Period
to 15 February 2019

The following table provides summary statistics for contract job vacancies advertised in Reading 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 15 February 2019 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 > Reading
6 months to
15 Feb 2019
Same period 2018 Same period 2017
Rank 36 28 44
Rank change year-on-year -8 +16 +1
Contract jobs citing TDD 72 77 55
As % of all contract IT jobs advertised in Reading 4.82% 6.28% 3.84%
As % of the Processes & Methodologies category 5.57% 7.44% 4.66%
Number of daily rates quoted 61 70 32
Reading median daily rate £450 £375 £413
Median daily rate % change year-on-year +20.00% -9.09% +9.71%
10th Percentile £375 £306 £365
90th Percentile £538 £466 £533
Berkshire median daily rate £450 £375 £413
% change year-on-year +20.00% -9.09% +9.85%
Number of hourly rates quoted 0 0 0
Reading median hourly rate - - -
Berkshire median hourly rate - £8.00 -

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 Reading with a requirement for process or methodology skills.

All Process and Methodology Skills
Reading
Contract vacancies with a requirement for process or methodology skills 1,293 1,035 1,181
As % of all contract IT jobs advertised in Reading 86.55% 84.42% 82.41%
Number of daily rates quoted 732 657 588
Reading median daily rate £450 £400 £400
Median daily rate % change year-on-year +12.50% - -
10th Percentile £285 £275 £220
90th Percentile £600 £575 £563
Berkshire median daily rate £440 £425 £400
% change year-on-year +3.53% +6.25% -
Number of hourly rates quoted 31 25 44
Reading median hourly rate £45.00 £14.50 £20.00
Median hourly rate % change year-on-year +210.34% -27.50% -35.28%
10th Percentile £16.25 £11.25 £13.00
90th Percentile £63.75 £44.40 £55.65
Berkshire median hourly rate £17.50 £14.25 £19.09
% change year-on-year +22.81% -25.34% -23.65%

TDD
Job Vacancy Trend in Reading

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

Job vacancy trend for TDD in Reading

TDD
Contractor Daily Rate Trend in Reading

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

Contractor daily rate trend for TDD in Reading

TDD
Contractor Daily Rate Histogram in Reading

The daily rate distribution of IT jobs citing TDD in Reading over the 6 months to 15 February 2019.

Contractor daily rate histogram for TDD in Reading

For the 6 months to 15 February 2019, 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 Reading region with a requirement for TDD.

1 50 (69.44%) Agile Software Development
2 40 (55.56%) C#
2 40 (55.56%) .NET
3 36 (50.00%) JavaScript
4 32 (44.44%) CSS
5 31 (43.06%) BDD
6 27 (37.50%) Microsoft Azure
7 26 (36.11%) ASP.NET Web API
8 25 (34.72%) MVC
9 24 (33.33%) OO
10 23 (31.94%) OOP
10 23 (31.94%) Git (software)
10 23 (31.94%) Docker
11 22 (30.56%) Node.js
12 21 (29.17%) React
12 21 (29.17%) AngularJS
13 20 (27.78%) ASP.NET
14 19 (26.39%) SQL Server
14 19 (26.39%) Continuous Integration
15 18 (25.00%) Visual Studio Team System
16 17 (23.61%) Microservices
17 16 (22.22%) Test Automation
18 15 (20.83%) HTML
18 15 (20.83%) SOLID
19 14 (19.44%) Kubernetes
19 14 (19.44%) .NET Core
19 14 (19.44%) Amazon AWS
20 12 (16.67%) HTML5
21 11 (15.28%) Cosmos DB
22 10 (13.89%) CSS3

TDD
Co-occurring IT Skills in Reading 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 5 (6.94%) Elasticsearch
2 4 (5.56%) Apache Spark
3 1 (1.39%) JBoss
3 1 (1.39%) OpenStack
3 1 (1.39%) Tomcat
3 1 (1.39%) WebSphere
3 1 (1.39%) WebSphere Application Server
Cloud Services
1 27 (37.50%) Microsoft Azure
2 14 (19.44%) Amazon AWS
3 5 (6.94%) SaaS
4 2 (2.78%) GitHub
4 2 (2.78%) Google Cloud Platform
5 1 (1.39%) Amazon EC2
5 1 (1.39%) IaaS
5 1 (1.39%) npm
5 1 (1.39%) PaaS
5 1 (1.39%) Serverless
Communications & Networking
1 3 (4.17%) HTTP
Database & Business Intelligence
1 19 (26.39%) SQL Server
2 11 (15.28%) Cosmos DB
3 6 (8.33%) Azure SQL Database
4 4 (5.56%) Big Data
4 4 (5.56%) Hadoop
4 4 (5.56%) NoSQL
5 2 (2.78%) MongoDB
5 2 (2.78%) SQL Server 2016
6 1 (1.39%) Data Warehouse
6 1 (1.39%) MySQL
6 1 (1.39%) Power BI
Development Applications
1 23 (31.94%) Git (software)
2 18 (25.00%) Visual Studio Team System
3 7 (9.72%) Jenkins
4 5 (6.94%) Cucumber
4 5 (6.94%) Subversion
5 4 (5.56%) Grunt
5 4 (5.56%) gulp
5 4 (5.56%) Jasmine
5 4 (5.56%) Maven
5 4 (5.56%) PhantomJS
5 4 (5.56%) TeamCity
5 4 (5.56%) webpack
6 3 (4.17%) JUnit
6 3 (4.17%) Mockito
6 3 (4.17%) Selenium
6 3 (4.17%) Team Foundation Server
7 2 (2.78%) DbUnit
7 2 (2.78%) jMock
7 2 (2.78%) SonarQube
8 1 (1.39%) Vagrant
General
1 3 (4.17%) Telecoms
2 1 (1.39%) Retail
Job Titles
1 65 (90.28%) Developer
2 17 (23.61%) .NET Developer
3 15 (20.83%) Full Stack Developer
4 10 (13.89%) React Developer
5 9 (12.50%) C# Developer
5 9 (12.50%) Front End Developer (Client-Side Developer)
6 8 (11.11%) Senior Developer
7 6 (8.33%) Java Developer
7 6 (8.33%) JavaScript Developer
8 5 (6.94%) Azure Developer
9 4 (5.56%) Software Engineer
9 4 (5.56%) UI Developer
10 3 (4.17%) Agile Developer
10 3 (4.17%) C# .NET Developer
10 3 (4.17%) HTML CSS Developer
10 3 (4.17%) HTML Developer
10 3 (4.17%) Software Developer
11 2 (2.78%) Developer/Software Engineer
11 2 (2.78%) Python Engineer
11 2 (2.78%) Tester
Libraries, Frameworks & Software Standards
1 40 (55.56%) .NET
2 32 (44.44%) CSS
3 26 (36.11%) ASP.NET Web API
4 22 (30.56%) Node.js
5 21 (29.17%) AngularJS
5 21 (29.17%) React
6 20 (27.78%) ASP.NET
7 15 (20.83%) HTML
8 14 (19.44%) .NET Core
9 12 (16.67%) HTML5
10 10 (13.89%) CSS3
11 8 (11.11%) Sass
12 7 (9.72%) RESTful
12 7 (9.72%) Spring
13 6 (8.33%) LESS
13 6 (8.33%) RabbitMQ
13 6 (8.33%) REST
14 5 (6.94%) Angular 2
14 5 (6.94%) SOAP
14 5 (6.94%) Web Services
Miscellaneous
1 3 (4.17%) Greenfield Project
2 2 (2.78%) Linked Data
2 2 (2.78%) Semantic Web
2 2 (2.78%) User Experience
3 1 (1.39%) Driving Licence
3 1 (1.39%) Enterprise Software
3 1 (1.39%) Mobile App
3 1 (1.39%) NHS
Operating Systems
1 4 (5.56%) Linux
2 1 (1.39%) Unix
Processes & Methodologies
1 50 (69.44%) Agile Software Development
2 31 (43.06%) BDD
3 25 (34.72%) MVC
4 24 (33.33%) OO
5 23 (31.94%) OOP
6 19 (26.39%) Continuous Integration
7 17 (23.61%) Microservices
8 16 (22.22%) Test Automation
9 15 (20.83%) SOLID
10 9 (12.50%) Scrum
11 8 (11.11%) Front End Development
12 6 (8.33%) Software Engineering
13 5 (6.94%) API Development
13 5 (6.94%) Dependency Injection
14 4 (5.56%) Continuous Improvement
14 4 (5.56%) DevOps
14 4 (5.56%) Web Development
15 3 (4.17%) Concurrent Programming
15 3 (4.17%) Continuous Delivery
15 3 (4.17%) E-Commerce
Programming Languages
1 40 (55.56%) C#
2 36 (50.00%) JavaScript
3 8 (11.11%) SQL
4 7 (9.72%) Java
5 6 (8.33%) F#
6 4 (5.56%) Python
6 4 (5.56%) TypeScript
7 1 (1.39%) Java 8
7 1 (1.39%) Shell Script
Qualifications
1 2 (2.78%) SC Cleared
1 2 (2.78%) Security Cleared
Quality Assurance & Compliance
1 1 (1.39%) GDPR
1 1 (1.39%) PMO
System Software
1 23 (31.94%) Docker
2 1 (1.39%) VMware Infrastructure
2 1 (1.39%) vSphere
Systems Management
1 14 (19.44%) Kubernetes
2 3 (4.17%) Ansible
2 3 (4.17%) Opscode Chef
3 1 (1.39%) Grafana
3 1 (1.39%) Prometheus
3 1 (1.39%) Puppet
3 1 (1.39%) Terraform
Vendors
1 5 (6.94%) Google
2 3 (4.17%) Telerik
3 2 (2.78%) Hortonworks
3 2 (2.78%) Sitecore
4 1 (1.39%) Microsoft
4 1 (1.39%) VMware