Period
to 19 July 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 July 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 Jul 2018
Same period 2017 Same period 2016
Rank 49 52 35
Rank change year-on-year +3 -17 -6
Contract jobs citing TDD 67 60 84
As % of all contract IT jobs advertised in Bristol 3.67% 3.49% 4.56%
As % of the Processes & Methodologies category 4.38% 4.22% 5.47%
Number of daily rates quoted 51 42 70
Bristol median daily rate £425 £418 £406
Median daily rate % change year-on-year +1.80% +2.77% +1.56%
10th Percentile £275 £306 £319
90th Percentile £525 £525 £507
South West median daily rate £400 £400 £375
% change year-on-year - +6.67% -1.32%
Number of hourly rates quoted 0 0 0
Bristol median hourly rate - - -
South West median hourly rate - - £37.50

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 1,529 1,421 1,536
As % of all contract IT jobs advertised in Bristol 83.69% 82.66% 83.39%
Number of daily rates quoted 1,003 961 1,116
Bristol median daily rate £400 £375 £375
Median daily rate % change year-on-year +6.67% - -
10th Percentile £273 £250 £260
90th Percentile £530 £530 £538
South West median daily rate £413 £396 £375
% change year-on-year +4.17% +5.60% -
Number of hourly rates quoted 48 37 58
Bristol median hourly rate £39.75 £34.00 £37.50
Median hourly rate % change year-on-year +16.91% -9.33% +5.63%
10th Percentile £11.18 £11.95 £12.00
90th Percentile £54.60 £48.11 £52.25
South West median hourly rate £40.00 £39.75 £39.00
% change year-on-year +0.63% +1.92% +11.43%

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 July 2018.

Contractor daily rate histogram for TDD in Bristol

For the 6 months to 19 July 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 52 (77.61%) Agile Software Development
2 29 (43.28%) JavaScript
3 28 (41.79%) Java
3 28 (41.79%) Continuous Integration
4 22 (32.84%) Microsoft Azure
5 21 (31.34%) Scrum
6 19 (28.36%) C#
6 19 (28.36%) BDD
7 18 (26.87%) Amazon AWS
7 18 (26.87%) HTML
8 17 (25.37%) .NET
9 15 (22.39%) SQL Server
9 15 (22.39%) OO
10 14 (20.90%) ASP.NET
10 14 (20.90%) CSS
10 14 (20.90%) MVC
10 14 (20.90%) NUnit
11 13 (19.40%) PostgreSQL
11 13 (19.40%) MySQL
12 12 (17.91%) Tomcat
12 12 (17.91%) Migration
12 12 (17.91%) NoSQL
12 12 (17.91%) Puppet
12 12 (17.91%) Unit Testing
12 12 (17.91%) AngularJS
12 12 (17.91%) Ansible
12 12 (17.91%) Greenfield Project
13 11 (16.42%) OpenStack
13 11 (16.42%) Opscode Chef
13 11 (16.42%) Test Automation

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 12 (17.91%) Tomcat
2 11 (16.42%) OpenStack
2 11 (16.42%) WebLogic
2 11 (16.42%) WebSphere
3 2 (2.99%) Adobe Experience Manager
3 2 (2.99%) CMS
3 2 (2.99%) Confluence
3 2 (2.99%) JBoss
4 1 (1.49%) Apache
4 1 (1.49%) BizTalk Server
4 1 (1.49%) Drupal
4 1 (1.49%) IIS
4 1 (1.49%) SharePoint
4 1 (1.49%) Sitecore CMS
4 1 (1.49%) Umbraco
Applications
1 1 (1.49%) Microsoft Excel
Cloud Services
1 22 (32.84%) Microsoft Azure
2 18 (26.87%) Amazon AWS
3 2 (2.99%) Cloud Computing
3 2 (2.99%) GitHub
4 1 (1.49%) npm
4 1 (1.49%) OpenShift
Communications & Networking
1 3 (4.48%) HTTP
2 1 (1.49%) Internet
2 1 (1.49%) TCP/IP
Database & Business Intelligence
1 15 (22.39%) SQL Server
2 13 (19.40%) MySQL
2 13 (19.40%) PostgreSQL
3 12 (17.91%) NoSQL
4 4 (5.97%) Relational Database
5 3 (4.48%) RDBMS
6 1 (1.49%) Big Data
6 1 (1.49%) BusinessObjects
6 1 (1.49%) Geospatial Data
6 1 (1.49%) GIS
6 1 (1.49%) JasperReports
6 1 (1.49%) MongoDB
6 1 (1.49%) Sybase ASE
Development Applications
1 14 (20.90%) NUnit
2 11 (16.42%) MSTest
3 8 (11.94%) Git (software)
3 8 (11.94%) Jenkins
4 5 (7.46%) JIRA
4 5 (7.46%) Selenium
5 4 (5.97%) TeamCity
6 3 (4.48%) Cucumber
6 3 (4.48%) Maven
6 3 (4.48%) Subversion
7 2 (2.99%) CruiseControl
7 2 (2.99%) Grunt
7 2 (2.99%) JUnit
7 2 (2.99%) Karma Test Runner
7 2 (2.99%) Mocha
7 2 (2.99%) Mockito
7 2 (2.99%) SoapUI
7 2 (2.99%) Sonatype Nexus
7 2 (2.99%) Team Foundation Server
7 2 (2.99%) Visual Studio Team System
General
1 9 (13.43%) Finance
2 4 (5.97%) Legal
3 3 (4.48%) Electronics
3 3 (4.48%) Manufacturing
3 3 (4.48%) Marketing
3 3 (4.48%) Telecoms
4 2 (2.99%) Banking
Job Titles
1 49 (73.13%) Developer
2 18 (26.87%) Java Developer
3 13 (19.40%) .NET Developer
4 6 (8.96%) JavaScript Developer
5 5 (7.46%) Backend Developer
5 5 (7.46%) Front End Developer (Client-Side Developer)
5 5 (7.46%) JavaScript Engineer
6 4 (5.97%) C# Developer
6 4 (5.97%) Designer
6 4 (5.97%) Interaction Designer
6 4 (5.97%) Programmer
6 4 (5.97%) UX Designer
7 3 (4.48%) ASP.NET Developer
7 3 (4.48%) ASP.NET MVC Developer
7 3 (4.48%) Scrum Master
8 2 (2.99%) Angular Developer
8 2 (2.99%) Applications Developer
8 2 (2.99%) Automation Tester
8 2 (2.99%) C# .NET Developer
8 2 (2.99%) React Developer
Libraries, Frameworks & Software Standards
1 18 (26.87%) HTML
2 17 (25.37%) .NET
3 14 (20.90%) ASP.NET
3 14 (20.90%) CSS
4 12 (17.91%) AngularJS
5 9 (13.43%) ASP.NET MVC
5 9 (13.43%) jQuery
6 8 (11.94%) ASP.NET Web API
6 8 (11.94%) HTML5
6 8 (11.94%) Node.js
6 8 (11.94%) React
6 8 (11.94%) REST
6 8 (11.94%) RESTful
7 6 (8.96%) Spring
8 5 (7.46%) CSS3
8 5 (7.46%) GraphQL
8 5 (7.46%) KnockoutJS
8 5 (7.46%) Sass
8 5 (7.46%) WCF
9 4 (5.97%) WinForms
Miscellaneous
1 12 (17.91%) Greenfield Project
2 10 (14.93%) User Experience
3 3 (4.48%) Public Cloud
3 3 (4.48%) Robotics
4 2 (2.99%) Analytical Skills
4 2 (2.99%) Computer Science
5 1 (1.49%) Blog
5 1 (1.49%) Digital Media
5 1 (1.49%) Digital TV
5 1 (1.49%) Foreign Exchange (FX)
5 1 (1.49%) iPad
5 1 (1.49%) Linux Command Line
5 1 (1.49%) Management Information System
5 1 (1.49%) MPEG
5 1 (1.49%) Self-Motivation
5 1 (1.49%) Wiki
Operating Systems
1 3 (4.48%) Windows
2 1 (1.49%) Android
2 1 (1.49%) Apple iOS
2 1 (1.49%) Unix
2 1 (1.49%) Windows Server
Processes & Methodologies
1 52 (77.61%) Agile Software Development
2 28 (41.79%) Continuous Integration
3 21 (31.34%) Scrum
4 19 (28.36%) BDD
5 15 (22.39%) OO
6 14 (20.90%) MVC
7 12 (17.91%) Migration
7 12 (17.91%) Unit Testing
8 11 (16.42%) Test Automation
9 10 (14.93%) Kanban
10 9 (13.43%) Front End Development
11 7 (10.45%) Microservices
11 7 (10.45%) Problem-Solving
12 6 (8.96%) Responsive Web Design
13 5 (7.46%) DevOps
13 5 (7.46%) Software Engineering
14 4 (5.97%) Open Source
14 4 (5.97%) Typography
15 3 (4.48%) Continuous Improvement
15 3 (4.48%) Pair Programming
Programming Languages
1 29 (43.28%) JavaScript
2 28 (41.79%) Java
3 19 (28.36%) C#
4 11 (16.42%) SQL
5 4 (5.97%) Java 8
5 4 (5.97%) PowerShell
5 4 (5.97%) Python
6 3 (4.48%) Perl
7 2 (2.99%) C++
7 2 (2.99%) Ruby
7 2 (2.99%) Scala
8 1 (1.49%) Apple Swift
8 1 (1.49%) ES6
8 1 (1.49%) Kotlin
8 1 (1.49%) PHP
8 1 (1.49%) Shell Script
8 1 (1.49%) T-SQL
8 1 (1.49%) TypeScript
8 1 (1.49%) VB.NET
Qualifications
1 3 (4.48%) Degree
1 3 (4.48%) SC Cleared
1 3 (4.48%) Security Cleared
2 1 (1.49%) Computer Science Degree
2 1 (1.49%) Master's Degree
Quality Assurance & Compliance
1 1 (1.49%) QA
System Software
1 2 (2.99%) Docker
2 1 (1.49%) Active Directory
Systems Management
1 12 (17.91%) Ansible
1 12 (17.91%) Puppet
2 11 (16.42%) Opscode Chef
3 1 (1.49%) Kubernetes
Vendors
1 11 (16.42%) Oracle
2 7 (10.45%) Microsoft
3 3 (4.48%) Adobe
3 3 (4.48%) SAP
4 2 (2.99%) Coverity
4 2 (2.99%) Sitecore
5 1 (1.49%) Atlassian
5 1 (1.49%) Borland
5 1 (1.49%) Google
5 1 (1.49%) Sybase