Period
to 19 April 2018

The following table provides summary statistics for contract job vacancies advertised in Bristol 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 April 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)
South West > Bristol
6 months to
19 Apr 2018
Same period 2017 Same period 2016
Rank 32 37 37
Rank change year-on-year +5 0 +22
Contract jobs citing TDD 85 68 82
As % of all contract IT jobs advertised in Bristol 4.94% 4.23% 4.71%
As % of the Processes & Methodologies category 6.03% 5.10% 5.59%
Number of daily rates quoted 60 45 61
Bristol median daily rate £444 £400 £375
Median daily rate % change year-on-year +10.94% +6.67% -
10th Percentile £281 £228 £313
90th Percentile £508 £475 £500
South West median daily rate £400 £375 £375
% change year-on-year +6.67% - -
Number of hourly rates quoted 0 0 0
Bristol median hourly rate - - -
South West median hourly rate - - -

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 Bristol with a requirement for process or methodology skills.

All Process and Methodology Skills
Bristol
Contract vacancies with a requirement for process or methodology skills 1,410 1,334 1,466
As % of all contract IT jobs advertised in Bristol 81.93% 82.91% 84.20%
Number of daily rates quoted 921 902 1,086
Bristol median daily rate £400 £388 £365
Median daily rate % change year-on-year +3.23% +6.16% -5.19%
10th Percentile £269 £250 £249
90th Percentile £525 £550 £513
South West median daily rate £405 £400 £375
% change year-on-year +1.15% +6.67% -3.23%
Number of hourly rates quoted 29 39 55
Bristol median hourly rate £18.63 £36.50 £37.50
Median hourly rate % change year-on-year -48.97% -2.67% +3.02%
10th Percentile £11.17 £13.40 £13.40
90th Percentile £46.50 £49.75 £52.40
South West median hourly rate £28.50 £38.50 £40.00
% change year-on-year -25.97% -3.75% +26.98%

TDD
Job Vacancy Trend in Bristol

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

Job vacancy trend for TDD in Bristol

TDD
Contractor Daily Rate Trend in Bristol

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

Contractor daily rate trend for TDD in Bristol

TDD
Contractor Daily Rate Histogram in Bristol

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

Contractor daily rate histogram for TDD in Bristol

For the 6 months to 19 April 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 Bristol region with a requirement for TDD.

1 64 (75.29%) Agile Software Development
2 54 (63.53%) BDD
3 39 (45.88%) Java
4 33 (38.82%) JavaScript
5 31 (36.47%) MVC
6 30 (35.29%) .NET
7 28 (32.94%) C#
7 28 (32.94%) Test Automation
8 27 (31.76%) Scrum
9 25 (29.41%) HTML
9 25 (29.41%) NoSQL
10 22 (25.88%) CSS
10 22 (25.88%) Microservices
11 21 (24.71%) REST
12 20 (23.53%) Continuous Integration
12 20 (23.53%) SQL Server
12 20 (23.53%) ASP.NET
12 20 (23.53%) SQL
13 19 (22.35%) Scala
14 18 (21.18%) Microsoft Azure
14 18 (21.18%) Kanban
15 15 (17.65%) ASP.NET MVC
15 15 (17.65%) Git (software)
15 15 (17.65%) AngularJS
15 15 (17.65%) Spring
15 15 (17.65%) Python
15 15 (17.65%) ASP.NET Web API
16 14 (16.47%) SOAP
16 14 (16.47%) Web Services
16 14 (16.47%) Ruby

TDD
Co-occurring IT Skills in Bristol 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 8 (9.41%) CMS
2 7 (8.24%) Sitecore CMS
3 5 (5.88%) Apache
4 4 (4.71%) Confluence
5 3 (3.53%) Umbraco
6 2 (2.35%) EPiServer
6 2 (2.35%) IIS
6 2 (2.35%) Liferay
7 1 (1.18%) BizTalk Server
7 1 (1.18%) Elasticsearch
7 1 (1.18%) SharePoint
Applications
1 1 (1.18%) Microsoft Excel
Cloud Services
1 18 (21.18%) Microsoft Azure
2 14 (16.47%) Amazon AWS
3 12 (14.12%) GitHub
4 6 (7.06%) Cloud Computing
5 1 (1.18%) Amazon EC2
5 1 (1.18%) BrowserStack
5 1 (1.18%) npm
Communications & Networking
1 8 (9.41%) HTTP
2 3 (3.53%) Internet
3 1 (1.18%) TCP/IP
Database & Business Intelligence
1 25 (29.41%) NoSQL
2 20 (23.53%) SQL Server
3 14 (16.47%) MongoDB
4 13 (15.29%) Relational Database
5 9 (10.59%) MySQL
5 9 (10.59%) PostgreSQL
6 7 (8.24%) CouchDB
7 5 (5.88%) Neo4j
7 5 (5.88%) RDBMS
7 5 (5.88%) Riak
8 1 (1.18%) Amazon DynamoDB
8 1 (1.18%) Apache Cassandra
8 1 (1.18%) Azure SQL Database
8 1 (1.18%) Big Data
8 1 (1.18%) BusinessObjects
8 1 (1.18%) Hadoop
8 1 (1.18%) Sybase ASE
Development Applications
1 15 (17.65%) Git (software)
2 13 (15.29%) Selenium
3 10 (11.76%) Cucumber
4 9 (10.59%) TeamCity
5 8 (9.41%) Jenkins
5 8 (9.41%) JIRA
6 6 (7.06%) Jasmine
6 6 (7.06%) Karma Test Runner
6 6 (7.06%) Maven
7 5 (5.88%) git-flow
7 5 (5.88%) JMeter
7 5 (5.88%) Mocha
7 5 (5.88%) SonarQube
8 4 (4.71%) Gatling
8 4 (4.71%) IntelliJ
8 4 (4.71%) JUnit
8 4 (4.71%) NUnit
8 4 (4.71%) The Grinder
9 3 (3.53%) PostCSS
9 3 (3.53%) Visual Studio Team System
General
1 10 (11.76%) Finance
2 8 (9.41%) Banking
3 3 (3.53%) Electronics
3 3 (3.53%) Manufacturing
3 3 (3.53%) Marketing
3 3 (3.53%) Telecoms
4 1 (1.18%) Back Office
Job Titles
1 50 (58.82%) Developer
2 19 (22.35%) Java Developer
3 15 (17.65%) .NET Developer
4 13 (15.29%) Senior Developer
5 9 (10.59%) Analyst
6 8 (9.41%) Automation Test Analyst
6 8 (9.41%) C# Developer
6 8 (9.41%) Test Analyst
7 7 (8.24%) Designer
8 6 (7.06%) Interaction Designer
8 6 (7.06%) UX Designer
9 5 (5.88%) ASP.NET Developer
9 5 (5.88%) C# .NET Developer
9 5 (5.88%) Senior C# Developer
9 5 (5.88%) Sitecore Developer
10 4 (4.71%) Agile Developer
10 4 (4.71%) Architect
10 4 (4.71%) Front End Developer (Client-Side Developer)
10 4 (4.71%) Senior Java Developer
10 4 (4.71%) Technical Architect
Libraries, Frameworks & Software Standards
1 30 (35.29%) .NET
2 25 (29.41%) HTML
3 22 (25.88%) CSS
4 21 (24.71%) REST
5 20 (23.53%) ASP.NET
6 15 (17.65%) AngularJS
6 15 (17.65%) ASP.NET MVC
6 15 (17.65%) ASP.NET Web API
6 15 (17.65%) Spring
7 14 (16.47%) SOAP
7 14 (16.47%) Web Services
8 11 (12.94%) Ajax
8 11 (12.94%) jQuery
8 11 (12.94%) React
8 11 (12.94%) RESTful
8 11 (12.94%) Spring Boot
9 10 (11.76%) XML
10 9 (10.59%) JSON
11 8 (9.41%) Play Framework
12 7 (8.24%) Sass
Miscellaneous
1 13 (15.29%) User Experience
2 8 (9.41%) Public Cloud
3 6 (7.06%) Blog
3 6 (7.06%) Greenfield Project
4 3 (3.53%) Robotics
5 2 (2.35%) Computer Science
5 2 (2.35%) iPad
5 2 (2.35%) Wiki
6 1 (1.18%) Analytical Skills
6 1 (1.18%) Digital Media
6 1 (1.18%) Digital TV
6 1 (1.18%) Enterprise Software
6 1 (1.18%) Linux Command Line
6 1 (1.18%) MPEG
6 1 (1.18%) Self-Motivation
Operating Systems
1 3 (3.53%) Windows
2 2 (2.35%) Android
2 2 (2.35%) Windows Server
3 1 (1.18%) Unix
Processes & Methodologies
1 64 (75.29%) Agile Software Development
2 54 (63.53%) BDD
3 31 (36.47%) MVC
4 28 (32.94%) Test Automation
5 27 (31.76%) Scrum
6 22 (25.88%) Microservices
7 20 (23.53%) Continuous Integration
8 18 (21.18%) Kanban
9 12 (14.12%) DevOps
9 12 (14.12%) Unit Testing
10 11 (12.94%) E-Commerce
11 10 (11.76%) Responsive Web Design
12 9 (10.59%) Continuous Delivery
12 9 (10.59%) Continuous Improvement
13 8 (9.41%) Open Source
14 7 (8.24%) Problem-Solving
14 7 (8.24%) Test Scripting
15 6 (7.06%) CQRS
15 6 (7.06%) High Availability
15 6 (7.06%) Typography
Programming Languages
1 39 (45.88%) Java
2 33 (38.82%) JavaScript
3 28 (32.94%) C#
4 20 (23.53%) SQL
5 19 (22.35%) Scala
6 15 (17.65%) Python
7 14 (16.47%) Ruby
8 7 (8.24%) Groovy
9 4 (4.71%) Java 8
9 4 (4.71%) PowerShell
10 3 (3.53%) C++
10 3 (3.53%) ES6
10 3 (3.53%) Perl
11 2 (2.35%) TypeScript
12 1 (1.18%) ES7
12 1 (1.18%) Shell Script
12 1 (1.18%) T-SQL
12 1 (1.18%) VB.NET
Qualifications
1 9 (10.59%) Degree
2 4 (4.71%) SC Cleared
2 4 (4.71%) Security Cleared
3 1 (1.18%) BPSS Clearance
3 1 (1.18%) Computer Science Degree
3 1 (1.18%) Master's Degree
Quality Assurance & Compliance
1 6 (7.06%) QA
2 1 (1.18%) Disclosure Scotland
Systems Management
1 1 (1.18%) Ansible
1 1 (1.18%) HockeyApp
1 1 (1.18%) Opscode Chef
1 1 (1.18%) Puppet
Vendors
1 8 (9.41%) Sitecore
2 7 (8.24%) Microsoft
3 3 (3.53%) SAP
4 1 (1.18%) Atlassian
4 1 (1.18%) Borland
4 1 (1.18%) hybris
4 1 (1.18%) Sybase