The following table provides summary statistics for contract job vacancies advertised in Scotland with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 3 months to 27 June 2017 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)
UK / Scotland
3 months to
27 Jun 2017
Same period 2016 Same period 2015
Rank 29 58 50
Rank change year-on-year +29 -8  
Contract jobs citing TDD 106 94 96
As % of all contract IT jobs advertised in Scotland 4.83% 3.20% 3.25%
As % of the Processes & Methodologies category 5.86% 3.74% 3.99%
Number of daily rates quoted 81 53 56
Median daily rate £425 £375 £375
Median daily rate % change year-on-year +13.33% -  
90% offered a daily rate of more than £350 £268 £325
10% offered a daily rate of more than £600 £425 £450
UK excluding London median daily rate £420 £413 £375
% change year-on-year +1.81% +10.00%  
Number of hourly rates quoted 1 0 1
Median hourly rate £35.00 - £34.80
UK excluding London median hourly rate £41.50 £40.00 £43.75
% change year-on-year +3.75% -8.57%  

TDD is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Scotland with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Scotland
Contract job vacancies with a requirement for process and methodology skills 1809 2511 2406
As % of all contract IT job vacancies advertised in Scotland 82.45% 85.44% 81.39%
Number of daily rates quoted 1018 1429 1231
Median daily rate £400 £375 £360
Median daily rate % change year-on-year +6.66% +4.16%  
90% offered a daily rate of more than £290 £247 £263
10% offered a daily rate of more than £550 £500 £475
UK excluding London median daily rate £415 £400 £385
% change year-on-year +3.75% +3.89%  
Number of hourly rates quoted 45 56 65
Median hourly rate £37.50 £37.50 £30.50
Median hourly rate % change year-on-year - +22.95%  
90% offered a hourly rate of more than £13.75 £13.72 £13.03
10% offered a hourly rate of more than £50.00 £43.00 £40.00
UK excluding London median hourly rate £34.00 £28.50 £30.00
% change year-on-year +19.29% -5.00%  

TDD
Job Vacancy Trend in Scotland

The job posting trend of jobs advertised in Scotland citing TDD as a proportion of all contract or permanent IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for TDD in Scotland

TDD
Contractor Daily Rate Trend in Scotland

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

Contractor daily rate trend for TDD in Scotland

TDD
Contractor Daily Rate Histogram in Scotland

The daily rate distribution of IT jobs citing TDD in Scotland over the 3 months to 27 June 2017.

Contractor daily rate histogram for TDD in Scotland

TDD
Contractor Hourly Rate Trend in Scotland

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

Contractor hourly rate trend for TDD in Scotland

TDD
Contract Job Locations in Scotland

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Scotland region over the 3 months to 27 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Edinburgh +12 52 £425 +13.33% 18
Glasgow +29 48 £381 +1.66% 19
West Lothian -1 5 £375 -11.24% 1
Dundee +3 1 - - 1
TDD
UK

For the 6 months to 27 June 2017, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Scotland region with a requirement for TDD.

1 135 (75.42%) Agile Software Development
2 103 (57.54%) Java
3 71 (39.66%) JavaScript
4 67 (37.43%) HTML
5 64 (35.75%) AngularJS
6 62 (34.64%) Scrum
7 61 (34.08%) BDD
8 57 (31.84%) CSS
9 50 (27.93%) Continuous Integration
10 48 (26.82%) Spring
11 45 (25.14%) Web Services
12 40 (22.35%) SQL
13 38 (21.23%) MVC
14 36 (20.11%) Kanban
15 35 (19.55%) Git (software)
16 34 (18.99%) jQuery
17 33 (18.44%) Test Automation
17 33 (18.44%) Finance
17 33 (18.44%) .NET
18 32 (17.88%) C#
19 29 (16.20%) Hibernate
20 27 (15.08%) SDLC
21 25 (13.97%) Jenkins
21 25 (13.97%) ASP.NET
21 25 (13.97%) Cucumber
22 24 (13.41%) Selenium
23 23 (12.85%) Maven
24 22 (12.29%) HTML5
24 22 (12.29%) Team Foundation Server
24 22 (12.29%) Node.js

TDD
Co-occurring IT Skills in Scotland 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 13 (7.26%) EPiServer
2 10 (5.59%) JBoss
3 8 (4.47%) WebSphere
4 6 (3.35%) WebSphere Portal
5 5 (2.79%) Apache
6 4 (2.23%) Oracle SOA Suite
6 4 (2.23%) Tomcat
7 2 (1.12%) Apache Solr
7 2 (1.12%) Cloud Foundry
7 2 (1.12%) CMS
7 2 (1.12%) Elasticsearch
7 2 (1.12%) GeoServer
7 2 (1.12%) Sitecore CMS
7 2 (1.12%) WebSphere Application Server
8 1 (0.56%) Apache Spark
8 1 (0.56%) Mule
Applications
1 5 (2.79%) Photoshop
2 4 (2.23%) Adobe Creative Suite
3 1 (0.56%) Adobe Illustrator
Business Applications
1 3 (1.68%) BusinessWorks
2 2 (1.12%) SAP Oil and Gas
3 1 (0.56%) Oracle BPM
Cloud Services
1 17 (9.50%) Microsoft Azure
2 12 (6.70%) Amazon AWS
2 12 (6.70%) Amazon EC2
3 10 (5.59%) Amazon SQS
4 9 (5.03%) Amazon S3
4 9 (5.03%) GitHub
5 3 (1.68%) Sauce Labs
6 1 (0.56%) BrowserStack
6 1 (0.56%) SaaS
Communications & Networking
1 2 (1.12%) HTTP
2 1 (0.56%) DNS
2 1 (0.56%) Internet
2 1 (0.56%) SMS
Database & Business Intelligence
1 21 (11.73%) NoSQL
2 12 (6.70%) Oracle Database
3 9 (5.03%) Relational Database
3 9 (5.03%) SQL Server
4 8 (4.47%) Oracle Database 11g
4 8 (4.47%) Oracle Database 12c
5 7 (3.91%) DB2
6 6 (3.35%) Apache Cassandra
7 5 (2.79%) KDB
7 5 (2.79%) Kdb+
7 5 (2.79%) SQL Server 2014
8 4 (2.23%) GIS
8 4 (2.23%) RDBMS
9 3 (1.68%) MongoDB
10 2 (1.12%) MySQL
10 2 (1.12%) Oracle Database 10g
10 2 (1.12%) PostgreSQL
10 2 (1.12%) SQL Server 2012
11 1 (0.56%) Big Data
11 1 (0.56%) SQL Server 2008
Development Applications
1 35 (19.55%) Git (software)
2 25 (13.97%) Cucumber
2 25 (13.97%) Jenkins
3 24 (13.41%) Selenium
4 23 (12.85%) Maven
5 22 (12.29%) Team Foundation Server
6 20 (11.17%) gulp
7 14 (7.82%) Moq
8 13 (7.26%) Octopus Deploy
9 11 (6.15%) JUnit
9 11 (6.15%) Mockito
10 10 (5.59%) Subversion
11 8 (4.47%) JIRA
12 7 (3.91%) Bower
12 7 (3.91%) Grunt
13 6 (3.35%) Eclipse
14 5 (2.79%) Gradle
14 5 (2.79%) Jasmine
15 4 (2.23%) Hudson
15 4 (2.23%) Visual Studio
General
1 33 (18.44%) Finance
2 12 (6.70%) Banking
3 11 (6.15%) Financial Institution
4 4 (2.23%) Legal
5 3 (1.68%) Telecoms
6 2 (1.12%) Electronics
6 2 (1.12%) Manufacturing
6 2 (1.12%) Marketing
7 1 (0.56%) Games
7 1 (0.56%) Pharmaceutical
7 1 (0.56%) Private Banking
7 1 (0.56%) Retail
Job Titles
1 107 (59.78%) Developer
2 62 (34.64%) Java Developer
3 16 (8.94%) Senior Developer
4 15 (8.38%) Architect
5 13 (7.26%) AWS Developer
5 13 (7.26%) C# Developer
6 12 (6.70%) Angular Developer
6 12 (6.70%) JavaScript Developer
7 11 (6.15%) Scrum Master
8 10 (5.59%) .NET Developer
8 10 (5.59%) C# .NET Developer
9 9 (5.03%) Front End Developer (Client-Side Developer)
9 9 (5.03%) Full Stack Developer
9 9 (5.03%) Senior Java Developer
10 8 (4.47%) Analyst
10 8 (4.47%) Software Engineer
11 7 (3.91%) ASP.NET Developer
11 7 (3.91%) ASP.NET MVC Developer
11 7 (3.91%) Business Analyst
11 7 (3.91%) C# ASP.NET Developer
Libraries, Frameworks & Software Standards
1 67 (37.43%) HTML
2 64 (35.75%) AngularJS
3 57 (31.84%) CSS
4 48 (26.82%) Spring
5 45 (25.14%) Web Services
6 34 (18.99%) jQuery
7 33 (18.44%) .NET
8 29 (16.20%) Hibernate
9 25 (13.97%) ASP.NET
10 22 (12.29%) HTML5
10 22 (12.29%) Node.js
11 20 (11.17%) ASP.NET Web API
12 19 (10.61%) .NET Framework
12 19 (10.61%) CSS3
12 19 (10.61%) J2EE
12 19 (10.61%) Twitter Bootstrap
13 18 (10.06%) React
14 17 (9.50%) Entity Framework
14 17 (9.50%) XSLT
15 14 (7.82%) SOAP
Miscellaneous
1 9 (5.03%) User Experience
2 5 (2.79%) Mobile App
3 3 (1.68%) Enterprise Software
3 3 (1.68%) Greenfield Project
4 2 (1.12%) Algorithms
4 2 (1.12%) Analytical Skills
4 2 (1.12%) Computer Science
4 2 (1.12%) Virtual Team
5 1 (0.56%) Data Structures
5 1 (0.56%) Linux Command Line
5 1 (0.56%) Mobile Banking
5 1 (0.56%) Web 2.0
Operating Systems
1 11 (6.15%) Linux
2 8 (4.47%) Unix
3 2 (1.12%) Red Hat Enterprise Linux
4 1 (0.56%) Android
4 1 (0.56%) Apple iOS
Processes & Methodologies
1 135 (75.42%) Agile Software Development
2 62 (34.64%) Scrum
3 61 (34.08%) BDD
4 50 (27.93%) Continuous Integration
5 38 (21.23%) MVC
6 36 (20.11%) Kanban
7 33 (18.44%) Test Automation
8 27 (15.08%) SDLC
9 22 (12.29%) DevOps
10 20 (11.17%) Front End Development
11 19 (10.61%) Software Engineering
12 16 (8.94%) Continuous Delivery
12 16 (8.94%) OO
13 15 (8.38%) Mentoring
13 15 (8.38%) Migration
14 13 (7.26%) Responsive Web Design
15 12 (6.70%) Pair Programming
16 11 (6.15%) Business Analysis
16 11 (6.15%) Coaching
16 11 (6.15%) User Stories
Programming Languages
1 103 (57.54%) Java
2 71 (39.66%) JavaScript
3 40 (22.35%) SQL
4 32 (17.88%) C#
5 18 (10.06%) Python
6 17 (9.50%) Ruby
7 10 (5.59%) Scala
8 5 (2.79%) ES6
8 5 (2.79%) PowerShell
9 4 (2.23%) CoffeeScript
9 4 (2.23%) Perl
9 4 (2.23%) PHP
9 4 (2.23%) XAML
10 3 (1.68%) PL/SQL
10 3 (1.68%) Shell Script
11 2 (1.12%) C++
11 2 (1.12%) ECMAScript
11 2 (1.12%) Go
12 1 (0.56%) C
12 1 (0.56%) R
Qualifications
1 5 (2.79%) MCTS
1 5 (2.79%) Microsoft Certification
1 5 (2.79%) Security Cleared
2 3 (1.68%) Degree
2 3 (1.68%) SC Cleared
3 2 (1.12%) Computer Science Degree
4 1 (0.56%) Postgraduate
Quality Assurance & Compliance
1 9 (5.03%) QA
2 4 (2.23%) MiFID
3 3 (1.68%) Disclosure Scotland
4 1 (0.56%) Data Quality
System Software
1 9 (5.03%) Docker
2 1 (0.56%) Firmware
Systems Management
1 8 (4.47%) Puppet
2 3 (1.68%) HP Quality Center
2 3 (1.68%) TIBCO Hawk
3 2 (1.12%) Ansible
3 2 (1.12%) CA Service Virtualization
3 2 (1.12%) Opscode Chef
4 1 (0.56%) Business Desktop Deployment
Vendors
1 15 (8.38%) Oracle
2 8 (4.47%) Red Hat
3 6 (3.35%) Microsoft
4 4 (2.23%) Adobe
5 3 (1.68%) HP
5 3 (1.68%) Sybase
5 3 (1.68%) TIBCO
5 3 (1.68%) Twitter
6 2 (1.12%) CA
6 2 (1.12%) Perforce
6 2 (1.12%) SAP
6 2 (1.12%) Sitecore
7 1 (0.56%) ESRI
7 1 (0.56%) IBM
7 1 (0.56%) Netezza
7 1 (0.56%) Talend
7 1 (0.56%) VMware
7 1 (0.56%) Xamarin
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