jobs advertised in Cambridge 3.15% 3.51% 6.08%
As % of the Processes & Methodologies category 3.58% 4.06% 7.22%
Number of daily rates quoted 17 44 19
Cambridge median daily rate £445 £363 £388
Median daily rate % change year-on-year +22.76% -6.45% -8.82%
10th Percentile £263 £316 £273
90th Percentile £475 £473 £475
Cambridgeshire median daily rate £450 £388 £350
% change year-on-year +16.13% +10.71% -13.85%
Number of hourly rates quoted 0 0 3
Cambridge median hourly rate - - £40.00
Cambridgeshire 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 Cambridge with a requirement for process or methodology skills.

All Process and Methodology Skills
Cambridge
Contract vacancies with a requirement for process or methodology skills 643 591 540
As % of all contract IT jobs advertised in Cambridge 87.96% 86.53% 84.24%
Number of daily rates quoted 342 335 266
Cambridge median daily rate £425 £395 £400
Median daily rate % change year-on-year +7.59% -1.25% +3.23%
10th Percentile £284 £264 £243
90th Percentile £575 £575 £550
Cambridgeshire median daily rate £425 £388 £380
% change year-on-year +9.68% +1.97% -1.30%
Number of hourly rates quoted 52 78 62
Cambridge median hourly rate £42.50 £41.00 £37.50
Median hourly rate % change year-on-year +3.66% +9.33% -2.91%
10th Percentile £17.50 £17.09 £12.18
90th Percentile £52.50 £52.88 £47.50
Cambridgeshire median hourly rate £23.00 £40.00 £35.00
% change year-on-year -42.50% +14.29% +66.67%

TDD
Job Vacancy Trend in Cambridge

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

Job vacancy trend for TDD in Cambridge

TDD
Contractor Daily Rate Trend in Cambridge

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

Contractor daily rate trend for TDD in Cambridge

TDD
Contractor Daily Rate Histogram in Cambridge

The daily rate distribution of IT jobs citing TDD in Cambridge over the 6 months to 17 December 2018.

Contractor daily rate histogram for TDD in Cambridge

TDD
Contractor Hourly Rate Trend in Cambridge

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

Contractor hourly rate trend for TDD in Cambridge

For the 6 months to 17 December 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 Cambridge region with a requirement for TDD.

1 12 (52.17%) Agile Software Development
2 11 (47.83%) Continuous Integration
3 9 (39.13%) Test Automation
4 8 (34.78%) Jenkins
4 8 (34.78%) Selenium
4 8 (34.78%) Java
5 7 (30.43%) Cucumber
6 6 (26.09%) React
6 6 (26.09%) JavaScript
6 6 (26.09%) Linux
6 6 (26.09%) Python
7 5 (21.74%) Internet
7 5 (21.74%) CSS
7 5 (21.74%) HTML
7 5 (21.74%) Embedded Linux
7 5 (21.74%) Gherkin
7 5 (21.74%) BDD
7 5 (21.74%) Atlassian Bamboo
8 4 (17.39%) Visualisation
8 4 (17.39%) WebGL
8 4 (17.39%) Data Visualisation
8 4 (17.39%) Machine Learning
8 4 (17.39%) D3.js
8 4 (17.39%) Internet of Things
8 4 (17.39%) Waterfall
8 4 (17.39%) Big Data
8 4 (17.39%) Web Application Development
8 4 (17.39%) ES6
8 4 (17.39%) GraphQL
8 4 (17.39%) Degree

TDD
Co-occurring IT Skills in Cambridge 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 1 (4.35%) Apache
1 1 (4.35%) IIS
1 1 (4.35%) nginx
Applications
1 2 (8.70%) Microsoft Project
Cloud Services
1 1 (4.35%) Amazon AWS
1 1 (4.35%) GitHub
1 1 (4.35%) Microsoft Azure
1 1 (4.35%) OpenShift
Communications & Networking
1 5 (21.74%) Internet
2 2 (8.70%) HTTP
Database & Business Intelligence
1 4 (17.39%) Big Data
2 1 (4.35%) SQL Server
Development Applications
1 8 (34.78%) Jenkins
1 8 (34.78%) Selenium
2 7 (30.43%) Cucumber
3 5 (21.74%) Atlassian Bamboo
4 3 (13.04%) Git (software)
4 3 (13.04%) GitLab
5 2 (8.70%) Android Studio
5 2 (8.70%) git-flow
5 2 (8.70%) Maven
6 1 (4.35%) Grunt
6 1 (4.35%) gulp
6 1 (4.35%) Jasmine
6 1 (4.35%) Karma Test Runner
6 1 (4.35%) LoadRunner
6 1 (4.35%) Mocha
6 1 (4.35%) webpack
General
1 4 (17.39%) Finance
2 2 (8.70%) Retail
3 1 (4.35%) Manufacturing
3 1 (4.35%) Pharmaceutical
Job Titles
1 5 (21.74%) Developer
2 4 (17.39%) Software Engineer
2 4 (17.39%) Test Engineer
3 3 (13.04%) Analyst
3 3 (13.04%) Big Data Engineer
3 3 (13.04%) Big Data Software Engineer
3 3 (13.04%) Business Analyst
4 2 (8.70%) Android Engineer
4 2 (8.70%) Java Developer
4 2 (8.70%) Selenium Tester
4 2 (8.70%) Tester
5 1 (4.35%) AWS Engineer
5 1 (4.35%) Cloud Engineer
5 1 (4.35%) Developer in Test
5 1 (4.35%) ETL Tester
5 1 (4.35%) IT Analyst
5 1 (4.35%) IT Business Analyst
5 1 (4.35%) IT Project Manager
5 1 (4.35%) JavaScript Engineer
5 1 (4.35%) Ruby Engineer
Libraries, Frameworks & Software Standards
1 6 (26.09%) React
2 5 (21.74%) CSS
2 5 (21.74%) Gherkin
2 5 (21.74%) HTML
3 4 (17.39%) D3.js
3 4 (17.39%) GraphQL
3 4 (17.39%) Redux
3 4 (17.39%) WebGL
4 3 (13.04%) Node.js
5 2 (8.70%) Android SDK
5 2 (8.70%) Hibernate
5 2 (8.70%) RESTful
5 2 (8.70%) Spring
5 2 (8.70%) Spring Boot
6 1 (4.35%) Django
6 1 (4.35%) Express
6 1 (4.35%) HTML5
6 1 (4.35%) Polymer
6 1 (4.35%) Sass
6 1 (4.35%) Twitter Bootstrap
Miscellaneous
1 4 (17.39%) Internet of Things
1 4 (17.39%) Life Science
1 4 (17.39%) Smart City
2 1 (4.35%) Fintech
2 1 (4.35%) Greenfield Project
2 1 (4.35%) LIMS
2 1 (4.35%) Management Information System
Operating Systems
1 6 (26.09%) Linux
2 5 (21.74%) Embedded Linux
3 3 (13.04%) Android
4 1 (4.35%) Apple iOS
4 1 (4.35%) Unix
4 1 (4.35%) Windows
4 1 (4.35%) Windows Phone
Processes & Methodologies
1 12 (52.17%) Agile Software Development
2 11 (47.83%) Continuous Integration
3 9 (39.13%) Test Automation
4 5 (21.74%) BDD
5 4 (17.39%) Business Analysis
5 4 (17.39%) Data Visualisation
5 4 (17.39%) Machine Learning
5 4 (17.39%) Project Management
5 4 (17.39%) Software Engineering
5 4 (17.39%) System Testing
5 4 (17.39%) Visualisation
5 4 (17.39%) Waterfall
5 4 (17.39%) Web Application Development
6 3 (13.04%) OO
7 2 (8.70%) ERP
7 2 (8.70%) Microservices
7 2 (8.70%) Resource Management
8 1 (4.35%) Deployment Automation
8 1 (4.35%) SOLID
8 1 (4.35%) Task Automation
Programming Languages
1 8 (34.78%) Java
2 6 (26.09%) JavaScript
2 6 (26.09%) Python
3 4 (17.39%) ES6
4 2 (8.70%) C#
4 2 (8.70%) Java 8
5 1 (4.35%) Go
5 1 (4.35%) PowerShell
5 1 (4.35%) Ruby
Qualifications
1 4 (17.39%) Degree
2 2 (8.70%) ISEB
3 1 (4.35%) CBAP
3 1 (4.35%) PMI Certification
3 1 (4.35%) PMP
Quality Assurance & Compliance
1 2 (8.70%) QA
System Software
1 1 (4.35%) Docker
Systems Management
1 2 (8.70%) Kubernetes
2 1 (4.35%) Ansible
2 1 (4.35%) Opscode Chef
2 1 (4.35%) Puppet
2 1 (4.35%) Terraform
Vendors
1 2 (8.70%) Microsoft
1 2 (8.70%) Oracle