Period
to 13 December 2018

The following table provides summary statistics for contract job vacancies advertised in Crewe 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 13 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)
Cheshire > Crewe
6 months to
13 Dec 2018
Same period 2017 Same period 2016
Rank 26 24 -
Rank change year-on-year -2 - +19
Contract jobs citing TDD 11 6 0
As % of all contract IT jobs advertised in Crewe 5.37% 4.96% -
As % of the Processes & Methodologies category 5.82% 5.31% -
Number of daily rates quoted 10 6 0
Crewe median daily rate £450 £425 -
Median daily rate % change year-on-year +5.88% - -
Cheshire median daily rate £415 £390 £388
% change year-on-year +6.41% +0.65% +2.65%
Number of hourly rates quoted 0 0 0
Crewe median hourly rate - - -
Cheshire median hourly rate £45.00 - -

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 Crewe with a requirement for process or methodology skills.

All Process and Methodology Skills
Crewe
Contract vacancies with a requirement for process or methodology skills 189 113 29
As % of all contract IT jobs advertised in Crewe 92.20% 93.39% 72.50%
Number of daily rates quoted 149 97 16
Crewe median daily rate £438 £483 £275
Median daily rate % change year-on-year -9.33% +75.45% -2.65%
10th Percentile £325 £311 £101
90th Percentile £575 £555 £438
Cheshire median daily rate £400 £423 £400
% change year-on-year -5.33% +5.63% -5.88%
Number of hourly rates quoted 2 5 5
Crewe median hourly rate £41.50 £35.00 £25.00
Median hourly rate % change year-on-year +18.57% +40.00% +44.26%
10th Percentile £38.05 £17.80 £13.75
90th Percentile £42.95 £38.75 £43.75
Cheshire median hourly rate £17.50 £15.42 £20.14
% change year-on-year +13.49% -23.45% +13.35%

TDD
Job Vacancy Trend in Crewe

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

Job vacancy trend for TDD in Crewe

TDD
Contractor Daily Rate Trend in Crewe

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

Contractor daily rate trend for TDD in Crewe

For the 6 months to 13 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 Crewe region with a requirement for TDD.

1 11 (100.00%) Java
2 10 (90.91%) Java 8
3 9 (81.82%) Agile Software Development
4 8 (72.73%) Microservices
5 7 (63.64%) Spring Boot
5 7 (63.64%) Node.js
5 7 (63.64%) Spring
6 5 (45.45%) OO
6 5 (45.45%) DevOps
7 4 (36.36%) Dropwizard
7 4 (36.36%) Hibernate
7 4 (36.36%) Continuous Integration
7 4 (36.36%) Microsoft Azure
8 3 (27.27%) HTML5
8 3 (27.27%) JavaScript
8 3 (27.27%) HTML
8 3 (27.27%) Redux
8 3 (27.27%) Kafka
8 3 (27.27%) Low Latency
8 3 (27.27%) React
9 2 (18.18%) TypeScript
9 2 (18.18%) Jenkins
9 2 (18.18%) Akka
9 2 (18.18%) Spring Integration
9 2 (18.18%) Zuul
9 2 (18.18%) npm
9 2 (18.18%) Yarn
9 2 (18.18%) Garbage Collection
9 2 (18.18%) Data Structures
9 2 (18.18%) ES6

TDD
Co-occurring IT Skills in Crewe 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 4 (36.36%) Microsoft Azure
2 2 (18.18%) Amazon AWS
2 2 (18.18%) npm
2 2 (18.18%) Yarn
Database & Business Intelligence
1 2 (18.18%) SQL Server
1 2 (18.18%) SQL Server 2014
Development Applications
1 2 (18.18%) Git (software)
1 2 (18.18%) IntelliJ
1 2 (18.18%) Jenkins
1 2 (18.18%) JUnit
1 2 (18.18%) Maven
1 2 (18.18%) TeamCity
2 1 (9.09%) webpack
General
1 2 (18.18%) Front Office
2 1 (9.09%) Finance
Job Titles
1 11 (100.00%) Developer
1 11 (100.00%) Java Developer
2 3 (27.27%) Full Stack Developer
3 2 (18.18%) Agile Developer
3 2 (18.18%) Agile Java Developer
3 2 (18.18%) AWS Developer
4 1 (9.09%) Node.js Developer
Libraries, Frameworks & Software Standards
1 7 (63.64%) Node.js
1 7 (63.64%) Spring
1 7 (63.64%) Spring Boot
2 4 (36.36%) Dropwizard
2 4 (36.36%) Hibernate
3 3 (27.27%) HTML
3 3 (27.27%) HTML5
3 3 (27.27%) Kafka
3 3 (27.27%) React
3 3 (27.27%) Redux
4 2 (18.18%) ActiveMQ
4 2 (18.18%) Akka
4 2 (18.18%) RESTful
4 2 (18.18%) Spring Integration
4 2 (18.18%) WPF
4 2 (18.18%) Zuul
5 1 (9.09%) CSS
5 1 (9.09%) CSS3
5 1 (9.09%) REST
5 1 (9.09%) Web Services
Miscellaneous
1 2 (18.18%) Data Structures
1 2 (18.18%) Equities
2 1 (9.09%) Fintech
Operating Systems
1 2 (18.18%) Linux
1 2 (18.18%) Unix
Processes & Methodologies
1 9 (81.82%) Agile Software Development
2 8 (72.73%) Microservices
3 5 (45.45%) DevOps
3 5 (45.45%) OO
4 4 (36.36%) Continuous Integration
5 3 (27.27%) Low Latency
6 2 (18.18%) Garbage Collection
6 2 (18.18%) MVC
6 2 (18.18%) OOP
6 2 (18.18%) SOLID
6 2 (18.18%) Test Automation
6 2 (18.18%) Unit Testing
7 1 (9.09%) API Development
7 1 (9.09%) BDD
7 1 (9.09%) Continuous Delivery
7 1 (9.09%) High Availability
7 1 (9.09%) Open Source
7 1 (9.09%) Responsive Web Design
7 1 (9.09%) Web Design
Programming Languages
1 11 (100.00%) Java
2 10 (90.91%) Java 8
3 3 (27.27%) JavaScript
4 2 (18.18%) C#
4 2 (18.18%) ES6
4 2 (18.18%) Python
4 2 (18.18%) SQL
4 2 (18.18%) TypeScript
System Software
1 1 (9.09%) Docker