Period
to 17 June 2019

The following table provides summary statistics for contract job vacancies advertised in Glasgow 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 17 June 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)
Scotland > Glasgow
6 months to
17 Jun 2019
Same period 2018 Same period 2017
Rank 41 35 32
Rank change year-on-year -6 -3 +13
Contract jobs citing TDD 66 87 60
As % of all contract IT jobs advertised in Glasgow 4.53% 5.53% 5.21%
As % of the Processes & Methodologies category 5.07% 6.39% 5.96%
Number of daily rates quoted 41 57 41
Glasgow median daily rate £450 £400 £370
Median daily rate % change year-on-year +12.50% +8.11% +19.35%
10th Percentile £325 £311 £293
90th Percentile £575 £538 £438
Scotland median daily rate £450 £400 £413
% change year-on-year +12.50% -3.03% +13.79%
Number of hourly rates quoted 1 0 0
Glasgow median hourly rate £35.00 - -
Scotland median hourly rate £35.00 - £35.00

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 Glasgow with a requirement for process or methodology skills.

All Process and Methodology Skills
Glasgow
Contract vacancies with a requirement for process or methodology skills 1,302 1,361 1,007
As % of all contract IT jobs advertised in Glasgow 89.36% 86.47% 87.41%
Number of daily rates quoted 783 815 539
Glasgow median daily rate £425 £390 £370
Median daily rate % change year-on-year +8.97% +5.41% +5.71%
10th Percentile £271 £263 £248
90th Percentile £588 £535 £478
Scotland median daily rate £425 £400 £375
% change year-on-year +6.25% +6.67% -
Number of hourly rates quoted 44 26 10
Glasgow median hourly rate £25.25 £15.43 £17.36
Median hourly rate % change year-on-year +63.64% -11.09% -44.46%
10th Percentile £12.63 £10.35 £13.75
90th Percentile £41.13 £35.00 £41.03
Scotland median hourly rate £23.13 £18.50 £27.50
% change year-on-year +25.00% -32.73% -23.61%

TDD
Job Vacancy Trend in Glasgow

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

Job vacancy trend for TDD in Glasgow

TDD
Contractor Daily Rate Trend in Glasgow

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

Contractor daily rate trend for TDD in Glasgow

TDD
Contractor Daily Rate Histogram in Glasgow

The daily rate distribution of IT jobs citing TDD in Glasgow over the 6 months to 17 June 2019.

Contractor daily rate histogram for TDD in Glasgow

For the 6 months to 17 June 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 Glasgow region with a requirement for TDD.

1 51 (77.27%) Java
2 40 (60.61%) Agile Software Development
3 37 (56.06%) Spring
4 30 (45.45%) JavaScript
5 24 (36.36%) Amazon AWS
6 22 (33.33%) Linux
7 21 (31.82%) Mentoring
8 19 (28.79%) Banking
9 18 (27.27%) Microsoft Azure
9 18 (27.27%) Web Services
9 18 (27.27%) Microservices
10 17 (25.76%) Spring Boot
10 17 (25.76%) Technical Leadership
10 17 (25.76%) SQL
10 17 (25.76%) Test Automation
11 16 (24.24%) SOA
11 16 (24.24%) Hibernate
11 16 (24.24%) Scrum
12 15 (22.73%) Shell Script
12 15 (22.73%) MySQL
12 15 (22.73%) Security Cleared
12 15 (22.73%) CentOS
12 15 (22.73%) Unit Testing
12 15 (22.73%) Public Cloud
12 15 (22.73%) Terraform
12 15 (22.73%) TypeScript
12 15 (22.73%) MariaDB
13 14 (21.21%) BDD
13 14 (21.21%) REST
14 13 (19.70%) Cucumber

TDD
Co-occurring IT Skills in Glasgow 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 7 (10.61%) Confluence
1 7 (10.61%) Tomcat
2 6 (9.09%) CMS
3 3 (4.55%) JBoss
3 3 (4.55%) Jetty
3 3 (4.55%) WebLogic
3 3 (4.55%) WebSphere
4 1 (1.52%) Mule
4 1 (1.52%) Umbraco
Applications
1 1 (1.52%) Adobe Illustrator
1 1 (1.52%) Photoshop
Business Applications
1 1 (1.52%) Dynamics CRM
Cloud Services
1 24 (36.36%) Amazon AWS
2 18 (27.27%) Microsoft Azure
3 6 (9.09%) Google Docs
3 6 (9.09%) Slack
4 4 (6.06%) SaaS
5 3 (4.55%) Google Pay
5 3 (4.55%) Samsung Pay
6 1 (1.52%) Dynamics 365
Communications & Networking
1 6 (9.09%) Skype
2 3 (4.55%) Bluetooth
2 3 (4.55%) NFC
3 1 (1.52%) DHCP
3 1 (1.52%) DNS
3 1 (1.52%) SAN
Database & Business Intelligence
1 15 (22.73%) MariaDB
1 15 (22.73%) MySQL
2 9 (13.64%) Relational Database
3 4 (6.06%) RDBMS
4 3 (4.55%) DB2
4 3 (4.55%) MongoDB
5 2 (3.03%) NoSQL
5 2 (3.03%) Oracle Database
5 2 (3.03%) Oracle Database 10g
5 2 (3.03%) Oracle Database 11g
Development Applications
1 13 (19.70%) Cucumber
1 13 (19.70%) Selenium
2 12 (18.18%) Git (software)
3 8 (12.12%) Eclipse
4 7 (10.61%) Jenkins
4 7 (10.61%) JIRA
4 7 (10.61%) JUnit
5 6 (9.09%) FitNesse
6 5 (7.58%) Android Studio
7 3 (4.55%) Hudson
7 3 (4.55%) IntelliJ
7 3 (4.55%) Rational Team Concert
7 3 (4.55%) Subversion
7 3 (4.55%) Vagrant
8 2 (3.03%) Gradle
8 2 (3.03%) JMeter
8 2 (3.03%) Maven
8 2 (3.03%) WebDriver
8 2 (3.03%) Xcode
9 1 (1.52%) Mockito
General
1 19 (28.79%) Banking
2 13 (19.70%) Finance
3 10 (15.15%) Investment Banking
4 1 (1.52%) Retail Banking
Job Titles
1 50 (75.76%) Developer
2 27 (40.91%) Java Developer
3 16 (24.24%) Lead Developer
4 9 (13.64%) Lead Java Developer
5 6 (9.09%) Senior Developer
5 6 (9.09%) Technical Leader
6 5 (7.58%) Android Developer
6 5 (7.58%) Full Stack Developer
6 5 (7.58%) Technical Design Leader
7 3 (4.55%) iOS Developer
7 3 (4.55%) Senior Java Developer
8 2 (3.03%) Clojure Engineer
8 2 (3.03%) Front End Developer (Client-Side Developer)
8 2 (3.03%) Java Team Leader
8 2 (3.03%) Objective-C Developer
8 2 (3.03%) QA Engineer
8 2 (3.03%) QA Leader
8 2 (3.03%) Senior Android Developer
8 2 (3.03%) Team Leader
9 1 (1.52%) Integration Developer
Libraries, Frameworks & Software Standards
1 37 (56.06%) Spring
2 18 (27.27%) Web Services
3 17 (25.76%) Spring Boot
4 16 (24.24%) Hibernate
5 14 (21.21%) REST
6 12 (18.18%) HTML
7 10 (15.15%) JSON
8 9 (13.64%) RESTful
9 8 (12.12%) AngularJS
9 8 (12.12%) JPA
10 7 (10.61%) XML
11 6 (9.09%) CSS
11 6 (9.09%) J2EE
11 6 (9.09%) Java EE
11 6 (9.09%) JSP
11 6 (9.09%) SOAP
12 5 (7.58%) Android SDK
12 5 (7.58%) HTML5
13 4 (6.06%) Spring MVC
14 3 (4.55%) .NET
Miscellaneous
1 15 (22.73%) Public Cloud
2 4 (6.06%) Greenfield Project
2 4 (6.06%) Mobile App
2 4 (6.06%) Mobile Banking
3 3 (4.55%) Analytical Skills
3 3 (4.55%) Digital Wallet
3 3 (4.55%) Smartphone
4 2 (3.03%) e-Health
4 2 (3.03%) Virtual Team
5 1 (1.52%) Enterprise Software
Operating Systems
1 22 (33.33%) Linux
2 15 (22.73%) CentOS
3 7 (10.61%) Android
4 4 (6.06%) Apple iOS
5 3 (4.55%) Unix
6 1 (1.52%) Red Hat Enterprise Linux
6 1 (1.52%) Windows
6 1 (1.52%) Windows Server
Processes & Methodologies
1 40 (60.61%) Agile Software Development
2 21 (31.82%) Mentoring
3 18 (27.27%) Microservices
4 17 (25.76%) Technical Leadership
4 17 (25.76%) Test Automation
5 16 (24.24%) Scrum
5 16 (24.24%) SOA
6 15 (22.73%) Unit Testing
7 14 (21.21%) BDD
8 11 (16.67%) MVC
9 10 (15.15%) Multithreading
10 9 (13.64%) Continuous Integration
10 9 (13.64%) Kanban
11 7 (10.61%) Android Development
11 7 (10.61%) MVVM
12 6 (9.09%) Concurrent Programming
12 6 (9.09%) Continuous Delivery
13 5 (7.58%) API Design
13 5 (7.58%) Deployment Automation
13 5 (7.58%) Prototyping
Programming Languages
1 51 (77.27%) Java
2 30 (45.45%) JavaScript
3 17 (25.76%) SQL
4 15 (22.73%) Shell Script
4 15 (22.73%) TypeScript
5 8 (12.12%) Java 8
6 5 (7.58%) Clojure
7 3 (4.55%) Apple Swift
7 3 (4.55%) C#
7 3 (4.55%) Objective-C
8 2 (3.03%) ClojureScript
9 1 (1.52%) Bash Shell
9 1 (1.52%) Perl
9 1 (1.52%) PowerShell
9 1 (1.52%) Ruby
Qualifications
1 15 (22.73%) Security Cleared
2 13 (19.70%) SC Cleared
3 3 (4.55%) Degree
4 1 (1.52%) BPSS Clearance
Quality Assurance & Compliance
1 2 (3.03%) QA
2 1 (1.52%) Disclosure Scotland
2 1 (1.52%) NCSC
2 1 (1.52%) NIST
System Software
1 8 (12.12%) Docker
2 1 (1.52%) Active Directory
2 1 (1.52%) vSphere
Systems Management
1 15 (22.73%) Terraform
2 4 (6.06%) Ansible
2 4 (6.06%) Opscode Chef
2 4 (6.06%) Puppet
3 3 (4.55%) Cobbler
3 3 (4.55%) Rancher
4 2 (3.03%) Kubernetes
Vendors
1 9 (13.64%) Google
2 7 (10.61%) Oracle
3 4 (6.06%) Atlassian
4 3 (4.55%) Samsung
5 2 (3.03%) Charles River
5 2 (3.03%) IBM
5 2 (3.03%) Sybase
5 2 (3.03%) TIBCO
6 1 (1.52%) Adobe
6 1 (1.52%) Apple
6 1 (1.52%) Microsoft